{"id":1259,"date":"2025-11-03T00:34:32","date_gmt":"2025-11-02T17:34:32","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/mang-xoi-inox-304-cho-mai-nha-chong-ri-set-tron-doi-ben-vuot-troi\/"},"modified":"2025-11-03T00:34:32","modified_gmt":"2025-11-02T17:34:32","slug":"mang-xoi-inox-304-cho-mai-nha-chong-ri-set-tron-doi-ben-vuot-troi","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/mang-xoi-inox-304-cho-mai-nha-chong-ri-set-tron-doi-ben-vuot-troi\/","title":{"rendered":"M\u00e1ng x\u1ed1i Inox 304 cho m\u00e1i nh\u00e0: ch\u1ed1ng r\u1ec9 s\u00e9t tr\u1ecdn \u0111\u1eddi, b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-vi-sao-inox-304-chong-ri-set-vuot-troi\">V\u00ec sao Inox 304 ch\u1ed1ng r\u1ec9 s\u00e9t v\u01b0\u1ee3t tr\u1ed9i?<\/a><\/li>\n<li><a href=\"#toc-1-so-sanh-nhanh-cac-vat-lieu-mang-xoi-pho-bien\">So s\u00e1nh nhanh c\u00e1c v\u1eadt li\u1ec7u m\u00e1ng x\u1ed1i ph\u1ed5 bi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-2-thong-so-ky-thuat-khuyen-nghi-cho-mang-xoi-inox-30\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt khuy\u1ebfn ngh\u1ecb cho m\u00e1ng x\u1ed1i inox 304<\/a><\/li>\n<li><a href=\"#toc-3-tinh-toan-nhanh-luu-luong-va-chon-kich-thuoc\">T\u00ednh to\u00e1n nhanh l\u01b0u l\u01b0\u1ee3ng v\u00e0 ch\u1ecdn k\u00edch th\u01b0\u1edbc<\/a><\/li>\n<li><a href=\"#toc-4-huong-dan-thi-cong-chuan-cho-tuoi-tho-toi-da\">H\u01b0\u1edbng d\u1eabn thi c\u00f4ng chu\u1ea9n cho tu\u1ed5i th\u1ecd t\u1ed1i \u0111a<\/a><\/li>\n<li><a href=\"#toc-5-bao-tri-va-ve-sinh-dung-cach\">B\u1ea3o tr\u00ec v\u00e0 v\u1ec7 sinh \u0111\u00fang c\u00e1ch<\/a><\/li>\n<li><a href=\"#toc-6-chi-phi-va-hieu-qua-vong-doi-lcc\">Chi ph\u00ed v\u00e0 hi\u1ec7u qu\u1ea3 v\u00f2ng \u0111\u1eddi (LCC)<\/a><\/li>\n<li><a href=\"#toc-7-cac-loi-thuong-gap-va-cach-tranh\">C\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/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\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>M\u00e1ng x\u1ed1i l\u00e0 m\u1eaft x\u00edch quan tr\u1ecdng trong h\u1ec7 bao che m\u00e1i \u2013 t\u01b0\u1eddng c\u1ee7a m\u1ecdi c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng v\u00e0 c\u00f4ng nghi\u1ec7p. V\u1edbi kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi \u1ea9m, m\u01b0a l\u1edbn theo m\u00f9a nh\u01b0 H\u00e0 N\u1ed9i, l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u m\u00e1ng x\u1ed1i quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp tu\u1ed5i th\u1ecd m\u00e1i v\u00e0 t\u01b0\u1eddng. