Tungsten carbideyog ib qho kev sib xyaw ua ke ntawm tungsten thiab carbon.Nws hardness zoo ib yam li pob zeb diamond.Nws cov khoom siv tshuaj muaj zog heev thiab nws nrov heev nyob rau hauv ntau yam kev lag luam.Hnub no, Sidi Xiaobian yuav tham nrog koj txog kev tsim cov tungsten carbide.
Raws li cov kev xav tau ntawmtungsten carbide cov menyuamqhov loj me, qhov sib txawv ntawm tungsten carbide yog siv rau ntau lub hom phiaj.Carbide tej cuab yeej, xws li txiav tshuab hniav V-shaped txiav cov cuab yeej, zoo alloy nrog ultrafine subfine tungsten carbide hais.Coarse alloy siv nruab nrab particle tungsten carbide;Cov alloy rau lub ntiajteb txawj nqus txiav thiab hnyav txiav yog ua los ntawm nruab nrab coarse tungsten carbide.Cov pob zeb siv rau cov cuab yeej siv tsuas muaj qhov nyuaj siab thiab cuam tshuam cov loads thiab siv coarse tungsten carbide.Cov pob zeb me me, kev cuam tshuam me me, nrog cov khoom nruab nrab ntawm tungsten carbide raws li cov khoom siv raw khoom hnav-tiv taus;Hauv kev hais txog kev hnav tsis kam, siab ua haujlwm thiab qhov smoothness, ultrafine ultrafine nruab nrab particle tungsten carbide yog siv los ua raw khoom.Cov cuab yeej cuam tshuam feem ntau yog siv cov khoom nruab nrab thiab ntxhib tungsten carbide raw khoom.
Tungsten carbide muaj qhov theoretical carbon ntsiab lus ntawm 6.128% (50% atomic).Thaum cov ntsiab lus carbon ntawm tungsten carbide ntau dua li cov ntsiab lus ntawm cov ntsiab lus, cov pa roj carbon dawb tshwm hauv tungsten carbide.Lub xub ntiag ntawm cov pa roj carbon monoxide ua rau cov khoom nyob ib puag ncig tungsten carbide loj tuaj thaum lub sij hawm sintering, ua rau cov cemented carbide tsis sib xws.Tungsten carbide feem ntau xav tau cov pa roj carbon ntau (≥6.07%) thiab cov pa roj carbon dawb (≤0.05%), thaum cov pa roj carbon tag nrho nyob ntawm cov txheej txheem tsim khoom thiab kev siv ntau yam ntawm cemented carbide.
Raws li ib txwm muaj, tag nrho cov pa roj carbon monoxide sintering tungsten carbide los ntawm txoj kev paraffin feem ntau yog txiav txim siab los ntawm tag nrho cov pa oxygen ntawm briquette ua ntej sintering.Ib feem ntawm cov ntsiab lus oxygen tau nce los ntawm 0.75 ib feem, uas yog, tag nrho cov pa roj carbon monoxide ntawm tungsten carbide = 6.13% + oxygen cov ntsiab lus % × 0.75 (xav tias muaj qhov nruab nrab nruab nrab hauv sintering rauv, qhov tseeb, tag nrho cov pa roj carbon monoxide ntawm tungsten carbide hauv . feem ntau lub tshuab nqus tsev vacuum yog tsawg dua tus nqi suav) [4] Cov ntsiab lus carbon tag nrho ntawm Tuam Tshoj tus tungsten carbide tuaj yeem muab faib ua peb txheej txheem paraffin.
Nqus sintered tungsten carbide muaj tag nrho cov ntsiab lus ntawm cov pa roj carbon monoxide ntawm 6.18 ± 0.03% (cov pa roj dawb yuav nce ntxiv).Tag nrho cov ntsiab lus ntawm paraffin wax hydrogen sintering tungsten carbide yog 6.13 ± 0.03%.Tag nrho cov ntsiab lus ntawm roj hmab hydrogen sintering tungsten carbide yog 5.90 ± 0.03%.Cov txheej txheem no qee zaum hloov.Yog li ntawd, tag nrho cov ntsiab lus carbon ntawm tungsten carbide yog txiav txim raws li tej yam kev mob.
Post lub sij hawm: May-04-2023
