{"id":1780,"date":"2026-03-14T12:34:27","date_gmt":"2026-03-14T05:34:27","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-cho-nang-luong-tai-tao-chon-mac-thep-toi-uu-cho-khung-pin-va-tua-bin-gio\/"},"modified":"2026-03-14T12:34:27","modified_gmt":"2026-03-14T05:34:27","slug":"inox-cho-nang-luong-tai-tao-chon-mac-thep-toi-uu-cho-khung-pin-va-tua-bin-gio","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-cho-nang-luong-tai-tao-chon-mac-thep-toi-uu-cho-khung-pin-va-tua-bin-gio\/","title":{"rendered":"Inox cho n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o: Ch\u1ecdn m\u00e1c th\u00e9p t\u1ed1i \u01b0u cho khung pin v\u00e0 tua-bin gi\u00f3"},"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-vuot-troi-trong-nang-luong-tai-tao\">V\u00ec sao inox v\u01b0\u1ee3t tr\u1ed9i trong n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o<\/a><\/li>\n<li><a href=\"#toc-1-khung-gia-do-va-mong-pin-mat-troi-lua-chon-mac-ino\">Khung, gi\u00e1 \u0111\u1ee1 v\u00e0 m\u00f3ng pin m\u1eb7t tr\u1eddi: L\u1ef1a ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng<\/a><\/li>\n<li><a href=\"#toc-2-tua-bin-gio-inox-o-dau-la-kinh-te-ky-thuat-nhat\">Tua-bin gi\u00f3: Inox \u1edf \u0111\u00e2u l\u00e0 kinh t\u1ebf \u2013 k\u1ef9 thu\u1eadt nh\u1ea5t?<\/a><\/li>\n<li><a href=\"#toc-3-gia-cong-han-va-hoan-thien-be-mat-inox-cho-pv-va-g\">Gia c\u00f4ng, h\u00e0n v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t inox cho PV v\u00e0 gi\u00f3<\/a><\/li>\n<li><a href=\"#toc-4-kiem-soat-chat-luong-va-nghiem-thu\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 nghi\u1ec7m thu<\/a><\/li>\n<li><a href=\"#toc-5-lua-chon-vat-lieu-theo-kich-ban-du-an-dien-hinh-ta\">L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u theo k\u1ecbch b\u1ea3n d\u1ef1 \u00e1n \u0111i\u1ec3n h\u00ecnh t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-6-chi-phi-vong-doi-lcc-va-toi-uu-hoa\">Chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/a><\/li>\n<li><a href=\"#toc-7-danh-muc-san-pham-inox-phu-hop-cho-pvgio-nguon-cun\">Danh m\u1ee5c s\u1ea3n ph\u1ea9m inox ph\u00f9 h\u1ee3p cho PV\/gi\u00f3 (ngu\u1ed3n cung t\u1eeb H\u00e0 N\u1ed9i)<\/a><\/li>\n<li><a href=\"#toc-8-checklist-nhanh-khi-dat-hang-inox-cho-du-an-pvgio\">Checklist nhanh khi \u0111\u1eb7t h\u00e0ng inox cho d\u1ef1 \u00e1n PV\/gi\u00f3<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o \u0111\u00f2i h\u1ecfi k\u1ebft c\u1ea5u b\u1ec1n 25\u201330 n\u0103m trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. Inox (th\u00e9p kh\u00f4ng g\u1ec9) \u0111\u00e1p \u1ee9ng \u0111\u1ed3ng th\u1eddi \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, ch\u1ecbu \u0103n m\u00f2n v\u00e0 b\u1ea3o tr\u00ec th\u1ea5p, l\u00e0 v\u1eadt li\u1ec7u c\u1ed1t l\u00f5i cho khung\/m\u00f3ng pin m\u1eb7t tr\u1eddi, gi\u00e1 \u0111\u1ee1, bu-l\u00f4ng k\u1eb9p, \u1ed1c v\u00edt, c\u1ecdc\/neo \u0111\u1ea5t, k\u1ebft c\u1ea5u theo d\u00f5i (tracker) v\u00e0 nhi\u1ec1u h\u1ea1ng m\u1ee5c \u201csecondary steel\u201d c\u1ee7a tua-bin gi\u00f3, \u0111\u1eb7c bi\u1ec7t \u1edf v\u00f9ng ven bi\u1ec3n. