{"id":1507,"date":"2026-01-03T12:33:33","date_gmt":"2026-01-03T05:33:33","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/quy-trinh-phuc-hoi-bong-guong-8k-cho-inox-cu-mo-chuan-ky-thuat\/"},"modified":"2026-01-03T12:33:33","modified_gmt":"2026-01-03T05:33:33","slug":"quy-trinh-phuc-hoi-bong-guong-8k-cho-inox-cu-mo-chuan-ky-thuat","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/quy-trinh-phuc-hoi-bong-guong-8k-cho-inox-cu-mo-chuan-ky-thuat\/","title":{"rendered":"Quy tr\u00ecnh ph\u1ee5c h\u1ed3i b\u00f3ng g\u01b0\u01a1ng 8K cho inox c\u0169, m\u1edd \u2013 chu\u1ea9n k\u1ef9 thu\u1eadt"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-khi-nao-co-the-phuc-hoi-khi-nao-nen-thay-moi\">Khi n\u00e0o c\u00f3 th\u1ec3 ph\u1ee5c h\u1ed3i, khi n\u00e0o n\u00ean thay m\u1edbi<\/a><\/li>\n<li><a href=\"#toc-1-chuan-bi-dung-cu-vat-tu-va-an-toan\">Chu\u1ea9n b\u1ecb: d\u1ee5ng c\u1ee5, v\u1eadt t\u01b0 v\u00e0 an to\u00e0n<\/a><\/li>\n<li><a href=\"#toc-2-quy-trinh-tieu-chuan-8-buoc-dat-bong-guong-8k\">Quy tr\u00ecnh ti\u00eau chu\u1ea9n 8 b\u01b0\u1edbc \u0111\u1ea1t b\u00f3ng g\u01b0\u01a1ng 8K<\/a><\/li>\n<li><a href=\"#toc-3-quy-trinh-rut-gon-tai-cong-trinh-it-bui-it-on\">Quy tr\u00ecnh r\u00fat g\u1ecdn t\u1ea1i c\u00f4ng tr\u00ecnh (\u00edt b\u1ee5i, \u00edt \u1ed3n)<\/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-luu-y-theo-mac-thep-va-be-mat-goc\">L\u01b0u \u00fd theo m\u00e1c th\u00e9p v\u00e0 b\u1ec1 m\u1eb7t g\u1ed1c<\/a><\/li>\n<li><a href=\"#toc-6-loi-thuong-gap-va-cach-khac-phuc\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-7-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-8-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-9-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 cho inox c\u0169, m\u1edd l\u00e0 h\u1ea1ng m\u1ee5c then ch\u1ed1t trong b\u1ea3o d\u01b0\u1ee1ng v\u00e0 ph\u1ee5c h\u1ed3i s\u1ea3n ph\u1ea9m inox. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p quy tr\u00ecnh ti\u00eau chu\u1ea9n t\u1eeb \u0111\u00e1nh gi\u00e1 hi\u1ec7n tr\u1ea1ng, l\u1ef1a ch\u1ecdn v\u1eadt t\u01b0 \u2013 thi\u1ebft b\u1ecb, \u0111\u1ebfn c\u00e1c b\u01b0\u1edbc m\u00e0i, \u0111\u00e1nh b\u00f3ng, th\u1ee5 \u0111\u1ed9ng h\u00f3a v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng, gi\u00fap \u0111\u1ea1t b\u1ec1 m\u1eb7t b\u00f3ng g\u01b0\u01a1ng (8K) \u1ed5n \u0111\u1ecbnh, b\u1ec1n v\u00e0 an to\u00e0n.