{"id":1140,"date":"2025-10-04T00:34:39","date_gmt":"2025-10-03T17:34:39","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/"},"modified":"2025-10-04T00:34:39","modified_gmt":"2025-10-03T17:34:39","slug":"huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ecdn Inox ngo\u00e0i tr\u1eddi mi\u1ec1n B\u1eafc n\u00f3ng \u1ea9m: 304 hay 316?"},"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;1140&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\u01b0\u1edbng d\u1eabn ch\u1ecdn Inox ngo\u00e0i tr\u1eddi mi\u1ec1n B\u1eafc n\u00f3ng \u1ea9m: 304 hay 316?&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 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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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Mien_Bac_nong_am_tac_dong_Inox_nhu_the_nao\" >Mi\u1ec1n B\u1eafc n\u00f3ng \u1ea9m t\u00e1c \u0111\u1ed9ng Inox nh\u01b0 th\u1ebf n\u00e0o?<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Chon_mac_Inox_theo_muc_phoi_nhiem\" >Ch\u1ecdn m\u00e1c Inox theo m\u1ee9c ph\u01a1i nhi\u1ec5m<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Moi_truong_C3_%E2%80%93_noi_diado_thi_it_o_nhiem\" >M\u00f4i tr\u01b0\u1eddng C3 \u2013 n\u1ed9i \u0111\u1ecba\/\u0111\u00f4 th\u1ecb \u00edt \u00f4 nhi\u1ec5m<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Moi_truong_C3%E2%80%93C4_%E2%80%93_do_thi_o_nhiem_gan_khu_cong_nghiep\" >M\u00f4i tr\u01b0\u1eddng C3\u2013C4 \u2013 \u0111\u00f4 th\u1ecb \u00f4 nhi\u1ec5m, g\u1ea7n khu c\u00f4ng nghi\u1ec7p<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Moi_truong_C4%E2%80%93C5M_%E2%80%93_ven_bien_cang_hoi_muoi\" >M\u00f4i tr\u01b0\u1eddng C4\u2013C5\/M \u2013 ven bi\u1ec3n, c\u1ea3ng, h\u01a1i mu\u1ed1i<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Be_mat_hoan_thien_yeu_to_quyet_dinh_tham_my_va_do_ben\" >B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n: y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u1ea9m m\u1ef9 v\u00e0 \u0111\u1ed9 b\u1ec1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/inoxcuongthinh.com\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Thiet_ke_va_do_day_chong_bay_nuoc_du_cung_cho_gio_bao\" >Thi\u1ebft k\u1ebf v\u00e0 \u0111\u1ed9 d\u00e0y: ch\u1ed1ng b\u1eaby n\u01b0\u1edbc, \u0111\u1ee7 c\u1ee9ng cho gi\u00f3 b\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Gia_cong_han_va_xu_ly_be_mat_de_giu_tuoi_tho\" >Gia c\u00f4ng, h\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 gi\u1eef tu\u1ed5i th\u1ecd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Phu_kien_lien_ket_va_chong_an_mon_dien_hoa\" >Ph\u1ee5 ki\u1ec7n, li\u00ean k\u1ebft v\u00e0 ch\u1ed1ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a<\/a><\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Bao_tri_lich_rua_phu_hop_tung_moi_truong\" >B\u1ea3o tr\u00ec: l\u1ecbch r\u1eeda ph\u00f9 h\u1ee3p t\u1eebng m\u00f4i tr\u01b0\u1eddng<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Chi_phi_va_bai_toan_vong_doi\" >Chi ph\u00ed v\u00e0 b\u00e0i to\u00e1n v\u00f2ng \u0111\u1eddi<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Quy_trinh_chon_nhanh_ap_dung_tai_cong_trinh\" >Quy tr\u00ecnh ch\u1ecdn nhanh (\u00e1p d\u1ee5ng t\u1ea1i c\u00f4ng tr\u00ecnh)<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Loi_thuong_gap_can_tranh\" >L\u1ed7i th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Vi_du_cau_hinh_khuyen_nghi_theo_hang_muc\" >V\u00ed d\u1ee5 c\u1ea5u h\u00ecnh khuy\u1ebfn ngh\u1ecb theo h\u1ea1ng m\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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Mua_hang_va_kiem_soat_chat_luong\" >Mua h\u00e0ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#Khi_nao_can_nhac_Inox_dac_biet\" >Khi n\u00e0o c\u00e2n nh\u1eafc Inox \u0111\u1eb7c bi\u1ec7t?