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn chuy\u00ean s\u00e2u \u0111\u1ec3 b\u1ea1n \u1ee9ng d\u1ee5ng m\u00e1ng x\u1ed1i inox 304 nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p ch\u1ed1ng r\u1ec9 s\u00e9t g\u1ea7n nh\u01b0 v\u0129nh vi\u1ec5n cho m\u00e1i nh\u00e0 v\u00e0 nh\u00e0 x\u01b0\u1edfng.<\/p>\n<h2 id=\"toc-0-vi-sao-inox-304-chong-ri-set-vuot-troi\">V\u00ec sao Inox 304 ch\u1ed1ng r\u1ec9 s\u00e9t v\u01b0\u1ee3t tr\u1ed9i?<\/h2>\n<p>&#8211; Th\u00e0nh ph\u1ea7n v\u00e0 c\u01a1 ch\u1ebf th\u1ee5 \u0111\u1ed9ng h\u00f3a: Inox 304 (SUS304\/1.4301) ch\u1ee9a kho\u1ea3ng 18% Cr v\u00e0 8\u201310.5% Ni. Crom t\u1ea1o l\u1edbp m\u00e0ng \u00f4x\u00edt Cr2O3 si\u00eau m\u1ecfng, t\u1ef1 ph\u1ee5c h\u1ed3i khi b\u1ecb tr\u1ea7y x\u01b0\u1edbc, gi\u00fap 304 ch\u1ed1ng \u0103n m\u00f2n kh\u00ed quy\u1ec3n v\u00e0 m\u01b0a axit t\u1ed1t h\u01a1n h\u1eb3n th\u00e9p m\u1ea1 k\u1ebdm.<br \/>\n&#8211; Ch\u1ec9 s\u1ed1 ch\u1ed1ng r\u1ed7 (PREN): 304 c\u00f3 PREN kho\u1ea3ng 18\u201319, ph\u00f9 h\u1ee3p h\u1ea7u h\u1ebft m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb \u2013 n\u1ed9i \u0111\u1ecba. V\u1edbi v\u00f9ng s\u01b0\u01a1ng mu\u1ed1i bi\u1ec3n ho\u1eb7c h\u01a1i clo \u0111\u1eadm \u0111\u1eb7c, c\u00e2n nh\u1eafc 316 (PREN ~24).<br \/>\n&#8211; \u0110i\u1ec1u ki\u1ec7n Vi\u1ec7t Nam: \u1ede H\u00e0 N\u1ed9i v\u00e0 c\u00e1c t\u1ec9nh n\u1ed9i \u0111\u1ecba, 304 \u0111\u1ea1t \u0111\u1ed9 b\u1ec1n 20\u201340+ n\u0103m n\u1ebfu thi\u1ebft k\u1ebf, thi c\u00f4ng, b\u1ea3o tr\u00ec \u0111\u00fang chu\u1ea9n. \u1ede v\u00f9ng ven bi\u1ec3n (\u22645 km b\u1edd bi\u1ec3n) ho\u1eb7c g\u1ea7n nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, c\u1ea7n t\u0103ng c\u01b0\u1eddng v\u1ec7 sinh, x\u1eed l\u00fd b\u1ec1 m\u1eb7t ho\u1eb7c chuy\u1ec3n sang 316.<\/p>\n<h2 id=\"toc-1-so-sanh-nhanh-cac-vat-lieu-mang-xoi-pho-bien\">So s\u00e1nh nhanh c\u00e1c v\u1eadt li\u1ec7u m\u00e1ng x\u1ed1i ph\u1ed5 bi\u1ebfn<\/h2>\n<h3>Inox 304 vs Inox 201<\/h3>\n<p>&#8211; 201 ch\u1ee9a Ni th\u1ea5p (\u22483.5\u20135.5%), Mn cao, ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n; d\u1ec5 \u201c\u1ed1 tr\u00e0\u201d v\u00e0 r\u1ec9 nh\u1eb9 ngo\u00e0i tr\u1eddi sau v\u00e0i m\u00f9a m\u01b0a.<br \/>\n&#8211; 304 \u1ed5n \u0111\u1ecbnh trong m\u01b0a axit, \u00edt \u1ed1 b\u1ec1 m\u1eb7t n\u1ebfu v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3. L\u01b0u \u00fd ki\u1ec3m \u0111\u1ecbnh: y\u00eau c\u1ea7u MTC (Mill Test Certificate) ho\u1eb7c ki\u1ec3m tra PMI\/XRF; nam ch\u00e2m kh\u00f4ng ph\u1ea3i ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh tin c\u1eady (304 c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb nh\u1eb9 sau gia c\u00f4ng ngu\u1ed9i).