{"id":1952,"date":"2026-04-27T00:42:08","date_gmt":"2026-04-26T17:42:08","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/quy-trinh-phuc-hoi-do-bong-guong-8k-cho-inox-cu-mo-chuan-xuong\/"},"modified":"2026-04-27T00:42:08","modified_gmt":"2026-04-26T17:42:08","slug":"quy-trinh-phuc-hoi-do-bong-guong-8k-cho-inox-cu-mo-chuan-xuong","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/quy-trinh-phuc-hoi-do-bong-guong-8k-cho-inox-cu-mo-chuan-xuong\/","title":{"rendered":"Quy tr\u00ecnh ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K cho Inox c\u0169, m\u1edd chu\u1ea9n x\u01b0\u1edfng"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-muc-tieu-ky-thuat-cua-do-bong-guong-va-tieu-chi-da\">M\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt c\u1ee7a \u201c\u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng\u201d v\u00e0 ti\u00eau ch\u00ed \u0111\u1ea1t chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-1-danh-gia-hien-trang-va-lap-ke-hoach\">\u0110\u00e1nh gi\u00e1 hi\u1ec7n tr\u1ea1ng v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch<\/a><\/li>\n<li><a href=\"#toc-2-dung-cu-va-vat-tu-can-chuan-bi\">D\u1ee5ng c\u1ee5 v\u00e0 v\u1eadt t\u01b0 c\u1ea7n chu\u1ea9n b\u1ecb<\/a><\/li>\n<li><a href=\"#toc-3-quy-trinh-phuc-hoi-do-bong-guong-chi-tiet\">Quy tr\u00ecnh ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng chi ti\u1ebft<\/a><\/li>\n<li><a href=\"#toc-4-quy-trinh-rut-gon-theo-tinh-huong-thuc-te\">Quy tr\u00ecnh r\u00fat g\u1ecdn theo t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-5-kiem-soat-chat-luong-va-do-luong\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111o l\u01b0\u1eddng<\/a><\/li>\n<li><a href=\"#toc-6-thoi-luong-chi-phi-va-toi-uu-hoa\">Th\u1eddi l\u01b0\u1ee3ng, chi ph\u00ed v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/a><\/li>\n<li><a href=\"#toc-7-luu-y-an-toan-va-loi-thuong-gap\">L\u01b0u \u00fd an to\u00e0n v\u00e0 l\u1ed7i th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-8-so-sanh-co-hoc-danh-bong-va-dien-hoa-electropolish\">So s\u00e1nh c\u01a1 h\u1ecdc \u0111\u00e1nh b\u00f3ng v\u00e0 \u0111i\u1ec7n h\u00f3a (electropolishing)<\/a><\/li>\n<li><a href=\"#toc-9-bao-duong-sau-phuc-hoi-de-be-mat-giu-bong-lau\">B\u1ea3o d\u01b0\u1ee1ng sau ph\u1ee5c h\u1ed3i \u0111\u1ec3 b\u1ec1 m\u1eb7t gi\u1eef b\u00f3ng l\u00e2u<\/a><\/li>\n<li><a href=\"#toc-10-vi-du-ung-dung-nhanh\">V\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng nhanh<\/a><\/li>\n<li><a href=\"#toc-11-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-12-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng (mirror\/8K) cho inox b\u1ecb c\u0169, m\u1edd l\u00e0 m\u1ed9t h\u1ea1ng m\u1ee5c chuy\u00ean s\u00e2u trong b\u1ea3o d\u01b0\u1ee1ng b\u1ec1 m\u1eb7t kim lo\u1ea1i. