1. Cov khoom tseem ceeb ntawm stainless hlau
Cov khoom tseem ceeb ntawm cov hlau tsis muaj hlau yog hlau, chromium, npib tsib xee, thiab ib qho me me ntawm carbon thiab lwm yam khoom
Thib ob, kev faib tawm ntawm cov hlau tsis muaj steel
Raws li cov ntaub ntawv lub koom haum qauv
Austenitic stainless hlau
Martensitic stainless hlau
Ferritic stainless hlau
Austenitic-ferritic duplex stainless hlau
Precipitation hardening stainless hlau
Feem ntau yog austenitic stainless hlau, cov zis ntawm austenitic stainless hlau suav txog li 75% mus rau 80% ntawm tag nrho cov khoom ntawm stainless hlau.
Peb, austenitic stainless hlau
Cov classic thawj tiam austenitic stainless hlau yog hu ua 18-8 steel (uas yog, peb hom 304 stainless hlau, 18-8 txhais tau hais tias cov ntsiab lus chromium yog li 18%, thiab npib tsib xee 8% ~ 10%), uas yog Feem ntau cov neeg sawv cev steel, lwm yam austenites yog tag nrho cov tsim nyob rau hauv lub hauv paus ntawm 18-8.
Cov yam ntxwv ntawm austenitic stainless hlau yog:
2XX series (chromium-nickel-manganese austenitic stainless hlau, feem ntau 201, 202)
3XX series (chromium-nickel austenitic stainless hlau, feem ntau 304, 316)
2XX series pib los ntawm Tsov Rog Ntiaj Teb Zaum Ob.Kev siv cov npib tsib xee ua cov khoom siv tswv yim yog tswj nruj heev hauv ntau lub teb chaws (nickel yog kim heev).Txhawm rau daws qhov teeb meem ntawm qhov tsis txaus ntawm cov khoom siv npib tsib xee, Tebchaws Asmeskas thawj zaug tsim cov khoom siv stainless hlau 2XX series nrog cov ntsiab lus tsis tshua muaj nickel.Raws li qhov xwm txheej ceev thiab ntxiv rau 3XX series, 2XX series tau tsim los ntawm kev ntxiv manganese thiab (lossis) nitrogen rau cov hlau los hloov cov hlau zoo nkauj npib tsib xee.2XX series yog qis dua rau 3XX series hauv kev tiv thaiv corrosion, tab sis ob qho tib si tsis yog hlau nplaum, yog li hauv tsev Muaj ntau tus tub lag luam tsis zoo ua txuj ua 304 stainless hlau nrog qis dua 201 stainless hlau, tab sis kev noj ntau dhau ntawm manganese hauv tib neeg lub cev yuav ua rau muaj kev puas tsuaj. lub paj hlwb, yog li 2XX series tsis tuaj yeem siv rau cov tais diav.
Plaub, qhov txawv ntawm 304, SUS304, 06Cr19Ni10, S30408 yog dab tsi
Cov 18-8 austenitic stainless hlau no hu ua txawv nyob rau hauv ntau lub teb chaws, 304 (American standard, uas yog lub American lub npe), SUS304 (Japanese standard, uas yog lub npe Japanese), 06Cr19Ni10 (Suav txheem, uas yog lub npe Suav) , S30408 (S30408 yog UNS tus naj npawb ntawm 06Cr19Ni10, thiab Tebchaws Meskas 304 kuj muaj tus lej UNS ntawm S30400).Cov qauv sib txawv hauv tebchaws yuav txawv me ntsis, tab sis thaum kawg, cov no feem ntau tuaj yeem suav tias yog cov khoom siv tib yam.
Tsib, 304 stainless hlau lossis 316 stainless hlau uas zoo dua
Peb feem ntau hais tias 316 stainless hlau hais txog 316L, "L" yog lub ntsiab lus ntawm "LOW" hauv lus Askiv, uas txhais tau tias "tsawg carbon".Piv nrog rau 304, 316 stainless hlau tau nce cov ntsiab lus ntawm npib tsib xee, txo cov ntsiab lus ntawm cov pa roj carbon, thiab tshiab molybdenum ntxiv (tsis muaj molybdenum hauv 304).Qhov sib ntxiv ntawm npib tsib xee thiab molybdenum zoo heev txhim kho nws cov corrosion kuj thiab kub ua hauj.Tau kawg, tus nqi kuj siab dua.316 feem ntau yog siv rau hauv marine, high-temperature distillation, cov cuab yeej kho mob tshwj xeeb thiab lwm yam khoom siv uas xav tau kev tiv thaiv corrosion thiab kub tsis kam, yog li 304 txaus rau cov khoom noj sib cuag.
Rau, dab tsi yog zaub mov qib stainless hlau
Khoom noj khoom haus-qib stainless hlau yog hais txog stainless hlau uas ua tau raws li lub teb chaws yuav tsum tus qauv GB4806.9-2016 "National Food Safety Standard thiab hlau cov ntaub ntawv thiab cov khoom rau zaub mov tiv tauj".
Nws tuaj yeem pom los ntawm cov saum toj no hais tias lub teb chaws muaj ob lub ntsiab lus tseem ceeb rau cov khoom noj khoom haus-qib stainless hlau: ib qho yog cov khoom siv raw yuav tsum tau ua raws li qhov yuav tsum tau ua, thiab lwm qhov yog tias nag lossis daus ntawm cov hlau hnyav hauv cov khoom siv raw yuav tsum tau raws li cov khoom noj. qauv.
Ntau tus phooj ywg yuav nug seb 304 stainless hlau puas yog zaub mov qib stainless hlau?
Cov lus teb yog: 304 stainless hlau yog "tsis sib npaug" cov zaub mov qib stainless hlau.304 yog tus qauv Asmeskas.Lawm, nws tsis yooj yim sua rau Suav tus qauv siv lo lus "304" raws li tus qauv Asmeskas, tab sis feem ntau hais lus, "tshwj xeeb kho 304 stainless hlau" yog zaub mov qib stainless hlau, zoo tib yam 304 stainless hlau tsis yog zaub mov qib stainless hlau, 304 stainless hlau muaj ntau yam kev lag luam siv, thiab feem ntau ntawm lawv tsis yog qib zaub mov.
Post lub sij hawm: Aug-24-2021