Cobalt mu Cemented Carbide Process

Masiku ano, chifukwa carbide yopangidwa ndi simenti imakhala yolimba kwambiri, kukana kuvala, ndi zotanuka modulus, zida za carbide zokhala ndi simenti zimagwira ntchito yofunika kwambiri mukamayang'ana zida zamakono, zida zotha kuvala, zida zotentha kwambiri, ndi zida zolimbana ndi dzimbiri. Popeza Co ali wettability wabwino ndi zomatira kwa WC ndi TiC, chimagwiritsidwa ntchito ngati wothandizila adhesion mu makampani monga zida kudula chida. Kugwiritsa ntchito Co ngati cholumikizira kumapangitsa kuti carbide ya simenti ikhale yamphamvu kwambiri, kuuma kwakukulu, komanso kukana kuvala kwambiri.

Komabe, chifukwa cha kukwera mtengo kwazitsulo za cobalt komanso kuchepa kwa zinthu, anthu akhala akuyang'ana zolowa m'malo mwa zitsulo za cobalt. Zomwe zakhala zikugwiritsidwa ntchito masiku ano ndi faifi tambala ndi ayironi. Tsoka ilo, kugwiritsa ntchito ufa wachitsulo ngati cholumikizira nthawi zambiri kumakhala ndi mphamvu zochepa zamakina. Kugwiritsa ntchito faifi tambala monga wothandizila carbide adhesion katundu thupi ndi makina a carbide simenti si kwabwino ngati amene amagwiritsa cobalt monga adhesion agent. Kuwongolera njira kumakhala kovuta ngati mukugwiritsa ntchito faifi tambala monga cholumikizira.

Ntchito ya cobalt mu simenti ya carbide ndi ngati zitsulo zomatira. Cobalt imatha kukhudza kulimba kwa carbide yopangidwa ndi simenti kudzera mu mphamvu yake yopindika ya pulasitiki pa kutentha kwapakati. Simenti carbide amapangidwa ndi sintering ndondomeko. Cobalt ndi faifi tambala zimakhala zida zomatira padziko lonse lapansi za simenti ya carbide. Cobalt imakhudza kwambiri kupanga simenti ya carbide, ndipo pafupifupi 90% ya ma carbide okhala ndi simenti amagwiritsa ntchito cobalt ngati zomatira.

Carbide yokhala ndi simenti imapangidwa ndi ma carbides olimba komanso zitsulo zofewa zomatira. Carbide imapereka mphamvu yolimbana ndi katundu ndi kuvala kukana kwa aloyi, ndipo wothandizira wothandizira amapereka mphamvu yopunduka mupulasitiki kutentha. Impact kuuma kwa carbide. Kuwonetsetsa kuti zinthu za sintered zili bwino, zomatira zimagwira ntchito yofunika kwambiri pakunyowetsa carbide yomangidwa.

Mndandanda wa tungsten-cobalt carbides umagwiritsidwa ntchito podula maupangiri a zida ndi zida zamigodi zomwe zimafunika kugwira ntchito pamalo olimba kwambiri. Zida zina zopangira opaleshoni zokhazikika komanso maginito okhazikika amapangidwanso ndi ma aloyi a cobalt.

The ductility ndi kulimba kwa zinthu simenti carbide akhoza kuperekedwa ndi wothandizira adhesion. Pa nthawi yomweyo, wothandizira adhesion amapereka mphamvu kwa mkulu-kusungunuka simenti carbide akhoza kupangidwa m'zigawo kutentha kwambiri pansi pa malo osungunuka.

Chomamatira chabwino kwambiri chiyenera kunyowetsa malo osungunuka a carbide opangidwa ndi simenti. Chitsulo, cobalt, ndi faifi tambala zonse zimatha kukwaniritsa zofunikira pakugwiritsa ntchito bwino.

Ngati muli ndi chidwi ndi zinthu za tungsten carbide ndipo mukufuna zambiri ndi zambiri, mutha KULUMIKIZANA NAFE pa lamya kapena makalata kumanzere, kapena TITUMIZANI MAIME pansi pa tsamba.