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p quy tr\u00ecnh k\u1ef9 thu\u1eadt chi ti\u1ebft t\u1eeb \u0111\u00e1nh gi\u00e1, chu\u1ea9n b\u1ecb, m\u00e0i\u2013\u0111\u00e1nh b\u00f3ng \u0111\u1ebfn passivation (t\u00e1i th\u1ee5 \u0111\u1ed9ng h\u00f3a) theo chu\u1ea9n c\u00f4ng nghi\u1ec7p, gi\u00fap b\u1ea1n \u0111\u01b0a b\u1ec1 m\u1eb7t inox tr\u1edf l\u1ea1i \u0111\u1ed9 s\u00e1ng g\u01b0\u01a1ng, h\u1ea1n ch\u1ebf t\u00e1i \u1ed1 v\u00e0 \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-0-muc-tieu-ky-thuat-cua-do-bong-guong-va-tieu-chi-da\">M\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt c\u1ee7a \u201c\u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng\u201d v\u00e0 ti\u00eau ch\u00ed \u0111\u1ea1t chu\u1ea9n<\/h2>\n<p>&#8211; M\u1ee5c ti\u00eau b\u1ec1 m\u1eb7t: Ra \u2264 0,05 \u03bcm (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng No.8\/mirror finish).<br \/>\n&#8211; \u0110\u1ed9 b\u00f3ng (Gloss at 60\u00b0): \u2265 90 GU v\u1edbi m\u00e1y glossmeter.<br \/>\n&#8211; Kh\u00f4ng c\u00f2n v\u1ebft x\u01b0\u1edbc \u0111\u1ecbnh h\u01b0\u1edbng nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng; h\u1ea1n ch\u1ebf \u201cda cam\u201d do qu\u00e1 nhi\u1ec7t.<br \/>\n&#8211; B\u1ec1 m\u1eb7t sau ho\u00e0n thi\u1ec7n \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch v\u00e0 passivation \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1edbp oxit crom (Cr2O3) ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-1-danh-gia-hien-trang-va-lap-ke-hoach\">\u0110\u00e1nh gi\u00e1 hi\u1ec7n tr\u1ea1ng v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch<\/h2>\n<h3>X\u00e1c \u0111\u1ecbnh m\u00e1c inox v\u00e0 b\u1ec1 m\u1eb7t g\u1ed1c<\/h3>\n<p>&#8211; M\u00e1c v\u1eadt li\u1ec7u: 201, 304, 316 (316 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u1ea5t; 201 d\u1ec5 \u201c\u1ed1 tr\u00e0\u201d ngo\u00e0i tr\u1eddi).<br \/>\n&#8211; D\u1ea1ng ho\u00e0n thi\u1ec7n ban \u0111\u1ea7u: 2B\/BA, No.4\/HL (hairline), hay \u0111\u00e3 t\u1eebng 8K.<br \/>\n&#8211; H\u00ecnh d\u00e1ng s\u1ea3n ph\u1ea9m: t\u1ea5m ph\u1eb3ng, \u1ed1ng\/h\u1ed9p, chi ti\u1ebft h\u00e0n, g\u00f3c khu\u1ea5t.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i m\u1ee9c h\u01b0 h\u1ecfng<\/h3>\n<p>&#8211; M\u1edd, \u1ed1 nh\u1eb9\/\u201ctea staining\u201d (n\u00e2u v\u00e0ng, n\u00e2u nh\u1ea1t).<br \/>\n&#8211; X\u01b0\u1edbc xo\u00e1y, x\u01b0\u1edbc s\u00e2u, v\u1ebft m\u00e0i c\u0169.<br \/>\n&#8211; \u0110\u1ed5i m\u00e0u v\u00f9ng h\u00e0n (nhi\u1ec7t m\u00e0u), x\u1ec9 h\u00e0n.<br \/>\n&#8211; R\u1ed7 \u0103n m\u00f2n (pitting).