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn m\u00e1c inox, thi\u1ebft k\u1ebf, thi c\u00f4ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u01b0u cho c\u00e1c d\u1ef1 \u00e1n PV v\u00e0 gi\u00f3 t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2 id=\"toc-0-vi-sao-inox-vuot-troi-trong-nang-luong-tai-tao\">V\u00ec sao inox v\u01b0\u1ee3t tr\u1ed9i trong n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o<\/h2>\n<p>&#8211; Tu\u1ed5i th\u1ecd d\u00e0i v\u00e0 LCOE th\u1ea5p: Ch\u1ecbu th\u1eddi ti\u1ebft, s\u01b0\u01a1ng mu\u1ed1i bi\u1ec3n, m\u01b0a axit, \u00f4 nhi\u1ec5m SOx\/NOx, gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec trong 25\u201330 n\u0103m v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n.<br \/>\n&#8211; \u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc \u1ed5n \u0111\u1ecbnh: \u0110\u1ed9 ch\u1ea3y d\u1ebbo cao h\u01a1n th\u00e9p cacbon m\u1ea1 k\u1ebdm c\u00f9ng kh\u1ed1i l\u01b0\u1ee3ng, gi\u00fap t\u1ed1i \u01b0u ti\u1ebft di\u1ec7n.<br \/>\n&#8211; An to\u00e0n v\u00e0 b\u1ec1n v\u1eefng: Kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf >90%; kh\u00f4ng ph\u00e1t sinh l\u1edbp m\u1ea1 c\u1ea7n thay th\u1ebf tu\u1ea7n ho\u00e0n nh\u01b0 HDG.<br \/>\n&#8211; Kh\u1ea3 n\u0103ng thi c\u00f4ng t\u1ed1t: H\u00e0n, ngu\u1ed9i t\u1ea1o h\u00ecnh, l\u1eafp d\u1ef1ng thu\u1eadn l\u1ee3i; ti\u00eau chu\u1ea9n s\u1eb5n c\u00f3 to\u00e0n c\u1ea7u (ASTM\/EN\/ISO).<\/p>\n<h2 id=\"toc-1-khung-gia-do-va-mong-pin-mat-troi-lua-chon-mac-ino\">Khung, gi\u00e1 \u0111\u1ee1 v\u00e0 m\u00f3ng pin m\u1eb7t tr\u1eddi: L\u1ef1a ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng<\/h2>\n<p>C\u00e1c c\u1ee5m chi ti\u1ebft inox trong h\u1ec7 PV:<br \/>\n&#8211; Gi\u00e1 \u0111\u1ee1\/khung, k\u1eb9p gi\u1eefa\/k\u1eb9p bi\u00ean, ray, li\u00ean k\u1ebft v\u1edbi m\u00f3ng.<br \/>\n&#8211; C\u1ecdc\/neo \u0111\u1ea5t, bu-l\u00f4ng n\u1edf, t\u1ea5m ch\u00e2n \u0111\u1ebf.<br \/>\n&#8211; K\u1ebft c\u1ea5u tracker m\u1ed9t tr\u1ee5c\/hai tr\u1ee5c (li\u00ean k\u1ebft ch\u1ed1t, g\u1ed1i, thanh gi\u1eb1ng).<br \/>\n&#8211; Rooftop PV: v\u00edt t\u1ef1 khoan, bu-l\u00f4ng, \u00ea-cu, p\u00e1t li\u00ean k\u1ebft v\u1edbi m\u00e1i t\u00f4n nh\u00f4m\/th\u00e9p.<\/p>\n<h3>\u0110\u00e1nh gi\u00e1 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n theo ISO 9223<\/h3>\n<p>&#8211; C3 (v\u00f9ng n\u1ed9i \u0111\u1ecba, c\u00f4ng nghi\u1ec7p nh\u1eb9): \u0103n m\u00f2n trung b\u00ecnh.