{"id":5144,"date":"2026-04-14T18:22:55","date_gmt":"2026-04-14T11:22:55","guid":{"rendered":"https:\/\/hadupack.com\/?p=5144"},"modified":"2026-09-23T08:28:17","modified_gmt":"2026-09-23T01:28:17","slug":"thiec-han","status":"publish","type":"post","link":"https:\/\/hadupack.com\/zh\/thiec-han\/","title":{"rendered":"Thi\u1ebfc h\u00e0n &#8211; D\u00e2y h\u00e0n &#8211; Thanh h\u00e0n &#8211; Kem h\u00e0n"},"content":{"rendered":"<p><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_51_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u6307\u6570<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6ae02a776da0a\" ><span class=\"\"><span style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6ae02a776da0a\"  type=\"checkbox\" id=\"item-6ae02a776da0a\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Thiec_han_la_gi\" title=\"Thi\u1ebfc h\u00e0n l\u00e0 g\u00ec?\">Thi\u1ebfc h\u00e0n l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Khai_niem_va_dac_diem_cot_loi_cua_thiec_han\" title=\"Kh\u00e1i ni\u1ec7m v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ed1t l\u00f5i c\u1ee7a thi\u1ebfc h\u00e0n\">Kh\u00e1i ni\u1ec7m v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ed1t l\u00f5i c\u1ee7a thi\u1ebfc h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Phan_loai_thiec_han\" title=\"Ph\u00e2n lo\u1ea1i thi\u1ebfc h\u00e0n:\">Ph\u00e2n lo\u1ea1i thi\u1ebfc h\u00e0n:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Cac_loai_thiec_han_thong_dung\" title=\"C\u00e1c lo\u1ea1i thi\u1ebfc h\u00e0n th\u00f4ng d\u1ee5ng\">C\u00e1c lo\u1ea1i thi\u1ebfc h\u00e0n th\u00f4ng d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Ung_dung_thiec_han\" title=\"\u1ee8ng d\u1ee5ng thi\u1ebfc h\u00e0n\">\u1ee8ng d\u1ee5ng thi\u1ebfc h\u00e0n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Quy_trinh_san_xuat_thiec_han\" title=\"Quy tr\u00ecnh s\u1ea3n xu\u1ea5t thi\u1ebfc h\u00e0n\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t thi\u1ebfc h\u00e0n<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#1_Quy_trinh_cot_loi_cua_san_xuat_chat_han\" title=\"1. Quy tr\u00ecnh c\u1ed1t l\u00f5i c\u1ee7a s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n\">1. Quy tr\u00ecnh c\u1ed1t l\u00f5i c\u1ee7a s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#2_Cac_loai_va_dac_diem_chinh_cua_vat_lieu_han\" title=\"2. C\u00e1c lo\u1ea1i v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a v\u1eadt li\u1ec7u h\u00e0n\">2. C\u00e1c lo\u1ea1i v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a v\u1eadt li\u1ec7u h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#3_Cac_yeu_to_chinh_trong_quy_trinh_san_xuat\" title=\"3. C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t\">3. C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Van_de_thuong_gap_khi_san_xuat_thiec_han\" title=\"V\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi s\u1ea3n xu\u1ea5t thi\u1ebfc h\u00e0n\">V\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi s\u1ea3n xu\u1ea5t thi\u1ebfc h\u00e0n<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Thanh_phan_khong_phu_hop\" title=\"Th\u00e0nh ph\u1ea7n kh\u00f4ng ph\u00f9 h\u1ee3p:\">Th\u00e0nh ph\u1ea7n kh\u00f4ng ph\u00f9 h\u1ee3p:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Tap_chat_qua_muc\" title=\"T\u1ea1p ch\u1ea5t qu\u00e1 m\u1ee9c:\">T\u1ea1p ch\u1ea5t qu\u00e1 m\u1ee9c:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Khuyet_tat_vat_ly\" title=\"Khuy\u1ebft t\u1eadt v\u1eadt l\u00fd:\">Khuy\u1ebft t\u1eadt v\u1eadt l\u00fd:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Cac_van_de_ve_tao_hinh_va_xu_ly\" title=\"C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u1ea1o h\u00ecnh v\u00e0 x\u1eed l\u00fd:\">C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u1ea1o h\u00ecnh v\u00e0 x\u1eed l\u00fd:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Cac_loi_han_pho_bien_lien_quan_SMTPCBA\" title=\"C\u00e1c l\u1ed7i h\u00e0n ph\u1ed5 bi\u1ebfn li\u00ean quan (SMT\/PCBA)\">C\u00e1c l\u1ed7i h\u00e0n ph\u1ed5 bi\u1ebfn li\u00ean quan (SMT\/PCBA)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Meo_bao_quan_thiec_han\" title=\"M\u1eb9o b\u1ea3o qu\u1ea3n thi\u1ebfc h\u00e0n\">M\u1eb9o b\u1ea3o qu\u1ea3n thi\u1ebfc h\u00e0n<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Keo_han\" title=\"Keo h\u00e0n\">Keo h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Day_han\" title=\"D\u00e2y h\u00e0n\">D\u00e2y h\u00e0n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#Luu_y_khi_su_dung_thiec_han\" title=\"L\u01b0u \u00fd khi s\u1eed d\u1ee5ng thi\u1ebfc h\u00e0n\">L\u01b0u \u00fd khi s\u1eed d\u1ee5ng thi\u1ebfc h\u00e0n<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#I_Bao_ve_an_toan_va_moi_truong_Quan_trong_nhat\" title=\"I. B\u1ea3o v\u1ec7 an to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng (Quan tr\u1ecdng nh\u1ea5t)\">I. B\u1ea3o v\u1ec7 an to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng (Quan tr\u1ecdng nh\u1ea5t)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#II_Ky_thuat_han_Van_hanh_dung_cu\" title=\"II. K\u1ef9 thu\u1eadt h\u00e0n (V\u1eadn h\u00e0nh d\u1ee5ng c\u1ee5)\">II. K\u1ef9 thu\u1eadt h\u00e0n (V\u1eadn h\u00e0nh d\u1ee5ng c\u1ee5)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/hadupack.com\/zh\/thiec-han\/#III_Bao_quan_thiec_han_va_chat_tro_han\" title=\"III. B\u1ea3o qu\u1ea3n thi\u1ebfc h\u00e0n v\u00e0 ch\u1ea5t tr\u1ee3 h\u00e0n\u00a0\">III. B\u1ea3o qu\u1ea3n thi\u1ebfc h\u00e0n v\u00e0 ch\u1ea5t tr\u1ee3 h\u00e0n\u00a0<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Thiec_han_la_gi\"><\/span><span style=\"color: #008000; font-size: 14pt;\"><em><strong>Thi\u1ebfc h\u00e0n l\u00e0 g\u00ec?