<br \/>\nM\u1ee9c \u0111\u1ed9 quy\u1ebft \u0111\u1ecbnh l\u1ed9 tr\u00ecnh m\u00e0i: b\u1eaft \u0111\u1ea7u t\u1eeb c\u1ea5p h\u1ea1t th\u00f4 h\u01a1n v\u1edbi x\u01b0\u1edbc s\u00e2u; t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec3 kh\u00f4ng \u201cnh\u1ea3y c\u1ea5p\u201d qu\u00e1 xa.<\/p>\n<h2 id=\"toc-2-dung-cu-va-vat-tu-can-chuan-bi\">D\u1ee5ng c\u1ee5 v\u00e0 v\u1eadt t\u01b0 c\u1ea7n chu\u1ea9n b\u1ecb<\/h2>\n<p>&#8211; M\u00e1y v\u00e0 ph\u1ee5 ki\u1ec7n:<br \/>\n  &#8211; M\u00e1y ch\u00e0 nh\u00e1m qu\u1ef9 \u0111\u1ea1o\/\u0111ai; m\u00e1y m\u00e0i c\u1ea7m tay c\u00f3 \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9; m\u00e1y \u0111\u00e1nh b\u00f3ng (polisher) 800\u20132500 rpm.<br \/>\n  &#8211; \u0110\u0129a\/\u0111ai nh\u00e1m ch\u1ecbu n\u01b0\u1edbc: P240\u2013P2000; pad m\u00fat trung gian; backing pad ph\u1eb3ng.<br \/>\n  &#8211; B\u00e1nh \u0111\u00e1nh b\u00f3ng: sisal\/b\u00f4ng may d\u00e0y (c\u1eaft), b\u00f4ng xo\u1eafn (trung), b\u00f4ng m\u1ec1m\/len l\u00f4ng c\u1eebu (ho\u00e0n thi\u1ec7n); n\u1ec9 ph\u1eb3ng cho g\u00f3c c\u1ea1nh.<br \/>\n&#8211; H\u1ee3p ch\u1ea5t \u0111\u00e1nh b\u00f3ng (compound):<br \/>\n  &#8211; C\u1eaft m\u1ea1nh: Emery\/\u0111\u00e1 \u0111en.<br \/>\n  &#8211; Trung b\u00ecnh: xanh l\u00e1 ch\u1ee9a Cr2O3 (v\u00ed d\u1ee5 Menzerna 439T).<br \/>\n  &#8211; Ho\u00e0n thi\u1ec7n: tr\u1eafng\/lam ch\u1ee9a Al2O3 (v\u00ed d\u1ee5 Menzerna P175\/480W).<br \/>\n&#8211; H\u00f3a ch\u1ea5t l\u00e0m s\u1ea1ch &#038; x\u1eed l\u00fd:<br \/>\n  &#8211; T\u1ea9y d\u1ea7u: dung d\u1ecbch ki\u1ec1m nh\u1eb9 (pH 9\u201311).<br \/>\n  &#8211; T\u1ea9y \u1ed1\/tea staining nh\u1eb9: acid oxalic 5\u201310% ho\u1eb7c gel phosphoric\/citric.<br \/>\n  &#8211; Pickling v\u00f9ng h\u00e0n n\u1eb7ng: gel HNO3 + HF chuy\u00ean d\u1ee5ng (ch\u1ec9 d\u00f9ng khi c\u1ea7n v\u00e0 tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t an to\u00e0n).<br \/>\n  &#8211; Passivation: dung d\u1ecbch citric 8\u201310% ho\u1eb7c nitric 20\u201325% theo ASTM A967.<br \/>\n  &#8211; Trung h\u00f2a: NaHCO3 1\u20132% sau b\u01b0\u1edbc acid.<br \/>\n&#8211; B\u1ea3o h\u1ed9 v\u00e0 an to\u00e0n:<br \/>\n  &#8211; G\u0103ng nitrile, k\u00ednh, kh\u1ea9u trang l\u1ecdc h\u01a1i acid, \u00e1o tay d\u00e0i; h\u1ec7 th\u1ed1ng h\u00fat b\u1ee5i\/h\u01a1i; khay thu gom ch\u1ea5t th\u1ea3i.<br \/>\n&#8211; Che ch\u1eafn:<br \/>\n  &#8211; B\u0103ng keo, m\u00e0ng PE b\u1ea3o v\u1ec7 khu v\u1ef1c xung quanh; t\u1ea5m m\u00fat \u0111\u1ee1 chi ti\u1ebft \u0111\u1ec3 ch\u1ed1ng x\u01b0\u1edbc th\u1ee9 c\u1ea5p.<\/p>\n<h2 id=\"toc-3-quy-trinh-phuc-hoi-do-bong-guong-chi-tiet\">Quy tr\u00ecnh ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng chi ti\u1ebft<\/h2>\n<h3>B\u01b0\u1edbc 1 \u2013 T\u1ea9y d\u1ea7u v\u00e0 l\u00e0m s\u1ea1ch s\u01a1 b\u1ed9<\/h3>\n<p>&#8211; R\u1eeda b\u1ec1 m\u1eb7t b\u1eb1ng dung d\u1ecbch t\u1ea9y d\u1ea7u ki\u1ec1m nh\u1eb9, ch\u00e0 v\u1edbi kh\u0103n microfiber.