<\/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\/huong-dan-chon-inox-ngoai-troi-mien-bac-nong-am-304-hay-316\/#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-mien-bac-nong-am-tac-dong-inox-nhu-the-nao\">Mi\u1ec1n B\u1eafc n\u00f3ng \u1ea9m t\u00e1c \u0111\u1ed9ng Inox nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-1-chon-mac-inox-theo-muc-phoi-nhiem\">Ch\u1ecdn m\u00e1c Inox theo m\u1ee9c ph\u01a1i nhi\u1ec5m<\/a><\/li>\n<li><a href=\"#toc-2-be-mat-hoan-thien-yeu-to-quyet-dinh-tham-my-va-do-\">B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n: y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u1ea9m m\u1ef9 v\u00e0 \u0111\u1ed9 b\u1ec1n<\/a><\/li>\n<li><a href=\"#toc-3-thiet-ke-va-do-day-chong-bay-nuoc-du-cung-cho-gio-\">Thi\u1ebft k\u1ebf v\u00e0 \u0111\u1ed9 d\u00e0y: ch\u1ed1ng b\u1eaby n\u01b0\u1edbc, \u0111\u1ee7 c\u1ee9ng cho gi\u00f3 b\u00e3o<\/a><\/li>\n<li><a href=\"#toc-4-gia-cong-han-va-xu-ly-be-mat-de-giu-tuoi-tho\">Gia c\u00f4ng, h\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 gi\u1eef tu\u1ed5i th\u1ecd<\/a><\/li>\n<li><a href=\"#toc-5-phu-kien-lien-ket-va-chong-an-mon-dien-hoa\">Ph\u1ee5 ki\u1ec7n, li\u00ean k\u1ebft v\u00e0 ch\u1ed1ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a<\/a><\/li>\n<li><a href=\"#toc-6-bao-tri-lich-rua-phu-hop-tung-moi-truong\">B\u1ea3o tr\u00ec: l\u1ecbch r\u1eeda ph\u00f9 h\u1ee3p t\u1eebng m\u00f4i tr\u01b0\u1eddng<\/a><\/li>\n<li><a href=\"#toc-7-chi-phi-va-bai-toan-vong-doi\">Chi ph\u00ed v\u00e0 b\u00e0i to\u00e1n v\u00f2ng \u0111\u1eddi<\/a><\/li>\n<li><a href=\"#toc-8-quy-trinh-chon-nhanh-ap-dung-tai-cong-trinh\">Quy tr\u00ecnh ch\u1ecdn nhanh (\u00e1p d\u1ee5ng t\u1ea1i c\u00f4ng tr\u00ecnh)<\/a><\/li>\n<li><a href=\"#toc-9-loi-thuong-gap-can-tranh\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-10-vi-du-cau-hinh-khuyen-nghi-theo-hang-muc\">V\u00ed d\u1ee5 c\u1ea5u h\u00ecnh khuy\u1ebfn ngh\u1ecb theo h\u1ea1ng m\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-11-mua-hang-va-kiem-soat-chat-luong\">Mua h\u00e0ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/a><\/li>\n<li><a href=\"#toc-12-khi-nao-can-nhac-inox-dac-biet\">Khi n\u00e0o c\u00e2n nh\u1eafc Inox \u0111\u1eb7c bi\u1ec7t?<\/a><\/li>\n<li><a href=\"#toc-13-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Ch\u1ecdn \u0111\u00fang Inox cho c\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi \u1edf mi\u1ec1n B\u1eafc l\u00e0 quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt l\u1eabn kinh t\u1ebf: kh\u00ed h\u1eadu n\u00f3ng \u1ea9m, m\u01b0a axit \u0111\u00f4 th\u1ecb, h\u01a1i mu\u1ed1i ven bi\u1ec3n v\u00e0 \u00f4 nhi\u1ec5m c\u00f4ng nghi\u1ec7p t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0103n m\u00f2n kh\u1eafc nghi\u1ec7t. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn th\u1ef1c chi\u1ebfn \u0111\u1ec3 b\u1ea1n ch\u1ecdn m\u00e1c th\u00e9p, b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y, quy tr\u00ecnh thi c\u00f4ng v\u00e0 b\u1ea3o tr\u00ec t\u1ed1i \u01b0u. Ch\u1ee7 \u0111\u1ec1 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ed1t l\u00f5i trong t\u01b0 duy \u201cch\u1ecdn Inox theo m\u00f4i tr\u01b0\u1eddng, m\u1ee5c \u0111\u00edch v\u00e0 ng\u00e2n s\u00e1ch\u201d, nh\u01b0ng c\u00e1c khuy\u1ebfn ngh\u1ecb d\u01b0\u1edbi \u0111\u00e2y \u0111\u00e3 \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n ch\u1ed1t ph\u01b0\u01a1ng \u00e1n t\u1ef1 tin cho t\u1eebng h\u1ea1ng m\u1ee5c.<\/p>\n<h2 id=\"toc-0-mien-bac-nong-am-tac-dong-inox-nhu-the-nao\"><span class=\"ez-toc-section\" id=\"Mien_Bac_nong_am_tac_dong_Inox_nhu_the_nao\"><\/span>Mi\u1ec1n B\u1eafc n\u00f3ng \u1ea9m t\u00e1c \u0111\u1ed9ng Inox nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; \u0110\u1ed9 \u1ea9m cao quanh n\u0103m, m\u01b0a theo m\u00f9a k\u00e9o d\u00e0i, \u0111\u1ecdng n\u01b0\u1edbc sau m\u01b0a d\u1ec5 g\u00e2y \u0103n m\u00f2n k\u1ebd h\u1edf (crevice corrosion).<br \/>\n&#8211; \u0110\u00f4 th\u1ecb c\u00f4ng nghi\u1ec7p: SOx\/NOx t\u1ea1o m\u01b0a axit, b\u1ee5i b\u1ea9n b\u00e1m m\u1eb7t l\u00e0m t\u0103ng \u201ctea staining\u201d (\u1ed1 v\u00e0ng n\u00e2u).<br \/>\n&#8211; Ven bi\u1ec3n (H\u1ea3i Ph\u00f2ng, Qu\u1ea3ng Ninh, Nam \u0110\u1ecbnh, Th\u00e1i B\u00ecnh\u2026): s\u01b0\u01a1ng mu\u1ed1i\/chloride g\u00e2y r\u1ed7 (pitting), \u0111\u1eb7c bi\u1ec7t tr\u00ean b\u1ec1 m\u1eb7t th\u00f4.<br \/>\n&#8211; Nhi\u1ec7t \u0111\u1ed9 dao \u0111\u1ed9ng ng\u00e0y-\u0111\u00eam v\u00e0 chu k\u1ef3 \u1ea9m\/kh\u00f4 l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 \u0103n m\u00f2n c\u1ee5c b\u1ed9.<\/p>\n<p>V\u1ec1 ph\u00e2n lo\u1ea1i \u0103n m\u00f2n kh\u00ed quy\u1ec3n (tham chi\u1ebfu ISO 9223):<br \/>\n&#8211; C3: n\u1ed9i \u0111\u1ecba\/\u0111\u00f4 th\u1ecb \u00edt \u00f4 nhi\u1ec5m.<br \/>\n&#8211; C4: \u0111\u00f4 th\u1ecb \u00f4 nhi\u1ec5m, g\u1ea7n khu c\u00f4ng nghi\u1ec7p, ho\u1eb7c c\u00e1ch b\u1edd bi\u1ec3n v\u00e0i\u2013ch\u1ee5c km.<br \/>\n&#8211; C5\/M: s\u00e1t bi\u1ec3n\/c\u1ea3ng, khu c\u00f4ng nghi\u1ec7p n\u1eb7ng\/h\u00f3a ch\u1ea5t.<\/p>\n<h2 id=\"toc-1-chon-mac-inox-theo-muc-phoi-nhiem\"><span class=\"ez-toc-section\" id=\"Chon_mac_Inox_theo_muc_phoi_nhiem\"><\/span>Ch\u1ecdn m\u00e1c Inox theo m\u1ee9c ph\u01a1i nhi\u1ec5m<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nguy\u00ean t\u1eafc: \u01b0u ti\u00ean m\u00e1c c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng chloride cao (th\u01b0\u1eddng th\u1ec3 hi\u1ec7n qua PREN). X\u1ebfp h\u1ea1ng th\u1ef1c d\u1ee5ng:<br \/>\n&#8211; 201 (Cr-Mn-Ni th\u1ea5p, kh\u00f4ng Mo): kh\u00e1ng chloride y\u1ebfu, d\u1ec5 \u1ed1 v\u00e0 r\u1ed7 ngo\u00e0i tr\u1eddi.<br \/>\n&#8211; 304\/304L (18\/8): c\u00e2n b\u1eb1ng t\u1ed1t, d\u00f9ng \u0111\u01b0\u1ee3c C3 v\u00e0 m\u1ed9t ph\u1ea7n C4 khi x\u1eed l\u00fd b\u1ec1 m\u1eb7t\/b\u1ea3o tr\u00ec t\u1ed1t.<br \/>\n&#8211; 316\/316L (Mo ~2%): kh\u00e1ng chloride cao h\u01a1n 304, khuy\u1ebfn ngh\u1ecb cho C4\u2013C5.<br \/>\n&#8211; 444 (ferritic Mo): kh\u00e1ng chloride t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 316 cho v\u00e0i \u1ee9ng d\u1ee5ng t\u1ea5m\/m\u00e1i, gia c\u00f4ng c\u1ea7n kinh nghi\u1ec7m.