Tungsten carbide yog cov khoom siv hlau metallurgy, feem ntau suav nrog: tungsten carbide (WC) cov khoom tawv tawv, cov hlua hlau cobalt (Co) thiab Ti, Ta, Nb (titanium, tantalum, niobium carbide) cov khoom nyuaj, thiab tom qab cov txheej txheem ntau lawm: hmoov ntau lawm - hmoov nias - sintering nias hniav - hniav sib tsoo - txheej. Hauv kev npaj ntawm cemented carbide hmoov, ntau cov hmoov hlau yog thawj zaug sib xyaw, tom qab ntawd hauv av, thiab thaum kawg qhuav. Lub zog extrusion siv nyob rau hauv cov hmoov compaction theem feem ntau yog 20-50 tons.Nyob rau theem tom ntej, cov hniav yog tsuas yog muab tso rau ntawm ib lub tais rau hauv qhov cub kub kub rau sintering, thiab lub shrinkage yog xyuas los ntawm lub sij hawm mus rau lub sij hawm. Thaum lub sij hawm sib tsoo, sab saum toj, hauv qab thiab ib puag ncig ntawm cov hniav yog hauv av kom tshem tawm cov ntug imperfections. Qhov kawg txheej txheej yuav lossis tsis tas yuav tsum tau, feem ntau muab faib ua ob hom: CVD-chemical vapor deposition thiab PVD-lub cev vapor deposition. Ntawm lawv, CVD txheej yog tuab dua, muaj kev hnav siab dua thiab tiv taus cua sov ntau dua. PVD muaj cov txheej txheej thinner, txiav cov npoo thiab ntau dua toughness. Peb tuaj yeem ua cov txheej txheem txheej tsim nyog rau cov hniav raws li daim ntawv thov tiag tiag.