<br \/>\n&#8211; Tr\u00e1ng n\u01b0\u1edbc s\u1ea1ch, lau kh\u00f4.<br \/>\nM\u1ee5c \u0111\u00edch: lo\u1ea1i b\u1ecf d\u1ea7u m\u1ee1 \u0111\u1ec3 h\u1ea1t nh\u00e1m v\u00e0 compound \u201cc\u1eaft\u201d \u0111\u1ed3ng \u0111\u1ec1u, kh\u00f4ng b\u00edt m\u1eb7t.<\/p>\n<h3>B\u01b0\u1edbc 2 \u2013 X\u1eed l\u00fd \u1ed1 tr\u00e0, \u0111\u1ed5i m\u00e0u v\u00e0 g\u1ec9 nh\u1eb9<\/h3>\n<p>&#8211; Tea staining\/\u1ed1 nh\u1eb9: thoa dung d\u1ecbch oxalic 5\u201310% ho\u1eb7c gel citric\/phosphoric 5\u201315%. Ch\u1edd 5\u201315 ph\u00fat, ch\u00e0 nh\u1eb9 b\u1eb1ng pad kh\u00f4ng d\u1ec7t (non-woven), r\u1eeda s\u1ea1ch.<br \/>\n&#8211; V\u00f9ng h\u00e0n \u0111\u1ed5i m\u00e0u n\u1eb7ng: d\u00f9ng gel pickling HNO3 + HF theo h\u01b0\u1edbng d\u1eabn nh\u00e0 s\u1ea3n xu\u1ea5t (PPE \u0111\u1ea7y \u0111\u1ee7, th\u00f4ng gi\u00f3 t\u1ed1t). Sau 10\u201330 ph\u00fat, r\u1eeda \u00e1p l\u1ef1c cao, trung h\u00f2a b\u1eb1ng NaHCO3 1\u20132%.<br \/>\nL\u01b0u \u00fd: Kh\u00f4ng \u0111\u1ec3 h\u00f3a ch\u1ea5t kh\u00f4 tr\u00ean b\u1ec1 m\u1eb7t; th\u1eed \u1edf v\u00f9ng khu\u1ea5t tr\u01b0\u1edbc.<\/p>\n<h3>B\u01b0\u1edbc 3 \u2013 S\u1eeda x\u01b0\u1edbc v\u00e0 ti\u1ec1n \u0111\u00e1nh b\u00f3ng (sanding)<\/h3>\n<p>&#8211; Quy t\u1eafc chung:<br \/>\n  &#8211; Kh\u00f4ng nh\u1ea3y c\u1ea5p h\u1ea1t qu\u00e1 xa (g\u1ea5p ~2 l\u1ea7n l\u00e0 t\u1ed1i \u0111a).<br \/>\n  &#8211; D\u00f9ng n\u01b0\u1edbc khi ch\u00e0 nh\u00e1m \u0111\u1ec3 gi\u1ea3m nhi\u1ec7t v\u00e0 t\u1ea3i m\u1ea1t.<br \/>\n  &#8211; \u0110\u00e1nh theo \u0111\u01b0\u1eddng ch\u00e9o ch\u1eef X gi\u1eefa c\u00e1c c\u1ea5p \u0111\u1ec3 \u201cc\u1eaft\u201d v\u1ebft x\u01b0\u1edbc c\u0169.<br \/>\n&#8211; G\u1ee3i \u00fd l\u1ed9 tr\u00ecnh theo m\u1ee9c x\u01b0\u1edbc:<br \/>\n  &#8211; X\u01b0\u1edbc s\u00e2u\/hairline r\u00f5: P240 \u2192 P400 \u2192 P600 \u2192 P800 \u2192 P1000 \u2192 P1200 \u2192 P1500 \u2192 P2000.<br \/>\n  &#8211; M\u1edd, \u1ed1 nh\u1eb9, x\u01b0\u1edbc n\u00f4ng: P600 \u2192 P800 \u2192 P1200 \u2192 P1500 \u2192 P2000.<br \/>\n&#8211; Ki\u1ec3m tra:<br \/>\n  &#8211; D\u1eebng \u1edf c\u1ea5p m\u00e0 v\u1ebft x\u01b0\u1edbc c\u0169 v\u1eeba h\u1ebft; d\u00f9ng \u0111\u00e8n led xi\u00ean 45\u00b0 v\u00e0 k\u00ednh l\u00fap 10x.<br \/>\n  &#8211; B\u1ec1 m\u1eb7t c\u1ea7n ph\u1eb3ng \u0111\u1ec1u tr\u01b0\u1edbc khi chuy\u1ec3n sang buffing.<\/p>\n<h3>B\u01b0\u1edbc 4 \u2013 \u0110\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc \u0111\u1ea1t g\u01b0\u01a1ng (buffing)<\/h3>\n<p>&#8211; Giai \u0111o\u1ea1n c\u1eaft:<br \/>\n  &#8211; B\u00e1nh sisal ho\u1eb7c b\u00f4ng may d\u00e0y + compound c\u1eaft (emery\/\u0111en).