Qhov txawv ntawm steel castings thiab hlau castings:
Hlau thiab hlau yog feem ntau cov hlau.Txhawm rau ua kom tau raws li daim ntawv thov kev xav tau ntawm qhov chaw sib txawv, cov tuam ntxhab yuav ua cov txheej txheem sib txawv, thiab cam khwb cia hlau thiab cam khwb cia hlau yog li tsim.
1. Qhov ci ci txawv.Cam khwb cia hlau yog ci dua, thaum cam khwb cia hlau yog grey thiab tsaus.Ntawm lawv, grey hlau thiab ductile hlau hauv cam khwb cia hlau muaj qhov ci sib txawv, qhov qub yog tsaus dua li yav tas los.
2. Cov khoom sib txawv.Txawm hais tias cam khwb cia hlau yog grey hlau los yog hlau ductile, cov khoom tuaj yeem pom, thiab cov khoom ntawm cov hlau grey loj dua;cov cam khwb cia hlau uas tsim los ntawm lub foundry yog heev ntom, thiab cov hais rau nws yog feem ntau pom tsis tau ntawm qhov muag liab qab.
3. Lub suab txawv.Cov hlau castings yuav ua lub suab "tsuas yog" thaum lawv sib tsoo, tab sis cam khwb cia hlau txawv.
4. Gas txiav yog txawv.Qhov saum npoo ntawm cam khwb cia hlau yog qhov ntxhib, nrog rau qhov loj ntawm riser thiab lub rooj vag, uas yuav tsum tau txiav cov roj, tab sis cov roj txiav tsis ua haujlwm ntawm cov cam khwb cia hlau.
5. Sib txawv toughness.Lub toughness ntawm cam khwb cia hlau yog me ntsis tsis zoo, lub nyias-walled seem yuav khoov ntawm 20-30 degrees, thiab grey hlau tsis muaj toughness;lub toughness ntawm cov hlau castings uas tsim los ntawm cov foundry yog ze rau ntawm cov hlau phaj, uas yog zoo dua li ntawm cov cam khwb cia hlau.
Lub sij hawm xa tuaj: Mar-10-2022
