{"id":2589,"date":"2026-09-19T12:34:21","date_gmt":"2026-09-19T05:34:21","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/"},"modified":"2026-09-19T12:34:21","modified_gmt":"2026-09-19T05:34:21","slug":"inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/","title":{"rendered":"Inox cu\u1ed9n No.1, 2B, BA: Kh\u00e1c bi\u1ec7t k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch ch\u1ecdn \u0111\u00fang"},"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;2589&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;Inox cu\u1ed9n No.1, 2B, BA: Kh\u00e1c bi\u1ec7t k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch ch\u1ecdn \u0111\u00fang&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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Tom_luoc_nhanh_No1_%E2%80%93_2B_%E2%80%93_BA_khac_nhau_o_dau\" >T\u00f3m l\u01b0\u1ee3c nhanh: No.1 \u2013 2B \u2013 BA kh\u00e1c nhau \u1edf \u0111\u00e2u?<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Quy_trinh_san_xuat_va_tac_dong_den_tinh_chat_vat_lieu\" >Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/inoxcuongthinh.com\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#No1_%E2%80%93_Can_nong_u_tay_gi\" >No.1 \u2013 C\u00e1n n\u00f3ng, \u1ee7, t\u1ea9y g\u1ec9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#2B_%E2%80%93_Can_nguoi_u_tay_gi_can_da\" >2B \u2013 C\u00e1n ngu\u1ed9i, \u1ee7, t\u1ea9y g\u1ec9, c\u00e1n da<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#BA_%E2%80%93_Bright_Annealed_u_bong_trong_khi_bao_ve\" >BA \u2013 Bright Annealed (\u1ee7 b\u00f3ng trong kh\u00ed b\u1ea3o v\u1ec7)<\/a><\/li><\/ul><\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Thong_so_ky_thuat_can_biet_khi_dat_mua\" >Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n bi\u1ebft khi \u0111\u1eb7t mua<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Kich_thuoc_tieu_chuan\" >K\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Be_mat_%E2%80%93_do_nham_%E2%80%93_sach_be_mat\" >B\u1ec1 m\u1eb7t \u2013 \u0111\u1ed9 nh\u00e1m \u2013 s\u1ea1ch b\u1ec1 m\u1eb7t<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Co_tinh_va_hancatgia_cong\" >C\u01a1 t\u00ednh v\u00e0 h\u00e0n\/c\u1eaft\/gia c\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Mac_thep_pho_bien_tai_Viet_Nam\" >M\u00e1c th\u00e9p ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<\/a><\/li><\/ul><\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Ung_dung_dien_hinh_theo_be_mat\" >\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh theo b\u1ec1 m\u1eb7t<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Cach_chon_nhanh_theo_yeu_cau_ky_thuat_%E2%80%93_tham_my_%E2%80%93_chi_phi\" >C\u00e1ch ch\u1ecdn nhanh theo y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u2013 th\u1ea9m m\u1ef9 \u2013 chi ph\u00ed<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Tieu_chuan_va_tai_lieu_ky_thuat_tham_chieu\" >Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt tham chi\u1ebfu<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Kiem_tra_chat_luong_khi_nhan_cuon_Checklist_thuc_te\" >Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng khi nh\u1eadn cu\u1ed9n (Checklist th\u1ef1c t\u1ebf)<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Bao_quan_va_gia_cong_luu_y_de_giu_be_mat_chuan\" >B\u1ea3o qu\u1ea3n v\u00e0 gia c\u00f4ng: l\u01b0u \u00fd \u0111\u1ec3 