<\/p>\n<h2 id=\"toc-0-khi-nao-co-the-phuc-hoi-khi-nao-nen-thay-moi\">Khi n\u00e0o c\u00f3 th\u1ec3 ph\u1ee5c h\u1ed3i, khi n\u00e0o n\u00ean thay m\u1edbi<\/h2>\n<p>&#8211; C\u00f3 th\u1ec3 ph\u1ee5c h\u1ed3i khi:<br \/>\n  &#8211; Tr\u1ea7y x\u01b0\u1edbc v\u1eeba \u2013 n\u00f4ng, \u1ed1 v\u00e0ng, \u1ed1 tr\u00e0, v\u1ebft v\u00e2n tay, m\u00e0ng oxy h\u00f3a nh\u1eb9, v\u1ebft nhi\u1ec7t h\u00e0n (heat tint) b\u1ec1 m\u1eb7t.<br \/>\n  &#8211; \u0102n m\u00f2n r\u1ed7 nh\u1ecf l\u1ebb (pitting < 0,2 mm) ch\u01b0a lan r\u1ed9ng.\n  - Chi ti\u1ebft c\u00f3 chi\u1ec1u d\u00e0y \u0111\u1ee7 sau khi m\u00e0i (\u2265 0,8 mm \u0111\u1ed1i v\u1edbi t\u1ea5m m\u1ecfng; m\u00e9p bo kh\u00f4ng qu\u00e1 s\u1eafc).\n- N\u00ean c\u00e2n nh\u1eafc thay m\u1edbi khi:\n  - R\u1ed7 s\u00e2u, k\u1ebd n\u1ee9t, \u0103n m\u00f2n khe n\u1eb7ng, cong v\u00eanh do qu\u00e1 nhi\u1ec7t, m\u00f2n m\u1ecfng m\u00e9p.\n  - N\u1ec1n v\u1eadt li\u1ec7u ferritic\/martensitic r\u1ebb ti\u1ec1n (v\u00ed d\u1ee5 201, 430) \u1edf m\u00f4i tr\u01b0\u1eddng bi\u1ec3n\/ho\u00e1 ch\u1ea5t; ph\u1ee5c h\u1ed3i \u0111\u01b0\u1ee3c nh\u01b0ng \u0111\u1ed9 b\u1ec1n s\u00e1ng b\u00f3ng k\u00e9m h\u01a1n 304\/316.\n  - Gia c\u00f4ng h\u00e0n k\u00e9m, nhi\u1ec5m s\u1eaft n\u1eb7ng do d\u00f9ng chung d\u1ee5ng c\u1ee5 v\u1edbi th\u00e9p cacbon.\n\n\n\n<h2 id=\"toc-1-chuan-bi-dung-cu-vat-tu-va-an-toan\">Chu\u1ea9n b\u1ecb: d\u1ee5ng c\u1ee5, v\u1eadt t\u01b0 v\u00e0 an to\u00e0n<\/h2>\n<p>&#8211; Thi\u1ebft b\u1ecb:<br \/>\n  &#8211; M\u00e1y m\u00e0i g\u00f3c 100\u2013125 mm (\u0111i\u1ec1u t\u1ed1c 2.000\u201310.000 rpm); m\u00e1y ch\u00e0 qu\u1ef9 \u0111\u1ea1o (random orbital) 125\u2013150 mm; m\u00e1y \u0111\u00e1nh b\u00f3ng t\u1ed1c \u0111\u1ed9 th\u1ea5p 600\u20132.000 rpm; m\u00e1y m\u00e0i b\u0103ng\/burnisher cho \u1ed1ng, thanh.<br \/>\n  &#8211; H\u00fat b\u1ee5i c\u1ee5c b\u1ed9, \u0111\u00e8n chi\u1ebfu 500\u20131.000 lux, \u0111\u1ed3ng h\u1ed3 \u0111o t\u1ed1c \u0111\u1ed9 quay (n\u1ebfu c\u00f3).<br \/>\n&#8211; V\u1eadt t\u01b0 m\u00e0i \u2013 \u0111\u00e1nh b\u00f3ng:<br \/>\n  &#8211; Nh\u00e1m \u0111\u0129a\/nh\u00e1m t\u1edd SiC\/Al2O3: P120, P180, P240, P320, P400, P600, P800, P1000, P1500, P2000.<br \/>\n  &#8211; V\u1eadt li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac: 3M Trizact A45, A30, A16, A6 (t\u00f9y ng\u00e2n s\u00e1ch).<br \/>\n  &#8211; N\u1ec9\/felt, b\u00e1nh sisal (gi\u1ebb b\u00f2), b\u00e1nh v\u1ea3i cotton x\u1ebfp, b\u00e1nh v\u1ea3i m\u1ec1m ho\u00e0n thi\u1ec7n.<br \/>\n  &#8211; H\u1ee3p ch\u1ea5t \u0111\u00e1nh b\u00f3ng: b\u00e1nh\/kem xanh (Cr2O3) cho ti\u1ec1n g\u01b0\u01a1ng; b\u00e1nh\/kem tr\u1eafng (Al2O3) cho g\u01b0\u01a1ng; c\u00f3 th\u1ec3 b\u1ed5 sung h\u1ee3p ch\u1ea5t si\u00eau m\u1ecbn ch\u1ee9a ceria\/alumina.