<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Thi\u1ebfc h\u00e0n l\u00e0 m\u1ed9t h\u1ee3p kim c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i. Trong qu\u00e1 tr\u00ecnh h\u00e0n, n\u00f3 tan ch\u1ea3y v\u00e0 l\u1ea5p \u0111\u1ea7y \u0111\u01b0\u1eddng h\u00e0n v\u00e0 sau khi ngu\u1ed9i, n\u00f3 k\u1ebft n\u1ed1i c\u00e1c chi ti\u1ebft v\u00e0 d\u1eabn \u0111i\u1ec7n. \u0110i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a n\u00f3 ph\u1ea3i th\u1ea5p h\u01a1n \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n.<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5157\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-8.jpg\" alt=\"\" width=\"1600\" height=\"1200\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-8.jpg 1600w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-8-768x576.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-8-1536x1152.jpg 1536w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-8-400x300.jpg 400w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-8-300x225.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-size: 14pt;\">N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh c\u00e1c linh ki\u1ec7n l\u00ean b\u1ea3ng m\u1ea1ch. Thi\u1ebfc h\u00e0n \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 thi\u1ebfc h\u00e0n c\u00f3 ch\u00ec (v\u00ed d\u1ee5: Sn63-Pb37) v\u00e0 thi\u1ebfc h\u00e0n kh\u00f4ng ch\u00ec v\u00e0 c\u00e1c d\u1ea1ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m d\u00e2y h\u00e0n, b\u1ed9t h\u00e0n v\u00e0 thanh h\u00e0n.<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5149\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-1.jpg\" alt=\"\" width=\"1000\" height=\"667\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-1.jpg 1000w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-1-768x512.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-1-300x200.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-size: 14pt;\"><span style=\"color: #0000ff;\">\u25c6<\/span><em><strong>T\u00ecm hi\u1ec3u th\u00eam:<\/strong><\/em><\/span><\/p>\n<ol>\n<li><span style=\"color: #ff00ff; font-size: 14pt;\"><a style=\"color: #ff00ff;\" href=\"https:\/\/hadupack.com\/danh-muc\/vat-tu-phong-sach\/\">https:\/\/hadupack.com\/danh-muc\/vat-tu-phong-sach\/<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff; font-size: 14pt;\"><a style=\"color: #0000ff;\" href=\"https:\/\/hadupack.com\/san-pham\/quat-thoi-ion\/\">https:\/\/hadupack.com\/san-pham\/quat-thoi-ion\/<\/a><\/span><\/li>\n<li><span style=\"color: #00ccff; font-size: 14pt;\"><a style=\"color: #00ccff;\" href=\"https:\/\/hadupack.com\/san-pham\/sung-thoi-ion\/\">https:\/\/hadupack.com\/san-pham\/sung-thoi-ion\/<\/a><\/span><\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Khai_niem_va_dac_diem_cot_loi_cua_thiec_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>Kh\u00e1i ni\u1ec7m v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ed1t l\u00f5i c\u1ee7a thi\u1ebfc h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">\u0110\u1ecbnh ngh\u0129a v\u00e0 ch\u1ee9c n\u0103ng: Trong qu\u00e1 tr\u00ecnh h\u00e0n, thi\u1ebfc h\u00e0n k\u1ebft n\u1ed1i c\u00e1c v\u1eadt li\u1ec7u c\u1ee7a linh ki\u1ec7n \u0111i\u1ec7n t\u1eed b\u1eb1ng c\u00e1ch l\u00e0m tan ch\u1ea3y kim lo\u1ea1i, t\u1ea1o th\u00e0nh c\u00e1c k\u00eanh m\u1ea1ch.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">\u0110i\u1ec3m k\u1ef9 thu\u1eadt: Thi\u1ebfc h\u00e0n ph\u1ea3i c\u00f3 \u0111\u1eb7c t\u00ednh &#8220;l\u00e0m \u01b0\u1edbt&#8221; t\u1ed1t, bao ph\u1ee7 v\u00e0 li\u00ean k\u1ebft v\u1edbi v\u1eadt li\u1ec7u n\u1ec1n.<\/span><\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Phan_loai_thiec_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>Ph\u00e2n lo\u1ea1i thi\u1ebfc h\u00e0n:<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">Thi\u1ebfc h\u00e0n m\u1ec1m (H\u00e0n): \u0110i\u1ec3m n\u00f3ng ch\u1ea3y th\u01b0\u1eddng d\u01b0\u1edbi 450 \u0111\u1ed9 C, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 h\u00e0n c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Thi\u1ebfc h\u00e0n c\u1ee9ng (H\u00e0n \u0111\u1ed3ng): \u0110i\u1ec3m n\u00f3ng ch\u1ea3y cao h\u01a1n (&gt; 450 \u0111\u1ed9 C), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u c\u1ea5u tr\u00fac ch\u1eafc ch\u1eafn h\u01a1n.