Vichnet muaj ntau tus neeg siv khoom hauv kev lag luam khoom noj thiab tshuab. Cov neeg siv khoom no feem ntau nyiam SS304 lossis SS316 hlau mesh cable tais thaum lawv yuav khoom siv cabling. Peb ib txwm nug los ntawm cov neeg siv khoom no vim li cas peb SS304 thiab SS316 yog hlau nplaum.
Ua ntej txiav txim siab qhov no, nws yog qhov zoo kom nkag siab tias dab tsi ua rau qib stainless hlau sib nqus los yog tsis.
Stainless hlau yog hlau-raws li alloys tshwj xeeb tshaj yog paub rau lawv feem ntau zoo heev corrosion kuj. Muaj ntau ntau hom stainless hlau. Ob hom tseem ceeb yog austenitic thiab ferritic. Ob leeg muaj cov tshuaj sib txawv. Vim qhov sib txawv no, ferritic stainless hlau feem ntau sib nqus thaum austenitic stainless hlau tsis yog. Ib tug ferritic stainless hlau tshuav nws cov hlau nplaum rau ob yam: nws siab concentration ntawm hlau thiab nws cov qauv tsim.
Ferritic - feem ntau sib nqus Austenitic - tsis yog hlau nplaum
Transformation ntawm non-magnetic mus rau magnetic theem
Ob leeg 304 thiab 316 stainless hlau yog austenitic, thaum lawv txias, cov hlau tseem nyob rau hauv daim ntawv ntawm austenite (gamma hlau), ib theem ntawm hlau uas tsis yog magnetic. Cov theem sib txawv ntawm cov khoom hlau sib txawv rau cov qauv siv lead ua sib txawv. Hauv lwm cov hlau alloys, qhov kub-kub theem ntawm hlau hloov mus rau theem sib nqus thaum cov hlau txias. Lub xub ntiag ntawm npib tsib xee nyob rau hauv stainless hlau alloys stabilizes austenite tiv thaiv theem kev hloov no thaum lub alloy txias rau chav tsev kub. Qhov no sib haum mus rau ib tug me ntsis loj magnetic susceptibility ntau tshaj li peb yuav xav tau rau lwm yam nonmagnetic cov ntaub ntawv, tab sis nws yog tseem zoo nyob rau hauv cov nqe lus nug ntawm yuav ua li cas sib nqus.
Txawm li cas los xij, qhov no tsis tau txhais hais tias koj yuav tsum cia siab tias yuav ntsuas qhov qis qis ntawm ib yam khoom ntawm 304 lossis 316 stainless hlau uas koj ntsib. Txhua tus txheej txheem uas tuaj yeem hloov pauv cov qauv siv lead ua ntawm cov hlau tsis huv tuaj yeem ua rau austenite hloov mus rau ferromagnetic martensite lossis ferrite cov ntaub ntawv hlau. Cov txheej txheem no suav nrog kev ua haujlwm txias thiab vuam. Nws kuj tseem ua tau rau austenite kom hloov mus rau martensite ntawm qhov kub thiab txias. Txhawm rau ua kom muaj teeb meem ntxiv, cov khoom sib nqus ntawm cov alloys nyob ntawm seb muaj pes tsawg leeg. Tsis pub dhau qhov kev tso cai ntawm kev hloov pauv ntawm Ni thiab Cr, qhov sib txawv tseem ceeb hauv cov khoom sib nqus yuav raug soj ntsuam rau cov khoom siv alloy.