Pores tom qab sintering

Cemented carbide yog ib hom kev sib xyaw ua ke ntawm tungsten thiab carbon sib npaug, uas muaj qhov nyuaj ze rau pob zeb diamond. Cemented carbide muaj siab toughness thiab siab hardness tib lub sijhawm. Cemented carbide yog tsim los ntawm hmoov metallurgy, thiab sintering yog cov txheej txheem tseem ceeb tshaj plaws thaum tsim cov khoom siv cemented carbide. Nws yog ib qho yooj yim ua rau pores tom qab tungsten carbide sintering yog tias nws tsis tswj kom zoo. Hauv tsab xov xwm no, koj yuav tau txais qee cov ntaub ntawv hais txog qhov pores tom qab tungsten carbide sintering.

Cov tungsten carbide hmoov thiab binder hmoov sib tov nyob rau hauv ib qho kev faib ua feem. Tom qab ntawd cov hmoov sib tov yog ua rau ntsuab compact tom qab ntub milling nyob rau hauv lub pob zeb tshuab, tshuaj tsuag kom qhuav, thiab compacting. Cov ntsuab tungsten carbide compacts yog sintered nyob rau hauv HIP sintering rauv.

Lub ntsiab sintering txheej txheem yuav muab faib ua plaub theem. Lawv yog cov kev tshem tawm ntawm molding tus neeg sawv cev thiab pre-sintering theem, khoom-theem sintering theem, kua-theem sintering theem, thiab txias sintering theem. Thaum lub sij hawm sintering, qhov kub yog nce maj mam. Hauv factories, muaj ob txoj hauv kev rau sintering. Ib qho yog hydrogen sintering, nyob rau hauv uas muaj pes tsawg leeg ntawm cov khoom yog tswj los ntawm theem cov tshuaj tiv thaiv kinetics hauv hydrogen thiab atmospheric siab. Thiab lwm qhov yog lub tshuab nqus tsev sintering, uas yog siv lub tshuab nqus tsev ib puag ncig lossis ib puag ncig txo. Cov roj siab tswj cov cemented carbide muaj pes tsawg leeg los ntawm kev ua kom qeeb ntawm cov tshuaj tiv thaiv kinetics.

Tsuas yog thaum cov neeg ua haujlwm tswj hwm txhua theem ua tib zoo, tungsten carbide cov khoom kawg tuaj yeem tau txais qhov xav tau microstructure thiab tshuaj muaj pes tsawg leeg. Qee qhov pores yuav tshwm sim tom qab sintering. Ib qho ntawm cov laj thawj tseem ceeb yog hais txog sintering kub. Yog hais tias qhov kub thiab txias nce ceev, los yog qhov kub ntawm sintering siab dhau lawm, cov qoob loo loj hlob thiab kev txav mus los yuav tsis sib xws, uas ua rau muaj cov pores. Lwm qhov laj thawj tseem ceeb yog tus tsim tus neeg sawv cev. Lub binder yuav tsum tau muab tshem tawm ua ntej sintering. Txwv tsis pub, tus neeg sawv cev tsim yuav volatilize thaum lub sij hawm nce sintering kub, uas yuav ua rau pores.

Yog tias koj txaus siab rau cov khoom lag luam tungsten carbide thiab xav paub ntau ntxiv thiab cov ntsiab lus, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa US MAIL hauv qab ntawm nplooj ntawv.