Lub sintering ntawmcemented carbideyog kua theem sintering, uas yog, nws yog nqa tawm nyob rau hauv lub mob uas lub tsev kho mob theem nyob rau hauv cov kua theem.Lub compact yog rhuab mus rau 1350C-1600C hauv lub tshuab nqus tsev vacuum.Cov kab shrinkage ntawm lub compact thaum sintering yog hais txog 18%, thiab lub ntim shrinkage yog hais txog 50%.Lub caij nyoog shrinkage nyob ntawm seb qhov luaj li cas ntawm tungsten carbide hmoov thiab muaj pes tsawg leeg ntawm covcemented carbide.
Lub sintering ntawmcemented carbideyog cov txheej txheem ntawm lub cev thiab tshuaj lom neeg, uas suav nrog kev tshem tawm plasticizer, degassing, cov khoom theem sintering, kua theem sintering, alloying, densification, dissolution thiab nag lossis daus, thiab lwm yam. nyob rau hauv tej yam kev mob sintering.Cov txheej txheem no txawv heev nyob ntawm seb cov khoom siv sintering sib txawv.
CarbideLub tshuab nqus tsev sintering yog txheej txheem ntawm sintering tsawg dua 1atm (1atm = 101325Pa).Sintering nyob rau hauv lub tshuab nqus tsev zoo heev txo cov hindrance ntawm densification los ntawm adsorbed pa roj nyob rau hauv cov hmoov av thiab roj nyob rau hauv kaw qhov pores, uas yog conducive rau lub diffusion txheej txheem thiab densification, thiab zam cov tshuaj tiv thaiv ntawm hlau thiab tej yam ntuj tso nyob rau hauv cov huab cua thaum lub sij hawm sintering txheej txheem.Nws tuaj yeem txhim kho lub wettability ntawm cov kua sib txuas ua ke thiab cov theem nyuaj, tab sis yuav tsum tau saib xyuas kom tsis txhob muaj cov evaporation poob ntawm cobalt thaum lub tshuab nqus tsev sintering.Lub tshuab nqus tsev sintering feem ntau tuaj yeem muab faib ua plaub theem, xws li plasticizer tshem tawm theem, pre-sintering theem,tungsten carbidehigh-temperature sintering theem, thiab txias theem.
Post lub sij hawm: Feb-22-2024
