{"id":2300,"date":"2026-07-20T12:34:26","date_gmt":"2026-07-20T05:34:26","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/"},"modified":"2026-07-20T12:34:26","modified_gmt":"2026-07-20T05:34:26","slug":"han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/","title":{"rendered":"H\u00e0n que Inox cho ng\u01b0\u1eddi m\u1edbi: ch\u1ecdn \u0111\u00fang que v\u00e0 k\u1ef9 thu\u1eadt chu\u1ea9n"},"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;2300&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;H\u00e0n que Inox cho ng\u01b0\u1eddi m\u1edbi: ch\u1ecdn \u0111\u00fang que v\u00e0 k\u1ef9 thu\u1eadt chu\u1ea9n&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 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<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><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Noi_dung_chinh\" >N\u1ed9i dung ch\u00ednh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Han_que_Inox_la_gi_va_khi_nao_nen_dung\" >H\u00e0n que Inox l\u00e0 g\u00ec v\u00e0 khi n\u00e0o n\u00ean d\u00f9ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Cach_doc_ky_hieu_que_han_Inox_theo_AWS_A54\" >C\u00e1ch \u0111\u1ecdc k\u00fd hi\u1ec7u que h\u00e0n Inox theo AWS A5.4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Chon_ma_que_han_phu_hop_voi_mac_Inox_va_ung_dung\" >Ch\u1ecdn m\u00e3 que h\u00e0n ph\u00f9 h\u1ee3p v\u1edbi m\u00e1c Inox v\u00e0 \u1ee9ng d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Duong_kinh_que_chieu_day_vat_lieu_va_cuong_do_dong\" >\u0110\u01b0\u1eddng k\u00ednh que, chi\u1ec1u d\u00e0y v\u1eadt li\u1ec7u v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Chuan_bi_mep_han_va_han_che_nhiem_sat\" >Chu\u1ea9n b\u1ecb m\u00e9p h\u00e0n v\u00e0 h\u1ea1n ch\u1ebf nhi\u1ec5m s\u1eaft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Ky_thuat_thao_tac_co_ban_cho_nguoi_moi\" >K\u1ef9 thu\u1eadt thao t\u00e1c c\u01a1 b\u1ea3n cho ng\u01b0\u1eddi m\u1edbi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Goc_que_chieu_dai_ho_quang_toc_do\" >G\u00f3c que, chi\u1ec1u d\u00e0i h\u1ed3 quang, t\u1ed1c \u0111\u1ed9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Trinh_tu_lop_va_ve_sinh_giua_cac_luot\" >Tr\u00ecnh t\u1ef1 l\u1edbp v\u00e0 v\u1ec7 sinh gi\u1eefa c\u00e1c l\u01b0\u1ee3t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Vi_tri_han\" >V\u1ecb tr\u00ed 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-11\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Kiem_soat_nhiet_de_tranh_nut_nong_va_bien_dang\" >Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ec3 tr\u00e1nh n\u1ee9t n\u00f3ng v\u00e0 bi\u1ebfn d\u1ea1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Han_mot_phia_ong_va_bien_phap_ho_tro_chan_moi\" >H\u00e0n m\u1ed9t ph\u00eda, \u1ed1ng v\u00e0 bi\u1ec7n ph\u00e1p h\u1ed7 tr\u1ee3 ch\u00e2n m\u1ed1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Han_di_vat_lieu_Inox_%E2%80%93_thep_cac-bon_meo_thuc_chien\" >H\u00e0n d\u1ecb v\u1eadt li\u1ec7u Inox \u2013 th\u00e9p c\u00e1c-bon: m\u1eb9o th\u1ef1c chi\u1ebfn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Xu_ly_sau_han_de_dat_be_mat_chong_an_mon\" >X\u1eed l\u00fd sau h\u00e0n \u0111\u1ec3 \u0111\u1ea1t b\u1ec1 m\u1eb7t ch\u1ed1ng \u0103n m\u00f2n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Loi_thuong_gap_va_cach_khac_phuc\" >L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Bao_quan_va_say_que_han_Inox\" >B\u1ea3o