Dab tsi yog tungsten carbide?

Tungsten carbideis tseem hu ua cemented carbide. tungsten carbide yog ib yam khoom siv hlau nrog refractory tungsten (W) cov khoom siv micron hmoov ua cov khoom tseem ceeb, feem ntau nyob rau hauv kev faib ua feem ntawm 70% -97% ntawm tag nrho qhov hnyav, thiab Cobalt (Co), Nickel (Ni), los yog Molybdenum (Mo) raws li tus binder.

Tam sim no, W hauv daim ntawv ntawmWCFeem ntau yog siv hauv kev tsim cov cemented carbide.tungstencarbide yog cov khoom tsim los ntawm kev sib koom ua ke nyuaj heev ib qho WC hais nyob rau hauv ib qho nyuaj cobalt (Co) binder matrix los ntawm cov kua-theem sintering. Thaum kub kubs, WC yog yaj nyob rau hauv cobalt heev, thiab kua cobalt binder tseem tuaj yeem ua rau WC nyob rau hauv zoo wettability, uas ua rau kom zoo compactness thiab non-pore qauv nyob rau hauv cov txheej txheem ntawm cov kua-theem sintering. Yog li, tungsten carbide muaj cov khoom zoo heev, xws li:

* siab hardness:Mohs’hardness yog tsuas yog siv nyob rau hauv cov ntxhia kev faib tawm. Morse nplai yog los ntawm1rau 10(Tus lej loj dua, qhov nyuaj dua).Mohs hardness ntawm tungsten carbide yog9 rau 9.5,Nws boasts ib theem ntawm hardness thib ob rau pob zeb diamonduas hardness yog 10.

* hnav tsis kam: Qhov siab dua qhov hardness, qhov zoo dua qhov hnav tsis kam ntawm tungsten carbide

* kub tsis kam: Txij li thaum nws muaj lub zog siab ntawm qhov kub thiab txias tsis tshua muaj thermal expansion coefficient, nws yog ib qho khoom siv zoo tshaj plaws rau kev txiav cov cuab yeej siv rau hauv qhov chaw kub thiab kub ceev.

*Corrosion kuj: Tungsten carbide yog ib yam khoom ruaj khov heev, uas tsis tuaj yeem soluble hauv dej, hydrochloric acid los yog sulfuric acid. Tsis tas li ntawd, nws tsis zoo li yuav tsim ib qho kev daws teeb meem nrog ntau lub ntsiab lus, thiab nws tuaj yeem tswj cov yam ntxwv ruaj khov txawm tias nyob rau hauv ib puag ncig hnyav.

Tshwj xeeb tshaj yog nws cov hardness siab thiab kub tsis kam, uas tseem nyob twj ywm tsis hloov txawm nyob rau ntawm 1000 ℃. Nrog rau ntau qhov zoo, tungsten carbide tuaj yeem siv los tsim cov cuab yeej txiav, riam, cov cuab yeej drilling, thiab cov khoom hnav-tiv taus, thiab nws kuj tau siv dav hauv kev lag luam tub rog, aerospace, mechanical processing, metallurgy, roj av drilling, mining cuab yeej, hluav taws xob. kev sib txuas lus, kev tsim kho, thiab lwm yam. Yog vim li cas nws thiaj li hu ua "cov hniav kev lag luam".

Tungsten carbide yog 2-3 zaug nruj li cov hlau thiab muaj lub zog compressive tshaj tag nrho cov paub melted, cam khwb cia, thiab forged hlau. Nws yog qhov zoo heev rau deformation thiab ua kom nws ruaj khov ntawm ob qho tib si txias thiab kub kub. Nws qhov cuam tshuam tsis kam, tawv, thiab tsis kam rau galling / abrasions / yaig yog qhov tshwj xeeb, kav ntev txog 100 npaug ntev dua li cov hlau hauv cov xwm txheej hnyav. nws ua cua sov sai dua li cov cuab yeej steel. Tungsten carbidetseem tuaj yeem raug cam khwb cia thiab nrawm nrawm los tsim cov qauv siv lead ua nyuaj heev.

Nrog txoj kev loj hlob ntawmtusdownstream kev lag luam, kev lag luam thov rau tungsten carbide yog nce. Thiab nyob rau hauv lub neej yav tom ntej, kev tsim cov cuab yeej siv cuab yeej cuab tam high-tech, kev nce qib ntawm kev tshawb fawb & thev naus laus zis, thiab kev loj hlob sai ntawm nuclear zog yuav ua rau muaj kev xav tau ntau rau cov khoom siv cemented carbide nrog cov ntsiab lus technology thiab siab.-zoo stability.