Trong m\u1ecdi so s\u00e1nh v\u1eadt li\u1ec7u kim lo\u1ea1i, Inox (th\u00e9p kh\u00f4ng g\u1ec9) th\u01b0\u1eddng l\u00e0 \u201cchu\u1ea9n m\u1eb7c \u0111\u1ecbnh\u201d. Nh\u01b0ng khi b\u01b0\u1edbc v\u00e0o c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt cao \u2013 n\u01a1i tr\u1ecdng l\u01b0\u1ee3ng, \u0103n m\u00f2n clorua, \u0111\u1ed9 tin c\u1eady v\u00e0 ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u tr\u1edf th\u00e0nh ranh gi\u1edbi \u2013 Titan xu\u1ea5t hi\u1ec7n nh\u01b0 m\u1ed9t l\u1ef1a ch\u1ecdn kh\u00e1c h\u1eb3n. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o c\u00e2u h\u1ecfi: Khi n\u00e0o c\u1ea7n \u0111\u1ebfn Titan, v\u00e0 Titan kh\u00e1c g\u00ec Inox trong th\u1ef1c t\u1ebf v\u1eadn h\u00e0nh \u1edf Vi\u1ec7t Nam?<\/p>\n
Ch\u1ecdn Titan khi c\u1ea7n t\u1ec9 s\u1ed1 b\u1ec1n\/tr\u1ecdng l\u01b0\u1ee3ng cao, ch\u1ed1ng \u0103n m\u00f2n clorua tuy\u1ec7t \u0111\u1ed1i, y sinh v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i; Inox ph\u00f9 h\u1ee3p h\u01a1n cho nhi\u1ec7t cao, chi ph\u00ed v\u00e0 gia c\u00f4ng.<\/p>\n","protected":false},"author":7,"featured_media":1026,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1170","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\/1170","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=1170"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1170\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1026"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n– \u01afu ti\u00ean Titan n\u1ebfu:
\n – C\u1ea7n t\u1ec9 s\u1ed1 b\u1ec1n\/tr\u1ecdng l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i (aerospace, \u0111ua xe, UAV, thi\u1ebft b\u1ecb n\u00e2ng di \u0111\u1ed9ng).
\n – M\u00f4i tr\u01b0\u1eddng clorua n\u1eb7ng (n\u01b0\u1edbc bi\u1ec3n, n\u01b0\u1edbc mu\u1ed1i, hypochlorite, chlorine dioxide) \u0111\u00f2i h\u1ecfi tu\u1ed5i th\u1ecd \u201cg\u1ea7n nh\u01b0 mi\u1ec5n b\u1ea3o tr\u00ec\u201d.
\n – \u1ee8ng d\u1ee5ng y sinh\/ti\u1ebfp x\u00fac c\u01a1 th\u1ec3 (implant, d\u1ee5ng c\u1ee5 y t\u1ebf) y\u00eau c\u1ea7u t\u00ednh tr\u01a1 sinh h\u1ecdc cao.
\n – H\u1ec7 th\u1ed1ng quan tr\u1ecdng, chi ph\u00ed d\u1eebng m\u00e1y cao (b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t n\u01b0\u1edbc bi\u1ec3n, chlor-alkali, kh\u1eed m\u1eb7n RO).
\n– Gi\u1eef Inox n\u1ebfu:
\n – Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c cao >400\u00b0C (l\u00f2, \u1ed1ng kh\u00f3i, gia nhi\u1ec7t \u2013 \u01b0u ti\u00ean 310\/309, 316).
\n – D\u1ef1 \u00e1n nh\u1ea1y chi ph\u00ed, kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng ph\u1ea3i y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh.
\n – C\u1ea7n gia c\u00f4ng, h\u00e0n nhanh, chu\u1ed7i cung \u1ee9ng r\u1ed9ng v\u00e0 linh ho\u1ea1t.
