Cemented carbide sintering yog qhov yooj yim tshaj plaws thiab cov txheej txheem tseem ceeb hauv cov txheej txheem tsim khoom. Cov txheej txheem sintering ib txwm muaj xws li hydrogen sintering, nqus sintering thiab kub isostatic nias.
1.Hydrogen Sintering
Muab lub compact nyob rau hauv lub nkoj graphite, ces sau nws nrog alumina muab tub lim los yog graphite particle muab tub lim nrog ib tug tej yam carbon cov ntsiab lus, muab tso rau hauv ib tug nruam propelling molybdenum hlau rauv, thiab sinter nws nyob rau hauv kev tiv thaiv ntawm hydrogen. Cov txheej txheem sintering yog nqa tawm nyob rau hauv lub siab zoo, thiab cov pores nyob rau hauv cov khoom tsis tuaj yeem raug tshem tawm tag nrho, tawm hauv cov pores seem, thiab oxide impurities tsis tuaj yeem volatilized thiab tshem tawm zoo.
2. Nqus Sintering
Nqus sintering yog tus txheej txheem ntawm sintering thiab nias nyob rau hauv ib tug tsis zoo siab gasket nruab nrab. Piv nrog rau hydrogen sintering, lub tshuab nqus tsev sintering tuaj yeem txhim kho qhov purity ntawm cov roj cua sov, thiab qhov tsis zoo siab tuaj yeem txhim kho lub wettability ntawm cov txheeb ze txheeb ze zog. Txoj kev tuaj yeem tshem tawm impurities thiab txhim kho alloy purity, ntom thiab cov khoom siv kho tshuab.
3. Kub Isostatic Nias
Txoj kev no tuaj yeem tshem tawm qhov tsis xws luag thiab qhov pores ntawm cov khoom hauv cov khoom, thiab txhim kho qhov ntom thiab lub zog ntawm cov khoom. Cov txheej txheem tseem ceeb yog: ua ntej muab cov hmoov sib tov thiab cov hmoov lub cev (uas yog, cov hmoov pob) nyob rau hauv lub thawv tshwj xeeb rau hauv lub thawv siab ntawm cov kub isostatic xovxwm, thiab tom qab ntawd siv qhov kub thiab txias los ua cov hmoov. pressed thiab sintered rau hauv ib tug ntom qhov chaw los yog cov ntaub ntawv.
