Njira yopangira sintering carbide sintering

Kuyimba kwasimenti carbidendi madzi gawo sintering, ndiye kuti, ikuchitika pansi pa chikhalidwe kuti chomangira gawo ali madzi gawo.Chophatikizikacho chimatenthedwa mpaka 1350C-1600C mung'anjo ya vacuum.Kuchepa kwa mzere wophatikizika panthawi ya sintering ndi pafupifupi 18%, ndipo kuchepa kwa voliyumu ndi pafupifupi 50%.The shrinkage yeniyeni zimadalira tinthu kukula tungsten carbide ufa ndi zikuchokerasimenti carbide.

Kuyimba kwasimenti carbidendi zovuta thupi ndi mankhwala ndondomeko, monga plasticizer kuchotsa, degassing, olimba gawo sintering, madzi gawo sintering, alloying, kachulukidwe, kuvunda ndi mpweya, etc. The yaying'ono mafomu mankhwala ndi zina mankhwala zikuchokera, dongosolo dongosolo, ntchito ndi mawonekedwe ndi kukula pamikhalidwe yeniyeni ya sintering.Izi ndondomeko zinthu zimasiyana kwambiri kutengera zosiyanasiyana sintering zipangizo.

Carbidevacuum sintering ndi njira ya sintering osachepera 1atm (1atm=101325Pa).Sintering pansi pa vacuum zinthu kwambiri amachepetsa chotchinga kachulukidwe ndi mpweya adsorbed pa ufa pamwamba ndi mpweya watsekedwa pores, amene amathandiza kufalitsa ndondomeko ndi kachulukidwe, ndipo amapewa anachita pakati zitsulo ndi zinthu zina mu mlengalenga pa ndondomeko sintering.Itha kusintha kwambiri kunyowa kwa gawo lolumikizana ndi madzi ndi gawo lolimba, koma kusamala kuyenera kuchitidwa kuti mupewe kutayika kwa cobalt panthawi ya vacuum sintering.Vacuum sintering amatha kugawidwa m'magawo anayi, omwe ndi siteji yochotsa plasticizer, pre-sintering siteji,tungsten carbidemkulu-kutentha sintering siteji, ndi siteji yozizira.