gi\u1eef b\u1ec1 m\u1eb7t chu\u1ea9n<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Cau_hoi_thuong_gap\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/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\/inox-cuon-no-1-2b-ba-khac-biet-ky-thuat-va-cach-chon-dung\/#Ket_luan_Chon_dung_be_mat_de_toi_uu_chat_luong_va_chi_phi\" >K\u1ebft lu\u1eadn: Ch\u1ecdn \u0111\u00fang b\u1ec1 m\u1eb7t \u0111\u1ec3 t\u1ed1i \u01b0u ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<\/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-tom-luoc-nhanh-no1-2b-ba-khac-nhau-o-dau\">T\u00f3m l\u01b0\u1ee3c nhanh: No.1 \u2013 2B \u2013 BA kh\u00e1c nhau \u1edf \u0111\u00e2u?<\/a><\/li>\n<li><a href=\"#toc-1-quy-trinh-san-xuat-va-tac-dong-den-tinh-chat-vat-l\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u<\/a><\/li>\n<li><a href=\"#toc-2-thong-so-ky-thuat-can-biet-khi-dat-mua\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n bi\u1ebft khi \u0111\u1eb7t mua<\/a><\/li>\n<li><a href=\"#toc-3-ung-dung-dien-hinh-theo-be-mat\">\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh theo b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-4-cach-chon-nhanh-theo-yeu-cau-ky-thuat-tham-my-chi-\">C\u00e1ch ch\u1ecdn nhanh theo y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u2013 th\u1ea9m m\u1ef9 \u2013 chi ph\u00ed<\/a><\/li>\n<li><a href=\"#toc-5-tieu-chuan-va-tai-lieu-ky-thuat-tham-chieu\">Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt tham chi\u1ebfu<\/a><\/li>\n<li><a href=\"#toc-6-kiem-tra-chat-luong-khi-nhan-cuon-checklist-thuc-t\">Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng khi nh\u1eadn cu\u1ed9n (Checklist th\u1ef1c t\u1ebf)<\/a><\/li>\n<li><a href=\"#toc-7-bao-quan-va-gia-cong-luu-y-de-giu-be-mat-chuan\">B\u1ea3o qu\u1ea3n v\u00e0 gia c\u00f4ng: l\u01b0u \u00fd \u0111\u1ec3 gi\u1eef b\u1ec1 m\u1eb7t chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-8-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan-chon-dung-be-mat-de-toi-uu-chat-luong-va-\">K\u1ebft lu\u1eadn: Ch\u1ecdn \u0111\u00fang b\u1ec1 m\u1eb7t \u0111\u1ec3 t\u1ed1i \u01b0u ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox cu\u1ed9n l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ed1t l\u00f5i c\u1ee7a ng\u00e0nh inox, song h\u00e0nh v\u1edbi t\u1ea5m, \u1ed1ng, h\u1ed9p v\u00e0 thanh \u0111\u1eb7c. Trong nh\u00f3m cu\u1ed9n, ba b\u1ec1 m\u1eb7t ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 No.1 (c\u00e1n n\u00f3ng, \u1ee7, t\u1ea9y g\u1ec9), 2B (c\u00e1n ngu\u1ed9i, \u1ee7, da), v\u00e0 BA (bright annealed \u2013 \u1ee7 b\u00f3ng). Hi\u1ec3u \u0111\u00fang s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng, tu\u1ed5i th\u1ecd, t\u00ednh th\u1ea9m m\u1ef9 v\u00e0 chi ph\u00ed d\u1ef1 \u00e1n.<\/p>\n<h2 id=\"toc-0-tom-luoc-nhanh-no1-2b-ba-khac-nhau-o-dau\"><span class=\"ez-toc-section\" id=\"Tom_luoc_nhanh_No1_%E2%80%93_2B_%E2%80%93_BA_khac_nhau_o_dau\"><\/span>T\u00f3m l\u01b0\u1ee3c nhanh: No.1 \u2013 2B \u2013 BA kh\u00e1c nhau \u1edf \u0111\u00e2u?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u00f4ng ngh\u1ec7:<br \/>\n  &#8211; No.1: C\u00e1n n\u00f3ng \u2192 \u1ee7 \u2192 t\u1ea9y g\u1ec9\/shot blast. B\u1ec1 m\u1eb7t nh\u00e1m, m\u1edd x\u00e1m.<br \/>\n  &#8211; 2B: C\u00e1n ngu\u1ed9i \u2192 \u1ee7 \u2192 t\u1ea9y g\u1ec9 \u2192 c\u00e1n da (skin-pass). B\u1ec1 m\u1eb7t m\u1ecbn, x\u00e1m s\u00e1ng.