<br \/>\n  &#8211; T\u1ed1c \u0111\u1ed9 1500\u20132000 rpm; \u00e1p l\u1ef1c v\u1eeba; di chuy\u1ec3n li\u00ean t\u1ee5c \u0111\u1ec3 tr\u00e1nh n\u00f3ng c\u1ee5c b\u1ed9.<br \/>\n&#8211; Giai \u0111o\u1ea1n trung gian:<br \/>\n  &#8211; B\u00e1nh b\u00f4ng xo\u1eafn + compound xanh Cr2O3.<br \/>\n  &#8211; M\u1ee5c ti\u00eau: x\u00f3a hologram, t\u0103ng \u0111\u1ed9 s\u00e2u b\u00f3ng.<br \/>\n&#8211; Giai \u0111o\u1ea1n ho\u00e0n thi\u1ec7n:<br \/>\n  &#8211; B\u00e1nh b\u00f4ng m\u1ec1m\/len l\u00f4ng c\u1eebu + compound tr\u1eafng\/lam.<br \/>\n  &#8211; T\u1ed1c \u0111\u1ed9 1200\u20131800 rpm, l\u1ef1c nh\u1eb9; l\u00e0m s\u1ea1ch b\u00e1nh khi b\u00e1m b\u1ea9n.<br \/>\n&#8211; Gi\u1eefa c\u00e1c giai \u0111o\u1ea1n: lau s\u1ea1ch d\u01b0 compound b\u1eb1ng kh\u0103n microfiber v\u00e0 dung d\u1ecbch isopropyl 10\u201320% \u0111\u1ec3 tr\u00e1nh \u201cnhi\u1ec5m\u201d ch\u00e9o.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t nhi\u1ec7t:<br \/>\n  &#8211; Gi\u1eef b\u1ec1 m\u1eb7t < 60\u00b0C \u0111\u1ec3 tr\u00e1nh bi\u1ebfn m\u00e0u v\u00e0 \u201cda cam\u201d. N\u1ebfu n\u00f3ng, ng\u1eebng v\u00e0 \u0111\u1ec3 ngu\u1ed9i.\n\n\n\n<h3>B\u01b0\u1edbc 5 \u2013 L\u00e0m s\u1ea1ch tinh v\u00e0 passivation<\/h3>\n<p>&#8211; T\u1ea9y d\u01b0 h\u1ee3p ch\u1ea5t:<br \/>\n  &#8211; R\u1eeda b\u1eb1ng ch\u1ea5t t\u1ea9y d\u1ea7u trung t\u00ednh, sau \u0111\u00f3 tr\u00e1ng n\u01b0\u1edbc DI (n\u1ebfu c\u00f3).<br \/>\n&#8211; Passivation theo ASTM A967:<br \/>\n  &#8211; L\u1ef1a ch\u1ecdn an to\u00e0n v\u00e0 th\u00e2n thi\u1ec7n: citric 8\u201310%, 20\u201350\u00b0C, 10\u201330 ph\u00fat.<br \/>\n  &#8211; Ho\u1eb7c nitric 20\u201325% (kh\u00f4ng ch\u1ee9a ch\u1ea5t oxy h\u00f3a chloride), 20\u201350\u00b0C, 20\u201330 ph\u00fat.<br \/>\n&#8211; Trung h\u00f2a v\u00e0 tr\u00e1ng:<br \/>\n  &#8211; R\u1eeda \u00e1p l\u1ef1c, phun NaHCO3 1\u20132%, r\u1eeda l\u1ea1i \u0111\u1ebfn khi pH b\u1ec1 m\u1eb7t trung t\u00ednh (ki\u1ec3m tra gi\u1ea5y qu\u1ef3).<br \/>\n&#8211; S\u1ea5y kh\u00f4 b\u1eb1ng kh\u00ed n\u00e9n l\u1ecdc \u1ea9m \u0111\u1ec3 tr\u00e1nh v\u1ec7t n\u01b0\u1edbc.<\/p>\n<h3>B\u01b0\u1edbc 6 \u2013 B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t sau khi \u0111\u00e1nh b\u00f3ng<\/h3>\n<p>&#8211; Trong nh\u00e0: ph\u1ee7 s\u00e1p carnauba ho\u1eb7c sealant polymer\/nano SiO2 m\u1ecfng \u0111\u1ec3 gi\u1ea3m b\u00e1m v\u00e2n tay.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi\/ven bi\u1ec3n: v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt; c\u00e2n nh\u1eafc l\u1edbp ph\u1ee7 nano ceramic chuy\u00ean d\u1ee5ng. Tr\u00e1nh ti\u1ebfp x\u00fac clo\/thu\u1ed1c t\u1ea9y.