{"id":2406,"date":"2026-08-05T12:33:41","date_gmt":"2026-08-05T05:33:41","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/"},"modified":"2026-08-06T00:35:19","modified_gmt":"2026-08-05T17:35:19","slug":"phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/","title":{"rendered":"Ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng Inox: h\u01b0\u1edbng d\u1eabn k\u1ef9 s\u01b0 A\u2013Z"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2406&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0110\u00e1nh gi\u00e1&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng Inox: h\u01b0\u1edbng d\u1eabn k\u1ef9 s\u01b0 A\u2013Z&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">\u0110\u00e1nh gi\u00e1<\/span>\n    <\/div>\n    <\/div>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/phan-biet-inox-bang-mat-nhan-biet-qua-do-bong-mau-be-mat-chuan-ky-su\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ph\u00e2n bi\u1ec7t inox b\u1eb1ng m\u1eaft: nh\u1eadn bi\u1ebft qua \u0111\u1ed9 b\u00f3ng, m\u00e0u, b\u1ec1 m\u1eb7t chu\u1ea9n k\u1ef9 s\u01b0<\/a><\/p>\n<\/p><\/div>\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2406&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0110\u00e1nh gi\u00e1&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng Inox: h\u01b0\u1edbng d\u1eabn k\u1ef9 s\u01b0 A\u2013Z&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'><\/p>\n<div class=\"kksr-stars\">\n<div class=\"kksr-stars-inactive\">\n<div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n<div class=\"kksr-star\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<div class=\"kksr-star\" style=\"padding-right: 5px\">\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">\u0110\u00e1nh gi\u00e1<\/span>\n    <\/div>\n<\/p><\/div>\n<div class=\"custom-toc\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\" style=\"cursor:inherit\">Table of Contents<\/p>\n<p><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\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" 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><\/span><\/a><\/span><\/div>\n<nav>\n<ul class='ez-toc-list ez-toc-list-level-1 ' >\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Noi_dung_chinh\" >N\u1ed9i dung ch\u00ednh<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Toan_tap_phan_biet_va_kiem_dinh_Inox_cho_ky_su_tho_va_chu_xuong\" >To\u00e0n t\u1eadp ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh Inox cho k\u1ef9 s\u01b0, th\u1ee3 v\u00e0 ch\u1ee7 x\u01b0\u1edfng<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Buc_tranh_nen_tang_Inox_la_gi_vi_sao_phai_kiem_dinh\" >B\u1ee9c tranh n\u1ec1n t\u1ea3ng: Inox l\u00e0 g\u00ec, v\u00ec sao ph\u1ea3i ki\u1ec3m \u0111\u1ecbnh?