<br \/>\n&#8211; C4 (ven bi\u1ec3n 5\u201320 km, \u0111\u00f4 th\u1ecb c\u00f4ng nghi\u1ec7p): \u0103n m\u00f2n cao.<br \/>\n&#8211; C5 (ven bi\u1ec3n <5 km, s\u00f3ng\/s\u01b0\u01a1ng mu\u1ed1i m\u1ea1nh): \u0103n m\u00f2n r\u1ea5t cao.\nKhuy\u1ebfn ngh\u1ecb kh\u1ea3o s\u00e1t th\u1ef1c \u0111\u1ecba, x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch t\u1edbi bi\u1ec3n, t\u1ed1c \u0111\u1ed9 gi\u00f3, \u0111\u1ecdng mu\u1ed1i\/b\u1ee5i, n\u01b0\u1edbc \u0111\u1ecdng\/ke k\u1ebd.\n\n\n\n<h3>Ch\u1ecdn m\u00e1c inox theo kho\u1ea3ng c\u00e1ch t\u1edbi bi\u1ec3n v\u00e0 m\u1ee9c r\u1ee7i ro<\/h3>\n<p>&#8211; N\u1ed9i \u0111\u1ecba\/C3: 304 (A2) cho khung, k\u1eb9p, bu-l\u00f4ng; ho\u00e0n thi\u1ec7n 2B, th\u1ee5 \u0111\u1ed9ng h\u00f3a. \u01afu ti\u00ean 316L \u1edf \u0111i\u1ec3m h\u1ee9ng m\u01b0a axit\/\u00f4 nhi\u1ec5m c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; Ven bi\u1ec3n 5\u201320 km\/C4: 316L (A4) ho\u1eb7c ferritic 444 cho khung, ray, c\u1ecdc. Bu-l\u00f4ng A4-70\/A4-80. Ho\u00e0n thi\u1ec7n m\u1ecbn (Ra \u22640,8 \u00b5m) gi\u1ea3m b\u00e1m b\u1ea9n v\u00e0 tea-staining.<br \/>\n&#8211; <5 km\/C5, n\u1ed3ng \u0111\u1ed9 Cl- cao, s\u01b0\u01a1ng mu\u1ed1i m\u1ea1nh, h\u1ed3 mu\u1ed1i: duplex 2205 cho khung\/c\u1ecdc\/chi ti\u1ebft d\u00e0y; 316L \u0111\u00e1nh b\u00f3ng m\u1ecbn cho ph\u1ee5 ki\u1ec7n \u00edt t\u1ea3i. 6Mo\/duplex si\u00eau b\u1ec1n (2507) cho v\u00f9ng splash\/tia n\u01b0\u1edbc m\u1eb7n tr\u1ef1c ti\u1ebfp.\nG\u1ee3i \u00fd b\u1eb1ng PREN (Pitting Resistance Equivalent Number = %Cr + 3,3\u00d7%Mo + 16\u00d7%N):\n- 304: ~18\u201319 (C3)\n- 316L: ~24\u201326 (C3\u2013C4)\n- 444: ~24 (C3\u2013C4, kh\u00e1ng Cl- t\u1ed1t nh\u1edd Mo)\n- 2205: ~34\u201336 (C4\u2013C5)\n- 2507\/254SMO: >40 (C5, splash zone)<br \/>\n[Ngu\u1ed3n: Nickel Institute; IMOA]<\/p>\n<h3>So s\u00e1nh v\u1edbi th\u00e9p m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng (HDG)<\/h3>\n<p>&#8211; Tu\u1ed5i th\u1ecd l\u1edbp m\u1ea1 85 \u00b5m: C4 ~10\u201320 n\u0103m, C5 ~5\u201310 n\u0103m \u0111\u1ebfn m\u1ed1c s\u01a1n\/b\u1ea3o tr\u00ec \u0111\u1ea7u ti\u00ean (ISO 14713-1). V\u1edbi v\u00f2ng \u0111\u1eddi 25\u201330 n\u0103m, c\u1ea7n b\u1ea3o tr\u00ec\/kh\u1eafc ph\u1ee5c m\u1ea1, ph\u00e1t sinh d\u1eebng m\u00e1y.<br \/>\n&#8211; Inox kh\u00f4ng c\u1ea7n m\u1ea1, kh\u00f4ng bong tr\u00f3c; chi ph\u00ed \u0111\u1ea7u t\u01b0 cao h\u01a1n nh\u01b0ng t\u1ed5ng chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u01b0\u1eddng th\u1ea5p h\u01a1n \u1edf C4\u2013C5.<\/p>\n<h3>Thi\u1ebft k\u1ebf c\u01a1 h\u1ecdc v\u00e0 t\u1ed1i \u01b0u ti\u1ebft di\u1ec7n<\/h3>\n<p>&#8211; C\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec3n h\u00ecnh:<br \/>\n  &#8211; 304\/316L: Rp0,2 ~170\u2013210 MPa; Rm ~500\u2013620 MPa.