<br \/>\n&#8211; 2205 Duplex: kh\u00e1ng r\u1ed7 r\u1ea5t cao, c\u01a1 t\u00ednh l\u1edbn, ph\u00f9 h\u1ee3p k\u1ebft c\u1ea5u\/ven bi\u1ec3n kh\u1eafc nghi\u1ec7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Moi_truong_C3_%E2%80%93_noi_diado_thi_it_o_nhiem\"><\/span>M\u00f4i tr\u01b0\u1eddng C3 \u2013 n\u1ed9i \u0111\u1ecba\/\u0111\u00f4 th\u1ecb \u00edt \u00f4 nhi\u1ec5m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; M\u00e1c khuy\u1ebfn ngh\u1ecb: 304\/304L.<br \/>\n&#8211; D\u00f9ng 201 ch\u1ec9 cho h\u1ea1ng m\u1ee5c che m\u01b0a tr\u1ef1c ti\u1ebfp, y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 th\u1ea5p v\u00e0 c\u00f3 v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3; ch\u1ea5p nh\u1eadn r\u1ee7i ro \u1ed1\/\u0103n m\u00f2n.<br \/>\n&#8211; B\u1ec1 m\u1eb7t: 2B + hairline\/satin h\u1ea1t m\u1ecbn (\u2265#240), ho\u1eb7c BA\/mirror cho trang tr\u00ed cao c\u1ea5p.<br \/>\n&#8211; B\u1ea3o tr\u00ec: r\u1eeda 3\u20136 th\u00e1ng\/l\u1ea7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Moi_truong_C3%E2%80%93C4_%E2%80%93_do_thi_o_nhiem_gan_khu_cong_nghiep\"><\/span>M\u00f4i tr\u01b0\u1eddng C3\u2013C4 \u2013 \u0111\u00f4 th\u1ecb \u00f4 nhi\u1ec5m, g\u1ea7n khu c\u00f4ng nghi\u1ec7p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; \u01afu ti\u00ean 304L cho c\u1ea5u ki\u1ec7n th\u00f4ng d\u1ee5ng; 316\/316L cho b\u1ec1 m\u1eb7t trang tr\u00ed, chi ti\u1ebft kh\u00f3 v\u1ec7 sinh, ho\u1eb7c d\u1ef1 \u00e1n y\u00eau c\u1ea7u tu\u1ed5i th\u1ecd d\u00e0i.<br \/>\n&#8211; Tr\u00e1nh 201 cho h\u1ea1ng m\u1ee5c tay v\u1ecbn\/lan can\/b\u1ea3ng bi\u1ec3n ph\u01a1i m\u01b0a n\u1eafng.<br \/>\n&#8211; B\u1ea3o tr\u00ec: 1\u20133 th\u00e1ng\/l\u1ea7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Moi_truong_C4%E2%80%93C5M_%E2%80%93_ven_bien_cang_hoi_muoi\"><\/span>M\u00f4i tr\u01b0\u1eddng C4\u2013C5\/M \u2013 ven bi\u1ec3n, c\u1ea3ng, h\u01a1i mu\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; T\u1ed1i thi\u1ec3u 316\/316L; ch\u1ecdn 316L khi h\u00e0n \u0111\u1ec3 gi\u1ea3m nh\u1ea1y c\u1ea3m \u0103n m\u00f2n gi\u1eefa h\u1ea1t.<br \/>\n&#8211; 2205 Duplex cho lan can, c\u1ea7u \u0111i b\u1ed9, k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c ho\u1eb7c khi kho\u1ea3ng c\u00e1ch t\u1edbi bi\u1ec3n <1 km.  \n- 444 c\u00f3 th\u1ec3 d\u00f9ng cho t\u1ea5m m\u00e1i, m\u00e1ng x\u1ed1i n\u1ebfu quy tr\u00ecnh h\u00e0n\/\u00e9p \u0111\u1ecbnh h\u00ecnh chu\u1ea9n.  \n- B\u1ea3o tr\u00ec: 2\u20134 tu\u1ea7n\/l\u1ea7n r\u1eeda n\u01b0\u1edbc ng\u1ecdt; electropolish ho\u1eb7c ph\u1ee7 b\u1ea3o v\u1ec7 n\u1ebfu s\u00e1t bi\u1ec3n.\n\n\n\n<h2 id=\"toc-2-be-mat-hoan-thien-yeu-to-quyet-dinh-tham-my-va-do-\"><span class=\"ez-toc-section\" id=\"Be_mat_hoan_thien_yeu_to_quyet_dinh_tham_my_va_do_ben\"><\/span>B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n: y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u1ea9m m\u1ef9 v\u00e0 \u0111\u1ed9 b\u1ec1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Quy t\u1eafc chung: b\u1ec1 m\u1eb7t c\u00e0ng m\u1ecbn (Ra th\u1ea5p) c\u00e0ng \u00edt gi\u1eef mu\u1ed1i\/b\u1ee5i, c\u00e0ng gi\u1ea3m \u1ed1\/r\u1ed7.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; 2B + \u0111\u00e1nh x\u01b0\u1edbc m\u1ecbn #240\u2013#320 ho\u1eb7c hairline \u0111\u1ec1u cho lan can\/\u1ed1p.<br \/>\n  &#8211; BA\/mirror cho bi\u1ec3n hi\u1ec7u\/\u1ed1p trang tr\u00ed cao c\u1ea5p; d\u1ec5 r\u1eeda, kh\u00f3 b\u00e1m b\u1ea9n.<br \/>\n  &#8211; Bead blast c\u1ea7n ki\u1ec3m so\u00e1t ch\u1eb7t (d\u1ec5 t\u0103ng \u0111\u1ed9 nh\u00e1m n\u1ebfu l\u1ef1a ch\u1ecdn h\u1ea1t sai).