<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Nhung_khia_canh_cot_loi_can_nam_truoc_khi_thu_nghiem\" >Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i c\u1ea7n n\u1eafm tr\u01b0\u1edbc khi th\u1eed nghi\u1ec7m<\/a>\n<ul class='ez-toc-list-level-3' >\n<li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#1_Thanh_phan_hoa_hoc_va_anh_huong_den_tinh_nang\" >1) Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh n\u0103ng<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#2_Tu_tinh_khong_phai_%E2%80%9Cthuoc_do_tuyet_doi%E2%80%9D\" >2) T\u1eeb t\u00ednh kh\u00f4ng ph\u1ea3i \u201cth\u01b0\u1edbc \u0111o tuy\u1ec7t \u0111\u1ed1i\u201d<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#3_Be_mat_%E2%80%93_ky_hieu_hoan_thien_va_khiem_khuyet\" >3) B\u1ec1 m\u1eb7t \u2013 k\u00fd hi\u1ec7u ho\u00e0n thi\u1ec7n v\u00e0 khi\u1ebfm khuy\u1ebft<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#4_Tai_lieu_va_truy_xuat_nguon_goc\" >4) T\u00e0i li\u1ec7u v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#5_Phuong_phap_thu_ket_hop_nhieu_lop\" >5) Ph\u01b0\u01a1ng ph\u00e1p th\u1eed: k\u1ebft h\u1ee3p nhi\u1ec1u l\u1edbp<\/a><\/li>\n<\/ul>\n<\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Dao_sau_theo_chu_de_quy_trinh_meo_nghe_va_canh_bao\" >\u0110\u00e0o s\u00e2u theo ch\u1ee7 \u0111\u1ec1: quy tr\u00ecnh, m\u1eb9o ngh\u1ec1 v\u00e0 c\u1ea3nh b\u00e1o<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Ung_dung_thuc_te_va_khuyen_nghi_tu_chuyen_gia\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb t\u1eeb chuy\u00ean gia<\/a><\/li>\n<li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/inoxcuongthinh.com\/phan-biet-va-kiem-dinh-chat-luong-inox-huong-dan-ky-su-a-z\/#Ket_luan_va_buoc_tiep_theo\" >K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/a><\/li>\n<\/ul>\n<\/nav>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Noi_dung_chinh\"><\/span><span class=\"ez-toc-section\" id=\"Noi_dung_chinh\"><\/span>N\u1ed9i dung ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"#toc-0-toan-tap-phan-biet-va-kiem-dinh-inox-cho-ky-su-tho\">To\u00e0n t\u1eadp ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh Inox cho k\u1ef9 s\u01b0, th\u1ee3 v\u00e0 ch\u1ee7 x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-1-buc-tranh-nen-tang-inox-la-gi-vi-sao-phai-kiem-din\">B\u1ee9c tranh n\u1ec1n t\u1ea3ng: Inox l\u00e0 g\u00ec, v\u00ec sao ph\u1ea3i ki\u1ec3m \u0111\u1ecbnh?<\/a><\/li>\n<li><a href=\"#toc-2-nhung-khia-canh-cot-loi-can-nam-truoc-khi-thu-nghi\">Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i c\u1ea7n n\u1eafm tr\u01b0\u1edbc khi th\u1eed nghi\u1ec7m<\/a><\/li>\n<li><a href=\"#toc-3-dao-sau-theo-chu-de-quy-trinh-meo-nghe-va-canh-bao\">\u0110\u00e0o s\u00e2u theo ch\u1ee7 \u0111\u1ec1: quy tr\u00ecnh, m\u1eb9o ngh\u1ec1 v\u00e0 c\u1ea3nh b\u00e1o<\/a><\/li>\n<li><a href=\"#toc-4-ung-dung-thuc-te-va-khuyen-nghi-tu-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb t\u1eeb chuy\u00ean gia<\/a><\/li>\n<li><a href=\"#toc-5-ket-luan-va-buoc-tiep-theo\">K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"toc-0-toan-tap-phan-biet-va-kiem-dinh-inox-cho-ky-su-tho\"><span class=\"ez-toc-section\" id=\"Toan_tap_phan_biet_va_kiem_dinh_Inox_cho_ky_su_tho_va_chu_xuong\"><\/span><span class=\"ez-toc-section\" id=\"Toan_tap_phan_biet_va_kiem_dinh_Inox_cho_ky_su_tho_va_chu_xuong\"><\/span>To\u00e0n t\u1eadp ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh Inox cho k\u1ef9 s\u01b0, th\u1ee3 v\u00e0 ch\u1ee7 x\u01b0\u1edfng<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trong th\u1ecb tr\u01b0\u1eddng inox bi\u1ebfn \u0111\u1ed9ng, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa 201, 304, 316 hay 430 \u0111\u00f4i khi ch\u1ec9 th\u1ec3 hi\u1ec7n \u1edf v\u00e0i ph\u1ea7n tr\u0103m niken, molypden ho\u1eb7c m\u1ed9t l\u1edbp \u0111\u00e1nh b\u00f3ng b\u1ec1 m\u1eb7t. Sai m\u1ed9t ly, chi ph\u00ed b\u1ea3o h\u00e0nh, \u0103n m\u00f2n r\u1ed7, n\u1ee9t m\u1ecfi h\u00e0n c\u00f3 th\u1ec3 \u0111\u1ed9i l\u00ean g\u1ea5p nhi\u1ec1u l\u1ea7n gi\u00e1 v\u1eadt t\u01b0. \u0110\u00e2y l\u00e0 n\u1ed7i lo th\u01b0\u1eddng tr\u1ef1c c\u1ee7a k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 ch\u1ee7 x\u01b0\u1edfng khi l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho b\u1ebfp c\u00f4ng nghi\u1ec7p, lan can, b\u1ed3n b\u1ec3 hay thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m. B\u00e0i vi\u1ebft n\u00e0y gi\u00fap b\u1ea1n chu\u1ea9n h\u00f3a c\u00e1ch ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh inox theo chu\u1ea9n th\u1ef1c h\u00e0nh t\u1ea1i x\u01b0\u1edfng: t\u1eeb nh\u1eadn bi\u1ebft b\u1eb1ng m\u1eaft, th\u1eed nam ch\u00e2m, thu\u1ed1c th\u1eed\/axit, tia l\u1eeda m\u00e0i, c\u00e2n \u0111o t\u1ef7 tr\u1ecdng \u0111\u1ebfn PMI t\u1ea1i ch\u1ed7 v\u00e0 ph\u00e2n t\u00edch quang ph\u1ed5 trong ph\u00f2ng lab. B\u1ea1n s\u1ebd c\u00f3 m\u1ed9t checklist 10 b\u01b0\u1edbc \u0111\u1ec3 \u00e1p d\u1ee5ng ngay khi nh\u1eadp kho, hi\u1ec3u r\u00f5 chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 304 ph\u1ed5 bi\u1ebfn, bi\u1ebft c\u00e1ch x\u00e1c minh CO\/CQ v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro mua nh\u1ea7m h\u00e0ng t\u00e1i ch\u1ebf. M\u1ee5c ti\u00eau l\u00e0 t\u1ea1o m\u1ed9t quy tr\u00ecnh quy\u1ebft \u0111\u1ecbnh v\u1eadt li\u1ec7u \u0111\u00e1ng tin c\u1eady, nhanh, ti\u1ebft ki\u1ec7m v\u00e0 \u0111\u1ee7 b\u1eb1ng ch\u1ee9ng k\u1ef9 thu\u1eadt khi c\u1ea7n truy xu\u1ea5t.<\/p>\n<h2 id=\"toc-1-buc-tranh-nen-tang-inox-la-gi-vi-sao-phai-kiem-din\"><span class=\"ez-toc-section\" id=\"Buc_tranh_nen_tang_Inox_la_gi_vi_sao_phai_kiem_dinh\"><\/span><span class=\"ez-toc-section\" id=\"Buc_tranh_nen_tang_Inox_la_gi_vi_sao_phai_kiem_dinh\"><\/span>B\u1ee9c tranh n\u1ec1n t\u1ea3ng: Inox l\u00e0 g\u00ec, v\u00ec sao ph\u1ea3i ki\u1ec3m \u0111\u1ecbnh?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) l\u00e0 h\u1ee3p kim s\u1eaft c\u00f3 t\u1ed1i thi\u1ec3u ~10,5% Cr t\u1ea1o l\u1edbp m\u00e0ng th\u1ee5 \u0111\u1ed9ng ch\u1ed1ng \u0103n m\u00f2n. T\u00f9y th\u00e0nh ph\u1ea7n Ni, Mo, Mn, C\u2026, inox chia th\u00e0nh c\u00e1c nh\u00f3m ch\u00ednh:<br \/>\n&#8211; Austenitic (201, 304, 316\u2026): kh\u00f4ng ho\u1eb7c \u00edt t\u1eeb t\u00ednh, d\u1ec5 gia c\u00f4ng, ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t.<br \/>\n&#8211; Ferritic (409, 430\u2026): c\u00f3 t\u1eeb t\u00ednh, ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i, gi\u00e1 d\u1ec5 ch\u1ecbu.<br \/>\n&#8211; Martensitic (410, 420\u2026): c\u00f3 t\u1eeb t\u00ednh, c\u1ee9ng, d\u00f9ng cho dao\/khu\u00f4n.<br \/>\n&#8211; Duplex (2205\u2026): c\u00e2n b\u1eb1ng b\u1ec1n\/corrosion, c\u00f3 t\u1eeb t\u00ednh m\u1ed9t ph\u1ea7n.