<br \/>\n  &#8211; BA: C\u00e1n ngu\u1ed9i \u2192 \u1ee7 trong kh\u00ed b\u1ea3o v\u1ec7 (H2\/N2) \u2192 b\u1ec1 m\u1eb7t b\u00f3ng g\u01b0\u01a1ng, kh\u00f4ng t\u1ea9y g\u1ec9.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y \u0111i\u1ec3n h\u00ecnh:<br \/>\n  &#8211; No.1: ~2.0\u201314 mm (c\u00f3 th\u1ec3 d\u00e0y h\u01a1n t\u00f9y nh\u00e0 m\u00e1y).<br \/>\n  &#8211; 2B: ~0.30\u20133.0 mm (ph\u1ed5 bi\u1ebfn 0.5\u20132.0 mm).<br \/>\n  &#8211; BA: ~0.30\u20132.0 mm (ph\u1ed5 bi\u1ebfn 0.3\u20131.5 mm).<br \/>\n&#8211; \u0110\u1ed9 nh\u00e1m (Ra tham kh\u1ea3o):<br \/>\n  &#8211; No.1: kho\u1ea3ng 1.0\u20135.0 \u03bcm.<br \/>\n  &#8211; 2B: kho\u1ea3ng 0.10\u20130.30 \u03bcm.<br \/>\n  &#8211; BA: kho\u1ea3ng \u22640.05 \u03bcm.<br \/>\n&#8211; C\u01a1 t\u00ednh &#038; dung sai:<br \/>\n  &#8211; 2B\/BA c\u00f3 dung sai \u0111\u1ed9 d\u00e0y, \u0111\u1ed9 ph\u1eb3ng ch\u1eb7t ch\u1ebd h\u01a1n No.1; \u1ee9ng x\u1eed bi\u1ebfn d\u1ea1ng (u\u1ed1n\/d\u1eadp) \u1ed5n \u0111\u1ecbnh h\u01a1n.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng n\u1ed5i b\u1eadt:<br \/>\n  &#8211; No.1: b\u1ed3n b\u1ec3 c\u00f4ng nghi\u1ec7p d\u00e0y, k\u1ebft c\u1ea5u, n\u1eafp b\u00edch, s\u00e0n, chi ti\u1ebft ch\u1ecbu l\u1ef1c\/\u0103n m\u00f2n.<br \/>\n  &#8211; 2B: v\u1ecf t\u1ee7 \u0111i\u1ec7n, gia c\u00f4ng c\u01a1 kh\u00ed t\u1ea5m, thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m, d\u1eadp\/\u0111\u1ed9t\/ch\u1ea5n.<br \/>\n  &#8211; BA: thang m\u00e1y, n\u1ed9i th\u1ea5t trang tr\u00ed, \u0111\u1ed3 gia d\u1ee5ng, \u1ed1ng trang tr\u00ed, chi ti\u1ebft y\u00eau c\u1ea7u b\u00f3ng g\u01b0\u01a1ng.<br \/>\n&#8211; Chi ph\u00ed t\u01b0\u01a1ng \u0111\u1ed1i (c\u00f9ng m\u00e1c): No.1 < 2B < BA.\n\n\n\n<h2 id=\"toc-1-quy-trinh-san-xuat-va-tac-dong-den-tinh-chat-vat-l\"><span class=\"ez-toc-section\" id=\"Quy_trinh_san_xuat_va_tac_dong_den_tinh_chat_vat_lieu\"><\/span>Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"No1_%E2%80%93_Can_nong_u_tay_gi\"><\/span>No.1 \u2013 C\u00e1n n\u00f3ng, \u1ee7, t\u1ea9y g\u1ec9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ph\u00f4i \u0111\u01b0\u1ee3c c\u00e1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao, h\u00ecnh th\u00e0nh l\u1edbp \u00f4x\u00edt (scale). Sau \u0111\u00f3 \u1ee7 v\u00e0 t\u1ea9y g\u1ec9\/shot blast \u0111\u1ec3 lo\u1ea1i scale, \u0111\u1ec3 l\u1ea1i b\u1ec1 m\u1eb7t nh\u00e1m, v\u00e2n c\u00e1n r\u00f5.<br \/>\n&#8211; T\u00e1c \u0111\u1ed9ng: H\u1ea1t tinh th\u1ec3 l\u1edbn h\u01a1n, b\u1ec1 m\u1eb7t th\u00f4 h\u01a1n, dung sai \u0111\u1ed9 d\u00e0y\/\u0111\u1ed9 ph\u1eb3ng k\u00e9m ch\u1eb7t ch\u1ebd h\u01a1n c\u00e1n ngu\u1ed9i. Ph\u00f9 h\u1ee3p \u0111\u1ed9 d\u00e0y l\u1edbn, ch\u1ecbu l\u1ef1c, \u00edt y\u00eau c\u1ea7u th\u1ea9m m\u1ef9.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n li\u00ean quan: ASTM A240\/A480; JIS G4304; EN 10088-2.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2B_%E2%80%93_Can_nguoi_u_tay_gi_can_da\"><\/span>2B \u2013 C\u00e1n ngu\u1ed9i, \u1ee7, t\u1ea9y g\u1ec9, c\u00e1n da<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Xu\u1ea5t ph\u00e1t t\u1eeb d\u1ea3i No.1 \u0111\u00e3 t\u1ea9y g\u1ec9, ti\u1ebfp t\u1ee5c c\u00e1n ngu\u1ed9i \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 d\u00e0y mong mu\u1ed1n; \u1ee7 ho\u00e0n nguy\u00ean t\u1ed5 ch\u1ee9c; t\u1ea9y g\u1ec9; c\u00e1n da nh\u1eb9 (skin-pass) \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ph\u1eb3ng, \u0111\u1ed9 b\u00f3ng v\u00e0 t\u00ednh \u0111\u1ed3ng \u0111\u1ec1u.