{"id":7134,"date":"2025-05-17T07:50:46","date_gmt":"2025-05-17T07:50:46","guid":{"rendered":"https:\/\/protech-transfer.com\/knowledge-articles\/"},"modified":"2025-12-24T11:16:08","modified_gmt":"2025-12-24T11:16:08","slug":"knowledge-articles","status":"publish","type":"page","link":"https:\/\/protech-transfer.com\/vi\/knowledge-articles\/","title":{"rendered":"Knowledge Articles"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7134\" class=\"elementor elementor-7134 elementor-5656\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b4773f31 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default exad-glass-effect-no wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no exad-sticky-section-no\" data-id=\"3b4773f31\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-412fc47 exad-glass-effect-no exad-sticky-section-no\" data-id=\"412fc47\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-edb84d9 exad-sticky-section-no exad-glass-effect-no elementor-widget elementor-widget-spacer\" data-id=\"edb84d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ba404f elementor-align-center elementor-icon-list--layout-traditional elementor-list-item-link-full_width exad-sticky-section-no exad-glass-effect-no elementor-widget elementor-widget-icon-list\" data-id=\"8ba404f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-book\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M448 360V24c0-13.3-10.7-24-24-24H96C43 0 0 43 0 96v320c0 53 43 96 96 96h328c13.3 0 24-10.7 24-24v-16c0-7.5-3.5-14.3-8.9-18.7-4.2-15.4-4.2-59.3 0-74.7 5.4-4.3 8.9-11.1 8.9-18.6zM128 134c0-3.3 2.7-6 6-6h212c3.3 0 6 2.7 6 6v20c0 3.3-2.7 6-6 6H134c-3.3 0-6-2.7-6-6v-20zm0 64c0-3.3 2.7-6 6-6h212c3.3 0 6 2.7 6 6v20c0 3.3-2.7 6-6 6H134c-3.3 0-6-2.7-6-6v-20zm253.4 250H96c-17.7 0-32-14.3-32-32 0-17.6 14.4-32 32-32h285.4c-1.9 17.1-1.9 46.9 0 64z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">C\u00e1c b\u00e0i vi\u1ebft chuy\u00ean m\u00f4n heree<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-db54054 elementor-section-boxed elementor-section-height-default elementor-section-height-default exad-glass-effect-no wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no exad-sticky-section-no\" data-id=\"db54054\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2dd6ff5 exad-glass-effect-no exad-sticky-section-no\" data-id=\"2dd6ff5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-74edea7 exad-sticky-section-no exad-glass-effect-no elementor-widget elementor-widget-exad-filterable-post\" data-id=\"74edea7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"exad-filterable-post.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\r\n\t\t<div class=\"exad-filterable-items exad-filterable-menu-container-align-top\" id =\"exad-filterable-filterable-id-74edea7\">\r\n\t\t\t\t\t\t<div class=\"exad-filterable-menu-container\">\r\n\t\t\t\t\t\r\n\t\t<ul class=\"exad-filterable-menu\"  >\r\n\t\t\t<li class=\"filter-item current\"  data-filter=\"*\">\r\n\t\t\t\tT\u1ea5t c\u1ea3 b\u00e0i vi\u1ebft\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t<li class=\"filter-item\" data-filter=\".bai-viet-ve-duc\">\r\n\t\t\t\t\t\tB\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t<li class=\"filter-item\" data-filter=\".bai-viet-ve-laser\">\r\n\t\t\t\t\t\tB\u00e0i vi\u1ebft v\u1ec1 laser\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t<li class=\"filter-item\" data-filter=\".bai-viet-ve-xu-ly-be-mat\">\r\n\t\t\t\t\t\tB\u00e0i vi\u1ebft v\u1ec1 x\u1eed l\u00fd b\u1ec1 m\u1eb7t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t<li class=\"filter-item\" data-filter=\".bai-viet-khac\">\r\n\t\t\t\t\t\tB\u00e0i vi\u1ebft kh\u00e1c\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\r\n\t\t<\/ul>\r\n\t\r\n    \t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"exad-filterable-controls\">\r\n\t\t\t\t<div class=\"filterable-post-container exad-row-wrapper exad-col-3\" id=\"filters-74edea7\">\r\n\t\t\t\t\t\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item optional-vi bai-viet-khac\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2025\/12\/08\/precious-metal-recovery-from-electro-polishing\/\" >\r\n                    <img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Precious Metal Recovery from Electro-Polishing-part-1b\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-khac\/\">B\u00e0i vi\u1ebft kh\u00e1c<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2025\/12\/08\/precious-metal-recovery-from-electro-polishing\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 8, 2025<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2025\/12\/08\/precious-metal-recovery-from-electro-polishing\/\" class=\"exad-post-grid-title\">Thu h\u1ed3i kim lo\u1ea1i qu\u00fd t\u1eeb qu\u00e1 tr\u00ecnh \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t trang s\u1ee9c c\u00f3 th\u1ec3 thu h\u1ed3i v\u00e0ng, b\u1ea1c...