\n – M\u00e0i m\u00f2n\/ma s\u00e1t cao (Titan d\u1ec5 galling, c\u1ea7n ph\u1ee7\/c\u1eb7p v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p).<\/p>\n
\n– Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang:
\n – Titan: \u2248 4,5 g\/cm\u00b3
\n – Inox austenitic (304\/316): \u2248 7,9\u20138,0 g\/cm\u00b3
\n– \u0110\u1ed9 b\u1ec1n k\u00e9o \u0111i\u1ec3n h\u00ecnh:
\n – Titan Gr.5 (Ti-6Al-4V): UTS ~ 900\u20131000 MPa, gi\u1edbi h\u1ea1n ch\u1ea3y ~ 800\u2013880 MPa
\n – Titan Gr.2 (th\u01b0\u01a1ng ph\u1ea9m tinh khi\u1ebft): UTS ~ 345\u2013485 MPa
\n – Inox 304\/316: UTS ~ 515\u2013620 MPa, gi\u1edbi h\u1ea1n ch\u1ea3y ~ 205\u2013240 MPa
\n – Inox 17-4PH (t\u00f4i ram H900): UTS ~ 1100\u20131310 MPa, ch\u1ea3y ~ 1000+ MPa
\n – Duplex 2205: UTS ~ 620\u2013880 MPa, ch\u1ea3y ~ 450\u2013620 MPa
\n– H\u00e0m \u00fd:
\n – B\u1ec1n ri\u00eang (UTS\/\u03c1): Titan (\u0111\u1eb7c bi\u1ec7t Gr.5) v\u01b0\u1ee3t Inox 304\/316 r\u00f5 r\u1ec7t \u2192 gi\u1ea3m 30\u201345% kh\u1ed1i l\u01b0\u1ee3ng \u1edf c\u00f9ng \u0111\u1ed9 b\u1ec1n.
\n – M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i (E): Titan ~ 105\u2013116 GPa; Inox ~ 190\u2013210 GPa \u2192 Titan \u201cm\u1ec1m\u201d h\u01a1n v\u1ec1 \u0111\u1ed9 c\u1ee9ng v\u1eefng, d\u1ec5 rung\/l\u1ec7ch n\u1ebfu kh\u00f4ng t\u0103ng ti\u1ebft di\u1ec7n.<\/p>\n
\n– Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c:
\n – Titan \u0111\u1ea3m b\u1ea3o c\u01a1 t\u00ednh t\u1ed1t t\u1edbi ~300\u00b0C (tr\u00ean n\u1eefa d\u1ec5 suy gi\u1ea3m, r\u1ee7i ro oxy h\u00f3a\/gi\u00f2n).
\n – Inox 304\/316 d\u00f9ng t\u1ed1t t\u1edbi 500\u2013600\u00b0C; m\u00e1c ch\u1ecbu nhi\u1ec7t 310\/309 c\u00f3 th\u1ec3 cao h\u01a1n (oxy h\u00f3a kh\u00f4).
\n– D\u1eabn nhi\u1ec7t:
\n – Titan ~ 7 W\/m\u00b7K (th\u1ea5p) \u2192 ph\u00e2n t\u00e1n nhi\u1ec7t k\u00e9m khi gia c\u00f4ng; thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t c\u1ea7n b\u00f9 di\u1ec7n t\u00edch.
\n – Inox 304\/316 ~ 14\u201316 W\/m\u00b7K (v\u1eabn th\u1ea5p so v\u1edbi \u0111\u1ed3ng\/nh\u00f4m nh\u01b0ng g\u1ea5p ~2 l\u1ea7n Titan).
\n– H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t:
\n – Titan ~ 8,6\u20139,5 \u00b5m\/m\u00b7K; Inox 304\/316 ~ 16\u201317 \u00b5m\/m\u00b7K \u2192 Titan gi\u00e3n n\u1edf th\u1ea5p h\u01a1n, l\u1ee3i th\u1ebf cho l\u1eafp gh\u00e9p ch\u00ednh x\u00e1c.<\/p>\n
\n– Titan:
\n – Th\u1ee5 \u0111\u1ed9ng h\u00f3a TiO2 b\u1ec1n v\u1eefng, h\u1ea7u nh\u01b0 \u201cmi\u1ec5n nhi\u1ec5m\u201d pitting\/crevice trong n\u01b0\u1edbc bi\u1ec3n, NaCl, hypochlorite, \u01b0\u1edbt chlorine.