<br \/>\n  &#8211; Electropolish cho m\u00f4i tr\u01b0\u1eddng bi\u1ec3n\/c\u00f4ng tr\u00ecnh h\u1ea3i v\u1eadn \u0111\u1ec3 n\u00e2ng kh\u00e1ng \u0103n m\u00f2n.<br \/>\n&#8211; Tr\u00e1nh: x\u01b0\u1edbc th\u00f4 (#120\u2013#180), ch\u00e0 nh\u00e1m b\u1eb1ng v\u1eadt li\u1ec7u th\u00e9p carbon (g\u00e2y nhi\u1ec5m s\u1eaft).<br \/>\n&#8211; Sau gia c\u00f4ng: t\u1ea9y m\u1ed1i h\u00e0n (pickling) v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) theo h\u01b0\u1edbng d\u1eabn t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ASTM A380\/A967.<\/p>\n<h2 id=\"toc-3-thiet-ke-va-do-day-chong-bay-nuoc-du-cung-cho-gio-\"><span class=\"ez-toc-section\" id=\"Thiet_ke_va_do_day_chong_bay_nuoc_du_cung_cho_gio_bao\"><\/span>Thi\u1ebft k\u1ebf v\u00e0 \u0111\u1ed9 d\u00e0y: ch\u1ed1ng b\u1eaby n\u01b0\u1edbc, \u0111\u1ee7 c\u1ee9ng cho gi\u00f3 b\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Thi\u1ebft k\u1ebf kh\u00e1ng \u0103n m\u00f2n:<br \/>\n  &#8211; Tr\u00e1nh khe h\u1edf <0,5 mm v\u00e0 \u201ct\u00fai n\u01b0\u1edbc\u201d \u0111\u1ecdng; t\u1ea1o d\u1ed1c \u22653\u00b0.  \n  - Bo tr\u00f2n m\u00e9p, h\u1edf tho\u00e1t n\u01b0\u1edbc \u1edf h\u1ed9p\/h\u1ed9p k\u1ef9 thu\u1eadt; th\u00eam m\u00e1ng h\u1ee9ng gi\u1ecdt.  \n  - T\u00e1ch ly \u0111i\u1ec7n (nh\u1ef1a, cao su EPDM) khi ti\u1ebfp x\u00fac nh\u00f4m\/th\u00e9p carbon \u0111\u1ec3 h\u1ea1n ch\u1ebf \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.\n- G\u1ee3i \u00fd \u0111\u1ed9 d\u00e0y (tham kh\u1ea3o, c\u1ea7n t\u00ednh theo t\u1ea3i gi\u00f3 ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh, chi\u1ec1u cao l\u1eafp \u0111\u1eb7t, kho\u1ea3ng g\u1ed1i):\n  - Lan can \u1ed1ng trang tr\u00ed n\u1ed9i \u0111\u00f4: 304L \u03d538\u201350 mm, d\u00e0y 1,2\u20131,5 mm; \u0111\u1ed1 \u03d525\u201332 mm, d\u00e0y 1,0\u20131,2 mm.  \n  - Lan can ven bi\u1ec3n: 316L t\u0103ng l\u00ean 1,5\u20132,0 mm; tr\u1ee5 h\u1ed9p 40\u00d780 d\u00e0y 2,0\u20132,5 mm.  \n  - \u1ed0p m\u1eb7t d\u1ef1ng: t\u1ea5m 1,0\u20131,5 mm c\u00f3 g\u00e2n t\u0103ng c\u1ee9ng\/khung \u0111\u1ee1.  \n  - M\u00e1i\/t\u1ea5m s\u00f3ng: 304 d\u00e0y 0,45\u20130,6 mm (\u0111\u00f4 th\u1ecb); 316 d\u00e0y 0,5\u20130,6 mm (ven bi\u1ec3n).  \n  - Bu l\u00f4ng\/\u0111ai \u1ed1c: Inox A2-70 (304) cho C3, A4-70 (316) cho C4\u2013C5, k\u00edch th\u01b0\u1edbc M8\u2013M12 t\u00f9y li\u00ean k\u1ebft.\n\n\n\n<h2 id=\"toc-4-gia-cong-han-va-xu-ly-be-mat-de-giu-tuoi-tho\"><span class=\"ez-toc-section\" id=\"Gia_cong_han_va_xu_ly_be_mat_de_giu_tuoi_tho\"><\/span>Gia c\u00f4ng, h\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 gi\u1eef tu\u1ed5i th\u1ecd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u h\u00e0n:<br \/>\n  &#8211; 304\/304L d\u00f9ng que\/kim lo\u1ea1i \u0111i\u1ec1n 308L.<br \/>\n  &#8211; 316\/316L d\u00f9ng 316L.<br \/>\n  &#8211; 2205 Duplex d\u00f9ng 2209.<br \/>\n&#8211; K\u1ef9 thu\u1eadt:<br \/>\n  &#8211; \u01afu ti\u00ean m\u00e1c \u201cL\u201d khi c\u00f3 h\u00e0n nhi\u1ec1u; ki\u1ec3m so\u00e1t \u0111\u1ea7u v\u00e0o nhi\u1ec7t, che kh\u00ed m\u1eb7t sau (back purging) cho \u1ed1ng.<br \/>\n  &#8211; Lo\u1ea1i b\u1ecf \u201cheat tint\u201d b\u1eb1ng pickling gel\/bath; r\u1eeda k\u1ef9 r\u1ed3i passivation.<br \/>\n  &#8211; D\u00f9ng b\u00e0n ch\u1ea3i inox ri\u00eang, \u0111\u0129a m\u00e0i kh\u00f4ng nhi\u1ec5m s\u1eaft; kh\u00f4ng d\u00f9ng h\u00f3a ch\u1ea5t ch\u1ee9a chloride\/axit m\u1ea1nh kh\u00f4ng ki\u1ec3m so\u00e1t.