<br \/>\n  &#8211; 444: Rp0,2 ~280 MPa.<br \/>\n  &#8211; 2205: Rp0,2 ~450\u2013500 MPa; Rm ~700\u2013800 MPa.<br \/>\n&#8211; Duplex 2205 cho ph\u00e9p gi\u1ea3m b\u1ec1 d\u00e0y\/kh\u1ed1i l\u01b0\u1ee3ng thanh gi\u1eb1ng, c\u1ecdc trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 v\u00f5ng v\u00e0 m\u1ecfi gi\u00f3. Thi\u1ebft k\u1ebf theo EN 1993-1-4 (Eurocode 3 \u2013 inox) ho\u1eb7c AISC Design Guide for Stainless Steel.<\/p>\n<h3>L\u01b0u \u00fd t\u01b0\u01a1ng t\u00e1c \u0111i\u1ec7n h\u00f3a v\u1edbi nh\u00f4m v\u00e0 th\u00e9p m\u1ea1<\/h3>\n<p>&#8211; K\u1eb9p\/v\u00edt inox ti\u1ebfp x\u00fac ray nh\u00f4m: c\u00e1ch ly b\u1eb1ng long \u0111en nh\u1ef1a, s\u01a1n t\u0129nh \u0111i\u1ec7n, ho\u1eb7c keo tr\u00e1m \u0111\u1ec3 gi\u1ea3m \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a; tho\u00e1t n\u01b0\u1edbc t\u1ed1t, tr\u00e1nh k\u1ebd h\u1edf gi\u1eef mu\u1ed1i.<br \/>\n&#8211; Tr\u00e1nh ph\u1ed1i gh\u00e9p inox th\u1ee5 \u0111\u1ed9ng v\u1edbi th\u00e9p cacbon kh\u00f4ng m\u1ea1 trong v\u00f9ng \u1ea9m. N\u1ebfu b\u1eaft bu\u1ed9c, d\u00f9ng l\u1edbp c\u00e1ch \u0111i\u1ec7n v\u00e0 b\u1ecbt k\u00edn m\u00e9p c\u1eaft.<\/p>\n<h3>Nhi\u1ec7t gi\u00e3n n\u1edf v\u00e0 li\u00ean k\u1ebft<\/h3>\n<p>&#8211; H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf (\u00b5m\/m.K): nh\u00f4m ~23; inox austenit ~16\u201317; duplex ~13\u201314; th\u00e9p cacbon ~12. B\u1ed1 tr\u00ed khe gi\u00e3n v\u00e0 g\u1ed1i tr\u01b0\u1ee3t cho li\u00ean k\u1ebft nh\u00f4m\u2013inox \u0111\u1ec3 tr\u00e1nh \u1ee9ng su\u1ea5t k\u1eb9p qu\u00e1 m\u1ee9c.<\/p>\n<h3>Bu-l\u00f4ng\/v\u00edt inox cho PV<\/h3>\n<p>&#8211; Theo ISO 3506-1\/-2: A2-70 (304) cho C3; A4-70\/A4-80 (316) cho C4\/C5. V\u1edbi t\u1ea3i k\u1eb9p cao v\u00e0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, \u01b0u ti\u00ean A4-80 c\u00f3 l\u1edbp b\u00f4i tr\u01a1n.<br \/>\n&#8211; Ph\u00f2ng ch\u1ed1ng k\u1eb9t ren (galling): d\u00f9ng m\u1ee1 ch\u1ed1ng k\u1eb9t ch\u1ee9a MoS2\/PTFE, gh\u00e9p c\u1eb7p kh\u00e1c \u0111\u1ed9 c\u1ee9ng (bu-l\u00f4ng A4-80 v\u1edbi \u00ea-cu A4-70), tr\u00e1nh si\u1ebft kh\u00f4 t\u1ed1c \u0111\u1ed9 cao.<br \/>\n&#8211; V\u00edt t\u1ef1 khoan m\u00e1i t\u00f4n: inox 304\/316L v\u1edbi m\u0169 EPDM ch\u1ea5t l\u01b0\u1ee3ng bi\u1ec3n, v\u00edt m\u0169 \u00e9p k\u00edn, ren c\u1ee9ng c\u00e1p.<\/p>\n<h2 id=\"toc-2-tua-bin-gio-inox-o-dau-la-kinh-te-ky-thuat-nhat\">Tua-bin gi\u00f3: Inox \u1edf \u0111\u00e2u l\u00e0 kinh t\u1ebf \u2013 k\u1ef9 thu\u1eadt nh\u1ea5t?<\/h2>\n<p>Trong tua-bin onshore, th\u00e1p ch\u00ednh ch\u1ee7 y\u1ebfu th\u00e9p cacbon s\u01a1n\/h\u1ec7 s\u01a1n b\u1ea3o v\u1ec7. Inox n\u1ed5i tr\u1ed9i \u1edf \u201csecondary steel\u201d v\u00e0 offshore:<br \/>\n&#8211; Lan can, c\u1ea7u thang, s\u00e0n thao t\u00e1c: 316L (onshore), 2205 (offshore\/splash).