\n – L\u01b0u \u00fd c\u1ea7n oxy \u0111\u1ec3 duy tr\u00ec m\u00e0ng th\u1ee5 \u0111\u1ed9ng; m\u00f4i tr\u01b0\u1eddng ho\u00e0n to\u00e0n kh\u1eed (acid m\u1ea1nh kh\u00f4ng c\u00f3 oxy) c\u00f3 th\u1ec3 t\u1ea5n c\u00f4ng.
\n – Kh\u00f4ng b\u1ec1n v\u1edbi HF, acid ch\u1ee9a fluoride; th\u1eadn tr\u1ecdng v\u1edbi H2SO4\/HCl n\u00f3ng, \u0111\u1eadm \u0111\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n kh\u1eed.
\n– Inox:
\n – 304 d\u1ec5 pitting\/crevice trong clorua; 316\/316L c\u1ea3i thi\u1ec7n nh\u1edd Mo nh\u01b0ng v\u1eabn gi\u1edbi h\u1ea1n (\u0111\u1eb7c bi\u1ec7t >50\u201360\u00b0C).
\n – Duplex 2205\/si\u00eau duplex t\u0103ng PREN ch\u1ed1ng pitting; tuy nhi\u00ean l\u1eafp gh\u00e9p khe h\u1edf v\u1eabn l\u00e0 \u0111i\u1ec3m y\u1ebfu.
\n– Th\u1ef1c t\u1ebf:
\n – N\u01b0\u1edbc bi\u1ec3n Vi\u1ec7t Nam: Titan cho t\u1ed1c \u0111\u1ed9 \u0103n m\u00f2n g\u1ea7n nh\u01b0 0 mm\/n\u0103m, tu\u1ed5i th\u1ecd >20 n\u0103m \u1edf b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t, \u1ed1ng ng\u01b0ng. 316 th\u01b0\u1eddng pitting\/crevice trong 6\u201324 th\u00e1ng n\u1ebfu khe h\u1edf\/\u0111\u1ecdng mu\u1ed1i.<\/p>\n
\n– Gia c\u00f4ng c\u01a1:
\n – Titan: d\u1eabn nhi\u1ec7t th\u1ea5p \u2192 v\u00f9ng c\u1eaft n\u00f3ng, l\u1eb9m dao; c\u1ea7n t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p, t\u01b0\u1edbi ngu\u1ed9i m\u1ea1nh, dao s\u1eafc PVD TiAlN, chi\u1ebfn l\u01b0\u1ee3c trochoidal.
\n – Inox: c\u0169ng kh\u00f3 c\u1eaft h\u01a1n th\u00e9p carbon nh\u01b0ng \u201cd\u1ec5 th\u1edf\u201d h\u01a1n Titan; ngu\u1ed3n gia c\u00f4ng ph\u1ed5 bi\u1ebfn.
\n– H\u00e0n:
\n – Titan c\u1ea7n che ph\u1ee7 kh\u00ed tr\u01a1 tuy\u1ec7t \u0111\u1ed1i (argon \u226599,99%), back-purge k\u1ef9, s\u1ea1ch b\u1ec1 m\u1eb7t; nhi\u1ec5m O\/N\/H \u2192 gi\u00f2n.
\n – Inox 304\/316 h\u00e0n MIG\/TIG th\u00f4ng d\u1ee5ng; ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng v\u00e0 \u0103n m\u00f2n khe l\u00e0 ch\u00ednh.
\n– Ma s\u00e1t\/m\u00e0i m\u00f2n:
\n – Titan d\u1ec5 galling, k\u00e9m ch\u1ed1ng m\u00e0i m\u00f2n d\u00ednh \u2192 \u01b0u ti\u00ean ph\u1ee7 (nitriding, DLC) ho\u1eb7c c\u1eb7p v\u1edbi v\u1eadt li\u1ec7u kh\u00e1c; b\u00f4i tr\u01a1n b\u1eaft bu\u1ed9c cho bu l\u00f4ng.