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Th\u00e0nh ph\u1ea7n ch\u00ednh: Theo truy\u1ec1n th\u1ed1ng, n\u00f3 l\u00e0 h\u1ee3p kim thi\u1ebfc-ch\u00ec ( Sn63 &#8211; Pb37) (v\u00ed d\u1ee5: \u0111i\u1ec3m n\u00f3ng ch\u1ea3y 183 \u0111\u1ed9 C). \u0110\u1ec3 tu\u00e2n th\u1ee7 ch\u1ec9 th\u1ecb RoHS c\u1ee7a EU, h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i thi\u1ebfc h\u00e0n hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u kh\u00f4ng ch\u1ee9a ch\u00ec.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5155\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-6.jpg\" alt=\"\" width=\"720\" height=\"556\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-6.jpg 720w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-6-300x232.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Cac_loai_thiec_han_thong_dung\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>C\u00e1c lo\u1ea1i thi\u1ebfc h\u00e0n th\u00f4ng d\u1ee5ng<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">D\u00e2y h\u00e0n: C\u1ea5u tr\u00fac d\u1ea1ng d\u00e2y, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 h\u00e0n th\u1ee7 c\u00f4ng.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Kem h\u00e0n: Thi\u1ebfc h\u00e0n d\u1ea1ng b\u1ed9t tr\u1ed9n v\u1edbi ch\u1ea5t tr\u1ee3 h\u00e0n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong SMT (C\u00f4ng ngh\u1ec7 g\u1eafn b\u1ec1 m\u1eb7t).<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Thanh h\u00e0n: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u00e0n s\u00f3ng ho\u1eb7c h\u00e0n nh\u00fang.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5160\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-3.jpg\" alt=\"\" width=\"612\" height=\"612\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-3.jpg 612w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-3-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-3-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-3-150x150.jpg 150w\" sizes=\"auto, (max-width: 612px) 100vw, 612px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Ung_dung_thiec_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>\u1ee8ng d\u1ee5ng thi\u1ebfc h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">S\u1ea3n xu\u1ea5t \u0111i\u1ec7n t\u1eed: \u0110\u00f3ng g\u00f3i v\u00e0 k\u1ebft n\u1ed1i linh ki\u1ec7n b\u1ea3ng m\u1ea1ch in (PCB).<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Gia c\u00f4ng kim lo\u1ea1i: H\u00e0n c\u00e1c b\u1ed9 ph\u1eadn v\u00e0 \u1ed1ng ch\u00ednh x\u00e1c.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5150\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-2.jpg\" alt=\"\" width=\"880\" height=\"383\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-2.jpg 880w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-2-768x334.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-2-300x131.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Quy_trinh_san_xuat_thiec_han\"><\/span><span style=\"color: #008000; font-size: 14pt;\"><em><strong>Quy tr\u00ecnh s\u1ea3n xu\u1ea5t thi\u1ebfc h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">C\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n ch\u1ee7 y\u1ebfu bao g\u1ed3m n\u1ea5u ch\u1ea3y nguy\u00ean li\u1ec7u th\u00f4, h\u1ee3p kim h\u00f3a, t\u1ea1o h\u00ecnh (nh\u01b0 nghi\u1ec1n th\u00e0nh b\u1ed9t, \u00e9p \u0111\u00f9n th\u00e0nh d\u00e2y ho\u1eb7c t\u1ea1o h\u00ecnh s\u01a1 b\u1ed9) v\u00e0 ki\u1ec3m tra, nh\u1eb1m m\u1ee5c \u0111\u00edch s\u1ea3n xu\u1ea5t c\u00e1c h\u1ee3p kim g\u1ed1c thi\u1ebfc (Sn-Ag-Cu, Sn-Pb, v.v.) c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao v\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c. C\u00e1c v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00f4ng ngh\u1ec7 h\u00e0n m\u1ec1m cho bao b\u00ec \u0111i\u1ec7n t\u1eed.<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5156\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-7.jpg\" alt=\"\" width=\"941\" height=\"1200\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-7.jpg 941w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-7-768x979.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-7-300x383.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"1_Quy_trinh_cot_loi_cua_san_xuat_chat_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>1. Quy tr\u00ecnh c\u1ed1t l\u00f5i c\u1ee7a s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">Chu\u1ea9n b\u1ecb v\u00e0 n\u1ea5u ch\u1ea3y nguy\u00ean li\u1ec7u th\u00f4: Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, thi\u1ebfc, b\u1ea1c, \u0111\u1ed3ng, bismuth v\u00e0 c\u00e1c nguy\u00ean li\u1ec7u kim lo\u1ea1i kh\u00e1c \u0111\u01b0\u1ee3c \u0111\u1ecbnh l\u01b0\u1ee3ng ch\u00ednh x\u00e1c v\u00e0 n\u1ea5u ch\u1ea3y trong l\u00f2.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">H\u1ee3p kim h\u00f3a v\u00e0 tinh ch\u1ebf: \u0110\u1ea3m b\u1ea3o th\u00e0nh ph\u1ea7n \u0111\u1ed3ng nh\u1ea5t \u1edf tr\u1ea1ng th\u00e1i n\u00f3ng ch\u1ea3y v\u00e0 th\u1ef1c hi\u1ec7n tinh ch\u1ebf \u0111\u1ec3 lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Nghi\u1ec1n th\u00e0nh b\u1ed9t (\u0111\u1ed1i v\u1edbi ch\u1ea5t h\u00e0n d\u1ea1ng s\u1ec7t): S\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 phun s\u01b0\u01a1ng, h\u1ee3p kim l\u1ecfng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1ed9t si\u00eau m\u1ecbn h\u00ecnh c\u1ea7u.