<\/p>\n<p>Ki\u1ec3m \u0111\u1ecbnh inox nh\u1eb1m \u0111\u1ea1t 3 m\u1ee5c ti\u00eau: x\u00e1c nh\u1eadn \u0111\u00fang m\u00e1c th\u00e9p theo ti\u00eau chu\u1ea9n (ASTM\/EN\/TCVN), \u0111\u1ea3m b\u1ea3o t\u00ednh n\u0103ng s\u1eed d\u1ee5ng (kh\u00e1ng \u0103n m\u00f2n, c\u01a1 t\u00ednh, h\u00e0n \u0111\u01b0\u1ee3c), v\u00e0 ki\u1ec3m so\u00e1t r\u1ee7i ro ph\u00e1p l\u00fd\/ch\u1ea5t l\u01b0\u1ee3ng (CO, CQ\/EN 10204 3.1). Trong b\u1ed1i c\u1ea3nh h\u00e0ng pha tr\u1ed9n, t\u00e1i ch\u1ebf, gi\u1ea3 nh\u00e3n \u0111\u1ed9n Ni ph\u1ed5 bi\u1ebfn, vi\u1ec7c ki\u1ec3m \u0111\u1ecbnh \u0111a l\u1edbp (visual \u2192 th\u1eed nhanh \u2192 PMI \u2192 lab) gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh v\u1eadt li\u1ec7u c\u00f3 c\u01a1 s\u1edf, ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n<h2 id=\"toc-2-nhung-khia-canh-cot-loi-can-nam-truoc-khi-thu-nghi\"><span class=\"ez-toc-section\" id=\"Nhung_khia_canh_cot_loi_can_nam_truoc_khi_thu_nghiem\"><\/span><span class=\"ez-toc-section\" id=\"Nhung_khia_canh_cot_loi_can_nam_truoc_khi_thu_nghiem\"><\/span>Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i c\u1ea7n n\u1eafm tr\u01b0\u1edbc khi th\u1eed nghi\u1ec7m<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Thanh_phan_hoa_hoc_va_anh_huong_den_tinh_nang\"><\/span><span class=\"ez-toc-section\" id=\"1_Thanh_phan_hoa_hoc_va_anh_huong_den_tinh_nang\"><\/span>1) Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh n\u0103ng<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Cr t\u1ea1o m\u00e0ng th\u1ee5 \u0111\u1ed9ng; Ni \u1ed5n \u0111\u1ecbnh austenite, t\u0103ng kh\u00e1ng \u0103n m\u00f2n; Mo c\u1ea3i thi\u1ec7n kh\u00e1ng r\u1ed7 (\u0111\u1eb7c bi\u1ec7t n\u01b0\u1edbc bi\u1ec3n\/Cl-). V\u00ed d\u1ee5: 304 (~18Cr-8Ni) d\u00f9ng t\u1ed1t n\u1ed9i th\u1ea5t\/\u0111\u1ed3 b\u1ebfp; 316 (~17Cr-10Ni-2Mo) th\u00edch h\u1ee3p v\u00f9ng bi\u1ec3n; 201 (Cr-Ni th\u1ea5p, Mn cao) ph\u00f9 h\u1ee3p trang tr\u00ed trong nh\u00e0, h\u1ea1n ch\u1ebf m\u00f4i tr\u01b0\u1eddng chlorides.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Tu_tinh_khong_phai_%E2%80%9Cthuoc_do_tuyet_doi%E2%80%9D\"><\/span><span class=\"ez-toc-section\" id=\"2_Tu_tinh_khong_phai_%E2%80%9Cthuoc_do_tuyet_doi%E2%80%9D\"><\/span>2) T\u1eeb t\u00ednh kh\u00f4ng ph\u1ea3i \u201cth\u01b0\u1edbc \u0111o tuy\u1ec7t \u0111\u1ed1i\u201d<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Austenitic nguy\u00ean tr\u1ea1ng h\u1ea7u nh\u01b0 kh\u00f4ng h\u00fat nam ch\u00e2m, nh\u01b0ng bi\u1ebfn d\u1ea1ng ngu\u1ed9i (c\u00e1n, d\u1eadp, h\u00e0n) c\u00f3 th\u1ec3 l\u00e0m ch\u00fang h\u01a1i h\u00fat. Ferritic\/martensitic h\u00fat m\u1ea1nh. V\u00ec v\u1eady, ph\u00e9p th\u1eed nam ch\u00e2m ch\u1ec9 l\u00e0 s\u00e0ng l\u1ecdc s\u01a1 b\u1ed9, kh\u00f4ng k\u1ebft lu\u1eadn m\u00e1c th\u00e9p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Be_mat_%E2%80%93_ky_hieu_hoan_thien_va_khiem_khuyet\"><\/span><span class=\"ez-toc-section\" id=\"3_Be_mat_%E2%80%93_ky_hieu_hoan_thien_va_khiem_khuyet\"><\/span>3) B\u1ec1 m\u1eb7t \u2013 k\u00fd hi\u1ec7u ho\u00e0n thi\u1ec7n v\u00e0 khi\u1ebfm khuy\u1ebft<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No.1 (c\u00e1n n\u00f3ng t\u1ea9y g\u1ec9), 2B (c\u00e1n ngu\u1ed9i m\u1edd), BA (b\u00f3ng g\u01b0\u01a1ng), No.4\/HL (x\u01b0\u1edbc hairline). H\u00e0ng t\u00e1i ch\u1ebf\/lo\u1ea1i 2 th\u01b0\u1eddng c\u00f3 s\u1ecdc c\u00e1n, r\u1ed7 kim, v\u1ebft l\u01b0\u1ee3n s\u00f3ng, \u0111\u1ed9 d\u00e0y kh\u00f4ng \u0111\u1ec1u. B\u1ec1 m\u1eb7t \u0111\u1eb9p kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111\u00fang m\u00e1c, nh\u01b0ng nhi\u1ec1u khuy\u1ebft t\u1eadt l\u00e0 t\u00edn hi\u1ec7u r\u1ee7i ro.