Cov pa roj carbon monoxide yog ib qho tseem ceeb ntawm kev lag luam hlau.Kev ua tau zoo thiab cov qauv ntawm cov hlau feem ntau txiav txim siab los ntawm cov ntsiab lus thiab faib cov pa roj carbon hauv cov hlau.Cov nyhuv ntawm carbon yog tshwj xeeb tshaj yog nyob rau hauv stainless hlau.Kev cuam tshuam ntawm carbon ntawm cov qauv ntawm cov hlau tsis muaj steel feem ntau yog tshwm sim hauv ob yam.Ntawm qhov tod tes, cov pa roj carbon monoxide yog ib yam khoom uas ruaj khov austenite, thiab cov nyhuv yog loj (kwv yees li 30 npaug ntawm npib tsib xee), ntawm qhov tod tes, vim muaj kev sib raug zoo ntawm carbon thiab chromium.Loj, nrog chromium - ib tug complex series ntawm carbides.Yog li ntawd, nyob rau hauv cov nqe lus ntawm lub zog thiab corrosion kuj, lub luag hauj lwm ntawm carbon nyob rau hauv stainless hlau yog contradictory.
Paub txog txoj cai ntawm qhov kev cuam tshuam no, peb tuaj yeem xaiv cov hlau tsis muaj steel nrog cov ntsiab lus sib txawv raws li cov kev xav tau sib txawv.
Piv txwv li, tus qauv chromium cov ntsiab lus ntawm tsib qib steel ntawm 0Crl3 ~ 4Cr13, uas yog siv dav hauv kev lag luam thiab qhov tsawg tshaj plaws, yog teem rau ntawm 12 ~ 14%, uas yog, cov ntsiab lus uas carbon thiab chromium daim ntawv chromium carbide raug coj mus rau hauv tus account.Lub hom phiaj txiav txim siab yog tias tom qab cov pa roj carbon thiab chromium tau muab tso rau hauv chromium carbide, cov ntsiab lus chromium hauv cov khoom siv yuav tsis qis dua li cov ntsiab lus chromium yam tsawg kawg nkaus ntawm 11.7%.
Raws li cov tsib qib steel muaj kev txhawj xeeb, vim qhov sib txawv ntawm cov ntsiab lus carbon, lub zog thiab corrosion kuj kuj txawv.Qhov kev tiv thaiv corrosion ntawm 0Cr13 ~ 2Crl3 steel zoo dua tab sis lub zog qis dua li ntawm 3Crl3 thiab 4Cr13 steel.Nws feem ntau yog siv rau kev tsim cov khoom siv.
Vim muaj cov ntsiab lus ntawm cov pa roj carbon ntau, ob qib steel tuaj yeem tau txais lub zog siab thiab feem ntau yog siv rau hauv kev tsim cov springs, riam thiab lwm yam uas yuav tsum tau muaj zog thiab hnav tsis kam.Rau lwm qhov piv txwv, txhawm rau txhawm rau kov yeej qhov sib txawv ntawm 18-8 chromium-nickel stainless hlau, cov ntsiab lus carbon ntawm cov hlau tuaj yeem raug txo kom tsawg dua 0.03%, lossis cov khoom (titanium lossis niobium) uas muaj kev sib raug zoo ntau dua li chromium thiab carbon ntxiv los tiv thaiv nws los ntawm kev tsim carbide.Chromium, piv txwv li, thaum lub siab tawv thiab hnav tsis kam yog qhov tseem ceeb, peb tuaj yeem nce cov ntsiab lus ntawm cov hlau thaum nce cov ntsiab lus chromium kom tsim nyog, thiaj li ua tau raws li qhov yuav tsum tau ua ntawm hardness thiab hnav tsis kam, thiab coj mus rau hauv tus account qee yam corrosion kuj, kev lag luam siv raws li bearings, ntsuas cov cuab yeej thiab cov hniav nrog stainless hlau 9Cr18 thiab 9Cr17MoVCo steel yog 0%, txawm hais tias lawv cov ntsiab lus siab yog 0%. kuj nce raws li, yog li nws tseem guarantees corrosion kuj.Xav tau.
Feem ntau hais lus, cov ntsiab lus carbon ntawm stainless hlau tam sim no siv hauv kev lag luam yog qhov tsawg.Feem ntau ntawm cov hlau stainless muaj cov ntsiab lus carbon ntawm 0.1 txog 0.4%, thiab cov kua qaub-resistant steels muaj cov ntsiab lus carbon ntawm 0.1 txog 0.2%.Stainless hlau nrog cov ntsiab lus carbon ntau dua 0.4% tsuas yog ib feem me me ntawm tag nrho cov qib, vim tias nyob rau hauv feem ntau ntawm kev siv, stainless hlau yeej ib txwm muaj kev tiv thaiv corrosion raws li lawv lub hom phiaj tseem ceeb.Tsis tas li ntawd, cov ntsiab lus qis qis kuj yog vim qee cov txheej txheem yuav tsum tau ua, xws li vuam yooj yim thiab deformation txias.
Post lub sij hawm: Sep-27-2022