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2025\/12\/08\/precious-metal-recovery-from-electro-polishing\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item optional-vi bai-viet-ve-laser\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/laser-welding-pulse-shaping\/\" >\r\n                    <img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Recommended Laser Parameters for Different Metals and Applications\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-laser\/\">B\u00e0i vi\u1ebft v\u1ec1 laser<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/laser-welding-pulse-shaping\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/laser-welding-pulse-shaping\/\" class=\"exad-post-grid-title\">T\u1ea1o h\u00ecnh xung h\u00e0n laser<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Laser Welding Pulse Shaping &nbsp; Square (D\u1ea1ng S\u00f3ng Vu\u00f4ng) M\u1ed9t d\u1ea1ng s\u00f3ng ph\u1ed5 bi\u1ebfn, trong...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/laser-welding-pulse-shaping\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item bai-viet-ve-duc tuyen-chon trang-suc\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/shrinkage-porosity-in-jewelry-casting\/\" >\r\n                    <img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Diagram showing the influence of feeding design on shrinkage porosity\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-duc\/\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/shrinkage-porosity-in-jewelry-casting\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/shrinkage-porosity-in-jewelry-casting\/\" class=\"exad-post-grid-title\">Co r\u00fat kim lo\u1ea1i trong qu\u00e1 tr\u00ecnh \u0111\u00fac trang s\u1ee9c<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    R\u1ed7 co r\u00fat l\u00e0 g\u00ec? R\u1ed7 co r\u00fat l\u00e0 c\u00e1c khoang r\u1ed7 kh\u00f4ng \u0111\u1ec1u xu\u1ea5t...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/shrinkage-porosity-in-jewelry-casting\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item bai-viet-ve-duc\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/hard-and-soft-spots-in-jewelry\/\" >\r\n                    <img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Image of ceramic inclusions (silica and alumina) found in jewelry\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-duc\/\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/hard-and-soft-spots-in-jewelry\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/hard-and-soft-spots-in-jewelry\/\" class=\"exad-post-grid-title\">V\u1ebft C\u1ee9ng v\u00e0 M\u1ec1m trong Trang S\u1ee9c<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Hi\u1ec3u v\u1ec1 c\u00e1c v\u1ebft tr\u00ean trang s\u1ee9c C\u00e1c v\u1ebft tr\u00ean trang s\u1ee9c l\u00e0 nh\u1eefng h\u1ea1t\/t\u1ea1p...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/hard-and-soft-spots-in-jewelry\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item bai-viet-ve-duc\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/gas-porosity-in-jewelry-casting\/\" >\r\n                    <img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Image showing contaminated scrap metal used in casting processes\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-duc\/\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/gas-porosity-in-jewelry-casting\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/gas-porosity-in-jewelry-casting\/\" class=\"exad-post-grid-title\">R\u1ed7 kh\u00ed trong \u0111\u00fac trang s\u1ee9c<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Gas Porosity l\u00e0 g\u00ec? R\u1ed7 kh\u00ed l\u00e0 nh\u1eefng l\u1ed7 tr\u00f2n nh\u1ecf xu\u1ea5t hi\u1ec7n b\u00ean d\u01b0\u1edbi...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/gas-porosity-in-jewelry-casting\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item bai-viet-ve-duc\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/form-filling-theory-and-alloy-properties-in-jewelry-casting\/\" >\r\n                    <img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Diagram illustrating the factors affecting metal flow in jewelry casting\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-duc\/\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/form-filling-theory-and-alloy-properties-in-jewelry-casting\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/form-filling-theory-and-alloy-properties-in-jewelry-casting\/\" class=\"exad-post-grid-title\">L\u1ea5p \u0111\u1ea7y khu\u00f4n: L\u00fd thuy\u1ebft v\u00e0 \u0110\u1eb7c t\u00ednh H\u1ee3p kim trong \u0110\u00fac Trang S\u1ee9c<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Hi\u1ec3u v\u1ec1 D\u00f2ng ch\u1ea3y Kim lo\u1ea1i trong \u0110\u00fac Trang S\u1ee9c C\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a kim...