Yuav kom hloov kho tau raws li kev siv sib txawv, lub tshuab xuab zeb tau muab faib ua ntau hom sib txawv, ntawm cov khoom siv xuab zeb hlau yog ib qho ntawm lawv. Ua ib qho khoom siv ntxuav tseem ceeb hauv kev lag luam hlau casting, nws tau qhia meej ntxiv tom ntej.
Cov khoom siv xuab zeb rau cov qauv hlau siv dav hauv kev lag luam casting. Ntau cov qauv hlau thiab cov castings grey xav tau cov khoom siv xuab zeb rau cov qauv hlau rau kev kho ua ntej-derusting. Tom qab kev kho mob, cov haujlwm ntawm cov khoom no tau txhim kho, qhov kev sib zog thiab kev tiv thaiv corrosion tau zoo dua, thiab cov tawv nqaij oxide thiab xuab zeb ntawm qhov chaw ntawm qhov casting tau raug tshem tawm zoo.
Kev ua haujlwm ntawm cov khoom siv xuab zeb hlau yooj yim heev. Tsuas yog muab cov hlau tso rau hauv lub tshuab thiab nias lub pob pib. Tom qab lub voj voog luv luv, lub kaw lus yuav rho tawm cov khoom kho, uas txhais tau tias tag nrho cov txheej txheem ntxuav tiav lawm thiab tag nrho cov hmoov av thiab cov roj seem raug tshem tawm. Lub tshuab xuab zeb hlau tuaj yeem ua tiav txoj haujlwm ntxuav lub hom phiaj, uas tsis yog tsuas yog txo qhov siv zog ntawm kev ntxuav tes xwb, tab sis kuj txhim kho cov txiaj ntsig ntxuav thiab kev ua haujlwm zoo. Tib lub sijhawm, cov khoom siv kho tshuab yog ua los ntawm hlau, tsim qauv tsim nyog. Txawm tias cov khoom siv ua haujlwm ntev, nws yuav tsis ua rau muaj qhov tsis zoo loj thiab muaj lub neej ua haujlwm ntev. Nws yog cov khoom siv ntxuav tseem ceeb rau kev lag luam casting hlau.
Cov khoom siv xuab zeb rau cov qauv hlau yog hais txog kev xa cov qauv hlau lossis hlau mus rau thaj chaw tawm ntawm chav ntxuav ntawm cov khoom siv los ntawm txoj kev xa khoom hluav taws xob nrog qhov ceev hloov kho tau. Qhov chaw ntawm cov khoom hlau tuaj yeem raug ntaus thiab txhuam los ntawm cov khoom muaj zog los ntawm ntau qhov kev taw qhia hauv cov khoom siv, yog li cov tawv nqaij oxide, txheej xeb thiab cov xim pleev xim ntawm qhov chaw ntawm cov khoom hlau no tuaj yeem tshem tawm, thiab cov khoom hlau tuaj yeem ua kom du tom qab kho. Cov hlau kho tuaj yeem raug tshem tawm los ntawm txoj kev ntxuav ntawm qhov nkag thiab tawm sab nraum zoov.
Qhov saum toj no yog qhov zoo ntawm kev siv cov qauv hlau sandblasting tshuab, cov yam ntxwv thiab lwm yam kev ua si, tus neeg siv tuaj yeem nkag siab los ntawm kev taw qhia saum toj no, tuaj yeem muab kev ua si tag nrho rau nws qhov kev siv kom zoo dua hauv kev siv.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-29-2022