<br \/>\n&#8211; Bu-l\u00f4ng, \u1ed1c v\u00edt ngo\u00e0i tr\u1eddi, k\u1eb9p c\u00e1p: A4-80 cho C4; 2205\/254SMO cho C5\/splash. L\u01b0u \u00fd c\u00e1c bu-l\u00f4ng k\u1ebft c\u1ea5u c\u01b0\u1eddng \u0111\u1ed9 r\u1ea5t cao (flange M36\u2013M72) v\u1eabn d\u00f9ng th\u00e9p h\u1ee3p kim t\u00f4i ram c\u00f3 ph\u1ee7 \u0111\u1eb7c bi\u1ec7t; inox kh\u00f4ng thay th\u1ebf tr\u1ef1c ti\u1ebfp nh\u00f3m n\u00e0y do y\u00eau c\u1ea7u c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 ma s\u00e1t.<br \/>\n&#8211; \u1ed0ng th\u1ee7y l\u1ef1c, \u1ed1ng x\u1ea3, v\u1ecf che: 316L; v\u1edbi h\u01a1i mu\u1ed1i cao d\u00f9ng 2205.<br \/>\n&#8211; C\u1ecdc\/neo, chi ti\u1ebft \u201csplash and tidal zone\u201d tr\u1ea1m\/offshore: duplex 2205\/si\u00eau duplex 2507 \u0111\u1ec3 ch\u1ed1ng r\u1ed7\/ch\u1ebb khe v\u00e0 m\u1ecfi do s\u00f3ng.<br \/>\n&#8211; M\u1ecfi: DNV-RP-C203 v\u00e0 IEC 61400 khuy\u1ebfn c\u00e1o ki\u1ec3m so\u00e1t chi ti\u1ebft h\u00e0n, b\u00e1n k\u00ednh g\u00f3c, tr\u00e1nh khe k\u1eb9p gi\u1eef mu\u1ed1i; duplex c\u00f3 gi\u1edbi h\u1ea1n m\u1ecfi t\u1ed1t h\u01a1n \u1edf m\u00f4i tr\u01b0\u1eddng bi\u1ec3n khi h\u00e0n \u0111\u00fang quy tr\u00ecnh.<\/p>\n<h3>Ti\u00eau chu\u1ea9n v\u00e0 quy ph\u1ea1m tham chi\u1ebfu<\/h3>\n<p>&#8211; V\u1eadt li\u1ec7u: ASTM A240\/A480 (t\u1ea5m), A276\/A479 (thanh), EN 10088 (inox), ISO 3506 (bu-l\u00f4ng inox).<br \/>\n&#8211; Thi\u1ebft k\u1ebf: EN 1993-1-4 (k\u1ebft c\u1ea5u inox); IEC 62817 (tracker), UL 2703 (racking \u2013 B\u1eafc M\u1ef9 tham kh\u1ea3o), IEC 61400 (tua-bin gi\u00f3), DNV-ST-0126 (offshore support structures).<br \/>\n&#8211; B\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n: ISO 9223\/9224 (ph\u00e2n lo\u1ea1i m\u00f4i tr\u01b0\u1eddng), ISO 12944 (h\u1ec7 s\u01a1n \u2013 \u0111\u1ed1i chi\u1ebfu khi d\u00f9ng th\u00e9p s\u01a1n), ISO 14713-1 (tu\u1ed5i th\u1ecd m\u1ea1 k\u1ebdm \u2013 \u0111\u1ed1i chi\u1ebfu).<\/p>\n<h2 id=\"toc-3-gia-cong-han-va-hoan-thien-be-mat-inox-cho-pv-va-g\">Gia c\u00f4ng, h\u00e0n v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t inox cho PV v\u00e0 gi\u00f3<\/h2>\n<p>&#8211; C\u1eaft v\u00e0 t\u1ea1o h\u00ecnh: tr\u00e1nh nhi\u1ec5m s\u1eaft t\u1eeb d\u1ee5ng c\u1ee5 th\u00e9p cacbon; d\u00f9ng \u0111\u0129a\/dao ri\u00eang cho inox. L\u00e0m s\u1ea1ch v\u1ee5n m\u00e0i.<br \/>\n&#8211; H\u00e0n:<br \/>\n  &#8211; 304\/316L: GTAW\/GMAW v\u1edbi ER308L\/ER316LSi; ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o, l\u00e0m s\u1ea1ch gi\u1eefa c\u00e1c pass; interpass <150\u00b0C.\n  - Duplex 2205: que\/filler ER2209; nhi\u1ec7t v\u00e0o 0,5\u20132,5 kJ\/mm; interpass \u2264150\u00b0C; ki\u1ec3m so\u00e1t ferrite 30\u201370% sau h\u00e0n.