qu\u1ea3n v\u00e0 s\u1ea5y que h\u00e0n Inox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#An_toan_lao_dong_khi_han_Inox\" >An to\u00e0n lao \u0111\u1ed9ng khi h\u00e0n Inox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Checklist_8_buoc_han_que_Inox_cho_nguoi_moi\" >Checklist 8 b\u01b0\u1edbc h\u00e0n que Inox cho ng\u01b0\u1eddi m\u1edbi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Cau_hoi_nhanh\" >C\u00e2u h\u1ecfi nhanh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Nguon_tham_khao\" >Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/inoxcuongthinh.com\/han-que-inox-cho-nguoi-moi-chon-dung-que-va-ky-thuat-chuan\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Noi_dung_chinh\"><\/span>N\u1ed9i dung ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"#toc-0-han-que-inox-la-gi-va-khi-nao-nen-dung\">H\u00e0n que Inox l\u00e0 g\u00ec v\u00e0 khi n\u00e0o n\u00ean d\u00f9ng?<\/a><\/li>\n<li><a href=\"#toc-1-cach-doc-ky-hieu-que-han-inox-theo-aws-a54\">C\u00e1ch \u0111\u1ecdc k\u00fd hi\u1ec7u que h\u00e0n Inox theo AWS A5.4<\/a><\/li>\n<li><a href=\"#toc-2-chon-ma-que-han-phu-hop-voi-mac-inox-va-ung-dung\">Ch\u1ecdn m\u00e3 que h\u00e0n ph\u00f9 h\u1ee3p v\u1edbi m\u00e1c Inox v\u00e0 \u1ee9ng d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-3-duong-kinh-que-chieu-day-vat-lieu-va-cuong-do-dong\">\u0110\u01b0\u1eddng k\u00ednh que, chi\u1ec1u d\u00e0y v\u1eadt li\u1ec7u v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng<\/a><\/li>\n<li><a href=\"#toc-4-chuan-bi-mep-han-va-han-che-nhiem-sat\">Chu\u1ea9n b\u1ecb m\u00e9p h\u00e0n v\u00e0 h\u1ea1n ch\u1ebf nhi\u1ec5m s\u1eaft<\/a><\/li>\n<li><a href=\"#toc-5-ky-thuat-thao-tac-co-ban-cho-nguoi-moi\">K\u1ef9 thu\u1eadt thao t\u00e1c c\u01a1 b\u1ea3n cho ng\u01b0\u1eddi m\u1edbi<\/a><\/li>\n<li><a href=\"#toc-6-kiem-soat-nhiet-de-tranh-nut-nong-va-bien-dang\">Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ec3 tr\u00e1nh n\u1ee9t n\u00f3ng v\u00e0 bi\u1ebfn d\u1ea1ng<\/a><\/li>\n<li><a href=\"#toc-7-han-mot-phia-ong-va-bien-phap-ho-tro-chan-moi\">H\u00e0n m\u1ed9t ph\u00eda, \u1ed1ng v\u00e0 bi\u1ec7n ph\u00e1p h\u1ed7 tr\u1ee3 ch\u00e2n m\u1ed1i<\/a><\/li>\n<li><a href=\"#toc-8-han-di-vat-lieu-inox-thep-cac-bon-meo-thuc-chien\">H\u00e0n d\u1ecb v\u1eadt li\u1ec7u Inox \u2013 th\u00e9p c\u00e1c-bon: m\u1eb9o th\u1ef1c chi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-9-xu-ly-sau-han-de-dat-be-mat-chong-an-mon\">X\u1eed l\u00fd sau h\u00e0n \u0111\u1ec3 \u0111\u1ea1t b\u1ec1 m\u1eb7t ch\u1ed1ng \u0103n m\u00f2n<\/a><\/li>\n<li><a href=\"#toc-10-loi-thuong-gap-va-cach-khac-phuc\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-11-bao-quan-va-say-que-han-inox\">B\u1ea3o qu\u1ea3n v\u00e0 s\u1ea5y que h\u00e0n Inox<\/a><\/li>\n<li><a href=\"#toc-12-an-toan-lao-dong-khi-han-inox\">An to\u00e0n lao \u0111\u1ed9ng khi h\u00e0n Inox<\/a><\/li>\n<li><a href=\"#toc-13-checklist-8-buoc-han-que-inox-cho-nguoi-moi\">Checklist 8 b\u01b0\u1edbc h\u00e0n que Inox cho ng\u01b0\u1eddi m\u1edbi<\/a><\/li>\n<li><a href=\"#toc-14-cau-hoi-nhanh\">C\u00e2u h\u1ecfi nhanh<\/a><\/li>\n<li><a href=\"#toc-15-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-16-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>H\u00e0n que Inox (SMAW) l\u00e0 ph\u01b0\u01a1ng ph\u00e1p linh ho\u1ea1t, hi\u1ec7u qu\u1ea3 ngo\u00e0i tr\u1eddi, ph\u00f9 h\u1ee3p s\u1eeda ch\u1eefa