\n – Inox c\u0169ng c\u00f3 xu h\u01b0\u1edbng galling nh\u01b0ng nh\u1eb9 h\u01a1n v\u00e0 d\u1ec5 x\u1eed l\u00fd v\u1edbi m\u1ea1\/lubricant.<\/p>\n
\n– \u0110i\u1ec7n: c\u1ea3 hai d\u1eabn \u0111i\u1ec7n k\u00e9m; Titan c\u00f2n k\u00e9m h\u01a1n.
\n– T\u1eeb t\u00ednh: Titan kh\u00f4ng t\u1eeb; Inox austenitic (304\/316) g\u1ea7n nh\u01b0 kh\u00f4ng t\u1eeb, nh\u01b0ng c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb nh\u1eb9 sau gia c\u00f4ng ngu\u1ed9i.
\n– Y sinh: Titan (Gr.2, Gr.23 ELI) tr\u01a1 sinh h\u1ecdc v\u01b0\u1ee3t tr\u1ed9i cho implant l\u00e2u d\u00e0i; 316L d\u00f9ng cho d\u1ee5ng c\u1ee5\/thi\u1ebft b\u1ecb nh\u01b0ng c\u00f3 r\u1ee7i ro ion Ni.<\/p>\n
\n– Nhi\u1ec7t \u2013 l\u1ea1nh n\u01b0\u1edbc bi\u1ec3n:
\n – B\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t \u1ed1ng ch\u00f9m\/plate-and-frame c\u1ea5p n\u01b0\u1edbc bi\u1ec3n, d\u00e0n ng\u01b0ng m\u00e1y n\u00e9n NH3: 316L t\u1eebng h\u1ecfng do pitting\/crevice sau 12\u201318 th\u00e1ng; chuy\u1ec3n sang \u1ed1ng Titan Gr.2 v\u1eadn h\u00e0nh >10 n\u0103m kh\u00f4ng s\u1eeda l\u1edbn.
\n– Kh\u1eed m\u1eb7n RO v\u00e0 chlor-alkali:
\n – N\u01b0\u1edbc mu\u1ed1i\/hypochlorite \u0103n m\u00f2n m\u1ea1nh v\u1eadt li\u1ec7u Mo; Titan Gr.2 cho chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p nh\u1ea5t d\u00f9 \u0111\u1ea7u t\u01b0 cao.
\n– Marine\/offshore:
\n – Bu l\u00f4ng, n\u1eb9p, tr\u1ee5c b\u01a1m Titan gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng 40\u201350%, kh\u00f4ng r\u1ec9 s\u00e9t; ch\u00fa \u00fd c\u00e1ch \u0111i\u1ec7n galvanic khi gh\u00e9p v\u1edbi nh\u00f4m\/Th\u00e9p.
\n– H\u00e0ng kh\u00f4ng \u2013 \u0111ua xe \u2013 xe \u0111\u1ea1p:
\n – \u1ed0ng, bu l\u00f4ng, c\u1ed5 phu\u1ed9c Titan: gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng, gi\u1eef \u0111\u1ed9 b\u1ec1n cao; c\u1ea7n thi\u1ebft k\u1ebf b\u00f9 \u0111\u1ed9 c\u1ee9ng \u0111\u1ec3 h\u1ea1n ch\u1ebf rung.
\n– Y t\u1ebf:
\n – Implant, v\u00edt x\u01b0\u01a1ng, tr\u1ee5 r\u0103ng: Titan Gr.23 ELI l\u00e0 ti\u00eau chu\u1ea9n; Inox 316L cho d\u1ee5ng c\u1ee5, khay, m\u00e1y m\u00f3c.<\/p>\n
\n– T\u01b0\u01a1ng quan chi ph\u00ed (tham kh\u1ea3o, theo v\u1eadt li\u1ec7u th\u00f4): 304 = 1x; 316L \u2248 1,4\u20131,7x; Duplex 2205 \u2248 1,8\u20132,3x; Titan Gr.2 \u2248 6\u20138x; Titan Gr.5 \u2248 8\u201312x.
\n– Ngu\u1ed3n cung:
\n – Inox 201\/304\/316L: c\u00f3 s\u1eb5n d\u1ea1ng t\u1ea5m, \u1ed1ng, c\u00e2y t\u1ea1i H\u00e0 N\u1ed9i\/H\u1ea3i Ph\u00f2ng\/TP.HCM, giao nhanh 1\u20133 ng\u00e0y.