\n- T\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a: theo ASTM A380\/A967; t\u1ea9y HF\/HNO3 v\u00f9ng HAZ, r\u1eeda k\u1ef9; th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1eb1ng HNO3\/citric; tr\u00e1nh clo b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t.\n- Ho\u00e0n thi\u1ec7n: 2B\/No.4 \u0111\u00e1nh m\u1ecbn (Ra \u22640,8 \u00b5m) cho C4; Ra \u22640,5 \u00b5m cho C5\/splash. Bo g\u00f3c, \u0111\u1ee5c l\u1ed7 tho\u00e1t n\u01b0\u1edbc, gi\u1ea3m khe h\u1edf.\n\n\n\n<h2 id=\"toc-4-kiem-soat-chat-luong-va-nghiem-thu\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 nghi\u1ec7m thu<\/h2>\n<p>&#8211; Ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u: EN 10204 3.1; x\u00e1c nh\u1eadn m\u00e1c\/\u0111\u1ed9 d\u00e0y\/b\u1ec1 m\u1eb7t\/PREN m\u1ee5c ti\u00eau.<br \/>\n&#8211; Ki\u1ec3m tra PMI (Positive Material Identification) v\u1edbi chi ti\u1ebft quan tr\u1ecdng (\u0111\u1eb7c bi\u1ec7t 316L\/duplex).<br \/>\n&#8211; Ki\u1ec3m tra m\u1ed1i h\u00e0n: VT\/PT; v\u1edbi duplex quan tr\u1ecdng c\u00f3 th\u1ec3 b\u1ed5 sung ferrite scope.<br \/>\n&#8211; L\u1eafp d\u1ef1ng: m\u00f4-men si\u1ebft theo ISO 898-2\/ISO 3506, d\u00f9ng m\u1ee1 ch\u1ed1ng k\u1eb9t; che ch\u1eafn trong giai \u0111o\u1ea1n thi c\u00f4ng ven bi\u1ec3n \u0111\u1ec3 tr\u00e1nh nhi\u1ec5m mu\u1ed1i tr\u01b0\u1edbc khi th\u1ee5 \u0111\u1ed9ng h\u00f3a ho\u00e0n to\u00e0n.<\/p>\n<h2 id=\"toc-5-lua-chon-vat-lieu-theo-kich-ban-du-an-dien-hinh-ta\">L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u theo k\u1ecbch b\u1ea3n d\u1ef1 \u00e1n \u0111i\u1ec3n h\u00ecnh t\u1ea1i Vi\u1ec7t Nam<\/h2>\n<p>&#8211; Ninh Thu\u1eadn\/B\u00ecnh Thu\u1eadn (PV v\u00e0 gi\u00f3, gi\u00f3 m\u1ea1nh, h\u01a1i mu\u1ed1i trung b\u00ecnh-\u00adcao):<br \/>\n  &#8211; Khung\/c\u1ecdc PV: 316L ho\u1eb7c 444 cho >5 km; 2205 cho <5 km ho\u1eb7c g\u1ea7n \u0111\u1ea7m\/h\u1ed3 mu\u1ed1i.\n  - Bu-l\u00f4ng: A4-80; k\u1eb9p\/\u00ea-cu c\u00f3 b\u00f4i tr\u01a1n ch\u1ed1ng k\u1eb9t.\n- Rooftop H\u1ed3 Ch\u00ed Minh\/H\u1ea3i Ph\u00f2ng (\u0111\u00f4 th\u1ecb C4, m\u01b0a axit\/\u00f4 nhi\u1ec5m):\n  - V\u00edt m\u00e1i\/k\u1eb9p: 316L; \u0111\u1ec7m EPDM ch\u1ea5t l\u01b0\u1ee3ng cao; c\u00e1ch ly v\u1edbi nh\u00f4m.\n- Offshore\/\u0111\u00ea ch\u1eafn s\u00f3ng (tr\u1ea1m, c\u1ea7u d\u1eabn, n\u1ec1n m\u00f3ng ph\u1ee5):\n  - Lan can\/s\u00e0n, thang: 2205; bu-l\u00f4ng duplex\/6Mo; ho\u00e0n thi\u1ec7n Ra \u22640,5 \u00b5m; b\u1ecbt k\u00edn khe.\n\n\n\n<h2 id=\"toc-6-chi-phi-vong-doi-lcc-va-toi-uu-hoa\">Chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/h2>\n<p>&#8211; Capex: inox cao h\u01a1n HDG 15\u201340% t\u00f9y m\u00e1c v\u00e0 b\u1ec1 d\u00e0y.