Terminology of Hard Alloy(2)

Decarbonization

Ka mor'a ho tšela carbide e entsoeng ka samente, carbon content ha e lekane.

Ha sehlahisoa se se na carbonized, lisele li fetoha ho tloha ho WC-Co ho ea ho W2CCo2 kapa W3CCo3. Likahare tsa khabone tse loketseng tsa tungsten carbide ka har'a carbide e entsoeng ka samente (WC) ke 6.13% ka boima ba 'mele. Ha carbon content e le tlase haholo, ho tla ba le sebopeho se hlakileng sa khase ea khase sehlahisoa. Decarburization e fokotsa haholo matla a tungsten carbide samente mme e etsa hore e be brittle le ho feta.

Carburization

E bua ka khabone e feteletseng ka mor'a ho tšela carbide e entsoeng ka samente. Likahare tsa khabone tse loketseng tsa tungsten carbide ka har'a carbide e entsoeng ka samente (WC) ke 6.13% ka boima ba 'mele. Ha lihlahisoa tsa carbon li phahame haholo, ho tla hlaha sebopeho sa carburized se phatlalalitsoeng sehlahisoa. Ho tla ba le ho fetella ho hoholo ha carbon ea mahala sehlahisoa. Khabone ea mahala e fokotsa haholo matla le ho se mamelle ha tungsten carbide. Li-pores tsa mofuta oa C ha li lemoha mohato li bontša tekanyo ea carburization.

Ho qobella

Matla a khoheli ke masala a matla a makenete a lekantsoeng ka ho holisa thepa ea makenete ka har'a carbide e samenteng ho ea sebakeng se tletseng ebe joale e e tlosa. Ho na le kamano e tobileng pakeng tsa karolelano ea boholo ba karoloana ea karolo ea cemented carbide le coercivity. The fineer the average particle size of the magnetized phase, the high coercivity value.

Matla a makenete

Cobalt (Co) ke makenete, ha tungsten carbide (WC), titanium carbide (TiC), le tantalum carbide (TaC) ha e na matla a makenete. Ka hona, ka ho qala ka ho lekanya boleng ba cobalt ea matla a khoheli nthong ebe o e bapisa le boleng bo ts'oanang ba sampole e hloekileng ea cobalt, kaha matla a khoheli a angoa ke likarolo tsa alloying, boemo ba motsoako oa karolo ea cobalt bo ka fumanoa. . Liphetoho leha e le life tsa mohato oa ho kopanya li ka lekanyetsoa. Kaha khabone e na le karolo ea bohlokoa taolong ea sebopeho, mokhoa ona o ka sebelisoa ho fumana liphapang tse tsoang ho boleng ba khabone e loketseng. Maemo a tlase a matla a khoheli a bonts'a litaba tsa khabone e tlase le monyetla oa ho tlosa carburization. Maemo a phahameng a matla a khoheli a bonts'a boteng ba khabone ea mahala le carburization.

Letamo la Cobalt

Ka mor'a ho tšela tšepe ea tšepe ea cobalt (Co) le tungsten carbide, ho ka 'na ha thehoa cobalt e feteletseng, e leng ntho e tsejoang e le "cobalt pooling". Sena ke haholo-holo hobane nakong ea ts'ebetso ea HIP (Pressure Sintering), mocheso oa sintering o tlaase haholo 'me thepa e etsa hore ho be le boima bo sa lekaneng, kapa li-pores li tletse cobalt. Fumana boholo ba letamo la cobalt ka ho bapisa lifoto tsa metallographic. Ho ba teng ha letamo la cobalt ka carbide e entsoeng ka samente ho ama ho hanyetsa ho apara le matla a thepa.

Haeba u thahasella lihlahisoa tsa tungsten carbide 'me u batla boitsebiso bo eketsehileng le lintlha tse ling, u ka RE THUTA ka mohala kapa ka poso ka ho le letšehali, kapa U RE THUSE MAIL botlaaseng ba leqephe.