<\/p>\n<h3>Inox 304 vs Inox 316<\/h3>\n<p>&#8211; 316 (c\u00f3 Mo \u22482\u20132.5%) ch\u1ed1ng r\u1ed7 pitting do chloride t\u1ed1t h\u01a1n; khuy\u1ebfn ngh\u1ecb cho c\u00f4ng tr\u00ecnh ven bi\u1ec3n, khu c\u00f4ng nghi\u00ea\u0323p h\u00f3a ch\u1ea5t.<br \/>\n&#8211; N\u1ed9i \u0111\u1ecba nh\u01b0 H\u00e0 N\u1ed9i: 304 \u0111\u00e1p \u1ee9ng h\u1ea7u h\u1ebft nhu c\u1ea7u v\u1edbi chi ph\u00ed h\u1ee3p l\u00fd h\u01a1n (th\u01b0\u1eddng r\u1ebb h\u01a1n 316 kho\u1ea3ng 20\u201335%).<\/p>\n<h3>Inox 304 vs t\u00f4n m\u1ea1 k\u1ebdm, nh\u1ef1a PVC, nh\u00f4m<\/h3>\n<p>&#8211; T\u00f4n m\u1ea1 k\u1ebdm: gi\u00e1 \u0111\u1ea7u t\u01b0 th\u1ea5p nh\u01b0ng tu\u1ed5i th\u1ecd 5\u201310 n\u0103m, d\u1ec5 r\u1ec9 t\u1ea1i m\u00e9p c\u1eaft \u2013 m\u1ed1i n\u1ed1i, ph\u1ea3i s\u01a1n\/ph\u1ee7 \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; PVC: nh\u1eb9, r\u1ebb, nh\u01b0ng l\u00e3o h\u00f3a UV, gi\u00f2n n\u1ee9t sau 3\u20137 n\u0103m, d\u1ec5 cong v\u00f5ng khi n\u1eafng n\u00f3ng.<br \/>\n&#8211; Nh\u00f4m: ch\u1ed1ng r\u1ec9 t\u1ed1t, nh\u1eb9; tuy nhi\u00ean d\u1ec5 m\u00f3p, gi\u00e3n n\u1edf nhi\u1ec7t l\u1edbn, m\u1ed1i n\u1ed1i c\u1ea7n x\u1eed l\u00fd c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh r\u00f2 r\u1ec9.<br \/>\n&#8211; Inox 304: chi ph\u00ed \u0111\u1ea7u t\u01b0 cao h\u01a1n, nh\u01b0ng b\u1ec1n c\u01a1 h\u1ecdc \u2013 nhi\u1ec7t t\u1ed1t, kh\u00f4ng l\u00e3o h\u00f3a UV, ch\u1ed1ng r\u1ec9 s\u00e9t v\u01b0\u1ee3t tr\u1ed9i; chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p.<\/p>\n<h2 id=\"toc-2-thong-so-ky-thuat-khuyen-nghi-cho-mang-xoi-inox-30\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt khuy\u1ebfn ngh\u1ecb cho m\u00e1ng x\u1ed1i inox 304<\/h2>\n<p>&#8211; Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u: ASTM A240\/A666 (t\u1ea5m\/l\u00e1), JIS G4305 (SUS304), EN 10088 (1.4301). Y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t \u0111\u1ed3ng \u0111\u1ec1u, kh\u00f4ng t\u1ea1p b\u1ea9n s\u1eaft t\u1ef1 do.<br \/>\n&#8211; B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n:<br \/>\n  &#8211; 2B: kinh t\u1ebf, s\u00e1ng m\u1edd, d\u1ec5 v\u1ec7 sinh.<br \/>\n  &#8211; No.4\/Hairline: th\u1ea9m m\u1ef9, \u201cgi\u1ea5u\u201d x\u01b0\u1edbc nh\u1eb9, ph\u00f9 h\u1ee3p nh\u00e0 \u1edf cao c\u1ea5p.<br \/>\n  &#8211; BA\/PVD m\u00e0u: d\u00f9ng khi y\u00eau c\u1ea7u ki\u1ebfn tr\u00fac; c\u1ea7n \u0111\u01a1n v\u1ecb gia c\u00f4ng uy t\u00edn.