v\u00e0 l\u1eafp d\u1ef1ng k\u1ebft c\u1ea5u Inox d\u00e0y v\u1eeba \u0111\u1ebfn d\u00e0y. B\u00e0i vi\u1ebft n\u00e0y t\u1eadp trung v\u00e0o c\u00e1ch ch\u1ecdn \u0111\u00fang que h\u00e0n v\u00e0 k\u1ef9 thu\u1eadt thao t\u00e1c chu\u1ea9n cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u, \u0111\u1ed3ng th\u1eddi \u0111\u1eb7t ch\u1ee7 \u0111\u1ec1 trong b\u1ed1i c\u1ea3nh t\u1ed5ng th\u1ec3 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p li\u00ean k\u1ebft Inox trong s\u1ea3n xu\u1ea5t v\u00e0 l\u1eafp d\u1ef1ng.<\/p>\n<h2 id=\"toc-0-han-que-inox-la-gi-va-khi-nao-nen-dung\"><span class=\"ez-toc-section\" id=\"Han_que_Inox_la_gi_va_khi_nao_nen_dung\"><\/span>H\u00e0n que Inox l\u00e0 g\u00ec v\u00e0 khi n\u00e0o n\u00ean d\u00f9ng?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Nguy\u00ean l\u00fd: H\u1ed3 quang gi\u1eefa que h\u00e0n b\u1ecdc thu\u1ed1c v\u00e0 v\u1eadt li\u1ec7u t\u1ea1o kim lo\u1ea1i m\u1ed1i h\u00e0n; l\u1edbp thu\u1ed1c t\u1ea1o x\u1ec9 b\u1ea3o v\u1ec7.<br \/>\n&#8211; \u01afu \u0111i\u1ec3m: D\u1ee5ng c\u1ee5 g\u1ecdn, \u00edt nh\u1ea1y gi\u00f3, ph\u00f9 h\u1ee3p thi c\u00f4ng hi\u1ec7n tr\u01b0\u1eddng, th\u00e9p d\u00e0y >2 mm, h\u00e0n c\u00e1c v\u1ecb tr\u00ed kh\u00f3.<br \/>\n&#8211; H\u1ea1n ch\u1ebf: T\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n MIG\/TIG; x\u1ec9 c\u1ea7n l\u00e0m s\u1ea1ch gi\u1eefa c\u00e1c l\u1edbp; ki\u1ec3m so\u00e1t nhi\u1ec7t quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh bi\u1ebfn m\u00e0u, n\u1ee9t n\u00f3ng.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng khuy\u1ebfn ngh\u1ecb: K\u1ebft c\u1ea5u ngo\u00e0i tr\u1eddi, b\u1ed3n b\u1ec3, tay v\u1ecbn, s\u1eeda ch\u1eefa, h\u00e0n d\u1ecb v\u1eadt li\u1ec7u Inox\u2013th\u00e9p c\u00e1c-bon b\u1eb1ng que chuy\u00ean d\u1ee5ng.<\/p>\n<h2 id=\"toc-1-cach-doc-ky-hieu-que-han-inox-theo-aws-a54\"><span class=\"ez-toc-section\" id=\"Cach_doc_ky_hieu_que_han_Inox_theo_AWS_A54\"><\/span>C\u00e1ch \u0111\u1ecdc k\u00fd hi\u1ec7u que h\u00e0n Inox theo AWS A5.4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>V\u00ed d\u1ee5: E308L-16<br \/>\n&#8211; E: \u0110i\u1ec7n c\u1ef1c (que h\u00e0n)<br \/>\n&#8211; 308: Th\u00e0nh ph\u1ea7n kim lo\u1ea1i m\u1ed1i h\u00e0n t\u01b0\u01a1ng th\u00edch v\u1edbi Inox 304 (Cr-Ni austenit)<br \/>\n&#8211; L: H\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p (\u22640,04%) ch\u1ed1ng nh\u1ea1y c\u1ea3m h\u00f3a, h\u1ea1n ch\u1ebf \u0103n m\u00f2n k\u1ebd h\u1ea1t<br \/>\n&#8211; S\u1ed1 \u0111u\u00f4i -15, -16, -17: Lo\u1ea1i thu\u1ed1c b\u1ecdc v\u00e0 d\u00f2ng \u0111i\u1ec7n<br \/>\n  &#8211; -15: Thu\u1ed1c ki\u1ec1m (basic), d\u00f9ng DC+, th\u00e2m nh\u1eadp s\u00e2u, t\u1ed1t cho v\u1ecb tr\u00ed \u0111\u1ee9ng<br \/>\n  &#8211; -16: Rutile-titania, AC ho\u1eb7c DC+, h\u1ed3 quang \u1ed5n \u0111\u1ecbnh, x\u1ec9 d\u1ec5 bong, \u0111a v\u1ecb tr\u00ed<br \/>\n  &#8211; -17: Rutile c\u1ea3i ti\u1ebfn, h\u1ea1t m\u1ecbn, b\u1ec1 m\u1eb7t \u0111\u1eb9p, AC\/DC+<\/p>\n<h2 id=\"toc-2-chon-ma-que-han-phu-hop-voi-mac-inox-va-ung-dung\"><span class=\"ez-toc-section\" id=\"Chon_ma_que_han_phu_hop_voi_mac_Inox_va_ung_dung\"><\/span>Ch\u1ecdn m\u00e3 que h\u00e0n ph\u00f9 h\u1ee3p v\u1edbi m\u00e1c Inox v\u00e0 \u1ee9ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304\/304L: E308L-16\/-17 (ph\u1ed5 bi\u1ebfn nh\u1ea5t)<br \/>\n&#8211; 316\/316L (m\u00f4i tr\u01b0\u1eddng