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t sai s\u00f3t: h\u00e0n xong kh\u00f4ng t\u1ea9y\/kh\u00f4ng th\u1ee5 \u0111\u1ed9ng h\u00f3a l\u00e0 nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u g\u00e2y \u1ed1 v\u00e0ng v\u00e0 r\u1ed7 s\u1edbm.<\/p>\n<h2 id=\"toc-5-phu-kien-lien-ket-va-chong-an-mon-dien-hoa\"><span class=\"ez-toc-section\" id=\"Phu_kien_lien_ket_va_chong_an_mon_dien_hoa\"><\/span>Ph\u1ee5 ki\u1ec7n, li\u00ean k\u1ebft v\u00e0 ch\u1ed1ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u00f9ng bulong, \u00ea-cu, long \u0111en c\u00f9ng ho\u1eb7c cao h\u01a1n c\u1ea5p m\u00e1c n\u1ec1n (v\u00ed d\u1ee5 lan can 316L th\u00ec d\u00f9ng A4-70).<br \/>\n&#8211; T\u00e1ch ly gi\u1eefa inox v\u00e0 kim lo\u1ea1i kh\u00e1c b\u1eb1ng long \u0111en\/\u0111\u1ec7m nh\u1ef1a; b\u1ecbt k\u00edn l\u1ed7 khoan ti\u1ebfp x\u00fac n\u01b0\u1edbc bi\u1ec3n.<br \/>\n&#8211; Keo tr\u00e1m trung t\u00ednh (kh\u00f4ng chloride), s\u01a1n b\u1ea3o v\u1ec7 \u0111i\u1ec3m c\u1eaft n\u1ebfu g\u1ea7n th\u00e9p carbon.<\/p>\n<h2 id=\"toc-6-bao-tri-lich-rua-phu-hop-tung-moi-truong\"><span class=\"ez-toc-section\" id=\"Bao_tri_lich_rua_phu_hop_tung_moi_truong\"><\/span>B\u1ea3o tr\u00ec: l\u1ecbch r\u1eeda ph\u00f9 h\u1ee3p t\u1eebng m\u00f4i tr\u01b0\u1eddng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Quy tr\u00ecnh c\u01a1 b\u1ea3n: r\u1eeda n\u01b0\u1edbc s\u1ea1ch + ch\u1ea5t t\u1ea9y trung t\u00ednh, kh\u0103n m\u1ec1m; x\u1ea3 l\u1ea1i n\u01b0\u1edbc, lau kh\u00f4.<br \/>\n&#8211; T\u1ea7n su\u1ea5t:<br \/>\n  &#8211; C3: 3\u20136 th\u00e1ng\/l\u1ea7n.<br \/>\n  &#8211; C4: 1\u20133 th\u00e1ng\/l\u1ea7n.<br \/>\n  &#8211; C5\/M (s\u00e1t bi\u1ec3n): 2\u20134 tu\u1ea7n\/l\u1ea7n, ho\u1eb7c x\u1ecbt r\u1eeda nh\u1eb9 h\u00e0ng tu\u1ea7n trong m\u00f9a gi\u00f3 mu\u1ed1i.<br \/>\n&#8211; Tr\u00e1nh ho\u00e0n to\u00e0n: Javen\/thu\u1ed1c t\u1ea9y ch\u1ee9a chloride, b\u00fai s\u1eaft, gi\u1ea5y nh\u00e1m th\u00f4.<br \/>\n&#8211; Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 m\u1ed1i h\u00e0n, khe h\u1edf, si\u1ebft l\u1ea1i bulong, v\u1ec7 sinh mu\u1ed1i \u0111\u1ecdng \u1edf m\u1eb7t khu\u1ea5t.<\/p>\n<h2 id=\"toc-7-chi-phi-va-bai-toan-vong-doi\"><span class=\"ez-toc-section\" id=\"Chi_phi_va_bai_toan_vong_doi\"><\/span>Chi ph\u00ed v\u00e0 b\u00e0i to\u00e1n v\u00f2ng \u0111\u1eddi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u01b0\u01a1ng quan gi\u00e1 v\u1eadt li\u1ec7u th\u01b0\u1eddng g\u1eb7p:<br \/>\n  &#8211; 201 \u2248 60\u201370% gi\u00e1 304.<br \/>\n  &#8211; 316 \u2248 130\u2013160% gi\u00e1 304.<br \/>\n&#8211; Tuy nhi\u00ean, trong C4\u2013C5, 316\/2205 th\u01b0\u1eddng r\u1ebb h\u01a1n v\u1ec1 chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) do gi\u1ea3m b\u1ea3o tr\u00ec\/kh\u00f4ng ph\u1ea3i thay s\u1edbm.<br \/>\n&#8211; Quy t\u1eafc: n\u1ebfu y\u00eau c\u1ea7u tu\u1ed5i th\u1ecd >15 n\u0103m ngo\u00e0i tr\u1eddi, ven bi\u1ec3n\/\u00f4 nhi\u1ec5m, t\u0103ng m\u1ed9t c\u1ea5p m\u00e1c s\u1ebd ti\u1ebft ki\u1ec7m chi ph\u00ed t\u1ed5ng th\u1ec3.