- 10
- Dec
Qhov zoo ntawm lub tshuab nqus tsev sintering rauv
Qhov zoo ntawm Lub tshuab nqus tsev sintering rauv
1. Nws yooj yim dua los tswj cov ntsiab lus carbon: nyob rau hauv lub tshuab nqus tsev sintering kub, lub siab nyob rau hauv lub cub tawg tsuas yog kaum ntawm Pascals (Pa) los yog txawm qis dua, O2, N2, H2 thiab H2O molecules muaj tsawg heev, thiab ntau Cov tshuaj tiv thaiv tuaj yeem tsis quav ntsej. Qhov cuam tshuam me me heev. Ntev npaum li cov txheej txheem dewaxing tau tswj nruj me ntsis, cov ntsiab lus carbon ntawm cov hlau hloov pauv me ntsis thaum lub tshuab nqus tsev sintering, thiab cov kev ua tau zoo thiab cov qauv zoo heev.
2. Nws tuaj yeem txhim kho qhov purity ntawm sintered alloy: nyob rau hauv lub tshuab nqus tsev sintering tej yam kev mob, nws muaj txiaj ntsig zoo rau kev txo cov hlau oxides; tag nrho lub voj voog sintering tsis tas yuav qhib qhov rooj rauv, tsis muaj cua nkag, thiab yuav luag tsis muaj cov tshuaj tiv thaiv ntawm N2 thiab O2.
3. Nws tuaj yeem txhim kho cov khoom theem ntawm cov hlau: nyob rau hauv lub tshuab nqus tsev sintering tej yam kev mob, qhov saum npoo ntawm cov theem nyuaj adsorbs tsawg impurities, txhim kho lub wettability ntawm lub laum mus rau lub hard theem, thiab txhim kho lub zog ntawm cov alloy, tshwj xeeb tshaj yog cov alloy. muaj TiC.
4. Cov txheej txheem kev ua haujlwm yog yooj yim: txij li cov muab tub lim tuaj yeem raug tshem tawm thaum lub tshuab nqus tsev sintering, qhov no tsis tsuas yog ua kom yooj yim rau kev ua haujlwm, tab sis kuj zam qhov tsis zoo ntawm cov muab tub lim rau ntawm qhov chaw ntawm lub cev sintered.
5. Ntau yam kub sintering tuaj yeem paub tau: kub, cua thiab cua sov siab tuaj yeem tswj tau nyias nyob rau hauv qhov kub thiab txias, thiab isothermal sintering (kub preservation) ntawm qhov kub thiab txias tuaj yeem ua tiav, thiab ntau lub zog tuaj yeem ua tiav, xws li gradient alloy sintering.