Super Stainless Hlau thiab npib tsib xee-raws li alloys yog tshwj xeeb ntau yam ntawm stainless hlau.Ua ntej, nws txawv tshuaj los ntawm cov hlau tsis huv zoo tib yam.Nws yog hais txog high alloy stainless hlau uas muaj nickel siab, siab chromium, siab molybdenum.
Raws li microstructure yam ntxwv ntawm stainless hlau cov ntaub ntawv, super stainless hlau muab faib ua super ferritic stainless hlau, super austenitic stainless hlau, super martensitic stainless hlau, super duplex stainless hlau thiab lwm yam.
Super austenitic stainless hlau
Raws li lub hauv paus ntawm austenitic stainless hlau zoo tib yam, los ntawm kev txhim kho cov purity ntawm alloy, nce tus naj npawb ntawm cov ntsiab lus muaj txiaj ntsig, txo cov ntsiab lus ntawm C, tiv thaiv cov nag lossis daus ntawm Cr23C6 los ntawm intergranular corrosion, tau txais cov khoom siv zoo, cov khoom siv thiab cov tshuaj tiv thaiv hauv zos. , hloov Ti ruaj khov stainless hlau.
Super ferritic stainless hlau
Nws txais cov yam ntxwv ntawm lub zog siab, zoo oxidation tsis kam thiab zoo heev kev nyuaj siab corrosion kuj ntawm zoo tib yam ferritic stainless hlau.Nyob rau tib lub sijhawm, nws txhim kho cov kev txwv ntawm ferrite stainless hlau nyob rau hauv lub vuam lub xeev ntawm brittle hloov, rhiab rau intergranular corrosion thiab tsis tshua muaj toughness.Ultra-ferritic stainless hlau nrog siab Cr, Mo thiab ultra qis C thiab N tuaj yeem tau los ntawm kev siv tshuab ua kom zoo, txo cov ntsiab lus ntawm C thiab N, ntxiv stabilizing thiab vuam hlau toughening ntsiab.Daim ntawv thov ntawm ferritic stainless hlau hauv corrosion kuj thiab chloride corrosion kuj tau nkag mus rau theem tshiab.
Super duplex stainless hlau
Cov hlau tau tsim nyob rau xyoo 1980s.Cov hom tseem ceeb yog SAF2507, UR52N, Zeron100, thiab lwm yam, uas yog cov ntsiab lus C tsawg, siab Mo cov ntsiab lus thiab siab N cov ntsiab lus.Cov ntsiab lus ferritic theem nyob rau hauv steel account rau 40% ~ 45%., nrog zoo heev corrosion kuj.
Super martensitic stainless hlau
Nws yog stainless hlau hardenable nrog siab hardness, lub zog thiab hnav tsis kam, tab sis tsis zoo toughness thiab weldability.Ordinary martensitic stainless hlau tsis muaj ductility txaus, yog rhiab heev rau kev ntxhov siab thaum deformed, thiab nyuaj rau kev ua haujlwm txias.Los ntawm kev txo cov ntsiab lus carbon thiab nce cov ntsiab lus nickel, super martensitic stainless hlau tuaj yeem tau.Nyob rau hauv xyoo tas los no, lub teb chaws tau nqis peev nyiaj ntau hauv kev txhim kho cov pa roj carbon tsawg thiab tsawg nitrogen super martensitic steel, thiab tsim ib pawg ntawm super martensitic steel rau ntau lub hom phiaj.Super martensitic steel tau siv dav hauv kev siv roj thiab roj, khaws cia thiab thauj khoom, hydropower, tshuaj lom neeg kev lag luam, cov khoom siv kub kub thiab lwm yam kev lag luam.
Functional stainless hlau
Nrog rau kev hloov pauv ntawm kev xav tau ntawm kev lag luam, ntau yam stainless hlau nrog kev siv tshwj xeeb thiab kev ua haujlwm tshwj xeeb tseem tshwm sim.Xws li cov khoom siv kho mob tshiab nickel dawb austenitic stainless hlau yog Cr-Ni austenitic stainless hlau, muaj biocompatibility zoo, muaj Ni 13% ~ 15%.Nickel yog ib yam ntawm sensitizing yam, uas yog teratogenic thiab carcinogenic rau kab mob.Kev siv ntev ntev ntawm kev cog cov nickel-muaj stainless hlau maj mam rhuav tshem thiab tso Ni ions.Thaum Ni ions enriched nyob rau hauv cov ntaub so ntswg ze ntawm implantation, cov tshuaj lom neeg muaj peev xwm induced thiab phiv xws li kev puas tsuaj ntawm tes thiab o tuaj yeem tshwm sim.Cr-Mn-N kev kho mob npib tsib xee-dawb austenitic stainless hlau tsim los ntawm Lub Tsev Haujlwm ntawm Kev Tshawb Fawb Hlau, Suav Academy ntawm Kev Tshawb Fawb tau raug sim rau biocompatibility, thiab nws cov kev ua tau zoo dua li ntawm Cr-Ni austenitic stainless hlau hauv kev siv tshuaj kho mob.Lwm qhov piv txwv yog antibacterial stainless hlau.Nrog rau kev txhim kho ntawm tib neeg txoj kev ua neej nyob, tib neeg tau them nyiaj ntau dua rau ib puag ncig thiab lawv tus kheej kev noj qab haus huv, uas txhawb kev tshawb fawb thiab tsim cov khoom siv tshuaj tua kab mob.Txij li xyoo 1980, cov teb chaws tsim los sawv cev los ntawm Nyij Pooj tau pib kawm thiab siv cov khoom siv tshuaj tua kab mob hauv cov khoom siv hauv tsev, ntim khoom noj, khoom siv niaj hnub, khoom siv da dej thiab lwm yam.Nissin Steel thiab Kawasaki Steel tsim cov tshuaj tua kab mob stainless hlau uas muaj cu thiab ag, raws li.Copper antibacterial stainless hlau yog ntxiv rau hauv stainless hlau 0.5% ~ 1.0% tooj liab, tom qab kev kho cua sov tshwj xeeb, kom cov hlau tsis huv los ntawm qhov chaw mus rau sab hauv ntawm cov khaub ncaws.Dispersing ε-Cu precipitates ua lub luag haujlwm tiv thaiv kab mob.Cov tooj liab no muaj cov tshuaj tua kab mob stainless hlau yog tsim rau ntau yam khoom xws li cov khoom siv hluav taws xob zoo, nrog rau lwm cov khoom uas muaj cov kev xav tau siab rau kev ua cov khoom thiab cov tshuaj tua kab mob.
Post lub sij hawm: Feb-16-2023