Nag ua nag lossis daus ua rau tawv tawv muaj cov ntawv thov tseem ceeb hauv kev lag luam niaj hnub. Txhawm rau kom nkag siab txog nws cov cai ua haujlwm, koj yuav tsum tau ua ntej to taub cov yam ntxwv ntawm cov hlau ua kom tawv.
Nag lossis daus cov tawv nqaij yog hom tshwj xeeb ntawm cov hlau sib txuas no, yog li txhim kho cov txheej txheem kev kho cua sov tshwj xeeb thiab hardness ntawm cov khoom siv. Qhov no ntxiv dag zog me ntsis yog ua raws li cov hauv paus nag lossis daus muaj zog ntxiv hauv metallurgy.
Nyob rau hauv kev nqis peev casting txheej txheem, wax mould yog thawj zaug ua, thiab cov duab ntawm cov hlev hauv ciab yog qhov tseeb tib yam li cov uas xav tau. Tom qab ntawd, ntau txheej ntawm cov ntaub ntawv refractory yog coated nyob rau saum npoo ntawm cov quav ciab mould los ua lub plhaub. Lub luag haujlwm ntawm lub plhaub yog kom muaj cov hlau molten thaum lub sijhawm tom qab pouring txheej txheem thiab muab cov duab kawg.
Thaum lub plhaub tau npaj, cov moula moult tau melted thiab ntws tawm kom tau txais kab noj hniav nrog lub ntsej muag zoo nkauj. Nov yog cov txheej txheem dewaxing. Tom ntej no, stainless hlau molten hlau rhawv rau ib qho kub yog hliv rau hauv kab noj hniav. Lub molten hlau txias thiab solidifies hauv lub khauj khaum los ua tus yuav tsum tau muab tso rau seem.
Txawm li cas los xij, txawm hais tias tus casting nyob rau lub sijhawm no muaj cov duab yooj yim, nws tseem tsis tau txog qhov kev xav tau kawg. Qhov no yuav tsum muaj kev kho cua sov tom ntej. Txog nag lossis daus-tawv-tawv stainless hlau peev txheej, cov txheej txheem kev kho cua sov yog qhov tshwj xeeb. Feem ntau, cov casting yog thawj rhuab kom muaj qhov kub siab dua rau kev daws cov khoom siv kom meej rau hauv lub pob zeb ua ke, thiab tom qab ntawd tau txias sai li sai tau cov qauv hloov kho cov qauv.
Thaum kawg, kev kho mob laus yog ua. Thaum muaj kev laus kub, cov khoom siv alloy hauv cov kev daws teeb meem supersaturated yuav maj mam precipitate nyob rau hauv daim ntawv ntawm zoo heev. Cov khoom siv no muaj zog no tau muab faib rau ntawm cov nplej sib xyaw ua ke thiab tsis sib haum lub zog, yog li kev txhim kho lub zog thiab qhov nyuaj ntawm lub casting. Los ntawm no daus cov txheej txheem ua kom tawv, nag lossis daus-tawv-tawv tawv