<br \/>\n  &#8211; Ch\u1ea5t t\u1ea9y d\u1ea7u pH trung t\u00ednh; c\u1ed3n isopropyl (IPA) 70\u201399%.<br \/>\n  &#8211; Dung d\u1ecbch th\u1ee5 \u0111\u1ed9ng h\u00f3a an to\u00e0n: axit citric 4\u201310% (theo ASTM A967).<br \/>\n  &#8211; N\u01b0\u1edbc r\u1eeda: RO\/DI khuy\u1ebfn ngh\u1ecb (TDS < 50 ppm) \u0111\u1ec3 h\u1ea1n ch\u1ebf v\u1ec7t mu\u1ed1i.\n  - Kh\u0103n microfiber 320\u2013400 gsm, b\u0103ng keo che ch\u1eafn, m\u00e0ng b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t.\n- An to\u00e0n:\n  - PPE \u0111\u1ea7y \u0111\u1ee7: k\u00ednh, kh\u1ea9u trang l\u1ecdc b\u1ee5i P2\/P3, g\u0103ng, b\u1ea3o v\u1ec7 tai.\n  - L\u00e0m vi\u1ec7c th\u00f4ng tho\u00e1ng, tr\u00e1nh tia l\u1eeda g\u1ea7n dung m\u00f4i. Kh\u00f4ng d\u00f9ng b\u00f9i nh\u00f9i th\u00e9p (steel wool) v\u00ec g\u00e2y nhi\u1ec5m s\u1eaft.\n  - Pickling\/axit HF ch\u1ec9 do \u0111\u01a1n v\u1ecb chuy\u00ean m\u00f4n \u0111\u01b0\u1ee3c ph\u00e9p th\u1ef1c hi\u1ec7n. Trong \u0111a s\u1ed1 tr\u01b0\u1eddng h\u1ee3p t\u1ea1i x\u01b0\u1edfng\/c\u00f4ng tr\u00ecnh, \u01b0u ti\u00ean th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1eb1ng axit citric.\n\n\n\n<h2 id=\"toc-2-quy-trinh-tieu-chuan-8-buoc-dat-bong-guong-8k\">Quy tr\u00ecnh ti\u00eau chu\u1ea9n 8 b\u01b0\u1edbc \u0111\u1ea1t b\u00f3ng g\u01b0\u01a1ng 8K<\/h2>\n<h3>1) T\u1ea9y d\u1ea7u v\u00e0 kh\u1eed nhi\u1ec5m ban \u0111\u1ea7u<\/h3>\n<p>&#8211; R\u1eeda b\u1eb1ng ch\u1ea5t t\u1ea9y pH trung t\u00ednh, ch\u00e0 nh\u1eb9 b\u1eb1ng pad s\u1ee3i t\u1ed5ng h\u1ee3p kh\u00f4ng ch\u1ee9a s\u1eaft. X\u1ecbt r\u1eeda n\u01b0\u1edbc s\u1ea1ch, lau kh\u00f4.<br \/>\n&#8211; Ki\u1ec3m tra nhi\u1ec5m s\u1eaft: nh\u1ecf gi\u1ecdt n\u01b0\u1edbc xem hi\u1ec7n t\u01b0\u1ee3ng \u201ckh\u00f4ng b\u00e1m n\u01b0\u1edbc\u201d (water-break) sau t\u1ea9y; n\u1ebfu n\u01b0\u1edbc d\u00e0n \u0111\u1ec1u l\u00e0 s\u1ea1ch d\u1ea7u t\u1ed1t.<\/p>\n<h3>2) X\u1eed l\u00fd r\u1ec9, \u1ed1, v\u1ec7t nhi\u1ec7t h\u00e0n<\/h3>\n<p>&#8211; \u1ed0 tr\u00e0\/\u0111\u1ed1m v\u00e0ng nh\u1ea1t: d\u00f9ng pad kh\u00f4ng d\u1ec7t m\u1ecbn + ch\u1ea5t t\u1ea9y g\u1ec9 kh\u00f4ng ch\u1ee9a clorua.<br \/>\n&#8211; V\u1ec7t nhi\u1ec7t h\u00e0n\/\u0111\u1ed5i m\u00e0u: m\u00e0i nh\u1eb9 b\u1eb1ng P240\u2013P320 theo v\u00f9ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<br \/>\n&#8211; R\u1ec9 n\u00e2u nh\u1ea1t: x\u1eed l\u00fd b\u1eb1ng gel t\u1ea9y g\u1ec9 g\u1ed1c axit h\u1eefu c\u01a1; r\u1eeda n\u01b0\u1edbc RO\/DI, lau kh\u00f4.