Umgomo We-Metallurgical Powder Sintering

Indlela ye-powder metallurgy iwukwenza izinto zokusetshenziswa zengxubevange zibe yimpushana, bese uxuba lezi zimpushana ngenani elifanele, bese ucindezela futhi uziqinise zibe yisimo esithile. Lawa mabhuloki empushana abekwe endaweni enciphisayo, efana ne-hydrogen, ifudunyezwe, futhi ifakwe i-sintered ukuze yenze ingxubevange. Lena indlela ye-metallurgical ehluke ngokuphelele ezindleleni zangaphambili zokuphonsa.

I-Sintering njengoba kubhekiselwe kukho lapha ingachazwa kalula njengokuphromotha ukuhlangana kwezinhlamvu zensimbi ngesenzo sokucindezela nokushisa. Sifaka inani elithile lokucindezela ku-powder ngokubunjwa kwe-alloying ukuze siyihlanganise. Emazingeni okushisa aphezulu, ama-powders asondelene anamathele komunye nomunye futhi kancane kancane agcwalise ama-voids ukuze enze i-alloy high-density. Izinga lokushisa lokushisa ngalesi sikhathi izinga lokushisa elincibilikayo lengxenye yephuzu elincibilikayo eliphansi ezingxenyeni ze-alloy. Ngakho-ke, ingot ye-alloy is sintered ekushiseni okungaphansi kwendawo yokuncibilika yalo lonke ukwakheka kwempushana. Le ndlela ifana nokuhlanganisa izinqubo ezimbili zokuncibilika nokuphonsa, futhi izakhiwo zayo ziseduze nalezo ze-cast alloys. Kodwa ngokombono we-metallographic, kufanele kube igatsha le-alloy castings.

I-carbide enosimende ikhiqizwa yile ndlela ye-powder metallurgy. Ngokuvamile, izimpushana ezifana ne-tungsten, i-carbon, i-cobalt, i-titanium, ne-cerium zisetshenziselwa ukuxuba inqwaba, bese icindezelwa futhi ifakwe i-sintered ukwenza ama-alloys. Ngakho-ke, umkhiqizo wale nqubo ye-metallurgical ubizwa nangokuthi i-cemented carbide noma i-cemented carbide. Eminyakeni yamuva, izindlela ze-powder metallurgy ziye zathuthuka ngokushesha okukhulu. I-Carbide, ama-alloys aqukethe uwoyela, izinto ezithinta ugesi, amasondo okugaya idayimane anesibopho sensimbi, nemikhiqizo yensimbi yokuhlobisa ekhethekile kukhiqizwa kusetshenziswa le ndlela ye-powder metallurgy.

Uma unentshisekelo emikhiqizweni ye-tungsten carbide futhi ufuna ulwazi olwengeziwe nemininingwane, UNGATHI XHUMANA NATHI ngocingo noma nge-imeyili kwesokunxele, noma SITHUMELE IMEYILI ezansi nekhasi.