clorua, n\u01b0\u1edbc bi\u1ec3n): E316L-16<br \/>\n&#8211; 321\/347 (th\u00e9p \u1ed5n \u0111\u1ecbnh titan\/niobi): E347-16<br \/>\n&#8211; Inox\u2013th\u00e9p c\u00e1c-bon\/d\u1ecb v\u1eadt li\u1ec7u: E309L-16 (\u0111\u1ec7m chuy\u1ec3n, clad) ho\u1eb7c E312-16 (kh\u00f3 h\u00e0n\/kh\u00f4ng r\u00f5 m\u00e1c)<br \/>\n&#8211; Duplex 2205: E2209-16<br \/>\n&#8211; Martensitic 410\/420: E410NiMo-15 (c\u1ea7n ti\u1ec1n nhi\u1ec7t v\u00e0 ki\u1ec3m so\u00e1t ngu\u1ed9i)<br \/>\nG\u1ee3i \u00fd nhanh:<br \/>\n&#8211; \u01afu ti\u00ean \u201cL\u201d \u0111\u1ec3 ch\u1ed1ng nh\u1ea1y c\u1ea3m h\u00f3a \u1edf v\u00f9ng nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng (HAZ).<br \/>\n&#8211; Khi h\u00e0n Inox v\u1edbi th\u00e9p \u0111en, ch\u1ecdn E309L tr\u01b0\u1edbc; n\u1ebfu n\u1ec1n kh\u00f3 \u0111o\u00e1n, E312 an to\u00e0n h\u01a1n nh\u1edd h\u00e0m l\u01b0\u1ee3ng ferrite cao, ch\u1ed1ng n\u1ee9t.<\/p>\n<h2 id=\"toc-3-duong-kinh-que-chieu-day-vat-lieu-va-cuong-do-dong\"><span class=\"ez-toc-section\" id=\"Duong_kinh_que_chieu_day_vat_lieu_va_cuong_do_dong\"><\/span>\u0110\u01b0\u1eddng k\u00ednh que, chi\u1ec1u d\u00e0y v\u1eadt li\u1ec7u v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh que theo chi\u1ec1u d\u00e0y:<br \/>\n  &#8211; 2.0 mm: t\u1ea5m 1.5\u20132.5 mm<br \/>\n  &#8211; 2.5 mm: 2\u20134 mm<br \/>\n  &#8211; 3.2 mm: 4\u20138 mm<br \/>\n  &#8211; 4.0 mm: 8\u201312 mm<br \/>\n  &#8211; 5.0 mm: >12 mm<br \/>\n&#8211; D\u00f2ng \u0111i\u1ec7n tham kh\u1ea3o (DC+, h\u1ed3 quang ng\u1eafn):<br \/>\n  &#8211; 2.0 mm: 35\u201355 A<br \/>\n  &#8211; 2.5 mm: 50\u201380 A<br \/>\n  &#8211; 3.2 mm: 80\u2013110 A<br \/>\n  &#8211; 4.0 mm: 110\u2013160 A<br \/>\n  &#8211; 5.0 mm: 150\u2013220 A<br \/>\nL\u01b0u \u00fd:<br \/>\n&#8211; -16 ch\u1ea1y t\u1ed1t AC ho\u1eb7c DC+, -15 y\u00eau c\u1ea7u DC+.<br \/>\n&#8211; T\u1ea5m m\u1ecfng \u01b0u ti\u00ean d\u00f2ng th\u1ea5p, h\u1ea1t ng\u1eafn, m\u1ed1i h\u00e0n r\u1ea3i h\u1eb9p \u0111\u1ec3 ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng.<\/p>\n<h2 id=\"toc-4-chuan-bi-mep-han-va-han-che-nhiem-sat\"><span class=\"ez-toc-section\" id=\"Chuan_bi_mep_han_va_han_che_nhiem_sat\"><\/span>Chu\u1ea9n b\u1ecb m\u00e9p h\u00e0n v\u00e0 h\u1ea1n ch\u1ebf nhi\u1ec5m s\u1eaft<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; L\u00e0m s\u1ea1ch 20\u201330 mm xung quanh m\u00e9p h\u00e0n: t\u1ea9y d\u1ea7u m\u1ee1 (acetone), lo\u1ea1i b\u1ecf g\u1ec9\/oxy h\u00f3a b\u1eb1ng b\u00e0n ch\u1ea3i Inox ri\u00eang, \u0111\u0129a flap Inox (kh\u00f4ng d\u00f9ng chung v\u1edbi th\u00e9p \u0111en).<br \/>\n&#8211; Gia c\u00f4ng v\u00e1t m\u00e9p \u0111\u00fang chu\u1ea9n (V, Y, K) t\u00f9y chi\u1ec1u d\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ng\u1ea5u.<br \/>\n&#8211; K\u1eb9p ch\u1eb7t, ch\u1eeba khe h\u1edf h\u1ee3p l\u00fd (open root): 1\u20132 mm cho t\u1ea5m 3\u20136 mm.<br \/>\n&#8211; Kh\u00f4ng d\u00f9ng b\u00faa th\u00e9p \u0111en g\u00f5 x\u1ec9 tr\u00ean Inox; d\u00f9ng b\u00faa v\u00e0 b\u00e0n ch\u1ea3i d\u00e0nh ri\u00eang cho Inox.<\/p>\n<h2 id=\"toc-5-ky-thuat-thao-tac-co-ban-cho-nguoi-moi\"><span class=\"ez-toc-section\" id=\"Ky_thuat_thao_tac_co_ban_cho_nguoi_moi\"><\/span>K\u1ef9 thu\u1eadt thao t\u00e1c c\u01a1 b\u1ea3n cho ng\u01b0\u1eddi m\u1edbi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Goc_que_chieu_dai_ho_quang_toc_do\"><\/span>G\u00f3c que, chi\u1ec1u d\u00e0i h\u1ed3 quang, t\u1ed1c \u0111\u1ed9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Gi\u1eef h\u1ed3 quang ng\u1eafn ~0.5\u20131.0 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh que \u0111\u1ec3 gi\u1ea3m h\u00fat kh\u00ed v\u00e0 b\u1eafn t\u00f3e.