Cov khoom siv raw rau cov xuab zeb pwm yog cov xuab zeb thiab cov xuab zeb molding. Feem ntau siv cov xuab zeb yog silica xuab zeb. Thaum lub siab - kub ua haujlwm ntawm silica xuab zeb tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, cov xuab zeb tshwj xeeb xws li zircon xuab zeb, chromite xuab zeb, thiab corundum xuab zeb yog siv. Txhawm rau xyuas kom meej tias cov xuab zeb pwm thiab cov cores muaj lub zog txaus thiab tsis txhob deform lossis tawg thaum tuav, sib dhos, thiab nchuav cov hlau molten, molding xuab zeb binder feem ntau ntxiv thaum casting los khi cov xuab zeb xoob ua ke.
Feem ntau siv molding xuab zeb binder yog av nplaum. Ntau yam ziab lossis ib nrab- ziab roj, dej- soluble silicates los yog phosphates, thiab ntau yam hluavtaws resins tuaj yeem siv los ua cov xuab zeb binders. Cov xuab zeb sab nraud siv hauv cov xuab zeb casting tau muab faib ua peb hom raws li cov ntaub ntawv siv thiab cov txheej txheem ntawm kev tsim lub zog: av nplaum ntub xuab zeb pwm, av nplaum qhuav xuab zeb pwm, thiab tshuaj lom neeg cov xuab zeb pwm.