<br \/>\n&#8211; Opex\/B\u1ea3o tr\u00ec: inox g\u1ea7n nh\u01b0 b\u1eb1ng 0 cho C3\u2013C4; \u1edf C5 c\u1ea7n v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh tea-staining.<br \/>\n&#8211; R\u1ee7i ro d\u1eebng m\u00e1y: HDG c\u00f3 x\u00e1c su\u1ea5t ph\u1ea3i x\u1eed l\u00fd b\u1ea3o tr\u00ec gi\u1eefa v\u00f2ng \u0111\u1eddi; inox gi\u1ea3m r\u1ee7i ro m\u1ea5t s\u1ea3n l\u01b0\u1ee3ng.<br \/>\n&#8211; T\u1ed1i \u01b0u h\u00f3a: d\u00f9ng 316L\/444 cho ph\u1ea7n l\u1edbn c\u1ea5u ki\u1ec7n, tri\u1ec3n khai 2205 c\u00f3 ch\u1ecdn l\u1ecdc t\u1ea1i \u201c\u0111i\u1ec3m n\u00f3ng\u201d (splash, khe k\u1eb9p s\u00e1t bi\u1ec3n) \u0111\u1ec3 c\u00e2n b\u1eb1ng chi ph\u00ed\u2013\u0111\u1ed9 b\u1ec1n.<\/p>\n<h2 id=\"toc-7-danh-muc-san-pham-inox-phu-hop-cho-pvgio-nguon-cun\">Danh m\u1ee5c s\u1ea3n ph\u1ea9m inox ph\u00f9 h\u1ee3p cho PV\/gi\u00f3 (ngu\u1ed3n cung t\u1eeb H\u00e0 N\u1ed9i)<\/h2>\n<p>&#8211; T\u1ea5m\/cu\u1ed9n 304\/316L ho\u00e0n thi\u1ec7n 2B\/No.4: 0,5\u20136 mm; t\u1ea5m d\u00e0y 8\u201330 mm.<br \/>\n&#8211; Thanh ch\u1eef U\/L, h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt 304\/316L\/444: 1,5\u20138 mm.<br \/>\n&#8211; \u1ed0ng h\u00e0n\/\u1ed1ng \u0111\u00fac 304\/316L: DN15\u2013DN300; \u1ed1ng d\u00e0y 2205 theo \u0111\u01a1n h\u00e0ng.<br \/>\n&#8211; Bu-l\u00f4ng\/\u00ea-cu\/long \u0111en A2\/A4; bu-l\u00f4ng duplex\/6Mo theo \u0111\u1eb7t h\u00e0ng.<br \/>\n&#8211; Gia c\u00f4ng theo b\u1ea3n v\u1ebd: c\u1eaft laser, ch\u1ea5n, h\u00e0n TIG\/MIG; t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A380\/A967.<\/p>\n<h2 id=\"toc-8-checklist-nhanh-khi-dat-hang-inox-cho-du-an-pvgio\">Checklist nhanh khi \u0111\u1eb7t h\u00e0ng inox cho d\u1ef1 \u00e1n PV\/gi\u00f3<\/h2>\n<p>&#8211; M\u00e1c th\u00e9p v\u00e0 PREN m\u1ee5c ti\u00eau theo ISO 9223 c\u1ee7a \u0111\u1ecba \u0111i\u1ec3m.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u (ASTM\/EN), ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 y\u00eau c\u1ea7u Ra.<br \/>\n&#8211; Quy tr\u00ecnh h\u00e0n, filler, ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n.<br \/>\n&#8211; B\u1ed9 bu-l\u00f4ng: m\u00e1c, c\u1ea5p b\u1ec1n, b\u00f4i tr\u01a1n, ch\u1ed1ng k\u1eb9t.<br \/>\n&#8211; Y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n v\u1edbi nh\u00f4m\/th\u00e9p m\u1ea1, tho\u00e1t n\u01b0\u1edbc v\u00e0 b\u1ecbt k\u00edn khe.<br \/>\n&#8211; Ch\u1ee9ng ch\u1ec9 MTC 3.1, PMI, th\u1eed nghi\u1ec7m c\u1ea7n thi\u1ebft.<br \/>\n&#8211; \u0110\u00f3ng g\u00f3i, b\u1ea3o qu\u1ea3n ch\u1ed1ng nhi\u1ec5m s\u1eaft v\u00e0 mu\u1ed1i trong v\u1eadn chuy\u1ec3n\/thi c\u00f4ng.<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Inox l\u00e0 v\u1eadt li\u1ec7u t\u1ed1i \u01b0u cho khung PV v\u00e0 h\u1ea1ng m\u1ee5c ph\u1ee5 c\u1ee7a tua-bin gi\u00f3 nh\u1edd kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p.