<br \/>\n&#8211; T\u00e1c \u0111\u1ed9ng: B\u1ec1 m\u1eb7t m\u1ecbn, \u0111\u1ed9 d\u00e0y\/\u0111\u1ed9 ph\u1eb3ng ch\u00ednh x\u00e1c, c\u01a1 t\u00ednh \u0111\u1ed3ng \u0111\u1ec1u. Ph\u00f9 h\u1ee3p gia c\u00f4ng d\u1eadp, ch\u1ea5n, h\u00e0n, s\u01a1n\/ph\u1ee7, \u0111\u00e1nh x\u01b0\u1edbc NO.4\/hairline.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n: ASTM A240\/A480; JIS G4305; EN 10088-2.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"BA_%E2%80%93_Bright_Annealed_u_bong_trong_khi_bao_ve\"><\/span>BA \u2013 Bright Annealed (\u1ee7 b\u00f3ng trong kh\u00ed b\u1ea3o v\u1ec7)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Sau c\u00e1n ngu\u1ed9i, d\u1ea3i \u0111\u01b0\u1ee3c \u1ee7 trong l\u00f2 k\u00edn, m\u00f4i tr\u01b0\u1eddng H2\/N2 b\u1ea3o v\u1ec7, kh\u00f4ng t\u1ea1o \u00f4x\u00edt; kh\u00f4ng c\u1ea7n t\u1ea9y g\u1ec9 sau \u1ee7.<br \/>\n&#8211; T\u00e1c \u0111\u1ed9ng: B\u1ec1 m\u1eb7t b\u00f3ng g\u01b0\u01a1ng \u0111\u1ed3ng \u0111\u1ec1u, Ra r\u1ea5t th\u1ea5p, \u00edt khuy\u1ebft t\u1eadt. L\u00fd t\u01b0\u1edfng cho \u1ee9ng d\u1ee5ng th\u1ea9m m\u1ef9 cao, y\u00eau c\u1ea7u v\u1ec7 sinh t\u1ed1t; l\u00e0 n\u1ec1n t\u1ed1t \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng l\u00ean 8K.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n: ASTM A480 \u0111\u1ecbnh ngh\u0129a ho\u00e0n thi\u1ec7n BA; tham chi\u1ebfu EN 10088-2 (2R t\u01b0\u01a1ng \u0111\u01b0\u01a1ng BA).<\/p>\n<h2 id=\"toc-2-thong-so-ky-thuat-can-biet-khi-dat-mua\"><span class=\"ez-toc-section\" id=\"Thong_so_ky_thuat_can_biet_khi_dat_mua\"><\/span>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n bi\u1ebft khi \u0111\u1eb7t mua<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Kich_thuoc_tieu_chuan\"><\/span>K\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Kh\u1ed5 r\u1ed9ng: 1000, 1219 (4 feet), 1500 mm; No.1 c\u00f3 th\u1ec3 t\u1edbi 1524 mm, 2B\/BA ph\u1ed5 bi\u1ebfn 1000\/1219\/1500 mm.<br \/>\n&#8211; \u0110\u01b0\u1eddng k\u00ednh trong (ID) cu\u1ed9n: 508 mm (20&#8243;), 610 mm (24&#8243;) t\u00f9y nh\u00e0 m\u00e1y v\u00e0 line gia c\u00f4ng.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng cu\u1ed9n: ~5\u201315 t\u1ea5n (tu\u1ef3 \u0111\u1ed9 d\u00e0y\/kh\u1ed5).<br \/>\n&#8211; Dung sai: C\u00e1n ngu\u1ed9i (2B\/BA) c\u00f3 dung sai \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ph\u1eb3ng ch\u1eb7t h\u01a1n c\u00e1n n\u00f3ng (tham chi\u1ebfu ASTM A480).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Be_mat_%E2%80%93_do_nham_%E2%80%93_sach_be_mat\"><\/span>B\u1ec1 m\u1eb7t \u2013 \u0111\u1ed9 nh\u00e1m \u2013 s\u1ea1ch b\u1ec1 m\u1eb7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; No.1: nh\u00e1m, m\u00e0u x\u00e1m \u0111\u1eadm; c\u00f3 th\u1ec3 c\u00f2n v\u1ebft t\u1ea9y g\u1ec9. B\u00e1m s\u01a1n\/ ph\u1ee7 t\u1ed1t sau t\u1ea9y d\u1ea7u\/ho\u00e1 ch\u1ea5t.<br \/>\n&#8211; 2B: m\u1ecbn, x\u00e1m s\u00e1ng; l\u00e0 n\u1ec1n chu\u1ea9n \u0111\u1ec3 \u0111\u00e1nh x\u01b0\u1edbc NO.4\/hairline.<br \/>\n&#8211; BA: b\u00f3ng nh\u01b0 g\u01b0\u01a1ng; c\u1ea7n b\u1ea3o v\u1ec7 b\u1eb1ng m\u00e0ng PE 1 ho\u1eb7c 2 m\u1eb7t \u0111\u1ec3 tr\u00e1nh tr\u1ea7y x\u01b0\u1edbc trong v\u1eadn chuy\u1ec3n\/gia c\u00f4ng.