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">\u00c9p \u0111\u00f9n v\u00e0 k\u00e9o d\u00e2y (\u0111\u1ed1i v\u1edbi d\u00e2y h\u00e0n): H\u1ee3p kim th\u1ecfi \u0111\u01b0\u1ee3c nung n\u00f3ng v\u00e0 \u00e9p \u0111\u00f9n th\u00e0nh c\u00e1c thanh th\u00f4, sau \u0111\u00f3 \u0111\u01b0\u1ee3c k\u00e9o li\u00ean t\u1ee5c th\u00e0nh d\u00e2y h\u00e0n m\u1ecbn.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">V\u1eadt li\u1ec7u h\u00e0n \u0111\u1ecbnh h\u00ecnh: V\u1eadt li\u1ec7u h\u00e0n \u0111\u01b0\u1ee3c gia c\u00f4ng th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng c\u1ee5 th\u1ec3 (t\u1ea5m, v\u00f2ng, v.v.) \u0111\u1ec3 cung c\u1ea5p li\u1ec1u l\u01b0\u1ee3ng h\u00e0n ch\u00ednh x\u00e1c.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Th\u00eam Florua: Nh\u1ef1a ho\u1eb7c ch\u1ea5t tr\u1ee3 dung h\u00f3a h\u1ecdc th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u00eam v\u00e0o d\u00e2y h\u00e0n \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng th\u1ea5m \u01b0\u1edbt.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5158\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1.jpg\" alt=\"\" width=\"1920\" height=\"1920\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1.jpg 1920w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1-768x768.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1-1536x1536.jpg 1536w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-1-150x150.jpg 150w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"2_Cac_loai_va_dac_diem_chinh_cua_vat_lieu_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>2. C\u00e1c lo\u1ea1i v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a v\u1eadt li\u1ec7u h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">V\u1eadt li\u1ec7u h\u00e0n c\u00f3 ch\u00ec (Sn-Pb): T\u1ef7 l\u1ec7 ph\u1ed5 bi\u1ebfn l\u00e0 Sn63Pb37 (v\u1eadt li\u1ec7u h\u00e0n eutectic), \u0111i\u1ec3m n\u00f3ng ch\u1ea3y l\u00e0 183 \u0111\u1ed9 C, kh\u1ea3 n\u0103ng gia c\u00f4ng t\u1ed1t nh\u01b0ng \u0111\u1ed9c h\u1ea1i.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">V\u1eadt li\u1ec7u h\u00e0n kh\u00f4ng ch\u00ec: \u0110\u1ec3 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh RoHS, c\u00e1c h\u1ee3p kim th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m d\u00f2ng Sn-Ag-Cu (SAC), v\u1edbi \u0111i\u1ec3m n\u00f3ng ch\u1ea3y cao h\u01a1n (kho\u1ea3ng 217 \u0111\u1ed9 C &#8211; 220 \u0111\u1ed9 C), \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t quy tr\u00ecnh nghi\u00eam ng\u1eb7t h\u01a1n.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5159\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-2.jpg\" alt=\"\" width=\"1080\" height=\"1080\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-2.jpg 1080w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-2-768x768.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-2-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-2-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-2-150x150.jpg 150w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"3_Cac_yeu_to_chinh_trong_quy_trinh_san_xuat\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>3. C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">T\u1ef7 l\u1ec7 th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c: \u0110\u1ea3m b\u1ea3o \u0111i\u1ec3m n\u00f3ng ch\u1ea3y v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Ki\u1ec3m so\u00e1t t\u1ea1p ch\u1ea5t: Ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t kim lo\u1ea1i \u0111\u1ec3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t (b\u1ed9t h\u00e0n): Ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a b\u1ed9t h\u00e0n cho c\u00e1c quy tr\u00ecnh in kh\u00e1c nhau.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5151\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-3.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-3.jpg 800w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-3-768x768.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-3-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-3-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-3-150x150.jpg 150w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Van_de_thuong_gap_khi_san_xuat_thiec_han\"><\/span><span style=\"color: #008000; font-size: 14pt;\"><em><strong>V\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi s\u1ea3n xu\u1ea5t thi\u1ebfc h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p trong s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n ch\u1ee7 y\u1ebfu x\u1ea3y ra trong giai \u0111o\u1ea1n n\u1ea5u ch\u1ea3y v\u00e0 t\u1ea1o h\u00ecnh. Ch\u00fang bao g\u1ed3m kh\u1ea3 n\u0103ng th\u1ea5m \u01b0\u1edbt k\u00e9m do th\u00e0nh ph\u1ea7n kim lo\u1ea1i kh\u00f4ng \u0111\u00fang v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t