<br \/>\n&#8211; G\u00f3c \u0111\u1ea9y 5\u201315\u00b0 theo h\u01b0\u1edbng h\u00e0n v\u1edbi v\u1ecb tr\u00ed b\u1eb1ng; \u0111\u1ee9ng d\u1ecdc ch\u1ecdn g\u00f3c 0\u201310\u00b0.<br \/>\n&#8211; \u01afu ti\u00ean \u0111\u01b0\u1eddng h\u00e0n \u201cstringer bead\u201d (r\u1ea3i th\u1eb3ng), h\u1ea1n ch\u1ebf \u201cweave\u201d. N\u1ebfu ph\u1ea3i v\u00ea, bi\u00ean \u0111\u1ed9 kh\u00f4ng v\u01b0\u1ee3t 2.5\u20133 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh que, d\u1eebng ng\u1eafn \u1edf m\u00e9p \u0111\u1ec3 ch\u1ed1ng l\u1eb9m (undercut).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Trinh_tu_lop_va_ve_sinh_giua_cac_luot\"><\/span>Tr\u00ecnh t\u1ef1 l\u1edbp v\u00e0 v\u1ec7 sinh gi\u1eefa c\u00e1c l\u01b0\u1ee3t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Sau m\u1ed7i l\u01b0\u1ee3t, g\u00f5 x\u1ec9 s\u1ea1ch v\u00e0 ch\u1ea3i b\u1eb1ng b\u00e0n ch\u1ea3i Inox; lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n v\u1ebft x\u1ec9\/x\u1ec9 k\u1eb9t \u0111\u1ec3 tr\u00e1nh r\u1ed7 v\u00e0 n\u1ee9t.<br \/>\n&#8211; Gi\u1eef nhi\u1ec7t \u0111\u1ed9 gi\u1eefa c\u00e1c l\u1edbp (interpass) cho Inox austenit \u2264150\u00b0C \u0111\u1ec3 h\u1ea1n ch\u1ebf nh\u1ea1y c\u1ea3m h\u00f3a v\u00e0 bi\u1ebfn m\u00e0u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_tri_han\"><\/span>V\u1ecb tr\u00ed h\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; B\u1eb1ng (1G\/1F): d\u1ec5 ki\u1ec3m so\u00e1t, ch\u1ecdn d\u00f2ng trung b\u00ecnh.<br \/>\n&#8211; \u0110\u1ee9ng (3G\/3F): d\u00f9ng -15 ho\u1eb7c -16, gi\u1ea3m d\u00f2ng 5\u201310%, h\u00e0n h\u01b0\u1edbng l\u00ean (vertical up) v\u1edbi r\u1ea3i th\u1eb3ng ho\u1eb7c weave h\u1eb9p d\u1ea1ng \u201ctri-tam gi\u00e1c\u201d nh\u1ecf.<br \/>\n&#8211; Tr\u1ea7n (4G\/4F): gi\u1ea3m d\u00f2ng th\u00eam 10\u201315%, h\u1ed3 quang th\u1eadt ng\u1eafn, t\u1ea1m d\u1eebng ng\u1eafn \u1edf m\u00e9p.<\/p>\n<h2 id=\"toc-6-kiem-soat-nhiet-de-tranh-nut-nong-va-bien-dang\"><span class=\"ez-toc-section\" id=\"Kiem_soat_nhiet_de_tranh_nut_nong_va_bien_dang\"><\/span>Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ec3 tr\u00e1nh n\u1ee9t n\u00f3ng v\u00e0 bi\u1ebfn d\u1ea1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u00f9ng que \u0111\u00fang c\u1ea5p \u201cL\u201d v\u00e0 m\u00e1c ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t FN (Ferrite Number) kho\u1ea3ng 3\u201310 trong kim lo\u1ea1i m\u1ed1i h\u00e0n austenit, gi\u00fap ch\u1ed1ng n\u1ee9t n\u00f3ng.<br \/>\n&#8211; H\u1ea1n ch\u1ebf nhi\u1ec7t v\u00e0o: d\u00f9ng stringer bead, k\u1eb9p t\u1ea3n nhi\u1ec7t khi c\u1ea7n, h\u00e0n \u0111\u1ed1i x\u1ee9ng, k\u1ef9 thu\u1eadt back-step cho k\u1ebft c\u1ea5u m\u1ecfng.<br \/>\n&#8211; Kh\u00f4ng ti\u1ec1n nhi\u1ec7t v\u1edbi austenit 304\/316; v\u1edbi martensit 410\/420 c\u1ea7n ti\u1ec1n nhi\u1ec7t 150\u2013260\u00b0C v\u00e0 ki\u1ec3m so\u00e1t ngu\u1ed9i ch\u1eadm. Ferrit 430 th\u01b0\u1eddng c\u1ea7n nhi\u1ec7t v\u00e0o th\u1ea5p, c\u00f3 th\u1ec3 \u1ea5m v\u1eadt li\u1ec7u 50\u2013100\u00b0C \u0111\u1ec3 gi\u1ea3m ch\u00eanh nhi\u1ec7t.