\n – Duplex\/17-4PH: s\u1eb5n \u1edf m\u1ee9c h\u1ea1n ch\u1ebf, c\u00f3 th\u1ec3 ph\u1ea3i \u0111\u1eb7t 5\u201310 ng\u00e0y.
\n – Titan Gr.2\/Gr.5: th\u01b0\u1eddng \u0111\u1eb7t h\u00e0ng theo quy c\u00e1ch, lead time 2\u20136 tu\u1ea7n; c\u1ea7n ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 Mill Test Certificate (ASTM\/EN).
\n– Chi ph\u00ed v\u00f2ng \u0111\u1eddi:
\n – M\u00f4i tr\u01b0\u1eddng clorua: Titan th\u01b0\u1eddng th\u1eafng v\u1ec1 t\u1ed5ng chi ph\u00ed sau 2\u20135 n\u0103m nh\u1edd lo\u1ea1i b\u1ecf thay th\u1ebf\/gi\u00e1n \u0111o\u1ea1n v\u1eadn h\u00e0nh.<\/p>\n
\n1) Tr\u1ecdng l\u01b0\u1ee3ng c\u00f3 l\u00e0 KPI? N\u1ebfu c\u1ea7n gi\u1ea3m >25% kh\u1ed1i l\u01b0\u1ee3ng m\u00e0 v\u1eabn gi\u1eef b\u1ec1n, \u01b0u ti\u00ean Titan Gr.5.
\n2) Clorua\/n\u01b0\u1edbc bi\u1ec3n\/hypochlorite c\u00f3 hi\u1ec7n di\u1ec7n? N\u1ebfu c\u00f3 v\u00e0 nhi\u1ec7t \u0111\u1ed9 >40\u201350\u00b0C, Titan l\u00e0 \u1ee9ng vi\u00ean s\u1ed1 1.
\n3) Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c >400\u00b0C? N\u1ebfu c\u00f3, nghi\u00eang v\u1ec1 Inox ch\u1ecbu nhi\u1ec7t (309\/310).
\n4) L\u1eafp gh\u00e9p c\u00f3 khe h\u1edf\/\u0111\u1ecdng mu\u1ed1i? Khe t\u0103ng r\u1ee7i ro crevice cho Inox; Titan kh\u00e1ng t\u1ed1t.
\n5) Y sinh\/ti\u1ebfp x\u00fac c\u01a1 th\u1ec3? Titan (Gr.2\/Gr.23) l\u00e0 ti\u00eau chu\u1ea9n.
\n6) C\u00f3 s\u1eb5n n\u0103ng l\u1ef1c h\u00e0n\/gi\u00e1m s\u00e1t kh\u00ed tr\u01a1? N\u1ebfu kh\u00f4ng, chi ph\u00ed ch\u1ebf t\u1ea1o Titan s\u1ebd \u0111\u1ed9i cao v\u00e0 r\u1ee7i ro ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n
\n– Titan:
\n – Gr.2 (CP-Ti): ch\u1ed1ng \u0103n m\u00f2n c\u1ef1c t\u1ed1t, d\u1ec5 h\u00e0n; d\u00f9ng \u1ed1ng\/plate trao \u0111\u1ed5i nhi\u1ec7t, b\u1ed3n, \u1ed1ng d\u1eabn n\u01b0\u1edbc bi\u1ec3n.
\n – Gr.5 (Ti-6Al-4V): b\u1ec1n cao, k\u1ebft c\u1ea5u nh\u1eb9, c\u01a1 kh\u00ed ch\u00ednh x\u00e1c.
\n – Ti\u00eau chu\u1ea9n: ASTM B265 (t\u1ea5m), ASTM B348 (thanh), ASTM B338 (\u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t), AWS A5.16 (que d\u00e2y h\u00e0n ERTi-2\/ERTi-5).
\n– Inox:
\n – 304\/304L: thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m, ki\u1ebfn tr\u00fac, m\u00f4i tr\u01b0\u1eddng \u00edt clorua.