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; Nh\u00e0 ph\u1ed1\/m\u00e1i t\u00f4n: 0.5\u20130.6 mm cho m\u00e1ng, 0.5 mm cho \u1ed1ng \u0111\u1ee9ng.<br \/>\n  &#8211; Nh\u00e0 x\u01b0\u1edfng\/m\u00e1i r\u1ed9ng: 0.7\u20131.0 mm cho m\u00e1ng, 0.6\u20130.8 mm cho \u1ed1ng.<br \/>\n&#8211; Ki\u1ec3u d\u00e1ng (profile):<br \/>\n  &#8211; B\u00e1n nguy\u1ec7t (half-round): tho\u00e1t n\u01b0\u1edbc t\u1ed1t, t\u1ef1 l\u00e0m s\u1ea1ch cao.<br \/>\n  &#8211; K-style\/Ch\u1eef K: t\u0103ng th\u1ea9m m\u1ef9 m\u1eb7t ti\u1ec1n.<br \/>\n  &#8211; H\u1ed9p (box): dung t\u00edch l\u1edbn, g\u1ecdn v\u1edbi m\u00e1i c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; Ph\u1ee5 ki\u1ec7n \u0111\u1ed3ng b\u1ed9: \u0111\u1ea7u b\u1ecbt, c\u00fat g\u00f3c, ph\u1ec5u thu (outlet), l\u00e1 ch\u1eafn r\u00e1c (leaf guard), k\u1eb9p treo, \u0111ai \u1ed1ng, ph\u00e1 d\u00f2ng (splash guard).<\/p>\n<h2 id=\"toc-3-tinh-toan-nhanh-luu-luong-va-chon-kich-thuoc\">T\u00ednh to\u00e1n nhanh l\u01b0u l\u01b0\u1ee3ng v\u00e0 ch\u1ecdn k\u00edch th\u01b0\u1edbc<\/h2>\n<p>&#8211; C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n: Q = i \u00d7 A \u00d7 C<br \/>\n  &#8211; Q: l\u01b0u l\u01b0\u1ee3ng m\u01b0a (l\/s)<br \/>\n  &#8211; i: c\u01b0\u1eddng \u0111\u1ed9 m\u01b0a thi\u1ebft k\u1ebf (mm\/h)<br \/>\n  &#8211; A: di\u1ec7n t\u00edch m\u00e1i hi\u1ec7u d\u1ee5ng (m\u00b2)<br \/>\n  &#8211; C: h\u1ec7 s\u1ed1 d\u00f2ng ch\u1ea3y (0.9 cho m\u00e1i t\u00f4n\/inox)<br \/>\n&#8211; G\u1ee3i \u00fd i thi\u1ebft k\u1ebf theo kinh nghi\u1ec7m:<br \/>\n  &#8211; Nh\u00e0 \u1edf H\u00e0 N\u1ed9i: 120\u2013180 mm\/h<br \/>\n  &#8211; Nh\u00e0 x\u01b0\u1edfng\/m\u00e1i l\u1edbn: 180\u2013240 mm\/h<br \/>\n&#8211; Ch\u1ecdn \u1ed1ng \u0111\u1ee9ng (tham kh\u1ea3o b\u1ea3o th\u1ee7):<br \/>\n  &#8211; \u00d890 mm (tr\u00f2n) ~ 3.5\u20134.5 l\/s<br \/>\n  &#8211; \u00d8100\u2013110 mm ~ 5\u20138 l\/s<br \/>\n  &#8211; \u00d8120\u2013150 mm ~ 9\u201316 l\/s<br \/>\n&#8211; V\u00ed d\u1ee5 1 \u2013 Nh\u00e0 ph\u1ed1 2 m\u00e1i, t\u1ed5ng 100 m\u00b2 (m\u1ed7i m\u00e1i 50 m\u00b2), i = 150 mm\/h:<br \/>\n  &#8211; Q m\u1ed7i m\u00e1i = 150 \u00d7 50 \/ 3600 \u00d7 0.9 \u2248 1.875 l\/s \u2192 1 \u1ed1ng \u00d890 mm \u0111\u1ee7.<br \/>\n  &#8211; M\u00e1ng: lo\u1ea1i 125 mm b\u00e1n nguy\u1ec7t ho\u1eb7c h\u1ed9p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (ti\u1ebft di\u1ec7n \u22655000\u20136000 mm\u00b2).