c\u00f3 h\u1ea1i qu\u00e1 cao (nh\u01b0 s\u1eaft v\u00e0 \u0111\u1ed3ng) \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ed1i h\u00e0n, v\u00e0 \u0111\u1ed9 r\u1ed7, m\u1ed1i h\u00e0n ngu\u1ed9i, v\u00e0 t\u1ea1p ch\u1ea5t oxit sinh ra trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, t\u00ednh ch\u1ea5t \u0111i\u1ec7n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 ngo\u00e0i c\u1ee7a m\u1ed1i h\u00e0n. V\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p trong s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n:<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5161\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-1.jpg\" alt=\"\" width=\"720\" height=\"659\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-1.jpg 720w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-1-300x275.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Thanh_phan_khong_phu_hop\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>Th\u00e0nh ph\u1ea7n kh\u00f4ng ph\u00f9 h\u1ee3p:<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">H\u00e0m l\u01b0\u1ee3ng thi\u1ebfc kh\u00f4ng \u0111\u00fang trong ch\u1ea5t h\u00e0n kh\u00f4ng ch\u00ec: Th\u00e0nh ph\u1ea7n c\u1ee7a ch\u1ea5t h\u00e0n kh\u00f4ng ch\u00ec (nh\u01b0 SAC305) c\u1ef1c k\u1ef3 nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t \u0111\u1ed9. Th\u00e0nh ph\u1ea7n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u0111i\u1ec3m n\u00f3ng ch\u1ea3y t\u0103ng ho\u1eb7c kh\u1ea3 n\u0103ng th\u1ea5m \u01b0\u1edbt k\u00e9m.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Nhi\u1ec5m ch\u00ec: Nhi\u1ec5m ch\u00ec trong d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ch\u1ea5t h\u00e0n kh\u00f4ng ch\u00ec c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam tr\u1ecdng (vi ph\u1ea1m RoHS).<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5170\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-002.jpg\" alt=\"\" width=\"1200\" height=\"1200\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-002.jpg 1200w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-002-768x768.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-002-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-002-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-002-150x150.jpg 150w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Tap_chat_qua_muc\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>T\u1ea1p ch\u1ea5t qu\u00e1 m\u1ee9c:<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">Nhi\u1ec5m s\u1eaft (Fe) v\u00e0 \u0111\u1ed3ng (Cu): S\u1eaft v\u00e0 \u0111\u1ed3ng h\u00f2a tan t\u1eeb n\u1ed3i n\u1ea5u ho\u1eb7c d\u1ee5ng c\u1ee5 trong qu\u00e1 tr\u00ecnh n\u1ea5u ch\u1ea3y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 gi\u00f2n c\u1ee7a ch\u1ea5t h\u00e0n, h\u00ecnh th\u00e0nh c\u00e1c tinh th\u1ec3 b\u0103ng v\u00e0 b\u1ec1 m\u1eb7t m\u1ed1i h\u00e0n th\u00f4 r\u00e1p.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">T\u1ea1p ch\u1ea5t oxit: Khi ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed \u1edf tr\u1ea1ng th\u00e1i n\u00f3ng ch\u1ea3y, oxit thi\u1ebfc d\u1ec5 d\u00e0ng h\u00ecnh th\u00e0nh, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u1ea3y v\u00e0 \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a ch\u1ea5t h\u00e0n.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5162\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-2.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-2.jpg 800w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-2-768x768.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-2-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-2-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-2-150x150.jpg 150w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Khuyet_tat_vat_ly\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>Khuy\u1ebft t\u1eadt v\u1eadt l\u00fd:<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">\u0110\u1ed9 r\u1ed7\/L\u1ed7 kim: Ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 l\u00e0m ngu\u1ed9i kh\u00f4ng \u0111\u00fang c\u00e1ch sau khi n\u00f3ng ch\u1ea3y, ho\u1eb7c s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c ch\u1ea5t d\u1ec5 bay h\u01a1i trong ch\u00ednh ch\u1ea5t h\u00e0n, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u0111\u1ed9 r\u1ed7 b\u00ean trong thanh h\u00e0n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ea5u tr\u00fac.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">T\u1ea1p ch\u1ea5t: Lo\u1ea1i b\u1ecf kh\u00f4ng ho\u00e0n to\u00e0n c\u1eb7n oxit sau khi n\u00f3ng ch\u1ea3y, tr\u1ef1c ti\u1ebfp l\u1eafng \u0111\u1ecdng v\u00e0o thanh h\u00e0n, g\u00e2y ra c\u00e1c m\u1ed1i h\u00e0n ngu\u1ed9i trong qu\u00e1 tr\u00ecnh h\u00e0n.<\/span><\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Cac_van_de_ve_tao_hinh_va_xu_ly\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u1ea1o h\u00ecnh v\u00e0 x\u1eed l\u00fd:<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">H\u00ecnh th\u1ee9c thanh h\u00e0n k\u00e9m: B\u1ec1 m\u1eb7t b\u1ecb s\u1eabm m\u00e0u, b\u1ecb oxy h\u00f3a, ph\u00e2n t\u00e1ch nghi\u00eam tr\u1ecdng, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 tin t\u01b0\u1edfng c\u1ee7a kh\u00e1ch h\u00e0ng.