<br \/>\n&#8211; \u0110\u1ed9 nh\u00e1m th\u1ea5p (\u0111\u1eb7c bi\u1ec7t BA) gi\u00fap h\u1ea1n ch\u1ebf \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u \u0103n m\u00f2n c\u1ee5c b\u1ed9 trong m\u00f4i tr\u01b0\u1eddng s\u1ea1ch; tuy nhi\u00ean kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n ch\u1ee7 y\u1ebfu do th\u00e0nh ph\u1ea7n m\u00e1c th\u00e9p v\u00e0 t\u00ecnh tr\u1ea1ng th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1ec1 m\u1eb7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Co_tinh_va_hancatgia_cong\"><\/span>C\u01a1 t\u00ednh v\u00e0 h\u00e0n\/c\u1eaft\/gia c\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; V\u1edbi c\u00f9ng m\u00e1c (v\u00ed d\u1ee5 304\/304L, 316L, 430), c\u00e1n ngu\u1ed9i 2B\/BA sau \u1ee7 th\u01b0\u1eddng c\u00f3 c\u01a1 t\u00ednh g\u1ea7n m\u1ee9c ti\u00eau chu\u1ea9n c\u1ee7a v\u1eadt li\u1ec7u \u1ee7; skin-pass l\u00e0m t\u0103ng nh\u1eb9 gi\u1edbi h\u1ea1n ch\u1ea3y so v\u1edbi No.1. Theo ASTM A240\/A480, t\u1ed1i thi\u1ec3u Rp0.2 ~205 MPa (304) v\u00e0 Rm ~515 MPa (tham chi\u1ebfu c\u1ee5 th\u1ec3 theo \u0111\u1ed9 d\u00e0y).<br \/>\n&#8211; H\u00e0n: No.1, 2B, BA \u0111\u1ec1u h\u00e0n t\u1ed1t v\u1edbi 304\/316L; BA \u0111\u00f2i h\u1ecfi b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t t\u1ed1t h\u01a1n sau h\u00e0n n\u1ebfu gi\u1eef th\u1ea9m m\u1ef9. 201\/430 h\u00e0n k\u00e9m h\u01a1n 304\/316L \u1edf m\u1ed9t s\u1ed1 quy tr\u00ecnh.<br \/>\n&#8211; Gia c\u00f4ng: 2B\/BA ph\u00f9 h\u1ee3p d\u1eadp\/\u0111\u1ed9t\/ch\u1ea5n \u0111\u1ed9 ch\u00ednh x\u00e1c cao; No.1 ph\u00f9 h\u1ee3p l\u1ed1c u\u1ed1n d\u00e0y, gia c\u00f4ng k\u1ebft c\u1ea5u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mac_thep_pho_bien_tai_Viet_Nam\"><\/span>M\u00e1c th\u00e9p ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Austenitic: 201, 304\/304L, 316\/316L (kh\u00f4ng t\u1eeb t\u00ednh \u1edf tr\u1ea1ng th\u00e1i \u1ee7; c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb nh\u1eb9 do bi\u1ebfn c\u1ee9ng ngu\u1ed9i).<br \/>\n&#8211; Ferritic: 430 (t\u1eeb t\u00ednh); BA-430 r\u1ea5t ph\u1ed5 bi\u1ebfn cho n\u1ed9i th\u1ea5t, \u0111\u1ed3 gia d\u1ee5ng.<br \/>\n&#8211; L\u01b0u \u00fd: Th\u1eed nam ch\u00e2m kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 ph\u00e2n bi\u1ec7t 201\/304; c\u1ea7n xem ch\u1ee9ng ch\u1ec9 MTC v\u00e0\/ho\u1eb7c ph\u00e2n t\u00edch quang ph\u1ed5 PMI khi y\u00eau c\u1ea7u cao.<\/p>\n<h2 id=\"toc-3-ung-dung-dien-hinh-theo-be-mat\"><span class=\"ez-toc-section\" id=\"Ung_dung_dien_hinh_theo_be_mat\"><\/span>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh theo b\u1ec1 m\u1eb7t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; No.1:<br \/>\n  &#8211; B\u1ed3n b\u1ec3 ho\u00e1 ch\u1ea5t, th\u1ef1c ph\u1ea9m d\u00e0y; th\u00e1p x\u1eed l\u00fd, n\u1eafp b\u00edch; k\u1ebft c\u1ea5u th\u00e9p kh\u00f4ng g\u1ec9; t\u1ea5m s\u00e0n d\u00e0y; chi ti\u1ebft ch\u1ecbu l\u1ef1c, ch\u1ecbu m\u00e0i m\u00f2n.<br \/>\n  &#8211; Gia c\u00f4ng ti\u1ebfp: phun bi, s\u01a1n, \u0111\u00e1nh nh\u00e1m, ph\u1ee7 g\u1ed1m; c\u00e1n hoa ch\u1ed1ng tr\u01b0\u1ee3t.<br \/>\n&#8211; 2B:<br \/>\n  &#8211; V\u1ecf t\u1ee7 \u0111i\u1ec7n\/inverter, thang m\u00e1ng c\u00e1p; thi\u1ebft b\u1ecb b\u1ebfp c\u00f4ng nghi\u1ec7p; linh ki\u1ec7n d\u1eadp\/\u0111\u1ed9t; t\u1ea5m bao che m\u00e1y; \u1ed1ng h\u00e0n c\u00f4ng nghi\u1ec7p (d\u1ea3i x\u1ebb cu\u1ed9n).