\n – 316\/316L: h\u00f3a ch\u1ea5t nh\u1eb9, ven bi\u1ec3n, CIP; ch\u00fa \u00fd pitting \u1edf n\u01b0\u1edbc bi\u1ec3n n\u00f3ng.
\n – 17-4PH: tr\u1ee5c, khu\u00f4n, chi ti\u1ebft ch\u1ecbu l\u1ef1c cao.
\n – Duplex 2205: ch\u1ed1ng clorua t\u1ed1t h\u01a1n 316, nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c v\u1eeba ph\u1ea3i.
\n – Ti\u00eau chu\u1ea9n: ASTM A240 (t\u1ea5m), ASTM A312 (\u1ed1ng), ASTM A276 (thanh), ASTM A182 (r\u00e8n).<\/p>\n
\n– Galvanic corrosion:
\n – Titan l\u00e0 kim lo\u1ea1i \u201cqu\u00fd\u201d \u2192 khi gh\u00e9p v\u1edbi th\u00e9p\/aluminium trong n\u01b0\u1edbc bi\u1ec3n, ph\u1ea7n kia d\u1ec5 b\u1ecb \u0103n m\u00f2n. D\u00f9ng \u0111\u1ec7m c\u00e1ch \u0111i\u1ec7n (PTFE\/FRP), s\u01a1n c\u00e1ch ly, bu l\u00f4ng\/\u0111ai \u1ed1c \u0111\u1ed3ng v\u1eadt li\u1ec7u, ho\u1eb7c anode hy sinh.
\n– Bu l\u00f4ng Titan:
\n – B\u00f4i tr\u01a1n ren (MoS2\/Ptfe paste), gi\u1edbi h\u1ea1n m\u00f4-men theo nh\u00e0 s\u1ea3n xu\u1ea5t; tr\u00e1nh c\u1eb7p Titan\u2013Titan kh\u00f4.
\n– H\u00e0n Titan:
\n – L\u00e0m s\u1ea1ch c\u01a1 h\u1ecdc + h\u00f3a h\u1ecdc, h\u1ea1n ch\u1ebf ch\u1ea1m tay; t\u1ed1c \u0111\u1ed9 kh\u00ed tr\u01a1 cao, m\u00e0n che \u0111u\u00f4i h\u1ed3 quang (trailing shield); m\u00e0u m\u1ed1i h\u00e0n ph\u1ea3i b\u1ea1c r\u01a1m \u2013 xanh nh\u1ea1t, kh\u00f4ng x\u00e1m\/t\u00edm \u0111en.
\n– Gia c\u00f4ng:
\n – D\u00f9ng dao HSS-Co ho\u1eb7c carbide ph\u1ee7, t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p, l\u01b0\u1ee3ng \u0103n dao cao v\u1eeba \u0111\u1ee7; l\u00e0m m\u00e1t \u00e1p l\u1ef1c cao.
\n– K\u1ebft c\u1ea5u Titan:
\n – Do E th\u1ea5p, t\u0103ng momen qu\u00e1n t\u00ednh ti\u1ebft di\u1ec7n (d\u1ea1ng \u1ed1ng) \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng v\u1eefng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng Inox.<\/p>\n
\n– M\u00f4i tr\u01b0\u1eddng c\u00f3 fluoride\/HF ho\u1eb7c t\u1ea9y r\u1eeda ch\u1ee9a F\u2212 (titan b\u1ecb t\u1ea5n c\u00f4ng m\u1ea1nh).
\n– Acid kh\u1eed m\u1ea1nh, nhi\u1ec7t cao, thi\u1ebfu oxy (HCl\/H2SO4 \u0111\u1eadm \u0111\u1eb7c, n\u00f3ng) n\u1ebfu kh\u00f4ng ki\u1ec3m so\u00e1t oxy h\u00f3a.
\n– \u1ee8ng d\u1ee5ng ch\u1ecbu m\u00e0i m\u00f2n tr\u01b0\u1ee3t n\u1eb7ng m\u00e0 kh\u00f4ng c\u00f3 ph\u1ee7\/lubricant.