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Sai s\u1ed1 v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc: \u0110\u01b0\u1eddng k\u00ednh\/k\u00edch th\u01b0\u1edbc d\u00e2y h\u00e0n ho\u1eb7c thanh h\u00e0n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c c\u1ea5p li\u1ec7u trong s\u1ea3n xu\u1ea5t t\u1ef1 \u0111\u1ed9ng.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5163\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-01.jpg\" alt=\"\" width=\"750\" height=\"246\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-01.jpg 750w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-01-300x98.jpg 300w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Cac_loi_han_pho_bien_lien_quan_SMTPCBA\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>C\u00e1c l\u1ed7i h\u00e0n ph\u1ed5 bi\u1ebfn li\u00ean quan (SMT\/PCBA)<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng ch\u1ea5t h\u00e0n bao g\u1ed3m:<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">N\u1ed1i li\u1ec1n: Hai m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau, th\u01b0\u1eddng do l\u01b0\u1ee3ng ch\u1ea5t h\u00e0n qu\u00e1 nhi\u1ec1u. Hi\u1ec7n t\u01b0\u1ee3ng &#8220;m\u1ed1i h\u00e0n b\u1ecb nh\u1ea5c l\u00ean&#8221; (Tombstoning): L\u1ef1c l\u00e0m \u01b0\u1edbt kh\u00f4ng \u0111\u1ec1u \u1edf c\u1ea3 hai \u0111\u1ea7u c\u1ee7a linh ki\u1ec7n khi\u1ebfn m\u1ed9t \u0111\u1ea7u b\u1ecb nh\u1ea5c l\u00ean.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">M\u1ed1i h\u00e0n ngu\u1ed9i (Cold Joint): Thi\u1ebfc h\u00e0n di chuy\u1ec3n tr\u01b0\u1edbc khi tan ch\u1ea3y ho\u1eb7c ngu\u1ed9i ho\u00e0n to\u00e0n, d\u1eabn \u0111\u1ebfn c\u1ea5u tr\u00fac m\u1ed1i h\u00e0n y\u1ebfu.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5152\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-4.jpg\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-4.jpg 800w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-4-768x432.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-4-300x169.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Meo_bao_quan_thiec_han\"><\/span><span style=\"color: #008000; font-size: 14pt;\"><em><strong>M\u1eb9o b\u1ea3o qu\u1ea3n thi\u1ebfc h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Keo h\u00e0n ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n trong t\u1ee7 l\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 0-10\u00b0C, \u0111\u1eady k\u00edn \u0111\u1ec3 tr\u00e1nh oxy h\u00f3a v\u00e0 h\u01b0 h\u1ecfng. Tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng, h\u00e3y \u0111\u1ec3 keo \u1ea5m l\u00ean \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 tr\u00e1nh l\u1eadt ng\u01b0\u1ee3c c\u00e1c chai keo h\u00e0n c\u00f3 \u0111\u1ea7u nh\u1ecdn. D\u00e2y h\u00e0n n\u00ean \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n \u1edf n\u01a1i kh\u00f4 r\u00e1o, nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, tr\u00e1nh nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 \u1ea9m. Nh\u1eefng \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd khi b\u1ea3o qu\u1ea3n:<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5169\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001.jpg\" alt=\"\" width=\"1600\" height=\"1600\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001.jpg 1600w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001-768x768.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001-1536x1536.jpg 1536w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001-100x100.jpg 100w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001-300x300.jpg 300w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-001-150x150.jpg 150w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Keo_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>Keo h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">Nhi\u1ec7t \u0111\u1ed9: Nhi\u1ec7t \u0111\u1ed9 b\u1ea3o qu\u1ea3n l\u1ea1nh l\u00e0 0 \u0111\u1ed9 C &#8211; 10 \u0111\u1ed9 C, kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00f4ng \u0111\u00e1 (tr\u1eeb khi \u0111\u01b0\u1ee3c cho ph\u00e9p r\u00f5 r\u00e0ng trong h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng s\u1ea3n ph\u1ea9m).<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">M\u00f4i tr\u01b0\u1eddng: \u0110\u1eady k\u00edn v\u00e0 b\u1ea3o qu\u1ea3n n\u01a1i kh\u00f4 r\u00e1o, tho\u00e1ng m\u00e1t.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">L\u00e0m \u1ea5m: \u0110\u1ec3 keo \u1ea5m l\u00ean \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng trong 2-4 gi\u1edd tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00e1nh ng\u01b0ng t\u1ee5 h\u01a1i n\u01b0\u1edbc.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">C\u00e1ch b\u1ea3o qu\u1ea3n: \u0110\u1ed1i v\u1edbi \u1ed1ng ti\u00eam ho\u1eb7c chai keo h\u00e0n, n\u00ean b\u1ea3o qu\u1ea3n v\u1edbi \u0111\u1ea7u nh\u1ecdn h\u01b0\u1edbng xu\u1ed1ng d\u01b0\u1edbi.