<br \/>\n&#8211; V\u00ed d\u1ee5 2 \u2013 Nh\u00e0 x\u01b0\u1edfng m\u00e1i 600 m\u00b2, i = 200 mm\/h:<br \/>\n  &#8211; Q = 200 \u00d7 600 \/ 3600 \u00d7 0.9 \u2248 30 l\/s.<br \/>\n  &#8211; B\u1ed1 tr\u00ed 4 \u1ed1ng \u00d8120\u2013150 mm ho\u1eb7c 5\u20136 \u1ed1ng \u00d8110 mm d\u1ecdc chu vi, k\u1ebft h\u1ee3p m\u00e1ng h\u1ed9p l\u1edbn (ti\u1ebft di\u1ec7n \u226515,000\u201320,000 mm\u00b2). \u01afu ti\u00ean chia l\u01b0u l\u01b0\u1ee3ng theo nh\u1ecbp c\u1ed9t.<\/p>\n<h2 id=\"toc-4-huong-dan-thi-cong-chuan-cho-tuoi-tho-toi-da\">H\u01b0\u1edbng d\u1eabn thi c\u00f4ng chu\u1ea9n cho tu\u1ed5i th\u1ecd t\u1ed1i \u0111a<\/h2>\n<h3>Chu\u1ea9n b\u1ecb v\u1eadt t\u01b0 v\u00e0 ki\u1ec3m \u0111\u1ecbnh<\/h3>\n<p>&#8211; Y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 MTC, ki\u1ec3m tra PMI\/XRF ng\u1eabu nhi\u00ean \u0111\u1ec3 x\u00e1c th\u1ef1c SUS304.<br \/>\n&#8211; D\u00f9ng v\u00edt\/Inox A2-70 ho\u1eb7c A4 (ven bi\u1ec3n), long \u0111en EPDM; tr\u00e1nh v\u00edt th\u00e9p th\u01b0\u1eddng.<br \/>\n&#8211; Keo tr\u00e1m: silicone trung t\u00ednh (neutral-cure), kh\u00f4ng d\u00f9ng silicone axetoxy ho\u1eb7c keo ch\u1ee9a clo.<\/p>\n<h3>B\u1ed1 tr\u00ed \u0111\u1ed9 d\u1ed1c, treo \u0111\u1ee1<\/h3>\n<p>&#8211; \u0110\u1ed9 d\u1ed1c m\u00e1ng: 0.5\u20131% h\u01b0\u1edbng v\u1ec1 ph\u1ec5u\/\u1ed1ng \u0111\u1ee9ng. V\u1edbi nh\u1ecbp d\u00e0i, chia 2 chi\u1ec1u d\u1ed1c v\u1ec1 gi\u1eefa.<br \/>\n&#8211; Kho\u1ea3ng c\u00e1ch k\u1eb9p treo:<br \/>\n  &#8211; Nh\u00e0 \u1edf: 600\u2013900 mm.<br \/>\n  &#8211; Nh\u00e0 x\u01b0\u1edfng: 800\u20131200 mm (t\u00f9y \u0111\u1ed9 d\u00e0y).<br \/>\n&#8211; M\u00e9p m\u00e1i nh\u00f4 v\u00e0o m\u00e1ng 1\/3\u20131\/2 b\u1ec1 r\u1ed9ng \u0111\u1ec3 h\u1ee9ng tr\u1ecdn d\u00f2ng ch\u1ea3y.<\/p>\n<h3>M\u1ed1i n\u1ed1i v\u00e0 h\u00e0n<\/h3>\n<p>&#8211; M\u1ed1i n\u1ed1i ch\u1ed3ng m\u00e9p 25\u201340 mm + \u0111inh r\u00fat inox + keo k\u00edn; ho\u1eb7c h\u00e0n TIG\/laser li\u00ean t\u1ee5c cho m\u00e1ng h\u1ed9p c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; Sau h\u00e0n: t\u1ea9y m\u1ed1i h\u00e0n (pickling) v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) \u0111\u1ec3 ph\u1ee5c h\u1ed3i l\u1edbp m\u00e0ng Cr2O3; r\u1eeda s\u1ea1ch tr\u01b0\u1edbc b\u00e0n giao.<\/p>\n<h3>Gi\u00e3n n\u1edf nhi\u1ec7t v\u00e0 chi\u1ec1u d\u00e0i nh\u1ecbp<\/h3>\n<p>&#8211; H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf inox 304 \u2248 17.2 \u00b5m\/m\u00b7\u00b0C. Bi\u00ean \u0111\u1ed9 nhi\u1ec7t m\u00e1i \u1edf mi\u1ec1n B\u1eafc c\u00f3 th\u1ec3 40\u00b0C.