Cemented carbide yog hais txog cov khoom siv hlau ua los ntawm cov hlau refractory ua matrix thiab cov hlau hloov pauv ua cov khoom siv binder, thiab tom qab ntawd ua los ntawm hmoov metallurgy txoj kev. Nws yog dav siv hauv tsheb, kho mob, tub rog, tiv thaiv lub teb chaws, aerospace, aviation thiab lwm yam teb. Nws yog ib qho tsim nyog sau tseg tias vim muaj ntau hom thiab cov ntsiab lus ntawm cov hlau refractory carbides thiab cov khoom siv binders, cov khoom siv lub cev thiab tshuaj ntawm cov cemented carbides uas tau npaj kuj txawv, thiab lawv cov khoom siv kho tshuab thiab lub cev feem ntau nyob ntawm hom hlau carbide. Raws li cov khoom tseem ceeb sib txawv, cemented carbide tuaj yeem faib ua YT hom thiab YG hom cemented carbide.
Los ntawm qhov kev txhais lus, YT-hom cemented carbide txhais tau tias tungsten-titanium-cobalt-hom cemented carbide, cov khoom tseem ceeb yog tungsten carbide, titanium carbide thiab cobalt, thiab lub npe lag luam yog "YT" ("nyuaj, titanium" ob lo lus Suav Pinyin ua ntej). Nws yog tsim los ntawm cov ntsiab lus nruab nrab ntawm titanium carbide, xws li YT15, uas txhais tau tias cov ntsiab lus nruab nrab ntawm titanium carbide yog 15%, thiab qhov seem yog cemented carbide nrog tungsten carbide thiab cobalt cov ntsiab lus. YG-hom cemented carbide txhais tau tias tungsten-cobalt-hom cemented carbide. Cov khoom tseem ceeb yog tungsten carbide thiab cobalt. Piv txwv li, YG6 txhais tau tias tungsten-cobalt carbide nrog cov ntsiab lus cobalt nruab nrab ntawm 6% thiab qhov seem yog tungsten carbide.
Los ntawm qhov pom ntawm kev ua tau zoo, ob qho tib si YT thiab YG cemented carbides muaj kev sib tsoo zoo, lub zog khoov thiab lub zog tawv. Nws yuav tsum tau sau tseg tias qhov kev tiv thaiv hnav thiab thermal conductivity ntawm YT-hom cemented carbide thiab YG-hom cemented carbide yog qhov sib txawv. Tus thawj muaj kev tiv thaiv hnav zoo dua thiab thermal conductivity tsis zoo, thaum tus tom kawg muaj kev tiv thaiv hnav tsis zoo thiab thermal conductivity. nws yog qhov zoo. Los ntawm qhov pom ntawm daim ntawv thov, YT hom cemented carbide yog qhov tsim nyog rau kev tig tsis sib xws, kev npaj tsis sib xws, semi-finishing, milling tsis sib xws thiab drilling ntawm qhov chaw tsis sib xws thaum qhov tsis sib xws ntawm cov hlau carbon thiab alloy hlau raug txiav intermittently; YG hom hard alloy Nws yog qhov tsim nyog rau kev tig tsis sib xws hauv kev txiav txuas ntxiv ntawm cov hlau cam khwb cia, cov hlau tsis yog ferrous thiab lawv cov alloys thiab cov ntaub ntawv tsis yog hlau, semi-finishing thiab finishing hauv kev txiav intermittently.
Muaj ntau tshaj 50 lub teb chaws hauv ntiaj teb uas tsim cov cemented carbide, nrog rau tag nrho cov zis ntawm 27,000-28,000t-. Cov neeg tsim khoom tseem ceeb yog Tebchaws Meskas, Russia, Sweden, Tuam Tshoj, Lub Tebchaws Yelemees, Nyiv, United Kingdom, Fabkis, thiab lwm yam. Lub ntiaj teb kev lag luam cemented carbide yog qhov puv nkaus. , kev sib tw ua lag luam yog qhov hnyav heev. Tuam Tshoj txoj kev lag luam cemented carbide pib tsim cov duab thaum xyoo 1950s. Txij li xyoo 1960 txog xyoo 1970s, Tuam Tshoj txoj kev lag luam cemented carbide tau tsim kho sai. Thaum ntxov xyoo 1990s, Tuam Tshoj tag nrho cov peev xwm tsim khoom ntawm cemented carbide tau txog 6000t, thiab tag nrho cov zis ntawm cemented carbide tau txog 5000t, thib ob tsuas yog hauv Lavxias thiab Tebchaws Meskas, nws qeb thib peb hauv ntiaj teb.
Lub sijhawm tshaj tawm: Plaub Hlis-19-2022