<br \/>\n&#8211; L\u01b0u \u00fd: n\u1ebfu c\u1ea7n t\u1ea9y m\u1ed1i h\u00e0n\/t\u1ea9y c\u1eb7n oxit d\u00e0y, d\u00f9ng ph\u01b0\u01a1ng \u00e1n pickling chuy\u00ean nghi\u1ec7p; sau \u0111\u00f3 ph\u1ea3i trung h\u00f2a, r\u1eeda k\u1ef9 v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a.<\/p>\n<h3>3) S\u1eeda khuy\u1ebft t\u1eadt s\u00e2u \u2013 m\u00e0i th\u00f4<\/h3>\n<p>&#8211; G\u00e3i s\u00e2u\/tr\u1ea7y x\u01b0\u1edbc > 50 \u00b5m: b\u1eaft \u0111\u1ea7u P120\u2013P180. Gi\u1eef \u00e1p l\u1ef1c 1\u20132 kgf, kh\u00f4ng qu\u00e1 nhi\u1ec7t (nhi\u1ec7t b\u1ec1 m\u1eb7t < 60\u00b0C).\n- M\u00e0i theo m\u1ed9t h\u01b0\u1edbng nh\u1ea5t qu\u00e1n; lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n v\u1ebft tr\u1ea7y tr\u01b0\u1edbc khi t\u0103ng c\u1ea5p h\u1ea1t.\n\n\n\n<h3>4) San ph\u1eb3ng v\u00e0 tinh d\u1ea7n theo chu\u1ed7i c\u1ea5p h\u1ea1t<\/h3>\n<p>&#8211; Ti\u1ebfn tr\u00ecnh khuy\u1ebfn ngh\u1ecb: P240 \u2192 P320 \u2192 P400 \u2192 P600 \u2192 P800 \u2192 P1000 \u2192 P1500 \u2192 P2000.<br \/>\n&#8211; Nguy\u00ean t\u1eafc:<br \/>\n  &#8211; M\u1ed7i c\u1ea5p h\u1ea1t m\u00e0i ch\u00e9o 90\u00b0 so v\u1edbi c\u1ea5p tr\u01b0\u1edbc \u0111\u1ec3 d\u1ec5 quan s\u00e1t v\u1ebft c\u00f2n l\u1ea1i.<br \/>\n  &#8211; Ch\u1ec9 chuy\u1ec3n c\u1ea5p khi 80\u201390% v\u1ebft x\u01b0\u1edbc c\u1ea5p tr\u01b0\u1edbc bi\u1ebfn m\u1ea5t.<br \/>\n  &#8211; \u0110\u0129a quay: t\u1ed1c \u0111\u1ed9 ngo\u1ea1i vi 8\u201312 m\/s, m\u00e1y ch\u00e0 qu\u1ef9 \u0111\u1ea1o 6\u20138 mm qu\u1ef9 \u0111\u1ea1o, 5.000\u20138.000 OPM.<br \/>\n&#8211; V\u1edbi \u1ed1ng tay v\u1ecbn\/khung: d\u00f9ng b\u0103ng nh\u00e1m v\u00e0 n\u1ec9 d\u1ea1ng \u0111ai, gi\u1eef t\u1ed1c \u0111\u1ed9 b\u1ec1 m\u1eb7t 10\u201315 m\/s.<\/p>\n<h3>5) Ti\u1ec1n g\u01b0\u01a1ng b\u1eb1ng v\u1eadt li\u1ec7u c\u1ea5u tr\u00fac ho\u1eb7c n\u1ec9 m\u1ecbn<\/h3>\n<p>&#8211; D\u00f9ng Trizact A45 \u2192 A30 \u2192 A16 \u2192 A6 ho\u1eb7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u00e1m n\u01b0\u1edbc si\u00eau m\u1ecbn.<br \/>\n&#8211; M\u1ee5c ti\u00eau Ra: ~0,05\u20130,1 \u00b5m tr\u01b0\u1edbc khi chuy\u1ec3n sang \u0111\u00e1nh g\u01b0\u01a1ng.<br \/>\n&#8211; Lau s\u1ea1ch b\u1ee5i m\u00e0i gi\u1eefa c\u00e1c b\u01b0\u1edbc, tr\u00e1nh h\u1ea1t th\u00f4 l\u1eabn v\u00e0o c\u00f4ng \u0111o\u1ea1n m\u1ecbn.<\/p>\n<h3>6) \u0110\u00e1nh b\u00f3ng g\u01b0\u01a1ng (8K)<\/h3>\n<p>&#8211; Thi\u1ebft l\u1eadp:<br \/>\n  &#8211; B\u01b0\u1edbc 1: b\u00e1nh sisal + h\u1ee3p ch\u1ea5t xanh (Cr2O3). T\u1ed1c \u0111\u1ed9 1.500\u20132.000 rpm \u0111\u1ed1i v\u1edbi m\u00e1y 180 mm, \u00e1p l\u1ef1c v\u1eeba ph\u1ea3i, \u0111i ch\u1eadm, kh\u00f4ng d\u1eebng t\u1ea1i m\u1ed9t \u0111i\u1ec3m.