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Tai_lieu_va_truy_xuat_nguon_goc\"><\/span><span class=\"ez-toc-section\" id=\"4_Tai_lieu_va_truy_xuat_nguon_goc\"><\/span>4) T\u00e0i li\u1ec7u v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>MTC (EN 10204 3.1\/3.2) ph\u1ea3i c\u00f3 heat number, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t (ASTM A240\/A276\u2026). CO th\u1ec3 hi\u1ec7n xu\u1ea5t x\u1ee9. Truy xu\u1ea5t th\u00e0nh c\u00f4ng khi nh\u00e3n, tem coil\/sheet, MTC, phi\u1ebfu giao h\u00e0ng kh\u1edbp nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Phuong_phap_thu_ket_hop_nhieu_lop\"><\/span><span class=\"ez-toc-section\" id=\"5_Phuong_phap_thu_ket_hop_nhieu_lop\"><\/span>5) Ph\u01b0\u01a1ng ph\u00e1p th\u1eed: k\u1ebft h\u1ee3p nhi\u1ec1u l\u1edbp<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Visual\/d\u1ee5ng c\u1ee5 c\u1ea7m tay \u2192 th\u1eed nam ch\u00e2m \u2192 thu\u1ed1c th\u1eed\/axit \u2192 c\u00e2n \u0111o t\u1ef7 tr\u1ecdng \u2192 tia l\u1eeda m\u00e0i \u2192 PMI XRF\/OES \u2192 lab (OES, ph\u00e2n t\u00edch \u01b0\u1edbt, vi kim t\u01b0\u01a1ng, \u0103n m\u00f2n). M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p c\u00f3 sai s\u1ed1\/gi\u1edbi h\u1ea1n; d\u00f9ng k\u1ebft h\u1ee3p \u0111\u1ec3 t\u0103ng \u0111\u1ed9 tin c\u1eady.<\/p>\n<h2 id=\"toc-3-dao-sau-theo-chu-de-quy-trinh-meo-nghe-va-canh-bao\"><span class=\"ez-toc-section\" id=\"Dao_sau_theo_chu_de_quy_trinh_meo_nghe_va_canh_bao\"><\/span><span class=\"ez-toc-section\" id=\"Dao_sau_theo_chu_de_quy_trinh_meo_nghe_va_canh_bao\"><\/span>\u0110\u00e0o s\u00e2u theo ch\u1ee7 \u0111\u1ec1: quy tr\u00ecnh, m\u1eb9o ngh\u1ec1 v\u00e0 c\u1ea3nh b\u00e1o<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 b\u1eaft \u0111\u1ea7u, nhi\u1ec1u sai l\u1ec7ch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n ngay tr\u00ean b\u1ec1 m\u1eb7t. Nh\u1eadn bi\u1ebft b\u1eb1ng m\u1eaft th\u01b0\u1eddng gi\u00fap lo\u1ea1i tr\u1eeb nhanh c\u00e1c l\u00f4 h\u00e0ng k\u00e9m: nh\u00ecn \u0111\u1ed9 b\u00f3ng, m\u00e0u s\u1eafc \u00e1nh x\u00e1m \u0111\u1eb7c tr\u01b0ng c\u1ee7a 304\/316 so v\u1edbi 201, v\u00e0 ki\u1ec3m tra b\u1ec1 m\u1eb7t c\u00f3 v\u1ebft r\u1ed7\/nh\u0103n d\u1eadp. H\u01b0\u1edbng d\u1eabn chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y t\u1ed5ng h\u1ee3p ti\u00eau ch\u00ed nh\u1eadn bi\u1ebft v\u00e0 l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi ch\u1ec9 \u201cnh\u00ecn qua\u201d.<br \/>\n<!-- CLUSTER_PLACEHOLDER_1 --><\/p>\n<p>Ph\u00e9p th\u1eed nam ch\u00e2m l\u00e0 thao t\u00e1c nhanh nh\u1ea5t, nh\u01b0ng d\u1ec5 g\u00e2y ng\u1ed9 nh\u1eadn. \u0110o\u1ea1n n\u1ed9i dung sau ph\u00e2n t\u00edch tr\u01b0\u1eddng h\u1ee3p n\u00e0o \u201ch\u00fat = ferritic\u201d, khi n\u00e0o 304 v\u1eabn c\u00f3 t\u1eeb t\u00ednh do bi\u1ebfn d\u1ea1ng\/h\u00e0n, v\u00e0 c\u00e1ch d\u00f9ng nam ch\u00e2m \u0111\u00fang \u0111\u1ec3 s\u00e0ng l\u1ecdc thay v\u00ec k\u1ebft lu\u1eadn sai m\u00e1c.