<\/p>\n<h2 id=\"toc-8-quy-trinh-chon-nhanh-ap-dung-tai-cong-trinh\"><span class=\"ez-toc-section\" id=\"Quy_trinh_chon_nhanh_ap_dung_tai_cong_trinh\"><\/span>Quy tr\u00ecnh ch\u1ecdn nhanh (\u00e1p d\u1ee5ng t\u1ea1i c\u00f4ng tr\u00ecnh)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u00e2u h\u1ecfi then ch\u1ed1t:<br \/>\n  1) C\u00e1ch b\u1edd bi\u1ec3n bao xa? 2) M\u1ee9c \u00f4 nhi\u1ec5m\/b\u1ee5i? 3) C\u00f3 r\u1eeda \u0111\u1ecbnh k\u1ef3 \u0111\u01b0\u1ee3c kh\u00f4ng? 4) Tu\u1ed5i th\u1ecd\/ th\u1ea9m m\u1ef9 y\u00eau c\u1ea7u?<br \/>\n&#8211; G\u1ee3i \u00fd ch\u1ecdn:<br \/>\n  &#8211; C\u00e1ch bi\u1ec3n >20 km, \u00edt \u00f4 nhi\u1ec5m, c\u00f3 b\u1ea3o tr\u00ec: 304\/304L, ho\u00e0n thi\u1ec7n m\u1ecbn, d\u00e0y chu\u1ea9n.<br \/>\n  &#8211; \u0110\u00f4 th\u1ecb \u00f4 nhi\u1ec5m\/g\u1ea7n KCN: 304L (ph\u1ed5 th\u00f4ng) ho\u1eb7c 316L (trang tr\u00ed\/kh\u00f3 v\u1ec7 sinh).<br \/>\n  &#8211; \u226410 km t\u1edbi bi\u1ec3n ho\u1eb7c s\u00e1t c\u1ea3ng: 316L; chi ti\u1ebft ch\u1ecbu l\u1ef1c\/kh\u1eafc nghi\u1ec7t: 2205.<br \/>\n  &#8211; Tr\u00e1nh 201 cho lan can, tay v\u1ecbn, bi\u1ec3n hi\u1ec7u ngo\u00e0i tr\u1eddi n\u1ebfu kh\u00f4ng c\u00f3 che ch\u1eafn v\u00e0 b\u1ea3o tr\u00ec ch\u1eb7t.<\/p>\n<h2 id=\"toc-9-loi-thuong-gap-can-tranh\"><span class=\"ez-toc-section\" id=\"Loi_thuong_gap_can_tranh\"><\/span>L\u1ed7i th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u00f9ng 201 cho lan can\/bi\u1ec3n hi\u1ec7u ven bi\u1ec3n \u2192 \u1ed1 v\u00e0 r\u1ed7 nhanh.<br \/>\n&#8211; Kh\u00f4ng t\u1ea9y\/kh\u00f4ng th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n \u2192 \u1ed1 v\u00e0ng, r\u1ea1n r\u1ed7 c\u1ea1nh m\u1ed1i.<br \/>\n&#8211; \u0110\u00e1nh x\u01b0\u1edbc qu\u00e1 th\u00f4 ho\u1eb7c d\u00f9ng b\u00fai s\u1eaft \u2192 nhi\u1ec5m s\u1eaft, \u1ed1 tr\u00e0.<br \/>\n&#8211; Thi\u1ebft k\u1ebf c\u00f3 khe b\u1eaby n\u01b0\u1edbc, kh\u00f4ng tho\u00e1t \u2192 \u0103n m\u00f2n k\u1ebd h\u1edf.<br \/>\n&#8211; Pha tr\u1ed9n bulong th\u00e9p carbon v\u1edbi inox \u2192 r\u1ec9 loang, \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.<\/p>\n<h2 id=\"toc-10-vi-du-cau-hinh-khuyen-nghi-theo-hang-muc\"><span class=\"ez-toc-section\" id=\"Vi_du_cau_hinh_khuyen_nghi_theo_hang_muc\"><\/span>V\u00ed d\u1ee5 c\u1ea5u h\u00ecnh khuy\u1ebfn ngh\u1ecb theo h\u1ea1ng m\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Lan can chung c\u01b0 ven bi\u1ec3n (C4\u2013C5): 316L, tr\u1ee5 \u03d550\u00d71,8\u20132,0 mm, tay v\u1ecbn \u03d550\u00d71,5\u20131,8 mm; ho\u00e0n thi\u1ec7n hairline #320; bulong A4-70; pickling + passivation; r\u1eeda 2\u20134 tu\u1ea7n\/l\u1ea7n.<br \/>\n&#8211; Lan can n\u1ed9i \u0111\u00f4 (C3): 304L, tr\u1ee5 \u03d538\u201350\u00d71,2\u20131,5 mm; \u0111\u1ed1 \u03d525\u00d71,0\u20131,2 mm; satin #240; bulong A2-70; r\u1eeda qu\u00fd\/l\u1ea7n.<br \/>\n&#8211; \u1ed0p m\u1eb7t d\u1ef1ng: 304L\/316L t\u1ea5m 1,2\u20131,5 mm, BA ho\u1eb7c hairline; khung \u0111\u1ee1 304L\/316L; khe tho\u00e1t n\u01b0\u1edbc k\u00edn \u0111\u00e1o.<br \/>\n&#8211; M\u00e1i\/t\u1ea5m s\u00f3ng g\u1ea7n bi\u1ec3n: 316 d\u00e0y 0,5\u20130,6 mm; v\u00edt t\u1ef1 khoan A4 v\u1edbi \u0111\u1ec7m EPDM; ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 mu\u1ed1i \u0111\u1ecdng \u1edf s\u00f3ng \u00e2m.<\/p>\n<h2 id=\"toc-11-mua-hang-va-kiem-soat-chat-luong\"><span class=\"ez-toc-section\" id=\"Mua_hang_va_kiem_soat_chat_luong\"><\/span>Mua h\u00e0ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (MTC) theo ASTM\/JIS\/EN; ki\u1ec3m tra th\u00e0nh ph\u1ea7n Ni, Mo \u0111\u00e1p \u1ee9ng m\u00e1c; \u0111\u1eb7t \u201cL\u201d khi c\u00f3 h\u00e0n.