<br \/>\n  &#8211; B\u01b0\u1edbc 2: b\u00e1nh v\u1ea3i cotton trung b\u00ecnh + h\u1ee3p ch\u1ea5t xanh\/ tr\u1eafng \u0111\u1ec3 x\u00f3a v\u1ebft sisal.<br \/>\n  &#8211; B\u01b0\u1edbc 3: b\u00e1nh v\u1ea3i m\u1ec1m ho\u1eb7c n\u1ec9 + h\u1ee3p ch\u1ea5t tr\u1eafng si\u00eau m\u1ecbn \u0111\u1ec3 \u0111\u1ea1t g\u01b0\u01a1ng s\u00e2u.<br \/>\n&#8211; K\u1ef9 thu\u1eadt:<br \/>\n  &#8211; \u201cN\u1ea1p\u201d h\u1ee3p ch\u1ea5t \u00edt v\u00e0 \u0111\u1ec1u; l\u00e0m s\u1ea1ch b\u00e1nh khi b\u1ebft b\u1eb1ng l\u01b0\u1ee3c v\u1ec7 sinh.<br \/>\n  &#8211; Ki\u1ec3m so\u00e1t nhi\u1ec7t, ch\u1ea1m tay ki\u1ec3m tra; n\u1ebfu n\u00f3ng, ngh\u1ec9 \u0111\u1ec3 ngu\u1ed9i.<br \/>\n  &#8211; Quan s\u00e1t d\u01b0\u1edbi \u0111\u00e8n g\u00f3c xi\u00ean; xoay h\u01b0\u1edbng ch\u1ea1y \u0111\u1ec3 lo\u1ea1i qu\u1ea7ng.<br \/>\n&#8211; K\u1ebft qu\u1ea3: b\u1ec1 m\u1eb7t soi g\u01b0\u01a1ng, kh\u00f4ng v\u1ec7t xo\u00e1y, \u0111\u1ed3ng nh\u1ea5t tr\u00ean to\u00e0n v\u00f9ng.<\/p>\n<h3>7) Th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) sau \u0111\u00e1nh b\u00f3ng<\/h3>\n<p>&#8211; M\u1ee5c ti\u00eau: t\u00e1i t\u1ea1o l\u1edbp oxit crom b\u1ea3o v\u1ec7, gi\u1ea3m nguy c\u01a1 \u1ed1\/r\u1ec9 v\u1ec1 sau.<br \/>\n&#8211; Ph\u00e1c \u0111\u1ed3 tham kh\u1ea3o ASTM A967 (citric):<br \/>\n  &#8211; Dung d\u1ecbch axit citric 4\u201310% \u1edf 50\u201360\u00b0C, ng\u00e2m ho\u1eb7c \u0111\u1eafp 20\u201330 ph\u00fat.<br \/>\n  &#8211; R\u1eeda k\u1ef9 b\u1eb1ng n\u01b0\u1edbc RO\/DI \u0111\u1ebfn khi pH trung t\u00ednh, s\u1ea5y kh\u00f4 b\u1eb1ng kh\u00ed s\u1ea1ch.<br \/>\n&#8211; Tr\u00e1nh d\u00f9ng ch\u1ea5t t\u1ea9y ch\u1ee9a clo (nh\u01b0 Javel). N\u1ebfu bu\u1ed9c ti\u1ebfp x\u00fac clo, r\u1eeda ngay b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch.<\/p>\n<h3>8) L\u00e0m s\u1ea1ch cu\u1ed1i v\u00e0 b\u1ea3o v\u1ec7<\/h3>\n<p>&#8211; Lau c\u01b0\u0301ng v\u1ebft h\u1ee3p ch\u1ea5t b\u1eb1ng IPA 70\u201399% v\u00e0 kh\u0103n microfiber s\u1ea1ch.<br \/>\n&#8211; T\u00f9y \u1ee9ng d\u1ee5ng, c\u00f3 th\u1ec3 ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7:<br \/>\n  &#8211; Dung d\u1ecbch b\u1ea3o v\u1ec7 g\u1ed1c s\u00e1p\/siO2 (nano ceramic) m\u1ecfng \u0111\u1ec3 gi\u1ea3m b\u00e1m b\u1ea9n.<br \/>\n  &#8211; M\u00e0ng film b\u1ea3o v\u1ec7 t\u1ea1m th\u1eddi cho v\u1eadn chuy\u1ec3n\/l\u1eafp \u0111\u1eb7t.<\/p>\n<h2 id=\"toc-3-quy-trinh-rut-gon-tai-cong-trinh-it-bui-it-on\">Quy tr\u00ecnh r\u00fat g\u1ecdn t\u1ea1i c\u00f4ng tr\u00ecnh (\u00edt b\u1ee5i, \u00edt \u1ed3n)<\/h2>\n<p>&#8211; Che ch\u1eafn khu v\u1ef1c, d\u00f9ng m\u00e1y ch\u00e0 qu\u1ef9 \u0111\u1ea1o + h\u00fat b\u1ee5i t\u00edch h\u1ee3p.