<br \/>\n<!-- CLUSTER_PLACEHOLDER_2 --><\/p>\n<p>Trong \u0111i\u1ec1u ki\u1ec7n x\u01b0\u1edfng, thu\u1ed1c th\u1eed chuy\u00ean d\u1ee5ng\/axit l\u00e0 c\u00e1ch r\u1ebb v\u00e0 kh\u00e1 tin c\u1eady \u0111\u1ec3 ph\u00e2n bi\u1ec7t 304 v\u1edbi 201 nh\u1edd s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 Ni\/Mn. Ph\u1ea7n h\u01b0\u1edbng d\u1eabn b\u00ean d\u01b0\u1edbi n\u00eau quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc, an to\u00e0n h\u00f3a ch\u1ea5t, th\u1eddi gian ch\u1edd v\u00e0 c\u00e1ch \u0111\u1ecdc m\u00e0u\/v\u1ebft ph\u1ea3n \u1ee9ng cho k\u1ebft qu\u1ea3 r\u00f5 r\u00e0ng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_3 --><\/p>\n<p>\u0110\u1ed1i v\u1edbi th\u1ee3 c\u01a1 kh\u00ed, tia l\u1eeda m\u00e0i tr\u00ean \u0111\u00e1 m\u00e0i th\u1ec3 hi\u1ec7n \u0111\u1eb7c tr\u01b0ng h\u1ee3p kim: 201\/430 cho tia ph\u00e2n nh\u00e1nh h\u01a1n so v\u1edbi 304\/316 \u00edt tia, \u0111\u1ecf m\u1edd. M\u1ee5c sau \u0111\u00e2y cung c\u1ea5p quy t\u1eafc nh\u1eadn di\u1ec7n, \u1ea3nh minh h\u1ecda thao t\u00e1c v\u00e0 c\u1ea3nh b\u00e1o khi v\u1eadt li\u1ec7u \u0111\u00e3 t\u00f4i c\u1ee9ng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_4 --><\/p>\n<p>\u0110o tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 nh\u1eadn di\u1ec7n th\u00e0nh ph\u1ea7n, \u0111\u1eb7c bi\u1ec7t khi c\u1ea7n ph\u00e2n bi\u1ec7t 201 (~7,7\u20137,8 g\/cm3) v\u00e0 304 (~7,9\u20138,0 g\/cm3). N\u1ed9i dung ti\u1ebfp theo tr\u00ecnh b\u00e0y c\u00e1ch c\u00e2n \u2013 \u0111o th\u1ec3 t\u00edch ch\u00ednh x\u00e1c v\u00e0 gi\u1edbi h\u1ea1n ph\u01b0\u01a1ng ph\u00e1p v\u1edbi \u1ed1ng r\u1ed7ng, t\u1ea5m m\u1ecfng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_5 --><\/p>\n<p>Th\u1ecb tr\u01b0\u1eddng c\u00f3 nhi\u1ec1u chi\u00eau \u201ch\u00f4 bi\u1ebfn\u201d 201 th\u00e0nh 304: gi\u1ea3 tem coil, pha tr\u1ed9n l\u00f4, ph\u1ee7 b\u1ec1 m\u1eb7t, \u0111i\u1ec1u h\u01b0\u1edbng th\u1eed nam ch\u00e2m. Ph\u1ea7n d\u01b0\u1edbi \u0111\u00e2y t\u1ed5ng h\u1ee3p chi\u00eau tr\u00f2 ph\u1ed5 bi\u1ebfn, d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh cho \u0111\u1ed9i thu mua.<br \/>\n<!-- CLUSTER_PLACEHOLDER_6 --><\/p>\n<p>CO\/CQ \u0111\u00e1ng tin l\u00e0 n\u1ec1n t\u1ea3ng truy xu\u1ea5t. M\u1ee5c ti\u1ebfp theo h\u01b0\u1edbng d\u1eabn ki\u1ec3m tra th\u1eadt gi\u1ea3 ch\u1ee9ng ch\u1ec9: \u0111\u1ed1i chi\u1ebfu heat number, chu\u1ea9n ti\u00eau ch\u00ed, con d\u1ea5u\/QR, li\u00ean h\u1ec7 nh\u00e0 m\u00e1y c\u1ea5p MTC v\u00e0 \u0111\u1ed1i chi\u1ebfu d\u1eef li\u1ec7u tr\u00ean nhi\u1ec1u ch\u1ee9ng t\u1eeb.<br \/>\n<!-- CLUSTER_PLACEHOLDER_7 --><\/p>\n<p>Khi c\u1ea7n kh\u1eb3ng \u0111\u1ecbnh tuy\u1ec7t \u0111\u1ed1i, h\u00e3y d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m \u0111\u1ecbnh chuy\u00ean nghi\u1ec7p trong ph\u00f2ng lab\/PMI: XRF c\u1ea7m tay, OES \u0111o nguy\u00ean t\u1ed1 nh\u1eb9 (C), ph\u00e2n t\u00edch \u01b0\u1edbt, vi kim t\u01b0\u01a1ng, th\u1eed \u0103n m\u00f2n. Ph\u1ea7n n\u00e0y gi\u1ea3i th\u00edch khi n\u00e0o ch\u1ecdn XRF, khi n\u00e0o c\u1ea7n OES v\u00e0 ti\u00eau chu\u1ea9n th\u1eed li\u00ean quan.