<br \/>\n&#8211; \u0110\u1eb7t \u0111\u00fang ti\u00eau chu\u1ea9n d\u1ea1ng s\u1ea3n ph\u1ea9m: t\u1ea5m\/coil theo ASTM A240; \u1ed1ng trang tr\u00ed ASTM A554; \u1ed1ng c\u00f4ng nghi\u1ec7p A312; bulong theo ph\u00e2n h\u1ea1ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng A2\/A4.<br \/>\n&#8211; Ki\u1ec3m tra ngo\u1ea1i quan: b\u1ec1 m\u1eb7t, x\u01b0\u1edbc, c\u00e1n m\u00e9p; \u0111o \u0111\u1ed9 d\u00e0y th\u1ef1c; th\u1eed mu\u1ed1i phun (n\u1ebfu y\u00eau c\u1ea7u).<br \/>\n&#8211; Th\u1ed1ng nh\u1ea5t quy tr\u00ecnh ho\u00e0n thi\u1ec7n: s\u1ed1 h\u1ea1t nh\u00e1m, h\u01b0\u1edbng x\u01b0\u1edbc, y\u00eau c\u1ea7u t\u1ea9y\/ th\u1ee5 \u0111\u1ed9ng h\u00f3a sau l\u1eafp.<\/p>\n<h2 id=\"toc-12-khi-nao-can-nhac-inox-dac-biet\"><span class=\"ez-toc-section\" id=\"Khi_nao_can_nhac_Inox_dac_biet\"><\/span>Khi n\u00e0o c\u00e2n nh\u1eafc Inox \u0111\u1eb7c bi\u1ec7t?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 444 cho m\u00e1i\/m\u00e1ng x\u1ed1i ven bi\u1ec3n: kh\u00e1ng chloride t\u1ed1t, gi\u00e1 d\u1ec5 ch\u1ecbu h\u01a1n 316; c\u1ea7n nh\u00e0 gia c\u00f4ng c\u00f3 kinh nghi\u1ec7m ferritic.<br \/>\n&#8211; 2205 Duplex: k\u1ebft c\u1ea5u s\u00e1t bi\u1ec3n, y\u00eau c\u1ea7u c\u01a1 t\u00ednh cao v\u00e0 kh\u00e1ng r\u1ed7 v\u01b0\u1ee3t tr\u1ed9i; c\u1ea7n th\u1ee3 h\u00e0n \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n duplex.<\/p>\n<h2 id=\"toc-13-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>&#8211; M\u00f4i tr\u01b0\u1eddng quy\u1ebft \u0111\u1ecbnh m\u00e1c: 304\/304L \u0111\u1ee7 t\u1ed1t cho C3; 316\/316L l\u00e0 chu\u1ea9n an to\u00e0n cho C4\u2013C5; 201 ch\u1ec9 n\u00ean d\u00f9ng khi c\u00f3 che ch\u1eafn v\u00e0 b\u1ea3o tr\u00ec ch\u1eb7t, ch\u1ea5p nh\u1eadn r\u1ee7i ro.<br \/>\n&#8211; B\u1ec1 m\u1eb7t m\u1ecbn, thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc, h\u00e0n \u0111\u00fang quy tr\u00ecnh v\u00e0 b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3 quan tr\u1ecdng kh\u00f4ng k\u00e9m m\u00e1c th\u00e9p.<br \/>\n&#8211; V\u1edbi c\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi mi\u1ec1n B\u1eafc n\u00f3ng \u1ea9m, n\u1ebfu b\u0103n kho\u0103n gi\u1eefa 304 v\u00e0 316, h\u00e3y \u01b0u ti\u00ean 316\/316L cho khu v\u1ef1c \u00f4 nhi\u1ec5m\/ven bi\u1ec3n ho\u1eb7c khi y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 b\u1ec1n l\u00e2u; chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u01b0\u1eddng th\u1ea5p h\u01a1n.<br \/>\n\u00c1p d\u1ee5ng c\u00e1c khuy\u1ebfn ngh\u1ecb tr\u00ean, b\u1ea1n s\u1ebd c\u00f3 h\u1ec7 Inox ngo\u00e0i tr\u1eddi b\u1ec1n \u0111\u1eb9p, \u00edt b\u1ea3o tr\u00ec v\u00e0 t\u1ed1i \u01b0u ng\u00e2n s\u00e1ch su\u1ed1t v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch ch\u1ecdn Inox ngo\u00e0i tr\u1eddi cho kh\u00ed h\u1eadu n\u00f3ng \u1ea9m mi\u1ec1n B\u1eafc: khi d\u00f9ng 304\/304L hay 316\/316L, tr\u00e1nh 201; khuy\u1ebfn ngh\u1ecb b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y, h\u00e0n v\u00e0 b\u1ea3o tr\u00ec.<\/p>\n","protected":false},"author":7,"featured_media":1004,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1140","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\/1140","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=1140"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1140\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1004"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}