<br \/>\n&#8211; X\u1eed l\u00fd: t\u1ea9y d\u1ea7u \u2192 P400\/P600 ch\u1ea5m \u0111i\u1ec3m \u2192 P800\/P1000 \u2192 pad kh\u00f4ng d\u1ec7t si\u00eau m\u1ecbn \u2192 b\u00e1nh n\u1ec9 nh\u1ecf + kem tr\u1eafng.<br \/>\n&#8211; Tr\u00e1nh t\u1ea1o tia l\u1eeda; \u01b0u ti\u00ean h\u1ee3p ch\u1ea5t l\u1ecfng, t\u1ed1c \u0111\u1ed9 th\u1ea5p \u0111\u1ec3 ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 ti\u1ebfng \u1ed3n.<\/p>\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; M\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt tham kh\u1ea3o:<br \/>\n  &#8211; Ra sau \u0111\u00e1nh b\u00f3ng: \u2264 0,02\u20130,05 \u00b5m \u0111\u1ed1i v\u1edbi g\u01b0\u01a1ng n\u1ed9i th\u1ea5t cao c\u1ea5p.<br \/>\n  &#8211; \u0110\u1ed9 b\u00f3ng gloss 60\u00b0: > 800 GU (t\u00f9y thi\u1ebft b\u1ecb \u0111o, ch\u1ec9 s\u1ed1 tham chi\u1ebfu).<br \/>\n&#8211; Ki\u1ec3m tra:<br \/>\n  &#8211; Quan s\u00e1t d\u01b0\u1edbi \u00e1nh s\u00e1ng 500\u20131.000 lux, g\u00f3c xi\u00ean 30\u201360\u00b0, c\u00e1ch m\u1eaft 0,5\u20131,0 m.<br \/>\n  &#8211; Th\u1eed \u201cwater-break\u201d sau t\u1ea9y \u0111\u1ec3 ch\u1eafc ch\u1eafn b\u1ec1 m\u1eb7t s\u1ea1ch d\u1ea7u.<br \/>\n  &#8211; Soi v\u1ec7t xo\u00e1y b\u1eb1ng \u0111\u00e8n LED \u0111i\u1ec3m; n\u1ebfu th\u1ea5y \u201cqu\u1ea7ng hologram\u201d, ho\u00e0n thi\u1ec7n l\u1ea1i b\u1eb1ng b\u00e1nh v\u1ea3i m\u1ec1m + h\u1ee3p ch\u1ea5t tr\u1eafng.<br \/>\n&#8211; L\u1eadp m\u1eabu chu\u1ea9n (coupon) tr\u01b0\u1edbc khi thi c\u00f4ng di\u1ec7n r\u1ed9ng \u0111\u1ec3 th\u1ed1ng nh\u1ea5t k\u1ef3 v\u1ecdng.<\/p>\n<h2 id=\"toc-5-luu-y-theo-mac-thep-va-be-mat-goc\">L\u01b0u \u00fd theo m\u00e1c th\u00e9p v\u00e0 b\u1ec1 m\u1eb7t g\u1ed1c<\/h2>\n<p>&#8211; M\u00e1c th\u00e9p:<br \/>\n  &#8211; 304\/316: d\u1ec5 \u0111\u1ea1t g\u01b0\u01a1ng s\u00e2u, b\u1ec1n ngo\u00e0i tr\u1eddi (316 t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, clo).<br \/>\n  &#8211; 201\/430: \u0111\u00e1nh b\u00f3ng l\u00ean g\u01b0\u01a1ng \u0111\u01b0\u1ee3c nh\u01b0ng l\u1edbp th\u1ee5 \u0111\u1ed9ng k\u00e9m b\u1ec1n; c\u1ea7n b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean h\u01a1n.<br \/>\n&#8211; B\u1ec1 m\u1eb7t g\u1ed1c:<br \/>\n  &#8211; 2B\/BA: n\u1ec1n t\u1ed1t \u0111\u1ec3 l\u00ean 8K, \u00edt c\u00f4ng h\u01a1n so v\u1edbi b\u1ec1 m\u1eb7t b\u1ecb hairline s\u00e2u.<br \/>\n  &#8211; No.4\/hairline: mu\u1ed1n chuy\u1ec3n sang g\u01b0\u01a1ng ph\u1ea3i m\u00e0i x\u00f3a to\u00e0n b\u1ed9 h\u01b0\u1edbng x\u01b0\u1edbc.