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/form-filling-theory-and-alloy-properties-in-jewelry-casting\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item optional-vi bai-viet-ve-xu-ly-be-mat\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/electro-polishing-for-metal-parts-process-and-key-benefits\/\" >\r\n                    <img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Complex shaped part undergoing electro polishing with minimal wear\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-xu-ly-be-mat\/\">B\u00e0i vi\u1ebft v\u1ec1 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/electro-polishing-for-metal-parts-process-and-key-benefits\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/electro-polishing-for-metal-parts-process-and-key-benefits\/\" class=\"exad-post-grid-title\">Electro Polishing cho c\u00e1c chi ti\u1ebft kim lo\u1ea1i: Quy tr\u00ecnh v\u00e0 nh\u1eefng l\u1ee3i \u00edch ch\u00ednh<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Electro Polishing l\u00e0 g\u00ec? Electro Polishing l\u00e0 m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd b\u1ec1 m\u1eb7t kim...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/electro-polishing-for-metal-parts-process-and-key-benefits\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item bai-viet-ve-duc\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/discoloration-the-firestain-problem-in-sterling-silver\/\" >\r\n                    <img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Close up image of sterling silver jewelry showing firestain discoloration\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-duc\/\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/discoloration-the-firestain-problem-in-sterling-silver\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/discoloration-the-firestain-problem-in-sterling-silver\/\" class=\"exad-post-grid-title\">S\u1ef1 \u0111\u1ed5i m\u00e0u: V\u1ea5n \u0111\u1ec1 Firestain trong b\u1ea1c Sterling<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Firestain l\u00e0 g\u00ec? Fire Stain l\u00e0 m\u1ed9t l\u1ed7i \u0111\u1ed5i m\u00e0u ph\u1ed5 bi\u1ebfn xu\u1ea5t hi\u1ec7n tr\u00ean...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/discoloration-the-firestain-problem-in-sterling-silver\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\r\n<article class=\"exad-post-grid-three exad-col  exad-filterable-item bai-viet-ve-duc\">\r\n    <div class=\"exad-post-grid-container image-position-top exad-post-grid-equal-height- \">\r\n                    <figure class=\"exad-post-grid-thumbnail\">\r\n                <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/cracks-and-tears-in-metal-casting-causes-and-prevention\/\" >\r\n                    <img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Close up of metal with hot cracks due to rapid cooling\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                <\/a>\r\n                \r\n                            <\/figure>\r\n        \t\t\r\n\t\t        <div class=\"exad-post-grid-body\">\r\n                            <ul class=\"exad-post-grid-category cat-posdefault\">\r\n                    <li><a href=\"https:\/\/protech-transfer.com\/vi\/bai-viet-ve-duc\/\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/a><\/li>                <\/ul>\r\n                                <ul class=\"exad-post-data show-avatar-no\">\r\n                                                                            <li class=\"exad-post-date\">\r\n                                <span>\r\n                                                                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/cracks-and-tears-in-metal-casting-causes-and-prevention\/\" class=\"exad-post-grid-author-date\">Th\u00e1ng m\u01b0\u1eddi hai 2, 2024<\/a>\r\n                                <\/span>                          \r\n                            <\/li> \r\n                           \r\n                    <\/ul>\r\n                \t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                    <h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\r\n                        <a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/cracks-and-tears-in-metal-casting-causes-and-prevention\/\" class=\"exad-post-grid-title\">N\u1ee9t v\u00e0 R\u00e1ch trong \u0110\u00fac Kim Lo\u1ea1i: Nguy\u00ean Nh\u00e2n v\u00e0 Bi\u1ec7n Ph\u00e1p Ph\u00f2ng Ng\u1eeba<\/a>\r\n\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\r\n                    <\/h3>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n                                <div class=\"exad-post-grid-description\">\r\n                    Hi\u1ec3u v\u1ec1 N\u1ee9t trong \u0110\u00fac Kim Lo\u1ea1i C\u00e1c v\u1ebft n\u1ee9t trong \u0111\u00fac kim lo\u1ea1i c\u00f3...                <\/div>\r\n                            <div class=\"exad-post-footer\"><a href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/cracks-and-tears-in-metal-casting-causes-and-prevention\/\" target=\"_blank\" class=\"read-more\">\u0110\u1ecdc th\u00eam<\/a><\/div>\r\n            \r\n        <\/div>\r\n        \t\t\r\n\t\t\t\t\r\n    <\/div>\r\n<\/article>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n    \t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da024cf elementor-hidden-desktop elementor-hidden-tablet elementor-hidden-mobile elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 exad-sticky-section-no exad-glass-effect-no elementor-widget elementor-widget-portfolio\" data-id=\"da024cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;columns&quot;:&quot;3&quot;,&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;item_ratio&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0.66,&quot;sizes&quot;:[]},&quot;item_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"portfolio.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-portfolio__filters\">\n\t\t\t<li class=\"elementor-portfolio__filter elementor-active\" tabindex=\"0\" data-filter=\"__all\">All<\/li>\n\t\t\t\t\t\t\t<li class=\"elementor-portfolio__filter\" tabindex=\"0\" data-filter=\"58\">B\u00e0i vi\u1ebft kh\u00e1c<\/li>\n\t\t\t\t\t\t\t<li class=\"elementor-portfolio__filter\" tabindex=\"0\" data-filter=\"56\">B\u00e0i vi\u1ebft v\u1ec1 laser<\/li>\n\t\t\t\t\t\t\t<li class=\"elementor-portfolio__filter\" tabindex=\"0\" data-filter=\"57\">B\u00e0i vi\u1ebft v\u1ec1 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/li>\n\t\t\t\t\t\t\t<li class=\"elementor-portfolio__filter\" tabindex=\"0\" data-filter=\"55\">B\u00e0i vi\u1ebft v\u1ec1 \u0111\u00fac<\/li>\n\t\t\t\t\t<\/ul>\n\t\t\t\t<div class=\"elementor-portfolio elementor-grid elementor-posts-container\" role=\"list\">\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-58 post-7190 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-khac\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2025\/12\/08\/precious-metal-recovery-from-electro-polishing\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-300x200.jpg\" class=\"attachment-medium size-medium wp-image-6559\" alt=\"Precious Metal Recovery from Electro-Polishing-part-1b\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2025\/12\/Precious-Metal-Recovery-from-Electro-Polishing-part-1b.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tThu h\u1ed3i kim lo\u1ea1i qu\u00fd t\u1eeb qu\u00e1 tr\u00ecnh \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-56 post-7141 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-laser\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/laser-welding-pulse-shaping\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7143\" alt=\"Recommended Laser Parameters for Different Metals and Applications\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Recommended-Laser-Parameters-for-Different-Metals-and-Applications-2.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tT\u1ea1o h\u00ecnh xung h\u00e0n laser\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-55 post-7158 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-duc tag-tuyen-chon tag-trang-suc\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/shrinkage-porosity-in-jewelry-casting\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7159\" alt=\"Diagram showing the influence of feeding design on shrinkage porosity\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-showing-the-influence-of-feeding-design-on-shrinkage-porosity.