<br \/>\n&#8211; L\u1ef1a ch\u1ecdn m\u00e1c theo m\u00f4i tr\u01b0\u1eddng: 304 (C3), 316L\/444 (C4), 2205\/si\u00eau duplex (C5\/splash). D\u00f9ng PREN \u0111\u1ec3 so s\u00e1nh n\u0103ng l\u1ef1c ch\u1ed1ng r\u1ed7.<br \/>\n&#8211; Thi\u1ebft k\u1ebf ch\u00fa tr\u1ecdng tho\u00e1t n\u01b0\u1edbc, gi\u1ea3m khe, c\u00e1ch ly \u0111i\u1ec7n h\u00f3a v\u1edbi nh\u00f4m\/th\u00e9p m\u1ea1; d\u00f9ng bu-l\u00f4ng A4-70\/80 v\u00e0 quy tr\u00ecnh ch\u1ed1ng k\u1eb9t ren.<br \/>\n&#8211; Thi c\u00f4ng \u0111\u00fang quy tr\u00ecnh h\u00e0n, t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 duy tr\u00ec l\u1edbp th\u1ee5 \u0111\u1ed9ng ch\u1ed1ng \u0103n m\u00f2n.<br \/>\nL\u00e0m \u0111\u00fang c\u00e1c \u0111i\u1ec3m tr\u00ean s\u1ebd gi\u00fap d\u1ef1 \u00e1n PV\/gi\u00f3 t\u1ea1i Vi\u1ec7t Nam \u0111\u1ea1t tu\u1ed5i th\u1ecd 25\u201330 n\u0103m v\u1edbi chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p v\u00e0 \u0111\u1ed9 tin c\u1eady cao.<\/p>\n<p>Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n chi ti\u1ebft theo \u0111i\u1ec1u ki\u1ec7n c\u00f4ng tr\u01b0\u1eddng v\u00e0 nh\u1eadn b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o:<br \/>\n&#8211; ISO 9223: Corrosion of metals and alloys \u2013 Corrosivity of atmospheres.<br \/>\n&#8211; ISO 14713-1: Zinc coatings \u2013 Guidelines and recommendations for the protection against corrosion.<br \/>\n&#8211; EN 1993-1-4: Eurocode 3 \u2013 Design of steel structures \u2013 Stainless steels.<br \/>\n&#8211; ISO 3506-1\/-2: Mechanical properties of corrosion-resistant stainless steel fasteners.<br \/>\n&#8211; ASTM A240\/A480, A276\/A479; ASTM A380\/A967 (passivation).<br \/>\n&#8211; IEC 62817 (PV trackers), UL 2703 (PV mounting systems \u2013 reference), IEC 61400 (wind turbines), DNV-RP-C203, DNV-ST-0126.<br \/>\n&#8211; Nickel Institute, IMOA (International Molybdenum Association) technical publications on stainless selection for chloride environments.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn ch\u1ecdn inox cho khung pin m\u1eb7t tr\u1eddi v\u00e0 tua-bin gi\u00f3 theo m\u00f4i tr\u01b0\u1eddng C3\u2013C5, m\u00e1c 304\/316L\/444\/2205, ch\u1ed1ng \u0103n m\u00f2n, l\u1eafp gh\u00e9p, h\u00e0n v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi.<\/p>\n","protected":false},"author":7,"featured_media":1075,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1780","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\/1780","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=1780"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1780\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1075"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}