<br \/>\n  &#8211; \u0110\u00fac\/r\u00e8n: l\u1ed7 r\u1ed7 v\u00e0 inclusions nhi\u1ec1u; c\u1ea7n m\u00e0i san ph\u1eb3ng k\u1ef9, c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea1t g\u01b0\u01a1ng \u201cho\u00e0n h\u1ea3o\u201d nh\u01b0 t\u1ea5m c\u00e1n ngu\u1ed9i.<br \/>\n&#8211; H\u00ecnh d\u1ea1ng chi ti\u1ebft:<br \/>\n  &#8211; \u1ed0ng, bo cong: d\u00f9ng b\u00e1nh n\u1ec9\/\u0111ai; ch\u00fa \u00fd ph\u00e2n b\u1ed5 \u00e1p l\u1ef1c \u0111\u1ec3 tr\u00e1nh \u201cm\u1ea5p m\u00f4\u201d.<br \/>\n  &#8211; G\u00f3c trong\/khe: d\u00f9ng ch\u00f3p n\u1ec9, b\u00fat \u0111\u00e1nh b\u00f3ng, t\u1ed1c \u0111\u1ed9 th\u1ea5p tr\u00e1nh \u201cc\u1eafn\u201d m\u00e9p.<\/p>\n<h2 id=\"toc-6-loi-thuong-gap-va-cach-khac-phuc\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n<p>&#8211; B\u1ecf qua c\u1ea5p h\u1ea1t: c\u00f2n v\u1ebft \u201c\u0111u\u00f4i c\u00e1\u201d sau c\u00f9ng. Kh\u1eafc ph\u1ee5c: quay l\u1ea1i 1\u20132 c\u1ea5p tr\u01b0\u1edbc, m\u00e0i \u0111\u1ee7 th\u1eddi gian.<br \/>\n&#8211; Nhi\u1ec5m s\u1eaft: sau v\u00e0i tu\u1ea7n xu\u1ea5t hi\u1ec7n \u0111\u1ed1m n\u00e2u. Kh\u1eafc ph\u1ee5c: t\u1ea9y nhi\u1ec5m + th\u1ee5 \u0111\u1ed9ng h\u00f3a; d\u00f9ng d\u1ee5ng c\u1ee5 d\u00e0nh ri\u00eang cho inox.<br \/>\n&#8211; Qu\u00e1 nhi\u1ec7t: m\u00e0u v\u00e0ng\/xanh r\u01a1m, cong v\u00eanh. Kh\u1eafc ph\u1ee5c: gi\u1ea3m rpm\/\u00e1p l\u1ef1c, l\u00e0m m\u00e1t t\u1ef1 nhi\u00ean, b\u01b0\u1edbc l\u1ea1i 1 c\u1ea5p h\u1ea1t.<br \/>\n&#8211; B\u00e1nh v\u1ea3i b\u1ebft h\u1ee3p ch\u1ea5t: x\u01b0\u1edbc ng\u1eabu nhi\u00ean. Kh\u1eafc ph\u1ee5c: v\u1ec7 sinh b\u00e1nh th\u01b0\u1eddng xuy\u00ean, n\u1ea1p h\u1ee3p ch\u1ea5t \u00edt m\u00e0 \u0111\u1ec1u.<br \/>\n&#8211; D\u00f9ng ch\u1ea5t t\u1ea9y ch\u1ee9a clo: v\u1ec7t \u1ed1 tr\u1eafng\/r\u1ec9 nhanh. Kh\u1eafc ph\u1ee5c: r\u1eeda ngay, th\u1ee5 \u0111\u1ed9ng h\u00f3a l\u1ea1i b\u1eb1ng citric.<\/p>\n<h2 id=\"toc-7-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; M\u1ea5t bao l\u00e2u cho 1 m\u00b2?<br \/>\n  &#8211; Ph\u1ee5c h\u1ed3i n\u1eb7ng (t\u1eeb x\u01b0\u1edbc s\u00e2u l\u00ean 8K): 3\u20136 gi\u1edd\/m\u00b2 t\u00f9y tay ngh\u1ec1 v\u00e0 thi\u1ebft b\u1ecb.<br \/>\n  &#8211; B\u1ea3o d\u01b0\u1ee1ng duy tr\u00ec g\u01b0\u01a1ng: 0,5\u20131,0 gi\u1edd\/m\u00b2.<br \/>\n&#8211; Chi ph\u00ed v\u1eadt t\u01b0 ti\u00eau hao ch\u00ednh?<br \/>\n  &#8211; Nh\u00e1m m\u1ecbn\/Trizact, h\u1ee3p ch\u1ea5t \u0111\u00e1nh b\u00f3ng, b\u00e1nh v\u1ea3i\/n\u1ec9, ch\u1ea5t t\u1ea9y v\u00e0 n\u01b0\u1edbc RO\/DI.