<br \/>\n&#8211; Duplex 2205: ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o v\u1eeba ph\u1ea3i, gi\u1eef interpass th\u01b0\u1eddng \u2264100\u2013150\u00b0C theo khuy\u1ebfn ngh\u1ecb nh\u00e0 s\u1ea3n xu\u1ea5t que.<\/p>\n<h2 id=\"toc-7-han-mot-phia-ong-va-bien-phap-ho-tro-chan-moi\"><span class=\"ez-toc-section\" id=\"Han_mot_phia_ong_va_bien_phap_ho_tro_chan_moi\"><\/span>H\u00e0n m\u1ed9t ph\u00eda, \u1ed1ng v\u00e0 bi\u1ec7n ph\u00e1p h\u1ed7 tr\u1ee3 ch\u00e2n m\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; M\u1ed1i h\u00e0n m\u1ed9t ph\u00eda: d\u00f9ng backing b\u1eb1ng g\u1ed1m\/\u0111\u1ed3ng ho\u1eb7c d\u1ea3i backing Inox; c\u00f3 th\u1ec3 \u0111\u1ec7m b\u1ed9t g\u1ed1m cho \u0111\u01b0\u1eddng \u1ed1ng.<br \/>\n&#8211; V\u1edbi \u0111\u01b0\u1eddng \u1ed1ng \u0111\u00f2i h\u1ecfi b\u1ec1 m\u1eb7t trong s\u1ea1ch \u0103n m\u00f2n th\u1ea5p: \u01b0u ti\u00ean l\u00e0m ch\u00e2n b\u1eb1ng TIG v\u1edbi kh\u00ed l\u00f3t (back purging) r\u1ed3i \u0111\u1eafp SMAW; n\u1ebfu ch\u1ec9 SMAW, c\u00e2n nh\u1eafc backing ring v\u00e0 v\u1ec7 sinh k\u1ef9.<br \/>\n&#8211; V\u00e9t ch\u00e2n (back-gouging) r\u1ed3i h\u00e0n b\u00f9 ph\u00eda sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ng\u1ea5u xuy\u00ean v\u00e0 s\u1ea1ch x\u1ec9 cho m\u1ed1i xuy\u00ean t\u1ea5m.<\/p>\n<h2 id=\"toc-8-han-di-vat-lieu-inox-thep-cac-bon-meo-thuc-chien\"><span class=\"ez-toc-section\" id=\"Han_di_vat_lieu_Inox_%E2%80%93_thep_cac-bon_meo_thuc_chien\"><\/span>H\u00e0n d\u1ecb v\u1eadt li\u1ec7u Inox \u2013 th\u00e9p c\u00e1c-bon: m\u1eb9o th\u1ef1c chi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u00f9ng E309L-16 \u0111\u1ec3 gi\u1ea3m pha trung gian gi\u00f2n; h\u00e0n \u201cbuttering\u201d l\u1edbp \u0111\u1ec7m E309L l\u00ean th\u00e9p \u0111en tr\u01b0\u1edbc, sau \u0111\u00f3 n\u1ed1i v\u1edbi Inox.<br \/>\n&#8211; Khi n\u1ec1n th\u00e9p kh\u00f4ng r\u00f5 m\u00e1c ho\u1eb7c c\u00f3 h\u00e0m l\u01b0\u1ee3ng C cao, d\u00f9ng E312-16 cho kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t t\u1ed1t h\u01a1n.<br \/>\n&#8211; Gi\u1eef nhi\u1ec7t v\u00e0o v\u1eeba ph\u1ea3i, chu\u1ed7i h\u1ea1t ng\u1eafn, l\u00e0m s\u1ea1ch gi\u1eefa c\u00e1c l\u01b0\u1ee3t.<\/p>\n<h2 id=\"toc-9-xu-ly-sau-han-de-dat-be-mat-chong-an-mon\"><span class=\"ez-toc-section\" id=\"Xu_ly_sau_han_de_dat_be_mat_chong_an_mon\"><\/span>X\u1eed l\u00fd sau h\u00e0n \u0111\u1ec3 \u0111\u1ea1t b\u1ec1 m\u1eb7t ch\u1ed1ng \u0103n m\u00f2n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Lo\u1ea1i b\u1ecf x\u1ec9 v\u00e0 v\u1ea3y \u00f4-x\u00edt; ch\u1ea3i Inox chuy\u00ean d\u1ee5ng.<br \/>\n&#8211; T\u1ea9y m\u1ed1i h\u00e0n, kh\u1eed m\u00e0u nhi\u1ec7t b\u1eb1ng gel pickling (h\u1ed7n h\u1ee3p axit ph\u00f9 h\u1ee3p) ho\u1eb7c dung d\u1ecbch passivation d\u1ef1a tr\u00ean nitric\/citric theo h\u01b0\u1edbng d\u1eabn an to\u00e0n.<br \/>\n&#8211; R\u1eeda s\u1ea1ch, trung h\u00f2a, s\u1ea5y kh\u00f4. Kh\u00f4ng \u0111\u1ec3 s\u1eaft ngo\u1ea1i lai l\u01b0u tr\u00ean b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-10-loi-thuong-gap-va-cach-khac-phuc\"><span class=\"ez-toc-section\" id=\"Loi_thuong_gap_va_cach_khac_phuc\"><\/span>L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; R\u1ed7 kh\u00ed: h\u1ed3 quang qu\u00e1 d\u00e0i, que \u1ea9m, b\u1ec1 m\u1eb7t b\u1ea9n. Kh\u1eafc ph\u1ee5c: s\u1ea5y que, l\u00e0m s\u1ea1ch, r\u00fat ng\u1eafn h\u1ed3 quang.