<br \/>\n  &#8211; Gia c\u00f4ng ti\u1ebfp: \u0111\u00e1nh x\u01b0\u1edbc NO.4, HL; s\u01a1n t\u0129nh \u0111i\u1ec7n; anod gi\u1ea3? (kh\u00f4ng \u00e1p d\u1ee5ng cho th\u00e9p kh\u00f4ng g\u1ec9).<br \/>\n&#8211; BA:<br \/>\n  &#8211; Cabin thang m\u00e1y, \u1ed1p trang tr\u00ed, bi\u1ec3n b\u1ea3ng; \u0111\u1ed3 gia d\u1ee5ng (m\u1eb7t b\u1ebfp, n\u1ed3i, \u1ea5m); \u1ed1ng trang tr\u00ed cao c\u1ea5p; chi ti\u1ebft y\u00eau c\u1ea7u ph\u1ea3n x\u1ea1 cao, v\u1ec7 sinh d\u1ec5.<br \/>\n  &#8211; Gia c\u00f4ng ti\u1ebfp: d\u1eadp k\u00e9o s\u00e2u; \u0111\u00e1nh b\u00f3ng l\u00ean g\u01b0\u01a1ng 8K t\u1ed1n \u00edt c\u00f4ng h\u01a1n 2B.<\/p>\n<h2 id=\"toc-4-cach-chon-nhanh-theo-yeu-cau-ky-thuat-tham-my-chi-\"><span class=\"ez-toc-section\" id=\"Cach_chon_nhanh_theo_yeu_cau_ky_thuat_%E2%80%93_tham_my_%E2%80%93_chi_phi\"><\/span>C\u00e1ch ch\u1ecdn nhanh theo y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u2013 th\u1ea9m m\u1ef9 \u2013 chi ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u1ea7n \u0111\u1ed9 d\u00e0y l\u1edbn (\u22655 mm), kh\u00f4ng \u01b0u ti\u00ean b\u1ec1 m\u1eb7t: ch\u1ecdn No.1 \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed.<br \/>\n&#8211; C\u1ea7n gia c\u00f4ng ch\u00ednh x\u00e1c, b\u1ec1 m\u1eb7t m\u1ecbn, \u0111\u00e1nh x\u01b0\u1edbc\/s\u01a1n\/ph\u1ee7 sau \u0111\u00f3: ch\u1ecdn 2B.<br \/>\n&#8211; C\u1ea7n th\u1ea9m m\u1ef9 cao, b\u00f3ng g\u01b0\u01a1ng t\u1eeb cu\u1ed9n, gi\u1ea3m c\u00f4ng \u0111\u00e1nh b\u00f3ng: ch\u1ecdn BA.<br \/>\n&#8211; M\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n kh\u1eafc nghi\u1ec7t (n\u01b0\u1edbc bi\u1ec3n, clo): \u01b0u ti\u00ean m\u00e1c 316L; b\u1ec1 m\u1eb7t BA\/2B gi\u00fap v\u1ec7 sinh, nh\u01b0ng m\u00e1c th\u00e9p v\u1eabn l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh.<br \/>\n&#8211; C\u1ea7n u\u1ed1n d\u1ebbo\/d\u1eadp s\u00e2u: \u01b0u ti\u00ean 304\/304L b\u1ec1 m\u1eb7t 2B ho\u1eb7c BA; tr\u00e1nh bi\u1ebfn c\u1ee9ng qu\u00e1 m\u1ee9c tr\u01b0\u1edbc gia c\u00f4ng.<br \/>\n&#8211; T\u1ed1i \u01b0u chi ph\u00ed d\u1ef1 \u00e1n:<br \/>\n  &#8211; D\u00f9ng 2B l\u00e0m n\u1ec1n cho NO.4\/HL thay v\u00ec \u0111\u00e1nh b\u00f3ng t\u1eeb No.1.<br \/>\n  &#8211; D\u1ef1 \u00e1n trang tr\u00ed: d\u00f9ng BA \u0111\u00fang \u0111\u1ed9 d\u00e0y c\u1ea7n thi\u1ebft, tr\u00e1nh \u201cqu\u00e1 tay\u201d m\u00e1c\/thickness.<br \/>\n  &#8211; T\u1ed1i \u01b0u kh\u1ed5 cu\u1ed9n (1000\/1219\/1500) \u0111\u1ec3 gi\u1ea3m ph\u1ebf li\u1ec7u khi x\u1ea3 b\u0103ng, c\u1eaft t\u1ea5m.<\/p>\n<h2 id=\"toc-5-tieu-chuan-va-tai-lieu-ky-thuat-tham-chieu\"><span class=\"ez-toc-section\" id=\"Tieu_chuan_va_tai_lieu_ky_thuat_tham_chieu\"><\/span>Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt tham chi\u1ebfu<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; ASTM A240\/A240M: T\u1ea5m, d\u1ea3i v\u00e0 cu\u1ed9n inox cho n\u1ed3i h\u01a1i v\u00e0 \u1ee9ng d\u1ee5ng \u00e1p l\u1ef1c.<br \/>\n&#8211; ASTM A480\/A480M: Y\u00eau c\u1ea7u chung, \u0111\u1ecbnh ngh\u0129a b\u1ec1 m\u1eb7t No.1, 2B, BA v\u00e0 dung sai.<br \/>\n&#8211; JIS G4304 (c\u00e1n n\u00f3ng), JIS G4305 (c\u00e1n ngu\u1ed9i) cho th\u00e9p kh\u00f4ng g\u1ec9 t\u1ea5m\/d\u1ea3i.<br \/>\n&#8211; EN 10088-2: Th\u00e9p kh\u00f4ng g\u1ec9 ph\u1eb3ng \u2013 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t.