<br \/>\n<!-- CLUSTER_PLACEHOLDER_8 --><\/p>\n<p>\u0110\u1ec3 v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, m\u1ed9t checklist g\u1ecdn g\u00e0ng gi\u00fap \u0111\u1ed9i kho\/x\u01b0\u1edfng kh\u00f4ng b\u1ecf s\u00f3t b\u01b0\u1edbc quan tr\u1ecdng. T\u00e0i li\u1ec7u ti\u1ebfp theo \u0111\u01b0a ra 10 b\u01b0\u1edbc chu\u1ea9n h\u00f3a t\u1eeb l\u00fac nh\u1eadn h\u00e0ng \u0111\u1ebfn d\u00e1n nh\u00e3n, ni\u00eam phong v\u00e0 l\u01b0u h\u1ed3 s\u01a1.<br \/>\n<!-- CLUSTER_PLACEHOLDER_9 --><\/p>\n<p>Cu\u1ed1i c\u00f9ng, hi\u1ec3u r\u00f5 \u201cInox lo\u1ea1i 1\u201d (prime) v\u00e0 \u201clo\u1ea1i 2\u201d (secondary\/t\u00e1i ch\u1ebf) s\u1ebd tr\u00e1nh \u0111\u01b0\u1ee3c r\u1ee7i ro ch\u1ea5t l\u01b0\u1ee3ng \u1ea9n. Ph\u1ea7n d\u01b0\u1edbi \u0111\u00e2y ch\u1ec9 ra kh\u00e1c bi\u1ec7t th\u1ef1c t\u1ebf, r\u1ee7i ro ti\u1ec1m \u1ea9n v\u00e0 c\u00e1ch nh\u1eadn bi\u1ebft qua b\u1ec1 m\u1eb7t, dung sai v\u00e0 gi\u1ea5y t\u1edd.<br \/>\n<!-- CLUSTER_PLACEHOLDER_10 --><\/p>\n<h2 id=\"toc-4-ung-dung-thuc-te-va-khuyen-nghi-tu-chuyen-gia\"><span class=\"ez-toc-section\" id=\"Ung_dung_thuc_te_va_khuyen_nghi_tu_chuyen_gia\"><\/span><span class=\"ez-toc-section\" id=\"Ung_dung_thuc_te_va_khuyen_nghi_tu_chuyen_gia\"><\/span>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb t\u1eeb chuy\u00ean gia<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; \u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh:<br \/>\n  1) B\u1ebfp c\u00f4ng nghi\u1ec7p trong nh\u00e0: 304 2B\/BA, h\u00e0n b\u1eb1ng que\/ d\u00e2y ER308L; th\u1eed nhanh b\u1eb1ng thu\u1ed1c th\u1eed Ni v\u00e0 ki\u1ec3m tra b\u1ec1 m\u1eb7t No.4\/HL th\u00e0nh ph\u1ea9m.<br \/>\n  2) Ngo\u00e0i tr\u1eddi ven bi\u1ec3n: 316\/316L, ki\u1ec3m tra Mo b\u1eb1ng PMI; y\u00eau c\u1ea7u MTC 3.1, th\u1eed mu\u1ed1i phun theo ASTM B117 khi d\u1ef1 \u00e1n quan tr\u1ecdng.<br \/>\n  3) Lan can\/trang tr\u00ed n\u1ed9i th\u1ea5t chi ph\u00ed t\u1ed1i \u01b0u: 201 d\u00f9ng trong m\u00f4i tr\u01b0\u1eddng kh\u00f4; s\u01a1n\/ ph\u1ee7 b\u1ea3o v\u1ec7 v\u1ecb tr\u00ed d\u1ec5 b\u00e1m mu\u1ed1i; c\u1ea3nh b\u00e1o kh\u00f4ng d\u00f9ng \u1edf h\u1ed3 b\u01a1i\/chlorides.<\/p>\n<p>&#8211; Quy t\u1eafc th\u1ef1c h\u00e0nh t\u1ed1t:<br \/>\n  \u2022 Kh\u00f4ng d\u1ef1a v\u00e0o m\u1ed9t ph\u00e9p th\u1eed duy nh\u1ea5t. K\u1ebft h\u1ee3p: nh\u00ecn \u2013 nam ch\u00e2m \u2013 thu\u1ed1c th\u1eed \u2013 PMI khi tr\u1ecb gi\u00e1 \u0111\u01a1n h\u00e0ng l\u1edbn.<br \/>\n  \u2022 Lu\u00f4n \u0111\u1ed1i chi\u1ebfu heat number gi\u1eefa tem s\u1ea3n ph\u1ea9m, phi\u1ebfu giao h\u00e0ng v\u00e0 MTC; ch\u1ee5p \u1ea3nh l\u01b0u h\u1ed3 s\u01a1.<br \/>\n  \u2022 B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t: d\u00f9ng t\u1ea5m ph\u1ee7 PVC khi gia c\u00f4ng; tr\u00e1nh nhi\u1ec5m b\u1ea9n s\u1eaft cacbon (x\u1ec9 m\u00e0i, ch\u1ed5i th\u00e9p th\u01b0\u1eddng).<br \/>\n  \u2022 Ch\u1ecdn v\u1eadt li\u1ec7u h\u00e0n \u0111\u00fang m\u00e1c (ER308L cho 304; ER316L cho 316).<br \/>\n  \u2022 Qu\u1ea3n l\u00fd t\u1ed3n kho theo l\u00f4\/heat, d\u00e1n nh\u00e3n r\u00f5 r\u00e0ng \u0111\u1ec3 tr\u00e1nh tr\u1ed9n m\u00e1c.