<br \/>\n&#8211; L\u1eb9m m\u00e9p (undercut): d\u00f2ng cao, t\u1ed1c \u0111\u1ed9 nhanh, weave r\u1ed9ng. Kh\u1eafc ph\u1ee5c: gi\u1ea3m d\u00f2ng, d\u1eebng nh\u1eb9 \u1edf m\u00e9p, d\u00f9ng stringer.<br \/>\n&#8211; Thi\u1ebfu ng\u1ea5u: d\u00f2ng th\u1ea5p, r\u00e3nh kh\u00f4ng \u0111\u1ee7. Kh\u1eafc ph\u1ee5c: t\u0103ng d\u00f2ng trong gi\u1edbi h\u1ea1n, v\u00e1t m\u00e9p \u0111\u00fang, \u0111i\u1ec1u ch\u1ec9nh g\u00f3c.<br \/>\n&#8211; N\u1ee9t n\u00f3ng: ch\u1ecdn sai m\u00e1c\/kh\u00f4ng c\u00f3 \u201cL\u201d, nhi\u1ec7t v\u00e0o qu\u00e1 cao. Kh\u1eafc ph\u1ee5c: d\u00f9ng E308L\/E316L \u0111\u00fang m\u00e1c, ki\u1ec3m so\u00e1t interpass, chu\u1ed7i h\u1ea1t ng\u1eafn.<br \/>\n&#8211; Nhi\u1ec5m b\u1ea9n s\u1eaft g\u00e2y r\u1ec9 n\u00e2u: d\u1ee5ng c\u1ee5 th\u00e9p \u0111en, x\u1ec9 s\u00f3t. Kh\u1eafc ph\u1ee5c: t\u00e1ch d\u1ee5ng c\u1ee5 Inox, pickling\/passivation.<\/p>\n<h2 id=\"toc-11-bao-quan-va-say-que-han-inox\"><span class=\"ez-toc-section\" id=\"Bao_quan_va_say_que_han_Inox\"><\/span>B\u1ea3o qu\u1ea3n v\u00e0 s\u1ea5y que h\u00e0n Inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; B\u1ea3o qu\u1ea3n kh\u00f4, k\u00edn \u1ea9m. L\u1ea5y \u0111\u1ebfn \u0111\u00e2u m\u1edf \u0111\u1ebfn \u0111\u00f3.<br \/>\n&#8211; Rutile -16\/-17: gi\u1eef kh\u00f4; n\u1ebfu \u1ea9m, s\u1ea5y 150\u2013200\u00b0C trong 1\u20132 gi\u1edd theo khuy\u1ebfn ngh\u1ecb nh\u00e0 s\u1ea3n xu\u1ea5t.<br \/>\n&#8211; Basic -15: s\u1ea5y ho\u00e0n nguy\u00ean th\u01b0\u1eddng 300\u2013350\u00b0C trong 1\u20132 gi\u1edd; b\u1ea3o qu\u1ea3n trong t\u1ee7 100\u2013150\u00b0C. Lu\u00f4n tham chi\u1ebfu datasheet c\u1ee7a h\u00e3ng.<\/p>\n<h2 id=\"toc-12-an-toan-lao-dong-khi-han-inox\"><span class=\"ez-toc-section\" id=\"An_toan_lao_dong_khi_han_Inox\"><\/span>An to\u00e0n lao \u0111\u1ed9ng khi h\u00e0n Inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Kh\u00f3i h\u00e0n Inox c\u00f3 th\u1ec3 ch\u1ee9a Cr(VI). D\u00f9ng h\u00fat c\u1ee5c b\u1ed9\/\u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, kh\u1ea9u trang l\u1ecdc h\u1ea1t P100\/P3 \u0111\u1ea1t chu\u1ea9n, k\u00ednh l\u1ecdc s\u1ed1 10\u201312, g\u0103ng v\u00e0 \u00e1o b\u1ea3o h\u1ed9 ch\u1ecbu nhi\u1ec7t.<br \/>\n&#8211; L\u00e0m vi\u1ec7c n\u01a1i th\u00f4ng tho\u00e1ng; tu\u00e2n th\u1ee7 SDS c\u1ee7a que h\u00e0n v\u00e0 h\u00f3a ch\u1ea5t t\u1ea9y m\u1ed1i h\u00e0n.<\/p>\n<h2 id=\"toc-13-checklist-8-buoc-han-que-inox-cho-nguoi-moi\"><span class=\"ez-toc-section\" id=\"Checklist_8_buoc_han_que_Inox_cho_nguoi_moi\"><\/span>Checklist 8 b\u01b0\u1edbc h\u00e0n que Inox cho ng\u01b0\u1eddi m\u1edbi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1) X\u00e1c \u0111\u1ecbnh m\u00e1c Inox v\u00e0 ki\u1ec3u li\u00ean k\u1ebft; 2) Ch\u1ecdn \u0111\u00fang que (E308L-16, E316L-16, E309L-16\u2026); 3) Ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh que theo b\u1ec1 d\u00e0y; 4) C\u00e0i \u0111\u1eb7t d\u00f2ng v\u00e0 c\u1ef1c DC+ (ho\u1eb7c AC v\u1edbi -16); 5) L\u00e0m s\u1ea1ch v\u00e0 ch\u1ed1ng nhi\u1ec5m s\u1eaft; 6) H\u00e0n stringer bead, h\u1ed3 quang ng\u1eafn, ki\u1ec3m so\u00e1t interpass \u2264150\u00b0C; 7) L\u00e0m s\u1ea1ch x\u1ec9 gi\u1eefa c\u00e1c l\u1edbp, ki\u1ec3m tra khuy\u1ebft t\u1eadt; 8) T\u1ea9y, th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1ec1 m\u1eb7t sau h\u00e0n.