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng: Th\u00f4ng th\u01b0\u1eddng, th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng l\u00e0 6 th\u00e1ng khi \u0111\u01b0\u1ee3c \u0111\u1eady k\u00edn v\u00e0 b\u1ea3o qu\u1ea3n l\u1ea1nh. S\u1eed d\u1ee5ng trong v\u00f2ng 24 gi\u1edd sau khi m\u1edf.<\/span><\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Day_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>D\u00e2y h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">M\u00f4i tr\u01b0\u1eddng: B\u1ea3o qu\u1ea3n n\u01a1i kh\u00f4 r\u00e1o, tho\u00e1ng kh\u00ed v\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Tr\u00e1nh: Nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh oxy h\u00f3a. Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba: Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 t\u1ee7 l\u1ea1nh th\u01b0\u1eddng xuy\u00ean.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-size: 14pt;\">N\u1ebfu ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p d\u01b0\u1edbi -13,2 \u0111\u1ed9 C trong th\u1eddi gian d\u00e0i, ch\u1ea5t h\u00e0n c\u00f3 th\u1ec3 bi\u1ebfn th\u00e0nh b\u1ed9t h\u00e0n m\u00e0u x\u00e1m. \u0110\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng b\u1ea3o qu\u1ea3n.<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5154\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-5.jpg\" alt=\"\" width=\"900\" height=\"600\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-5.jpg 900w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-5-768x512.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-5-300x200.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Luu_y_khi_su_dung_thiec_han\"><\/span><span style=\"color: #008000; font-size: 14pt;\"><em><strong>L\u01b0u \u00fd khi s\u1eed d\u1ee5ng thi\u1ebfc h\u00e0n<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">An to\u00e0n c\u0169ng quan tr\u1ecdng nh\u01b0 k\u1ef9 thu\u1eadt khi s\u1eed d\u1ee5ng ch\u1ea5t h\u00e0n. Lu\u00f4n \u0111eo k\u00ednh b\u1ea3o h\u1ed9 v\u00e0 g\u0103ng tay, \u0111\u1ed3ng th\u1eddi s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb h\u00fat kh\u00f3i \u0111\u1ec3 tr\u00e1nh h\u00edt ph\u1ea3i kh\u00f3i \u0111\u1ed9c. K\u1ef9 thu\u1eadt h\u00e0n c\u1ea7n tu\u00e2n theo c\u00e1c b\u01b0\u1edbc &#8220;l\u00e0m n\u00f3ng tr\u01b0\u1edbc &#8211; c\u1ea5p ch\u1ea5t h\u00e0n &#8211; l\u1ea5y ch\u1ea5t h\u00e0n ra &#8211; l\u00e0m ngu\u1ed9i&#8221; \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n ho\u00e0n ch\u1ec9nh. \u0110\u1ed3ng th\u1eddi, n\u00ean \u0111\u1eb7t nhi\u1ec7t \u0111\u1ed9 d\u1ee5ng c\u1ee5 h\u00e0n \u1edf m\u1ee9c kho\u1ea3ng 300 \u0111\u1ed9 C (c\u1ea7n ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c h\u01a1n \u0111\u1ed1i v\u1edbi ch\u1ea5t h\u00e0n kh\u00f4ng ch\u00ec) \u0111\u1ec3 gi\u1ea3m qu\u00e1 tr\u00ecnh oxy h\u00f3a. C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba chi ti\u1ebft khi s\u1eed d\u1ee5ng nh\u01b0 sau:<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5164\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-02.jpg\" alt=\"\" width=\"1388\" height=\"1180\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-02.jpg 1388w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-02-768x653.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han-02-300x255.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"I_Bao_ve_an_toan_va_moi_truong_Quan_trong_nhat\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>I. B\u1ea3o v\u1ec7 an to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng (Quan tr\u1ecdng nh\u1ea5t)<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">B\u1ea3o v\u1ec7 c\u00e1 nh\u00e2n: H\u00e0n t\u1ea1o ra kh\u00f3i \u0111\u1ed9c ch\u1ee9a c\u00e1c kim lo\u1ea1i n\u1eb7ng nh\u01b0 ch\u00ec v\u00e0 cadmium. Lu\u00f4n \u0111eo kh\u1ea9u trang, k\u00ednh b\u1ea3o h\u1ed9 v\u00e0 g\u0103ng tay.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Th\u00f4ng gi\u00f3 m\u00f4i tr\u01b0\u1eddng: Khu v\u1ef1c h\u00e0n c\u1ea7n c\u00f3 thi\u1ebft b\u1ecb h\u00fat kh\u00f3i chuy\u00ean nghi\u1ec7p; kh\u00f4ng bao gi\u1edd l\u00e0m vi\u1ec7c trong kh\u00f4ng gian k\u00edn.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y: \u0110\u1ea3m b\u1ea3o khu v\u1ef1c l\u00e0m vi\u1ec7c s\u1ea1ch s\u1ebd v\u00e0 \u0111\u1eb7t th\u1ea3m ch\u1ed1ng ch\u00e1y \u0111\u1ec3 ng\u0103n tia l\u1eeda h\u00e0n b\u1eafn ra.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Th\u00f3i quen v\u1ec7 sinh: R\u1eeda tay k\u1ef9 sau khi l\u00e0m vi\u1ec7c; nghi\u00eam c\u1ea5m \u0103n u\u1ed1ng trong m\u00f4i tr\u01b0\u1eddng h\u00e0n.