Inkqubo yesamente ye-carbide sintering

Ukuculwa kwei-carbide enesamenteyi-liquid phase sintering, oko kukuthi, iqhutywa phantsi kwemeko yokuba isigaba sokudibanisa sikwisigaba solwelo.I-compact ifudunyezwe kwi-1350C-1600C kwi-vacuum furnace.I-shrinkage yomgca we-compact ngexesha le-sintering malunga ne-18%, kwaye i-volume shrinkage i malunga ne-50%.I-shrinkage echanekileyo ixhomekeke kubukhulu be-particle ye-tungsten carbide powder kunye nokubunjwa kwei-carbide enesamente.

Ukuculwa kwei-carbide enesamenteyinkqubo entsonkothileyo yomzimba kunye neekhemikhali, equka ukususwa kweplastizer, ukususwa kwegassing, ukufakwa kweplasticizer, ukufakwa kwegesi, ukufakwa kwesigaba solwelo, ukuxutywa, ukuxinana, ukunyibilika kunye nemvula, njl. njl. phantsi kweemeko ezithile ze-sintering.Ezi meko inkqubo ziyahluka kakhulu ngokuxhomekeke izixhobo sintering ezahlukeneyo.

Carbideivacuum sintering yinkqubo yokutshiza ngaphantsi kwe-1atm (1atm=101325Pa).I-Sintering phantsi kweemeko ze-vacuum inciphisa kakhulu isithintelo soxinaniso ngegesi ye-adsorbed kumphezulu womgubo kunye negesi kwi-pores evaliweyo, ehambelana nenkqubo yokusabalalisa kunye nokuxinana, kwaye inqanda ukusabela phakathi kwesinyithi kunye nezinto ezithile kwi-atmosfera ngexesha lenkqubo ye-sintering.Inokuphucula kakhulu ukumanzi kwesigaba sokudibanisa ulwelo kunye nesigaba esinzima, kodwa kufuneka kuthathelwe ingqalelo ukuthintela ukulahleka kwe-evaporation ye-cobalt ngexesha le-vacuum sintering.I-vacuum sintering inokwahlulwa ngokwezigaba ezine, ezizezi, inqanaba lokususa iplastizer, inqanaba langaphambi kokungena,tungsten carbideinqanaba eliphezulu lobushushu sintering, kunye nenqanaba lokupholisa.