<\/p>\n<h2 id=\"toc-14-cau-hoi-nhanh\"><span class=\"ez-toc-section\" id=\"Cau_hoi_nhanh\"><\/span>C\u00e2u h\u1ecfi nhanh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u1ea5m m\u1ecfng <2 mm c\u00f3 n\u00ean h\u00e0n que? C\u00f3 th\u1ec3 nh\u01b0ng kh\u00f3 ki\u1ec3m so\u00e1t ch\u00e1y th\u1ee7ng; c\u00e2n nh\u1eafc TIG ho\u1eb7c MIG-pulse cho b\u1ec1 m\u1eb7t \u0111\u1eb9p v\u00e0 bi\u1ebfn d\u1ea1ng th\u1ea5p.\n- V\u00ec sao m\u1ed1i h\u00e0n Inox \u0111\u1ed5i m\u00e0u xanh-n\u00e2u? Nhi\u1ec7t v\u00e0o cao ho\u1eb7c v\u1ec7 sinh k\u00e9m; c\u1ea7n gi\u1ea3m d\u00f2ng\/t\u1ed1c \u0111\u1ed9, l\u00e0m s\u1ea1ch v\u00e0 passivation.\n- D\u00f9ng AC c\u00f3 \u0111\u01b0\u1ee3c kh\u00f4ng? C\u00f3, v\u1edbi que -16\/-17; tuy nhi\u00ean DC+ th\u01b0\u1eddng cho h\u1ed3 quang \u1ed5n \u0111\u1ecbnh v\u00e0 ng\u1ea5u t\u1ed1t h\u01a1n.\n\n\n\n<h2 id=\"toc-15-nguon-tham-khao\"><span class=\"ez-toc-section\" id=\"Nguon_tham_khao\"><\/span>Ngu\u1ed3n tham kh\u1ea3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; AWS A5.4\/A5.4M: Specification for Stainless Steel Electrodes for Shielded Metal Arc Welding. American Welding Society. https:\/\/pubs.aws.org<br \/>\n&#8211; Lincoln Electric. Stainless steel electrode guides (E308L-16, E309L-16, E316L-16). https:\/\/www.lincolnelectric.com<br \/>\n&#8211; ESAB. Stainless SMAW electrodes technical data and welding guidelines. https:\/\/www.esab.com<br \/>\n&#8211; TWI (The Welding Institute). Guidance on welding stainless steels and avoidance of cracking. https:\/\/www.twi-global.com<br \/>\n&#8211; NIOSH\/OSHA. Chromium (VI) in welding fume \u2013 controls and PPE. https:\/\/www.osha.gov\/hexavalent-chromium<\/p>\n<h2 id=\"toc-16-ket-luan\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 h\u00e0n que Inox hi\u1ec7u qu\u1ea3, ng\u01b0\u1eddi m\u1edbi c\u1ea7n ba y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i: ch\u1ecdn \u0111\u00fang que theo m\u00e1c v\u00e0 \u1ee9ng d\u1ee5ng (\u01b0u ti\u00ean E308L\/E316L, E309L\/E312 cho d\u1ecb v\u1eadt li\u1ec7u), c\u00e0i \u0111\u1eb7t tham s\u1ed1 ph\u00f9 h\u1ee3p (\u0111\u01b0\u1eddng k\u00ednh\u2013d\u00f2ng\u2013c\u1ef1c t\u00ednh) v\u00e0 thao t\u00e1c chu\u1ea9n (h\u1ed3 quang ng\u1eafn, stringer bead, ki\u1ec3m so\u00e1t nhi\u1ec7t\/interpass). K\u1ebft h\u1ee3p chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t nghi\u00eam ng\u1eb7t, v\u1ec7 sinh gi\u1eefa c\u00e1c l\u1edbp v\u00e0 x\u1eed l\u00fd sau h\u00e0n s\u1ebd gi\u00fap m\u1ed1i h\u00e0n \u0111\u1ea1t c\u01a1 t\u00ednh t\u1ed1t, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 th\u1ea9m m\u1ef9 cao. C\u1ea7n th\u00eam b\u1ea3ng th\u00f4ng s\u1ed1 theo m\u00e1c c\u1ee5 th\u1ec3 ho\u1eb7c t\u01b0 v\u1ea5n ch\u1ecdn que theo c\u00f4ng tr\u00ecnh t\u1ea1i Vi\u1ec7t Nam? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u00e0 nh\u1eadn b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn ch\u1ecdn \u0111\u00fang m\u00e3 que h\u00e0n Inox (E308L-16, E316L-16, E309L-16&#8230;), c\u1ee1 que, d\u00f2ng \u0111i\u1ec7n, k\u1ef9 thu\u1eadt thao t\u00e1c v\u00e0 x\u1eed l\u00fd l\u1ed7i th\u1ef1c t\u1ebf cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/p>\n","protected":false},"author":7,"featured_media":1058,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2300","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\/2300","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=2300"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2300\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1058"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}