<\/p>\n<p>&#8211; L\u1ed7i ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh:<br \/>\n  \u2022 K\u1ebft lu\u1eadn \u201ckh\u00f4ng h\u00fat = 304\u201d ho\u1eb7c \u201ch\u00fat = 430\u201d m\u1ed9t c\u00e1ch m\u00e1y m\u00f3c.<br \/>\n  \u2022 B\u1ecf qua ki\u1ec3m tra \u0111\u1ed9 d\u00e0y\/th\u01b0\u1edbc l\u00e1, d\u1eabn \u0111\u1ebfn s\u1ea3n ph\u1ea9m d\u01b0\u1edbi chu\u1ea9n.<br \/>\n  \u2022 Th\u1eed axit\/thu\u1ed1c th\u1eed kh\u00f4ng PPE, kh\u00f4ng trung h\u00f2a\/r\u1eeda s\u1ea1ch, l\u00e0m \u1ed1 b\u1ec1 m\u1eb7t.<br \/>\n  \u2022 Tin CO\/CQ photo m\u1edd, kh\u00f4ng c\u00f3 li\u00ean k\u1ebft x\u00e1c th\u1ef1c\/QR ho\u1eb7c kh\u00f4ng kh\u1edbp heat number.<\/p>\n<h2 id=\"toc-5-ket-luan-va-buoc-tiep-theo\"><span class=\"ez-toc-section\" id=\"Ket_luan_va_buoc_tiep_theo\"><\/span><span class=\"ez-toc-section\" id=\"Ket_luan_va_buoc_tiep_theo\"><\/span>K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ph\u00e2n bi\u1ec7t v\u00e0 ki\u1ec3m \u0111\u1ecbnh inox hi\u1ec7u qu\u1ea3 l\u00e0 quy tr\u00ecnh nhi\u1ec1u l\u1edbp: hi\u1ec3u v\u1eadt li\u1ec7u \u2013 s\u00e0ng l\u1ecdc hi\u1ec7n tr\u01b0\u1eddng \u2013 x\u00e1c nh\u1eadn b\u1eb1ng d\u1eef li\u1ec7u \u2013 th\u1ea9m \u0111\u1ecbnh ph\u00f2ng lab khi c\u1ea7n. N\u1eafm v\u1eefng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p tr\u00ean s\u1ebd gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang m\u00e1c, \u0111\u00fang b\u1ec1 m\u1eb7t, \u0111\u00fang ti\u00eau chu\u1ea9n, gi\u1ea3m thi\u1ec3u r\u1ee7i ro \u0103n m\u00f2n v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi. N\u1ebfu b\u1ea1n \u0111ang chu\u1ea9n b\u1ecb nh\u1eadp l\u00f4 inox m\u1edbi, h\u00e3y \u00e1p d\u1ee5ng checklist 10 b\u01b0\u1edbc v\u00e0 thi\u1ebft l\u1eadp quy tr\u00ecnh PMI t\u1ed1i thi\u1ec3u cho c\u00e1c h\u1ea1ng m\u1ee5c tr\u1ecdng y\u1ebfu. C\u1ea7n t\u01b0 v\u1ea5n v\u1eadt li\u1ec7u theo \u1ee9ng d\u1ee5ng ho\u1eb7c h\u1ed7 tr\u1ee3 ki\u1ec3m tra t\u1ea1i ch\u1ed7\/PMI v\u00e0 x\u00e1c minh CO\/CQ? Li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i t\u1ea1i H\u00e0 N\u1ed9i \u0111\u1ec3 nh\u1eadn khuy\u1ebfn ngh\u1ecb m\u00e1c th\u00e9p, m\u1eabu th\u1eed v\u00e0 b\u00e1o gi\u00e1 ph\u00f9 h\u1ee3p d\u1ef1 \u00e1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chu\u1ea9n h\u00f3a quy tr\u00ecnh nh\u1eadn bi\u1ebft v\u00e0 ki\u1ec3m \u0111\u1ecbnh inox: t\u1eeb nh\u00ecn, nam ch\u00e2m, axit, tia l\u1eeda \u0111\u1ebfn PMI\/lab. Checklist 10 b\u01b0\u1edbc v\u00e0 c\u00e1ch tr\u00e1nh mua nh\u1ea7m 201 gi\u1ea3 304.<\/p>\n","protected":false},"author":7,"featured_media":1069,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2406","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2406","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=2406"}],"version-history":[{"count":1,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2406\/revisions"}],"predecessor-version":[{"id":2408,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2406\/revisions\/2408"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1069"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2406"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}