Tungsten Carbide Blades
Ndi kusankha koyenera kwambiri, masamba a submicron grain size tungsten carbide amatha kunoledwa mpaka lumo lopanda mpumulo wachilengedwe womwe umagwirizanitsidwa ndi carbide wamba. Ngakhale kuti sichitha kugwedezeka ngati chitsulo, carbide imakhala yosamva kuvala, ndi kuuma kofanana ndi Rc 75-80. Moyo wa tsamba la zitsulo zosachepera 50X ukhoza kuyembekezeredwa ngati kupewedwa ndi kusweka.
Monga momwe zimakhalira posankha zitsulo, kusankha giredi yabwino kwambiri ya tungsten carbide (WC) ndi njira yovuta yomwe imaphatikizapo kusankha kosokoneza pakati pa kukana kuvala ndi kulimba / kugwedezeka. Simenti tungsten carbide amapangidwa ndi sintering (pa kutentha kwambiri) osakaniza tungsten carbide ufa ndi ufa cobalt (Co), chitsulo ductile amene amagwira ntchito ngati "binder" kwa tinthu tolimba kwambiri tungsten carbide. Kutentha kwa sintering sikumakhudza momwe zigawo za 2 zikuyendera, koma zimapangitsa kuti cobalt ifike pafupi ndi madzi amadzimadzi ndikukhala ngati encapsulating glue matrix a WC particles (omwe sakhudzidwa ndi kutentha). Awiri magawo, ndicho chiŵerengero cha Cobalt kuti WC ndi WC tinthu kukula, kwambiri kulamulira chochuluka zakuthupi zimatha chifukwa "cemented tungsten carbide" chidutswa.
Kufotokozera kukula kwa tinthu tating'ono ta WC ndi kuchuluka kwa Cobalt kudzapereka gawo losamva kugwedezeka (komanso mphamvu yayikulu). Kukula kwanjere za WC (kotero, malo ochulukirapo a WC omwe amayenera kuphimbidwa ndi Cobalt) komanso Cobalt yocheperako yomwe imagwiritsidwa ntchito, gawo lotsatira limakhala lolimba komanso losavala. Kuti mugwiritse ntchito bwino kwambiri kuchokera ku carbide ngati tsamba latsamba, ndikofunikira kupewa kulephera kwanthawi yayitali komwe kumayambitsidwa ndi kudulidwa kapena kusweka, ndikutsimikizira kukana koyenera kuvala.
Monga chinthu chothandiza, kupanga nsonga zakuthwa kwambiri, zopindika kwambiri kumapangitsa kuti carbide yabwino igwiritsidwe ntchito popanga masamba (kuteteza ma nick akulu ndi m'mphepete). Poganizira kugwiritsa ntchito carbide yomwe ili ndi kukula kwa tirigu wa 1 micron kapena kuchepera, ntchito ya tsamba la carbide; Chifukwa chake, imakhudzidwa kwambiri ndi % ya Cobalt ndi m'mphepete mwa geometry yotchulidwa. Kudula mapulogalamu omwe amaphatikizapo kugwedezeka kwapakati kapena kugwedezeka kwakukulu kumayendetsedwa bwino potchula 12-15 peresenti ya Cobalt ndi geometry ya m'mphepete yomwe ili ndi mbali ya 40º. Mapulogalamu omwe amaphatikizapo katundu wopepuka komanso kuyika ndalama zambiri pa moyo wautali wa tsamba ndi omwe akufuna kukhala ndi carbide yomwe ili ndi 6-9 peresenti ya cobalt ndipo imakhala ndi mbali yapakati pa 30-35º.
HUAXIN CARBIDE ili wokonzeka kukuthandizani kuti mukwaniritse bwino zinthu zomwe zingakuthandizeni kuti muzitha kuchita bwino kwambiri pamasamba anu a carbide.
HUAXIN CARBIDE imapereka zosankha zokhala ndi lumo la carbide
Nthawi yotumiza: Mar-18-2022