<br \/>\n&#8211; C\u00f3 c\u1ea7n ph\u1ee7 b\u1ea3o v\u1ec7?<br \/>\n  &#8211; V\u1edbi n\u1ed9i th\u1ea5t c\u00f4ng c\u1ed9ng, thang m\u00e1y, tay v\u1ecbn: n\u00ean ph\u1ee7 m\u1ecfng ch\u1ed1ng b\u00e1m b\u1ea9n; v\u1eabn c\u1ea7n v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng dung d\u1ecbch pH trung t\u00ednh.<\/p>\n<h2 id=\"toc-8-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/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, Equipment, and Systems.<br \/>\n&#8211; Nickel Institute \u2013 Care and Cleaning of Stainless Steel; and guidelines on pickling\/passivation.<br \/>\n&#8211; SSINA (Specialty Steel Industry of North America) \u2013 Stainless Steel Fabrication and Finishing Guidelines.<br \/>\n&#8211; 3M Technical Bulletin \u2013 Stainless Steel Finishing with Trizact Abrasives.<br \/>\n&#8211; Outokumpu \u2013 Care and cleaning of stainless steel surfaces.<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ec3 ph\u1ee5c h\u1ed3i inox c\u0169, m\u1edd l\u00ean b\u00f3ng g\u01b0\u01a1ng 8K b\u1ec1n \u0111\u1eb9p, c\u1ed1t l\u00f5i l\u00e0: \u0111\u00e1nh gi\u00e1 \u0111\u00fang hi\u1ec7n tr\u1ea1ng; tu\u00e2n th\u1ee7 ti\u1ebfn tr\u00ecnh m\u00e0i theo c\u1ea5p h\u1ea1t kh\u00f4ng \u201cnh\u1ea3y b\u01b0\u1edbc\u201d; \u0111\u00e1nh b\u00f3ng nhi\u1ec1u c\u1ea5p c\u00f3 ki\u1ec3m so\u00e1t nhi\u1ec7t; th\u1ee5 \u0111\u1ed9ng h\u00f3a sau c\u00f9ng; v\u00e0 nghi\u1ec7m thu b\u1eb1ng ti\u00eau ch\u00ed Ra\/\u0111\u1ed9 b\u00f3ng r\u00f5 r\u00e0ng. L\u00e0m t\u1ed1t c\u00e1c kh\u00e2u n\u00e0y gi\u00fap b\u1ec1 m\u1eb7t kh\u00f4ng ch\u1ec9 s\u00e1ng g\u01b0\u01a1ng m\u00e0 c\u00f2n ch\u1ed1ng \u1ed1, ch\u1ed1ng r\u1ec9 t\u1ed1t h\u01a1n trong v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n quy tr\u00ecnh, ch\u1ecdn v\u1eadt t\u01b0 ph\u00f9 h\u1ee3p cho m\u00e1c th\u00e9p v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 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 chi ti\u1ebft ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K cho inox c\u0169, m\u1edd: quy tr\u00ecnh 8 b\u01b0\u1edbc, c\u1ea5p h\u1ea1t, h\u00f3a ch\u1ea5t th\u1ee5 \u0111\u1ed9ng, ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 an to\u00e0n.<\/p>\n","protected":false},"author":7,"featured_media":1022,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1507","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\/1507","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=1507"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1507\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1022"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}