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5166\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-3.jpg\" alt=\"\" width=\"800\" height=\"534\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-3.jpg 800w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-3-768x513.jpg 768w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thanh-han-3-300x200.jpg 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"II_Ky_thuat_han_Van_hanh_dung_cu\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>II. K\u1ef9 thu\u1eadt h\u00e0n (V\u1eadn h\u00e0nh d\u1ee5ng c\u1ee5)<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9: Nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00e1 cao. Thi\u1ebfc h\u00e0n g\u1ed1c ch\u00ec c\u00f3 nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 250 \u0111\u1ed9 C &#8211; 300 \u0111\u1ed9 C trong khi thi\u1ebfc h\u00e0n kh\u00f4ng ch\u00ec th\u01b0\u1eddng y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i nhi\u1ec7t t\u1ed1t, th\u01b0\u1eddng tr\u00ean 300 \u0111\u1ed9 C<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">B\u1ed1n b\u01b0\u1edbc h\u00e0n: L\u00e0m n\u00f3ng s\u01a1 b\u1ed9 (\u0111\u1ea7u m\u1ecf h\u00e0n ti\u1ebfp x\u00fac v\u1edbi \u0111i\u1ec3m h\u00e0n v\u00e0 ch\u00ec), \u0111\u1eb7t thi\u1ebfc h\u00e0n (thi\u1ebfc h\u00e0n ti\u1ebfp x\u00fac v\u1edbi v\u00f9ng n\u00f3ng), th\u00e1o (th\u00e1o d\u00e2y h\u00e0n), l\u00e0m ngu\u1ed9i (l\u00e0m c\u1ee9ng m\u1ed1i h\u00e0n).<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Ng\u0103n ng\u1eeba oxy h\u00f3a: Tr\u00e1nh ti\u1ebfp x\u00fac l\u00e2u v\u1edbi 400 \u0111\u1ed9 C \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh oxy h\u00f3a nhanh \u0111\u1ea7u m\u1ecf h\u00e0n v\u00e0 \u0111\u1ed9 b\u00e1m d\u00ednh thi\u1ebfc k\u00e9m.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Tr\u00e1nh h\u00e0n ngu\u1ed9i: \u0110\u1ea3m b\u1ea3o c\u00e1c linh ki\u1ec7n \u0111\u01b0\u1ee3c ph\u1ee7 k\u00edn ho\u00e0n to\u00e0n b\u1eb1ng thi\u1ebfc h\u00e0n \u0111\u1ec3 tr\u00e1nh b\u1ec1 m\u1eb7t b\u1ecb s\u1ea7n s\u00f9i ho\u1eb7c m\u1ed1i h\u00e0n kh\u00f4ng ho\u00e0n ch\u1ec9nh.<\/span><\/li>\n<\/ol>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\"><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5168\" src=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-04.jpg\" alt=\"\" width=\"750\" height=\"800\" srcset=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-04.jpg 750w, https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/kem-han-04-300x320.jpg 300w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"III_Bao_quan_thiec_han_va_chat_tro_han\"><\/span><span style=\"color: #ff0000; font-size: 14pt;\"><em><strong>III. B\u1ea3o qu\u1ea3n thi\u1ebfc h\u00e0n v\u00e0 ch\u1ea5t tr\u1ee3 h\u00e0n\u00a0<\/strong><\/em><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><span style=\"font-size: 14pt;\">Ki\u1ec3m so\u00e1t m\u00f4i tr\u01b0\u1eddng: N\u00ean b\u1ea3o qu\u1ea3n kem h\u00e0n trong t\u1ee7 l\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 2 \u0111\u1ed9 C \u0111\u1ebfn 5 \u0111\u1ed9 C. C\u1ea7n l\u00e0m \u1ea5m kem h\u00e0n \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng \u00edt nh\u1ea5t 4 gi\u1edd tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">Lo\u1ea1i ki\u1ec3m tra: Ch\u1ecdn v\u1eadt li\u1ec7u h\u00e0n \u0111\u1ea1t ti\u00eau chu\u1ea9n (c\u00f3 ch\u00ec ho\u1eb7c kh\u00f4ng ch\u00ec) theo y\u00eau c\u1ea7u h\u00e0n.<\/span><\/li>\n<\/ol>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Thi\u1ebfc h\u00e0n l\u00e0 g\u00ec? Thi\u1ebfc h\u00e0n l\u00e0 m\u1ed9t h\u1ee3p kim c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i. Trong qu\u00e1 tr\u00ecnh h\u00e0n, n\u00f3 tan ch\u1ea3y v\u00e0 l\u1ea5p \u0111\u1ea7y \u0111\u01b0\u1eddng h\u00e0n v\u00e0 sau khi ngu\u1ed9i, n\u00f3 k\u1ebft n\u1ed1i c\u00e1c chi ti\u1ebft v\u00e0 d\u1eabn \u0111i\u1ec7n. \u0110i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a n\u00f3 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/hadupack.com\/zh\/thiec-han\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201cThi\u1ebfc h\u00e0n &#8211; D\u00e2y h\u00e0n &#8211; Thanh h\u00e0n &#8211; Kem h\u00e0n\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":5172,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-5144","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.10 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Thi\u1ebfc h\u00e0n - D\u00e2y h\u00e0n - Thanh h\u00e0n - Kem h\u00e0n - BINA VI\u1ec6T NAM<\/title>\n<meta name=\"description\" content=\"Thi\u1ebfc h\u00e0n l\u00e0 g\u00ec? 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Thi\u1ebfc h\u00e0n l\u00e0 m\u1ed9t h\u1ee3p kim c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hadupack.com\/zh\/thiec-han\/\" \/>\n<meta property=\"og:site_name\" content=\"BINA VI\u1ec6T NAM\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-14T11:22:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-23T01:28:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hadupack.com\/wp-content\/uploads\/2026\/04\/thiec-han.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"687\" \/>\n\t<meta property=\"og:image:height\" content=\"687\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u00c2u V\u01b0\u01a1ng L\u1ec5\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:description\" content=\"Thi\u1ebfc h\u00e0n l\u00e0 g\u00ec? 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