<\/p>\n<h2 id=\"toc-4-quy-trinh-rut-gon-theo-tinh-huong-thuc-te\">Quy tr\u00ecnh r\u00fat g\u1ecdn theo t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/h2>\n<p>&#8211; \u1ed0 nh\u1eb9, kh\u00f4ng x\u01b0\u1edbc: t\u1ea9y oxalic \u2192 P1000 \u2192 P1500 \u2192 P2000 \u2192 buff xanh \u2192 buff tr\u1eafng \u2192 passivation citric.<br \/>\n&#8211; X\u01b0\u1edbc trung b\u00ecnh: P400 \u2192 P600 \u2192 P800 \u2192 P1200 \u2192 buff \u0111en \u2192 buff xanh \u2192 buff tr\u1eafng \u2192 passivation.<br \/>\n&#8211; Sau h\u00e0n \u0111\u1ed5i m\u00e0u n\u1eb7ng: pickling gel \u2192 r\u1eeda &#038; trung h\u00f2a \u2192 P600 \u2192 P800 \u2192 P1200 \u2192 buff xanh \u2192 buff tr\u1eafng \u2192 passivation.<\/p>\n<h2 id=\"toc-5-kiem-soat-chat-luong-va-do-luong\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111o l\u01b0\u1eddng<\/h2>\n<p>&#8211; \u0110\u1ed9 nh\u00e1m Ra: m\u1ee5c ti\u00eau \u2264 0,05 \u03bcm (m\u00e1y \u0111o nh\u00e1m).<br \/>\n&#8211; \u0110\u1ed9 b\u00f3ng GU 60\u00b0: \u2265 90 (m\u00e1y glossmeter).<br \/>\n&#8211; Ki\u1ec3m tra th\u1ee5 \u0111\u1ed9ng h\u00f3a: th\u1eed n\u01b0\u1edbc tr\u00e0n (water-break-free), th\u1eed dung d\u1ecbch \u0111\u1ed3ng sunfat ho\u1eb7c ferroxyl theo ASTM A967\/A380 (khi c\u00f3 \u0111i\u1ec1u ki\u1ec7n ph\u00f2ng th\u00ed nghi\u1ec7m).<br \/>\n&#8211; Quan s\u00e1t \u00e1nh s\u00e1ng xi\u00ean: kh\u00f4ng c\u00f2n qu\u1ea7ng\/hologram, kh\u00f4ng \u201cda cam\u201d.<\/p>\n<h2 id=\"toc-6-thoi-luong-chi-phi-va-toi-uu-hoa\">Th\u1eddi l\u01b0\u1ee3ng, chi ph\u00ed v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/h2>\n<p>&#8211; Th\u1eddi l\u01b0\u1ee3ng tham kh\u1ea3o (t\u1ea5m ph\u1eb3ng, t\u1eeb 2B l\u00ean g\u01b0\u01a1ng): 2\u20134 gi\u1edd\/m\u00b2 t\u00f9y m\u1ee9c x\u01b0\u1edbc; ph\u1ee5c h\u1ed3i t\u1eeb b\u1ec1 m\u1eb7t g\u01b0\u01a1ng c\u0169: 1\u20132 gi\u1edd\/m\u00b2.<br \/>\n&#8211; Ti\u00eau hao v\u1eadt t\u01b0: nh\u00e1m v\u00e0 compound chi\u1ebfm 10\u201320% chi ph\u00ed; b\u00e1nh \u0111\u00e1nh b\u00f3ng c\u1ea7n thay\/\u201cc\u1ea1o\u201d \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 gi\u1eef t\u1ed1c \u0111\u1ed9 c\u1eaft.<br \/>\n&#8211; T\u1ed1i \u01b0u: kh\u00f4ng nh\u1ea3y c\u1ea5p h\u1ea1t; v\u1ec7 sinh gi\u1eefa c\u00e1c b\u01b0\u1edbc; ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9\u2013\u00e1p l\u1ef1c \u0111\u1ec3 gi\u1ea3m gi\u1edd c\u00f4ng.<\/p>\n<h2 id=\"toc-7-luu-y-an-toan-va-loi-thuong-gap\">L\u01b0u \u00fd an to\u00e0n v\u00e0 l\u1ed7i th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng d\u00f9ng b\u00fai s\u1eaft carbon ho\u1eb7c h\u00f3a ch\u1ea5t ch\u1ee9a chloride (thu\u1ed1c t\u1ea9y) tr\u00ean inox.<br \/>\n&#8211; Kh\u00f4ng \u0111\u1ec3 h\u00f3a ch\u1ea5t (\u0111\u1eb7c bi\u1ec7t gel pickling) kh\u00f4 tr\u00ean b\u1ec1 m\u1eb7t; lu\u00f4n trung h\u00f2a v\u00e0 r\u1eeda k\u1ef9.