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tCo r\u00fat kim lo\u1ea1i trong qu\u00e1 tr\u00ecnh \u0111\u00fac trang s\u1ee9c\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-55 post-7163 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-duc\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/hard-and-soft-spots-in-jewelry\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7164\" alt=\"Image of ceramic inclusions (silica and alumina) found in jewelry\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-of-ceramic-inclusions-silica-and-alumina-found-in-jewelry.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tV\u1ebft C\u1ee9ng v\u00e0 M\u1ec1m trong Trang S\u1ee9c\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-55 post-7168 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-duc\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/gas-porosity-in-jewelry-casting\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7169\" alt=\"Image showing contaminated scrap metal used in casting processes\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Image-showing-contaminated-scrap-metal-used-in-casting-processes.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tR\u1ed7 kh\u00ed trong \u0111\u00fac trang s\u1ee9c\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-55 post-7172 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-duc\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/form-filling-theory-and-alloy-properties-in-jewelry-casting\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7173\" alt=\"Diagram illustrating the factors affecting metal flow in jewelry casting\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Diagram-illustrating-the-factors-affecting-metal-flow-in-jewelry-casting.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tL\u1ea5p \u0111\u1ea7y khu\u00f4n: L\u00fd thuy\u1ebft v\u00e0 \u0110\u1eb7c t\u00ednh H\u1ee3p kim trong \u0110\u00fac Trang S\u1ee9c\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-57 post-7176 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-xu-ly-be-mat\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/electro-polishing-for-metal-parts-process-and-key-benefits\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7177\" alt=\"Complex shaped part undergoing electro polishing with minimal wear\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Complex-shaped-part-undergoing-electro-polishing-with-minimal-wear.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tElectro Polishing cho c\u00e1c chi ti\u1ebft kim lo\u1ea1i: Quy tr\u00ecnh v\u00e0 nh\u1eefng l\u1ee3i \u00edch ch\u00ednh\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-55 post-7180 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-duc\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/discoloration-the-firestain-problem-in-sterling-silver\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7181\" alt=\"Close up image of sterling silver jewelry showing firestain discoloration\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-image-of-sterling-silver-jewelry-showing-firestain-discoloration.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tS\u1ef1 \u0111\u1ed5i m\u00e0u: V\u1ea5n \u0111\u1ec1 Firestain trong b\u1ea1c Sterling\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-55 post-7184 post type-post status-publish format-standard has-post-thumbnail hentry category-bai-viet-ve-duc\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/protech-transfer.com\/vi\/2024\/12\/02\/cracks-and-tears-in-metal-casting-causes-and-prevention\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-300x200.jpg\" class=\"attachment-medium size-medium wp-image-7186\" alt=\"Close up of metal with hot cracks due to rapid cooling\" srcset=\"https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-300x200.jpg 300w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-1024x683.jpg 1024w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling-768x512.jpg 768w, https:\/\/protech-transfer.com\/wp-content\/uploads\/2024\/11\/Close-up-of-metal-with-hot-cracks-due-to-rapid-cooling.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tN\u1ee9t v\u00e0 R\u00e1ch trong \u0110\u00fac Kim Lo\u1ea1i: Nguy\u00ean Nh\u00e2n v\u00e0 Bi\u1ec7n Ph\u00e1p Ph\u00f2ng Ng\u1eeba\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>C\u00e1c b\u00e0i vi\u1ebft chuy\u00ean m\u00f4n heree T\u1ea5t c\u1ea3 b\u00e0i vi\u1ebft B\u00e0i vi\u1ebft v\u1ec1 laser B\u00e0i vi\u1ebft v\u1ec1 laser December 2, 2024 Laser Welding Pulse Shaping Laser Welding Pulse Shaping &nbsp; Square (D\u1ea1ng S\u00f3ng Vu\u00f4ng) M\u1ed9t d\u1ea1ng s\u00f3ng ph\u1ed5 bi\u1ebfn, trong&#8230; \u0110\u1ecdc th\u00eam<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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