<br \/>\n&#8211; T\u00e0i li\u1ec7u h\u00e3ng: Outokumpu \u201cSurface finishes for stainless steels\u201d; Aperam\/Nippon Steel datasheets (tham kh\u1ea3o th\u00f4ng s\u1ed1 b\u1ec1 m\u1eb7t, quy tr\u00ecnh BA).<\/p>\n<p>Ngu\u1ed3n: ASTM International (A240, A480), JIS G4304\/G4305, EN 10088-2, Outokumpu Surface Finishes Guide, Aperam Technical Datasheets.<\/p>\n<h2 id=\"toc-6-kiem-tra-chat-luong-khi-nhan-cuon-checklist-thuc-t\"><span class=\"ez-toc-section\" id=\"Kiem_tra_chat_luong_khi_nhan_cuon_Checklist_thuc_te\"><\/span>Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng khi nh\u1eadn cu\u1ed9n (Checklist th\u1ef1c t\u1ebf)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Nh\u00e3n cu\u1ed9n: m\u00e1c th\u00e9p, k\u00edch th\u01b0\u1edbc, s\u1ed1 nhi\u1ec7t (heat), chu\u1ea9n (ASTM\/JIS\/EN), b\u1ec1 m\u1eb7t (No.1\/2B\/BA), ID\/OD, kh\u1ed1i l\u01b0\u1ee3ng.<br \/>\n&#8211; Ch\u1ee9ng ch\u1ec9 MTC 3.1: th\u00e0nh ph\u1ea7n ho\u00e1, c\u01a1 t\u00ednh, quy c\u00e1ch b\u1ec1 m\u1eb7t.<br \/>\n&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; No.1: ch\u1ea5p nh\u1eadn v\u1ebft nh\u00e1m \u0111\u1ec1u; kh\u00f4ng ch\u1ea5p nh\u1eadn r\u1ed7 s\u00e2u, v\u1ebft n\u1ee9t, l\u1edbp g\u1ec9 t\u1ed3n d\u01b0.<br \/>\n  &#8211; 2B\/BA: ki\u1ec3m tr\u1ea7y x\u01b0\u1edbc, v\u1ebft \u1ed1 n\u01b0\u1edbc, r\u1ed7 pinhole; BA c\u1ea7n m\u00e0ng PE b\u1ea3o v\u1ec7 nguy\u00ean v\u1eb9n.<br \/>\n&#8211; Dung sai: \u0111o \u0111i\u1ec3m d\u00e0y\/kh\u1ed5, \u0111\u1ed9 ph\u1eb3ng sau x\u1ea3 cu\u1ed9n\/c\u1eaft t\u1ea5m; so ti\u00eau chu\u1ea9n ASTM A480.<br \/>\n&#8211; D\u1ea7u\/m\u00e0ng b\u1ea3o v\u1ec7: No.1\/2B c\u00f3 th\u1ec3 c\u00f3 d\u1ea7u ch\u1ed1ng r\u1ec9; BA c\u1ea7n s\u1ea1ch, kh\u00f4ng \u1ed1.<br \/>\n&#8211; Th\u1eed nhanh: PMI khi y\u00eau c\u1ea7u cao; test u\u1ed1n\/bavia sau x\u1ea3 b\u0103ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 b\u1ec1 m\u1eb7t c\u1ea1nh (mill edge vs slit edge).<\/p>\n<h2 id=\"toc-7-bao-quan-va-gia-cong-luu-y-de-giu-be-mat-chuan\"><span class=\"ez-toc-section\" id=\"Bao_quan_va_gia_cong_luu_y_de_giu_be_mat_chuan\"><\/span>B\u1ea3o qu\u1ea3n v\u00e0 gia c\u00f4ng: l\u01b0u \u00fd \u0111\u1ec3 gi\u1eef b\u1ec1 m\u1eb7t chu\u1ea9n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; L\u01b0u kho kh\u00f4 r\u00e1o, tr\u00e1nh s\u01b0\u01a1ng \u1ea9m; k\u00ea g\u1ed7\/nh\u1ef1a, kh\u00f4ng k\u00ea tr\u1ef1c ti\u1ebfp n\u1ec1n.<br \/>\n&#8211; Tr\u00e1nh nhi\u1ec5m b\u1ea9n s\u1eaft carbon (Fe) v\u00e0o b\u1ec1 m\u1eb7t inox; d\u00f9ng d\u1ee5ng c\u1ee5 ri\u00eang, kh\u0103n s\u1ea1ch.<br \/>\n&#8211; BA\/2B c\u00f3 m\u00e0ng PE: gi\u1eef m\u00e0ng \u0111\u1ebfn c\u00f4ng \u0111o\u1ea1n cu\u1ed1i; b\u00f3c sau khi v\u1ec7 sinh.<br \/>\n&#8211; Sau h\u00e0n\/c\u1eaft plasma\/laser: l\u00e0m s\u1ea1ch nhi\u1ec7t m\u00e0u, pickling\/passivation khi c\u1ea7n \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1edbp th\u1ee5 \u0111\u1ed9ng.<br \/>\n&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 v\u1edbi dung d\u1ecbch trung t\u00ednh; tr\u00e1nh Clo n\u1ed3ng \u0111\u1ed9 cao \u0111\u1ecdng tr\u00ean b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-8-cau-hoi-thuong-gap\"><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 2B c\u00f3 \u0111\u00e1nh b\u00f3ng l\u00ean g\u01b0\u01a1ng \u0111\u01b0\u1ee3c kh\u00f4ng? \u0110\u01b0\u1ee3c, nh\u01b0ng t\u1ed1n c\u00f4ng h\u01a1n so v\u1edbi BA; BA l\u00e0 n\u1ec1n t\u1ed1i \u01b0u \u0111\u1ec3 \u0111\u1ea1t 8K nhanh v\u00e0 \u0111\u1ec1u.