<br \/>\n&#8211; Kh\u00f4ng pha l\u1eabn compound kh\u00e1c c\u1ea5p tr\u00ean c\u00f9ng b\u00e1nh; g\u1eafn nh\u00e3n t\u1eebng b\u00e1nh theo m\u00e0u compound.<br \/>\n&#8211; Tr\u00e1nh qu\u00e1 nhi\u1ec7t khi buffing; lu\u00f4n di chuy\u1ec3n \u0111\u1ec1u, \u01b0u ti\u00ean nhi\u1ec1u l\u01b0\u1ee3t nh\u1eb9 thay v\u00ec \u00e9p m\u1ea1nh.<br \/>\n&#8211; Thu gom v\u00e0 x\u1eed l\u00fd ch\u1ea5t th\u1ea3i theo quy \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng; tham kh\u1ea3o SDS c\u1ee7a h\u00f3a ch\u1ea5t.<\/p>\n<h2 id=\"toc-8-so-sanh-co-hoc-danh-bong-va-dien-hoa-electropolish\">So s\u00e1nh c\u01a1 h\u1ecdc \u0111\u00e1nh b\u00f3ng v\u00e0 \u0111i\u1ec7n h\u00f3a (electropolishing)<\/h2>\n<p>&#8211; C\u01a1 h\u1ecdc (m\u00e0i\u2013buff): linh ho\u1ea1t, \u0111\u1ea7u t\u01b0 th\u1ea5p, ph\u00f9 h\u1ee3p x\u01b0\u1edfng; \u0111\u1ea1t 8K tr\u00ean h\u1ea7u h\u1ebft chi ti\u1ebft ph\u1eb3ng\/\u1ed1ng.<br \/>\n&#8211; \u0110i\u1ec7n h\u00f3a: \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean chi ti\u1ebft ph\u1ee9c t\u1ea1p, tri\u1ec7t ti\u00eau \u201cbavia vi m\u00f4\u201d, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n; y\u00eau c\u1ea7u thi\u1ebft b\u1ecb, \u0111i\u1ec7n gi\u1ea3i (th\u01b0\u1eddng phosphoric + sulfuric), an to\u00e0n nghi\u00eam ng\u1eb7t.<br \/>\n&#8211; L\u1ef1a ch\u1ecdn: chi ti\u1ebft ph\u1ee9c t\u1ea1p ho\u1eb7c y\u00eau c\u1ea7u v\u1ec7 sinh cao (th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c) c\u00e2n nh\u1eafc electropolishing; chi ti\u1ebft ph\u1eb3ng, \u1ed1ng h\u1ed9p \u2013 \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc t\u1ed1i \u01b0u chi ph\u00ed.<\/p>\n<h2 id=\"toc-9-bao-duong-sau-phuc-hoi-de-be-mat-giu-bong-lau\">B\u1ea3o d\u01b0\u1ee1ng sau ph\u1ee5c h\u1ed3i \u0111\u1ec3 b\u1ec1 m\u1eb7t gi\u1eef b\u00f3ng l\u00e2u<\/h2>\n<p>&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 kh\u0103n microfiber; ch\u1ea5t t\u1ea9y pH trung t\u00ednh.<br \/>\n&#8211; Sau m\u01b0a bi\u1ec3n\/s\u01b0\u01a1ng mu\u1ed1i: r\u1eeda b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt ngay khi c\u00f3 th\u1ec3.<br \/>\n&#8211; Lo\u1ea1i b\u1ecf v\u1ebft v\u00e2n tay b\u1eb1ng dung d\u1ecbch isopropyl lo\u00e3ng; tr\u00e1nh v\u1eadt c\u1ee9ng l\u00e0m x\u01b0\u1edbc.<br \/>\n&#8211; L\u1eb7p l\u1ea1i passivation citric \u0111\u1ecbnh k\u1ef3 (6\u201312 th\u00e1ng) cho c\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi\/ven bi\u1ec3n.<\/p>\n<h2 id=\"toc-10-vi-du-ung-dung-nhanh\">V\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng nhanh<\/h2>\n<p>&#8211; Cabin thang m\u00e1y 304 b\u1ecb m\u1edd v\u00e0 x\u01b0\u1edbc n\u00f4ng: P800 \u2192 P1200 \u2192 P1500 \u2192 buff xanh \u2192 buff tr\u1eafng \u2192 passivation citric \u2192 ph\u1ee7 sealant polymer; th\u1eddi l\u01b0\u1ee3ng 1\u20131,5 gi\u1edd\/m\u00b2.