Vim li cas 304, 316 stainless hlau yeeb nkab fittings sib nqus

Hauv lub neej tiag tiag, neeg feem coob xav li ntawdstainless hlau tsis yog magnetic, thiab nws yog unscientific siv hlau nplaum los txheeb xyuas stainless hlau.Cov neeg feem ntau xav tias cov hlau nplaum nqus cov ntaub ntawv stainless hlau kom ntseeg tau tias lawv qhov zoo thiab qhov tseeb.Lawv tsis ntxim nyiam thiab tsis sib nqus.Lawv raug suav hais tias yog qhov zoo thiab qhov tseeb;yog tias lawv yog cov hlau nplaum, lawv xav tias yog cov khoom cuav.Qhov no tsuas yog ib qho tsis tshua muaj ib sab thiab ua tsis tau zoo ntawm kev txheeb xyuas qhov yuam kev.Muaj ntau ntau hom stainless hlau, uas tuaj yeem muab faib ua ob peb pawg raws li lub koom haum qauv ntawm chav tsev kub

1. Austenite hom xws li 304, 321, 316, 310, thiab lwm yam;

2. Martensite lossis ferrite hom xws li 430, 420, 410, thiab lwm yam;Austenitic hom tsis yog sib nqus los yog tsis muaj zog sib nqus, thiab martensite lossis ferrite yog sib nqus.Feem ntau ntawm cov hlau tsis muaj steel feem ntau yog siv rau cov nplooj ntawv zoo nkauj yog austenitic 304, uas feem ntau tsis muaj hlau nplaum lossis tsis muaj zog hlau nplaum.Txawm li cas los xij, vim muaj cov tshuaj lom neeg sib txawv los yog cov txheej txheem sib txawv uas tshwm sim los ntawm smelting, hlau nplaum kuj tuaj yeem tshwm sim, tab sis qhov no tsis tuaj yeem xav tias yog vim li cas rau qhov cuav lossis tsis tsim nyog?Raws li tau sau tseg saum toj no, austenite tsis yog sib nqus lossis tsis muaj zog sib nqus, thaum martensite lossis ferrite yog sib nqus.Vim muaj kev sib cais los yog kev kho cua sov tsis zoo thaum lub sij hawm smelting.Ib qho me me ntawm martensite lossis ferrite hauv austenitic 304 stainless hlau yuav tshwm sim.Lub cev nqaij daim tawv.Nyob rau hauv txoj kev no, 304 stainless hlau yuav muaj zog hlau nplaum.Tsis tas li ntawd, tom qab 304 stainless hlau ua haujlwm txias, cov qauv yuav hloov mus rau hauv martensite.Qhov ntau dua qhov kev ua haujlwm txias deformation, qhov hloov pauv ntawm martensite ntau dua thiab ntau dua cov khoom sib nqus ntawm cov hlau.Zoo li ib pawg ntawm steel siv,Φ76 lub raj yog tsim tsis muaj qhov pom tseeb sib nqus induction, thiabΦ9.5 raj yog tsim.Vim tias qhov khoov deformation loj dua, qhov sib nqus induction yog qhov pom tseeb dua, thiab qhov deformation ntawm lub voj voog square raj yog loj dua li ntawm cov raj puag ncig, tshwj xeeb tshaj yog lub kaum sab xis, qhov deformation yog khaus thiab cov hlau nplaum yog pom tseeb dua.Txhawm rau tshem tawm cov khoom hypnotic ntawm 304 steel tshwm sim los ntawm cov laj thawj saum toj no, cov qauv austenite tuaj yeem rov qab los thiab ruaj khov los ntawm kev kho kub kub, yog li tshem tawm cov khoom sib nqus.Tshwj xeeb, cov hlau nplaum ntawm 304 stainless hlau tshwm sim los ntawm cov ntsiab lus saum toj no tsis nyob rau tib theem li lwm cov ntaub ntawv ntawm stainless hlau, xws li 430 thiab carbon hlau.Qhov ntawd tsuas yog hais tias, cov hlau nplaum ntawm 304 steel ib txwm qhia tsis muaj zog hlau nplaum.Qhov no qhia peb tias yog tias cov hlau tsis muaj zog hlau nplaum tsis muaj zog los yog tsis yog, nws yuav tsum raug txiav txim raws li 304 lossis 316;Yog hais tias nws yog tib yam li carbon steel, nws qhia tau hais tias muaj zog hlau nplaum, vim hais tias nws yog txiav txim raws li tsis 304. Ob leeg 304 thiab 316 yog austenitic stainless hlau thiab yog ib theem.Nws yog weakly magnetic.


Post lub sij hawm: Sep-09-2020