<br \/>\n&#8211; Chi\u1ec1u d\u00e0i 12 m gi\u00e3n n\u1edf \u2248 8.3 mm; c\u1ea7n khe gi\u00e3n n\u1edf ho\u1eb7c m\u0103ng s\u00f4ng tr\u01b0\u1ee3t cho nh\u1ecbp >10\u201312 m; kh\u00f4ng si\u1ebft c\u1ee9ng hai \u0111\u1ea7u.<\/p>\n<h3>Gi\u1ea3m \u1ed3n v\u00e0 ch\u1ed1ng rung<\/h3>\n<p>&#8211; L\u00f3t b\u0103ng keo EPDM\/foam t\u1ea1i g\u1ed1i \u0111\u1ee1; tr\u00e1nh \u0111\u1ec3 t\u1ea5m inox ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp kim lo\u1ea1i c\u1ee9ng.<br \/>\n&#8211; L\u1eafp l\u00e1 ch\u1eafn r\u00e1c \u0111\u1ec3 tr\u00e1nh tr\u00e0n do t\u1eafc ngh\u1ebdn \u2013 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y \u1ed3n v\u00e0 r\u00f2 n\u01b0\u1edbc.<\/p>\n<h3>Ch\u1ed1ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a v\u00e0 an to\u00e0n<\/h3>\n<p>&#8211; Tr\u00e1nh ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp inox v\u1edbi th\u00e9p carbon\/\u0111\u1ed3ng\/k\u1ebdm \u1edf n\u01a1i \u1ea9m \u01b0\u1edbt; n\u1ebfu c\u1ea7n, d\u00f9ng gio\u0103ng c\u00e1ch \u0111i\u1ec7n ho\u1eb7c s\u01a1n c\u00e1ch ly.<br \/>\n&#8211; X\u1eed l\u00fd m\u00e9p c\u1eaft: m\u00e0i bo, lo\u1ea1i b\u1ecf ba via \u0111\u1ec3 tr\u00e1nh t\u1eadp trung \u1ee9ng su\u1ea5t v\u00e0 c\u1eaft r\u00e1ch m\u00e0ng n\u01b0\u1edbc.<\/p>\n<h2 id=\"toc-5-bao-tri-va-ve-sinh-dung-cach\">B\u1ea3o tr\u00ec v\u00e0 v\u1ec7 sinh \u0111\u00fang c\u00e1ch<\/h2>\n<p>&#8211; L\u1ecbch b\u1ea3o tr\u00ec:<br \/>\n  &#8211; Nh\u00e0 \u1edf \u0111\u00f4 th\u1ecb: 6 th\u00e1ng\/l\u1ea7n v\u1ec7 sinh r\u00e1c, l\u00e1 c\u00e2y; sau c\u01a1n m\u01b0a b\u00e3o l\u1edbn ki\u1ec3m tra ngay.<br \/>\n  &#8211; Khu c\u00f4ng nghi\u1ec7p\/ven bi\u1ec3n: 3 th\u00e1ng\/l\u1ea7n v\u00e0 x\u1ecbt r\u1eeda n\u01b0\u1edbc s\u1ea1ch \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 h\u1ea1n ch\u1ebf mu\u1ed1i\/b\u1ee5i c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; V\u1ec7 sinh: d\u00f9ng n\u01b0\u1edbc s\u1ea1ch + x\u00e0 ph\u00f2ng trung t\u00ednh, v\u1ea3i m\u1ec1m; kh\u00f4ng d\u00f9ng b\u00e0n ch\u1ea3i th\u00e9p, kh\u00f4ng d\u00f9ng h\u00f3a ch\u1ea5t ch\u1ee9a clo\/axit m\u1ea1nh. R\u1eeda tr\u00f4i c\u1eb7n xi m\u0103ng sau thi c\u00f4ng ho\u00e0n thi\u1ec7n \u0111\u1ec3 tr\u00e1nh \u1ed1 b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-6-chi-phi-va-hieu-qua-vong-doi-lcc\">Chi ph\u00ed v\u00e0 hi\u1ec7u qu\u1ea3 v\u00f2ng \u0111\u1eddi (LCC)<\/h2>\n<p>&#8211; Th\u1ef1c t\u1ebf th\u1ecb tr\u01b0\u1eddng: m\u00e1ng x\u1ed1i inox 304 th\u01b0\u1eddng cao h\u01a1n t\u00f4n m\u1ea1 k\u1ebdm kho\u1ea3ng 1.8\u20133.0 l\u1ea7n t\u00f9y \u0111\u1ed9 d\u00e0y\/ho\u00e0n thi\u1ec7n; th\u1ea5p h\u01a1n 316 kho\u1ea3ng 20\u201335%.