<br \/>\n&#8211; Lan can ngo\u00e0i tr\u1eddi 201 b\u1ecb \u201c\u1ed1 tr\u00e0\u201d: t\u1ea9y oxalic \u2192 P600 \u2192 P1000 \u2192 P1500 \u2192 buff tr\u1eafng \u2192 passivation citric; t\u0103ng t\u1ea7n su\u1ea5t r\u1eeda n\u01b0\u1edbc ng\u1ecdt sau khi ph\u1ee5c h\u1ed3i.<br \/>\n&#8211; B\u1ed3n, ch\u1eadu c\u00f4ng nghi\u1ec7p 316 sau h\u00e0n: pickling gel v\u00f9ng h\u00e0n \u2192 P800 c\u1ee5c b\u1ed9 \u2192 buff xanh \u2192 passivation nitric\/citric; ki\u1ec3m tra water-break.<\/p>\n<h2 id=\"toc-11-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/h2>\n<p>&#8211; ASTM A967\/A967M \u2013 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts.<br \/>\n&#8211; ASTM A380\/A380M \u2013 Cleaning, Descaling, and Passivation of Stainless Steel Parts.<br \/>\n&#8211; Nickel Institute \u2013 Care and Cleaning of Stainless Steel; Guidelines for Corrosion Prevention.<br \/>\n&#8211; ASSDA Technical Bulletin \u2013 Preventing Tea Staining on Stainless Steel.<br \/>\n&#8211; Outokumpu Stainless Steel Surface Finish Guidelines; Datasheets Menzerna for Stainless Compounds.<\/p>\n<h2 id=\"toc-12-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ec3 ph\u1ee5c h\u1ed3i inox c\u0169, m\u1edd l\u00ean \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K b\u1ec1n \u0111\u1eb9p, b\u1ea1n c\u1ea7n: (1) l\u00e0m s\u1ea1ch\u2013x\u1eed l\u00fd \u1ed1 \u0111\u00fang c\u00e1ch; (2) m\u00e0i theo c\u1ea5p h\u1ea1t tu\u1ea7n t\u1ef1 \u0111\u1ebfn P1500\u2013P2000; (3) buff ba giai \u0111o\u1ea1n v\u1edbi compound ph\u00f9 h\u1ee3p; (4) passivation theo ASTM A967; (5) b\u1ea3o v\u1ec7 v\u00e0 b\u1ea3o d\u01b0\u1ee1ng \u0111\u1ecbnh k\u1ef3. Tu\u00e2n th\u1ee7 chu\u1ea9n an to\u00e0n v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd gi\u00fap b\u1ec1 m\u1eb7t \u0111\u1ea1t Ra \u2264 0,05 \u03bcm, b\u00f3ng s\u00e2u, ch\u1ed1ng t\u00e1i \u1ed1 t\u1ed1t.<\/p>\n<p>C\u1ea7n quy tr\u00ecnh t\u1ed1i \u01b0u cho v\u1eadt li\u1ec7u\/\u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn chu\u1ea9n x\u01b0\u1edfng ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K cho inox c\u0169, m\u1edd: \u0111\u00e1nh gi\u00e1, m\u00e0i\u2013\u0111\u00e1nh b\u00f3ng theo c\u1ea5p h\u1ea1t, h\u00f3a ch\u1ea5t t\u1ea9y\/thalate, passivation ASTM A967, an to\u00e0n.<\/p>\n","protected":false},"author":7,"featured_media":1024,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1952","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\/1952","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=1952"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1952\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1024"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}