<br \/>\n&#8211; BA c\u00f3 hai m\u1eb7t \u0111\u1ec1u b\u00f3ng kh\u00f4ng? Th\u00f4ng th\u01b0\u1eddng c\u00f3, nh\u01b0ng \u0111\u1ed9 \u201cg\u01b0\u01a1ng\u201d gi\u1eefa hai m\u1eb7t c\u00f3 th\u1ec3 kh\u00e1c nh\u1eb9 t\u00f9y line; h\u00e3y x\u00e1c nh\u1eadn khi \u0111\u1eb7t h\u00e0ng trang tr\u00ed hai m\u1eb7t.<br \/>\n&#8211; No.1 s\u01a1n c\u00f3 b\u00e1m t\u1ed1t kh\u00f4ng? C\u00f3, n\u1ebfu x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u00fang quy tr\u00ecnh (t\u1ea9y d\u1ea7u, t\u1ea1o nh\u00e1m, primer ph\u00f9 h\u1ee3p).<br \/>\n&#8211; 201 c\u00f3 th\u1ec3 thay 304 cho ngo\u00e0i tr\u1eddi? Kh\u00f4ng khuy\u1ebfn ngh\u1ecb; 201 k\u00e9m ch\u1ed1ng r\u1ed7 pitting h\u01a1n 304\/316L, \u0111\u1eb7c bi\u1ec7t m\u00f4i tr\u01b0\u1eddng bi\u1ec3n\/\u00f4 nhi\u1ec5m.<\/p>\n<h2 id=\"toc-9-ket-luan-chon-dung-be-mat-de-toi-uu-chat-luong-va-\"><span class=\"ez-toc-section\" id=\"Ket_luan_Chon_dung_be_mat_de_toi_uu_chat_luong_va_chi_phi\"><\/span>K\u1ebft lu\u1eadn: Ch\u1ecdn \u0111\u00fang b\u1ec1 m\u1eb7t \u0111\u1ec3 t\u1ed1i \u01b0u ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; No.1, 2B, BA kh\u00e1c nhau c\u1ed1t l\u00f5i \u1edf c\u00f4ng ngh\u1ec7 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t, d\u1eabn \u0111\u1ebfn kh\u00e1c bi\u1ec7t v\u1ec1 nh\u00e1m, dung sai, c\u01a1 t\u00ednh th\u1ef1c d\u1ee5ng v\u00e0 chi ph\u00ed.<br \/>\n&#8211; Nguy\u00ean t\u1eafc nhanh:<br \/>\n  &#8211; \u0110\u1ed9 d\u00e0y l\u1edbn, \u00edt y\u00eau c\u1ea7u th\u1ea9m m\u1ef9: No.1.<br \/>\n  &#8211; Gia c\u00f4ng ch\u00ednh x\u00e1c, n\u1ec1n \u0111\u00e1nh x\u01b0\u1edbc\/s\u01a1n: 2B.<br \/>\n  &#8211; Th\u1ea9m m\u1ef9 cao, b\u00f3ng g\u01b0\u01a1ng: BA.<br \/>\n&#8211; M\u00e1c th\u00e9p (304\/316L\/430\/201) quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 h\u00e0n; b\u1ec1 m\u1eb7t quy\u1ebft \u0111\u1ecbnh th\u1ea9m m\u1ef9, v\u1ec7 sinh, chi ph\u00ed gia c\u00f4ng ti\u1ebfp.<br \/>\n&#8211; \u0110\u1eb7t h\u00e0ng theo ti\u00eau chu\u1ea9n (ASTM\/JIS\/EN), k\u00e8m MTC 3.1, t\u1ed1i \u01b0u kh\u1ed5 cu\u1ed9n \u0111\u1ec3 gi\u1ea3m ph\u1ebf li\u1ec7u. X\u1eed l\u00fd \u2013 b\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch \u0111\u1ec3 gi\u1eef b\u1ec1 m\u1eb7t \u0111\u1ea1t chu\u1ea9n.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn cu\u1ed9n inox chu\u1ea9n k\u1ef9 thu\u1eadt v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed? Li\u00ean h\u1ec7 Inox Cuong Thinh \u2013 Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa inox cu\u1ed9n c\u00e1n n\u00f3ng No.1 v\u00e0 c\u00e1n ngu\u1ed9i 2B, BA: quy tr\u00ecnh, \u0111\u1ed9 d\u00e0y, nh\u00e1m, c\u01a1 t\u00ednh, \u1ee9ng d\u1ee5ng, gi\u00e1. H\u01b0\u1edbng d\u1eabn ch\u1ecdn v\u1eadt li\u1ec7u chu\u1ea9n.<\/p>\n","protected":false},"author":7,"featured_media":1032,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2589","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\/2589","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=2589"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2589\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1032"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}