<br \/>\n&#8211; Tu\u1ed5i th\u1ecd \u0111i\u1ec3n h\u00ecnh:<br \/>\n  &#8211; 304: 20\u201340+ n\u0103m (n\u1ed9i \u0111\u1ecba), 10\u201320+ n\u0103m (ven bi\u1ec3n, b\u1ea3o tr\u00ec t\u1ed1t).<br \/>\n  &#8211; T\u00f4n m\u1ea1 k\u1ebdm: 5\u201310 n\u0103m; PVC: 3\u20137 n\u0103m.<br \/>\n&#8211; LCC = Chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u + V\u1ec7 sinh\/b\u1ea3o tr\u00ec \u2013 Chi ph\u00ed thay th\u1ebf. Nh\u1edd s\u1ed1 l\u1ea7n thay th\u1ebf g\u1ea7n nh\u01b0 b\u1eb1ng 0, 304 th\u01b0\u1eddng c\u00f3 t\u1ed5ng chi ph\u00ed 20 n\u0103m th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3.<br \/>\n&#8211; L\u01b0u \u00fd: b\u00e1o gi\u00e1 ph\u1ee5 thu\u1ed9c \u0111\u1ed9 d\u00e0y, profile, b\u1ec1 m\u1eb7t v\u00e0 m\u1ee9c \u0111\u1ed9 gia c\u00f4ng h\u00e0n\/li\u1ec1n m\u1ea1ch. N\u00ean y\u00eau c\u1ea7u b\u00e1o gi\u00e1 k\u00e8m th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng.<\/p>\n<h2 id=\"toc-7-cac-loi-thuong-gap-va-cach-tranh\">C\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; D\u00f9ng inox 201 thay cho 304 nh\u01b0ng qu\u1ea3ng c\u00e1o sai: ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 v\u00e0 th\u1eed PMI.<br \/>\n&#8211; Kh\u00f4ng t\u1ea1o \u0111\u1ed9 d\u1ed1c ho\u1eb7c \u0111i\u1ec3m tr\u0169ng: g\u00e2y \u0111\u1ecdng n\u01b0\u1edbc, \u1ed1 b\u1ec1 m\u1eb7t.<br \/>\n&#8211; M\u1ed1i n\u1ed1i d\u00f9ng silicone axetoxy: g\u00e2y \u0103n m\u00f2n; ch\u1ec9 d\u00f9ng silicone trung t\u00ednh.<br \/>\n&#8211; Kho\u1ea3ng \u0111\u1ee1 qu\u00e1 th\u01b0a: v\u00f5ng m\u00e1ng, \u0111\u1ecdng n\u01b0\u1edbc.<br \/>\n&#8211; Kh\u00f4ng x\u1eed l\u00fd m\u1ed1i h\u00e0n\/passivation: s\u1edbm xu\u1ea5t hi\u1ec7n \u1ed1 tr\u00e0 quanh m\u1ed1i h\u00e0n.<\/p>\n<h2 id=\"toc-8-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; M\u00e1ng inox 304 c\u00f3 ph\u00f9 h\u1ee3p thu n\u01b0\u1edbc m\u01b0a d\u00f9ng sinh ho\u1ea1t? C\u00f3, n\u1ebfu gia c\u00f4ng \u2013 v\u1ec7 sinh \u0111\u00fang chu\u1ea9n, d\u00f9ng ph\u1ee5 ki\u1ec7n an to\u00e0n, kh\u00f4ng d\u00f9ng keo ch\u1ee9a clo.<br \/>\n&#8211; 304 c\u00f3 b\u1ecb h\u00fat nam ch\u00e2m kh\u00f4ng? V\u1eadt li\u1ec7u 304 \u1ee7 m\u1ec1m g\u1ea7n nh\u01b0 kh\u00f4ng t\u1eeb t\u00ednh; sau c\u00e1n\/\u0111\u1ed9t u\u1ed1n c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb nh\u1eb9 \u2013 \u0111\u00e2y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng.<br \/>\n&#8211; C\u00f3 c\u1ea7n s\u01a1n ph\u1ee7 inox 304? Kh\u00f4ng b\u1eaft bu\u1ed9c. C\u00f3 th\u1ec3 s\u01a1n \u0111\u1ec3 \u0111\u1ed3ng b\u1ed9 m\u00e0u ki\u1ebfn tr\u00fac, nh\u01b0ng n\u00ean x\u1eed l\u00fd b\u1ec1 m\u1eb7t\/primer d\u00e0nh cho inox.<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>M\u00e1ng x\u1ed1i inox 304 l\u00e0 gi\u1ea3i ph\u00e1p g\u1ea7n nh\u01b0 \u201cl\u1eafp m\u1ed9t l\u1ea7n, d\u00f9ng nhi\u1ec1u th\u1eadp k\u1ef7\u201d cho m\u00e1i nh\u00e0 v\u00e0 nh\u00e0 x\u01b0\u1edfng t\u1ea1i H\u00e0 N\u1ed9i v\u00e0 c\u00e1c khu v\u1ef1c n\u1ed9i \u0111\u1ecba. \u01afu \u0111i\u1ec3m then ch\u1ed1t: ch\u1ed1ng r\u1ec9 s\u00e9t v\u01b0\u1ee3t tr\u1ed9i, b\u1ec1n c\u01a1 h\u1ecdc \u2013 nhi\u1ec7t, kh\u00f4ng l\u00e3o h\u00f3a UV, chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p. \u0110\u1ec3 \u0111\u1ea1t tu\u1ed5i th\u1ecd t\u1ed1i \u0111a, h\u00e3y:<br \/>\n&#8211; Ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u 304 \u0111\u1ea1t chu\u1ea9n, \u0111\u1ed9 d\u00e0y ph\u00f9 h\u1ee3p.<br \/>\n&#8211; T\u00ednh l\u01b0u l\u01b0\u1ee3ng theo c\u01b0\u1eddng \u0111\u1ed9 m\u01b0a \u0111\u1ecba ph\u01b0\u01a1ng, b\u1ed1 tr\u00ed \u1ed1ng \u0111\u1ee9ng \u0111\u1ee7 t\u1ea3i.<br \/>\n&#8211; Thi c\u00f4ng chu\u1ea9n: \u0111\u1ed9 d\u1ed1c 0.5\u20131%, m\u1ed1i n\u1ed1i k\u00edn, x\u1eed l\u00fd m\u1ed1i h\u00e0n v\u00e0 gi\u00e3n n\u1edf.<br \/>\n&#8211; B\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, v\u1ec7 sinh nh\u1eb9 nh\u00e0ng, tr\u00e1nh h\u00f3a ch\u1ea5t \u0103n m\u00f2n.<\/p>\n<p>Th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1c nguy\u00ean t\u1eafc tr\u00ean, b\u1ea1n s\u1ebd c\u00f3 m\u1ed9t h\u1ec7 m\u00e1ng x\u1ed1i inox 304 ho\u1ea1t \u0111\u1ed9ng b\u1ec1n b\u1ec9, th\u1ea9m m\u1ef9 v\u00e0 g\u1ea7n nh\u01b0 kh\u00f4ng ph\u1ea3i lo r\u1ec9 s\u00e9t trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 m\u00e1ng x\u1ed1i inox 304: c\u01a1 ch\u1ebf ch\u1ed1ng r\u1ec9, ch\u1ecdn \u0111\u1ed9 d\u00e0y\/k\u00edch th\u01b0\u1edbc, t\u00ednh l\u01b0u l\u01b0\u1ee3ng, thi c\u00f4ng, b\u1ea3o tr\u00ec, so s\u00e1nh 201\/316 v\u00e0 chi ph\u00ed t\u1ea1i H\u00e0 N\u1ed9i.<\/p>\n","protected":false},"author":7,"featured_media":1035,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1259","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\/1259","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=1259"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1259\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1035"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}