\n– D\u1ef1 \u00e1n c\u1ea7n giao g\u1ea5p s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, quy c\u00e1ch \u0111\u1eb7c th\u00f9 nh\u01b0ng chu\u1ed7i cung \u1ee9ng Titan kh\u00f4ng k\u1ecbp \u0111\u00e1p \u1ee9ng.<\/p>\n
\n– B\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t n\u01b0\u1edbc bi\u1ec3n:
\n – Inox 316L: CAPEX th\u1ea5p, r\u1ee7i ro pitting\/crevice, chi ph\u00ed b\u1ea3o tr\u00ec cao.
\n – Titan Gr.2: CAPEX cao, g\u1ea7n nh\u01b0 mi\u1ec5n b\u1ea3o tr\u00ec, LCC th\u1ea5p nh\u1ea5t >5 n\u0103m.
\n– K\u1ebft c\u1ea5u nh\u1eb9 (gi\u00e1 \u0111\u1ee1 UAV, ph\u1ee5 t\u00f9ng \u0111ua):
\n – 17-4PH\/Inox 304: r\u1ebb h\u01a1n, n\u1eb7ng, d\u1ec5 gia c\u00f4ng.
\n – Titan Gr.5: nh\u1eb9 ~40%, b\u1ec1n cao, c\u1ea7n k\u1ef9 thu\u1eadt gia c\u00f4ng chuy\u00ean.
\n– Thi\u1ebft b\u1ecb y t\u1ebf:
\n – 316L: d\u1ee5ng c\u1ee5, khay.
\n – Titan Gr.23: implant, v\u00edt x\u01b0\u01a1ng l\u00e2u d\u00e0i.<\/p>\n
\nTitan kh\u00f4ng ph\u1ea3i \u201cInox \u0111\u1eaft ti\u1ec1n\u201d \u2013 \u0111\u00f3 l\u00e0 m\u1ed9t h\u1ecd v\u1eadt li\u1ec7u kh\u00e1c bi\u1ec7t, t\u1ed1i \u01b0u khi b\u00e0i to\u00e1n \u0111\u1eb7t n\u1eb7ng b\u1ec1n ri\u00eang, ch\u1ed1ng \u0103n m\u00f2n clorua tuy\u1ec7t \u0111\u1ed1i, y sinh v\u00e0 \u0111\u1ed9 tin c\u1eady v\u00f2ng \u0111\u1eddi. Trong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc bi\u1ec3n\/hypochlorite ho\u1eb7c \u1ee9ng d\u1ee5ng tr\u1ecdng l\u01b0\u1ee3ng nh\u1ea1y, Titan th\u01b0\u1eddng cho t\u1ed5ng chi ph\u00ed th\u1ea5p h\u01a1n d\u00f9 \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao. Ng\u01b0\u1ee3c l\u1ea1i, v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, y\u00eau c\u1ea7u gia c\u00f4ng nhanh, v\u00e0 ng\u00e2n s\u00e1ch h\u1ea1n ch\u1ebf, Inox (304\/316, 17-4PH, Duplex) v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn kinh t\u1ebf v\u00e0 \u0111\u1ee7 t\u1ed1t. Ch\u00eca kh\u00f3a n\u1eb1m \u1edf vi\u1ec7c \u0111\u1ecbnh ngh\u0129a \u0111\u00fang m\u00f4i tr\u01b0\u1eddng, t\u1ea3i tr\u1ecdng, nhi\u1ec7t \u0111\u1ed9 v\u00e0 r\u1ee7i ro d\u1eebng m\u00e1y: n\u1ebfu ba y\u1ebfu t\u1ed1 \u0111\u1ea7u nghi\u00eang v\u1ec1 clorua \u2013 nh\u1eb9 \u2013 \u0111\u1ed9 tin c\u1eady, h\u00e3y ch\u1ecdn Titan; n\u1ebfu nghi\u00eang v\u1ec1 nhi\u1ec7t \u2013 chi ph\u00ed \u2013 t\u1ed1c \u0111\u1ed9 ch\u1ebf t\u1ea1o, h\u00e3y ch\u1ecdn Inox.<\/p>\n","protected":false},"excerpt":{"rendered":"