Vim li cas tungsten carbide yog cov khoom siv zoo tshaj plaws

Tungsten carbide(WC) yog cov khoom sib xyaw ua ke ntawm cov hlau refractory tungsten thiab cov pa roj carbon uas tsis yog xim hlau, uas muaj cov yam ntxwv ntawm kev kub ceev, siab melting point, siab zog, siab hardness, kub tsis kam, corrosion kuj, hnav tsis kam thiab zoo hluav taws xob thiab thermal conductivity. , yog li nws yog cov khoom siv carbide zoo tagnrho.

Txawm li cas los xij, vim qhov teeb meem ntawm brittleness thiab tsis zoo toughness ntawm yooj yim WC hmoov, nws yog ib qho tsim nyog yuav tsum tau ntxiv cov khoom tsim nyog xws li cobalt (Co), npib tsib xee (Ni), chromium (Cr), molybdenum (Mo), titanium ( Ti), tooj liab (Cu) thiab lwm yam khoom thaum ua cov cuab yeej ua haujlwm siab carbide.

Tshwj xeeb, nrog WC hmoov raws li cov theem nyuaj thiab Co raws li lub binder theem yog tsim nyog rau cov cuab yeej txiav.Nws muaj cov thermal conductivity zoo, uas yog qhov zoo rau kev txiav cov cua kub dissipation los ntawm lub hau ntawm lub cuab yeej, txo qhov kub thiab txias thiab tsis txhob overheating thiab softening ntawm lub cuab yeej;nws muaj zog flexural siab thiab cuam tshuam toughness, uas tuaj yeem txo qhov tshwm sim ntawm chipping thaum txiav;nws muaj kev txiav zoo heev (ntau tshaj li cov hlau nrawm), thiab tuaj yeem zom cov ntug ntse.

cemented carbide hniavnrog WC hmoov raws li cov theem nyuaj thiab Ni raws li lub tsev cog khoom theem yog tsim nyog rau corrosion resistant qhov chaw.Nws cov kev tiv thaiv corrosion muaj zog dua li cov cuab yeej tungsten thiab cobalt carbide, ua rau nws tsim nyog rau kev siv hauv ib puag ncig nrog ntau yam xov xwm corrosive.Tsis tas li ntawd, WC-Ni cemented carbide seals kuj tsim nyog rau kev siv hauv qhov kub thiab txias, kub, nqus thiab siab.

Cov khoom tsim los ntawm WC, TiC thiab Co muaj cov yam ntxwv ntawm siab hardness, zoo tshav kub tsis kam, siab compressive zog, zoo oxidation kuj, tsis zoo thermal conductivity thiab thiaj li nyob rau, uas yog haum rau ua hlau.

Nws yuav tsum tau muab sau tseg hais tias lub cev qhia tshwj xeeb ntawmnyuaj alloyyuav hloov nrog qhov sib txawv ntawm cov khoom siv raw.Yog hais tias ib txheej los yog ntau txheej ntawm carbide, carbide thiab lwm yam refractory nyuaj tebchaw yog sprayed rau saum npoo ntawm lub hard alloy, lub siab coj kuj thiab siab toughness ntawm cov alloy yuav ntxiv tshaj, yog li nws yog haum rau high-ceev txiav. .