FAQ

Ua ntej tshaj, cov hlau hlau muaj peev xwm tsim tau kaum tawm txhiab tus ntawm cov castings hauv kev ua tiav nrawm yuav tsum tau ua kom tsawg kawg ob ntu kom tso cai tshem tawm cov castings. Cov ntu no tau teeb tsa kom ruaj ntseg hauv lub tshuab thiab tau teeb tsa kom ib qho nyob ruaj ruaj (tuag ib nrab) thaum lwm qhov txav tau (txhaj tshuaj ib nrab tuag). Txhawm rau pib lub voj voog casting, ob qhov tuag ib nrab tau raug kaw nruj nreem ua ke los ntawm lub tshuab tuag casting. Cov hlau yaj tau txhaj rau hauv cov kab noj tuag uas nws ua kom sai sai. Cov tuag ib nrab tau kos sib nrug thiab cov casting raug tshem tawm. Tuag casting tuag tuaj yeem ua tau yooj yim lossis nyuaj, muaj cov swb txav tau, cov cores, lossis lwm ntu nyob ntawm qhov nyuaj ntawm kev nrum.

Lub voj voog ua tiav ntawm cov txheej txheem tuag yog nyob deb ntawm qhov nrawm tshaj plaws paub rau kev tsim cov khoom uas tsis yog hlau tsis raug. Qhov no yog qhov cim sib txawv rau cov xuab zeb casting uas xav tau cov xuab zeb tshiab rau txhua qhov pov tseg. Thaum cov txheej txheem pwm tas mus li siv hlau lossis hlau pwm hloov pauv ntawm cov xuab zeb, nws yog qhov qeeb qeeb, thiab tsis yog qhov tseeb raws li tuag casting.