Cobalt hauv Cemented Carbide txheej txheem

Niaj hnub no, vim tias cemented carbide muaj qhov tawv tawv, hnav tsis kam, thiab elastic modulus, cov cuab yeej cemented carbide ua lub luag haujlwm tseem ceeb thaum koj tab tom nrhiav cov khoom siv niaj hnub, cov ntaub ntawv hnav-tiv taus, cov ntaub ntawv kub, thiab cov khoom siv corrosion-resistant. Txij li thaum Co muaj qhov zoo wettability thiab nplaum rau WC thiab TiC, nws yog dav siv los ua tus neeg sawv cev adhesion hauv kev lag luam raws li cov khoom siv txiav. Siv Co raws li tus neeg sawv cev adhesion ua rau cov cemented carbide qhov zoo ntawm lub zog siab, siab hardness, thiab siab hnav tsis kam.

Txawm li cas los xij, vim tus nqi siab ntawm cobalt hlau thiab tsis tshua muaj peev txheej, tib neeg tau nrhiav kev hloov pauv rau cobalt hlau. Cov kev hloov pauv uas tau siv tam sim no yog npib tsib xee thiab hlau. Hmoov tsis zoo, siv cov hmoov hlau ua tus neeg sawv cev adhesion feem ntau muaj lub zog tsis muaj zog. Kev siv cov npib tsib xee ntshiab ua cov carbide adhesion tus neeg saib xyuas lub cev thiab cov khoom siv ntawm cov cemented carbide tsis zoo li cov neeg siv cobalt ua tus neeg sawv cev adhesion. Cov txheej txheem tswj kuj tseem nyuaj yog tias siv cov nickel ntshiab ua tus neeg sawv cev adhesion.

Lub luag haujlwm ntawm cobalt hauv cemented carbide yog ib qho adhesion tus neeg sawv cev hlau. Cobalt tuaj yeem cuam tshuam qhov nyuaj ntawm cemented carbide los ntawm nws cov yas deformation muaj peev xwm ntawm chav tsev kub. Cemented carbide yog tsim los ntawm cov txheej txheem sintering. Cobalt thiab npib tsib xee dhau los ua tus neeg sawv cev thoob ntiaj teb ntawm cemented carbide. Cobalt muaj qhov cuam tshuam tseem ceeb ntawm kev tsim cov cemented carbide, thiab nyob ib ncig ntawm 90% ntawm cov cemented carbides siv cobalt ua tus neeg sawv cev adhesion.

Cemented carbide yog tsim los ntawm cov tawv carbide thiab mos adhesion tus neeg sawv cev hlau. Carbide muab lub peev xwm los tiv thaiv load thiab hnav tsis kam rau alloy, thiab tus neeg sawv cev adhesion muab lub peev xwm rau plastically deform ntawm chav tsev kub. Impact toughness ntawm carbide. Txhawm rau kom paub tseeb tias cov khoom sintered nyob rau hauv qhov zoo, cov neeg ua haujlwm adhesion ua lub luag haujlwm tseem ceeb hauv kev ntub cov cemented carbide.

A Series ntawm tungsten-cobalt carbides yog siv rau kev txiav cov lus qhia thiab cov cuab yeej siv mining uas yuav tsum tau ua haujlwm ntawm qhov chaw hardness siab. Qee cov cuab yeej siv phais mob ntev thiab cov hlau nplaum ruaj khov kuj yog ua los ntawm cobalt alloys.

Lub ductility thiab toughness ntawm cov khoom cemented carbide tuaj yeem muab los ntawm tus neeg sawv cev adhesion. Nyob rau tib lub sijhawm, tus neeg sawv cev adhesion muab lub peev xwm rau high-melting cemented carbide tuaj yeem ua rau hauv qhov chaw ntawm qhov kub thiab txias qis dua qhov melting point.

Qhov zoo tshaj plaws adhesion tus neeg sawv cev yuav tsum muaj peev xwm ua kom ntub tag nrho qhov siab melting point ntawm cemented carbide. Hlau, cobalt, thiab npib tsib xee tag nrho tuaj yeem ua tau raws li qhov yuav tsum tau ua rau tus neeg ua haujlwm adhesion zoo.

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.