Cov xwm txheej dab tsi tuaj yeem stainless hlau cua sov kav hlau xeb?

Cov xwm txheej dab tsi tuaj yeem stainless hlau cua sov kav hlau xeb?

Feem ntau, stainless hlau 304 cua sov kav tsis muaj xeb, tab sis kuj tseem muaj peev xwm ntawm xeb. Qee cov neeg siv khoom yuav xav tias muaj teeb meem nrog cov khoom siv stainless hlau ntawm peb cov kav dej cua sov, uas yog nkag siab. Niaj hnub no, Yancheng Hongchuang yuav luv luv tham rau koj txog qhov tsis tshua muaj tshwm sim ntawm stainless hlau cua sov kav rusting.

Stainless hlau feem ntau tsis xeb, tab sis thaum raug cov tshuaj chlorine los yog hnyav ib puag ncig, tshwj xeeb tshaj yog thaum cov txheej txheem passivation ntawm nws qhov chaw yog mechanically lossis chemically puas, nws yog feem ntau yuav xeb dua li niaj zaus, yog li nws yog qhov yooj yim rau xeb hauv qhov chaw zoo li no. Qhov saum npoo ntawm stainless hlau cov khoom peb feem ntau siv yog passivated, thiab cov chromium oxide zaj duab xis ntawm nws nto yog ntau thicker thiab denser tshaj cov oxide zaj duab xis ib txwm tsim nyob rau ntawm qhov chaw tshiab. Yog li, stainless hlau hluav taws xob cua sov kav kuj tuaj yeem xeb!

Tom ntej no, peb yuav qhia qee cov ntaub ntawv stainless hlau:

Tag nrho cov hlau hauv lub neej raug oxidation cov tshuaj tiv thaiv nrog oxygen nyob rau hauv cov huab cua, tsim cov oxide zaj duab xis rau saum npoo. Txawm li cas los xij, cov hlau oxide tsim los ntawm cov pa roj carbon zoo tib yam yuav txuas ntxiv mus rau oxidize, ua rau xeb kom nthuav dav thiab thaum kawg tsim cov pores. Painting lossis oxidation resistant hlau (xws li zinc, npib tsib xee, thiab chromium) tuaj yeem siv rau electroplating los tiv thaiv cov pa roj carbon steel, tab sis raws li paub, qhov kev tiv thaiv no tsuas yog ib zaj duab xis nyias. Yog tias cov txheej tiv thaiv puas lawm, cov hlau hauv qab no pib xeb. Chromium yog lub hauv paus ntsiab lus uas ua rau cov hlau tsis muaj steel kom ua tau zoo corrosion. Thaum cov ntsiab lus chromium nyob rau hauv cov hlau ncav txog li 12%, chromium reacts nrog oxygen nyob rau hauv nruab nrab corrosive los tsim ib tug nyias oxide zaj duab xis (tus kheej passivation zaj duab xis) nyob rau hauv steel nto, uas yuav tiv thaiv tau ntxiv corrosion ntawm steel substrate. Ntxiv nrog rau chromium, feem ntau siv cov ntsiab lus alloy muaj xws li npib tsib xee, molybdenum, titanium, niobium, tooj liab, nitrogen, thiab lwm yam, kom ua tau raws li qhov yuav tsum tau siv ntau yam rau cov qauv thiab cov khoom ntawm stainless hlau.

tshuaj muaj pes tsawg leeg

Kev tiv thaiv corrosion ntawm stainless hlau txo qis nrog kev nce ntawm cov ntsiab lus carbon, yog li ntawd, feem ntau cov hlau tsis muaj cov ntsiab lus carbon tsawg, thiab qee cov hlau tseem muaj cov ntsiab lus carbon hauv qab 0.03% (xws li 00Cr12) . Lub ntsiab alloying hauv stainless hlau yog chromium, thiab thaum cov ntsiab lus chromium ncav cuag ib theem, stainless hlau yuav muaj corrosion kuj. Yog li, stainless hlau feem ntau muaj cov ntsiab lus chromium ntau dua 13%. Stainless hlau tseem muaj cov khoom xws li Ni, Ti, Mn, N, Nb, thiab lwm yam.

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