I-Vacuum Sintering yemikhiqizo ye-Tungsten Carbide

I-vacuum sintering isho ukuthi impushana, ama-powder compact, noma ezinye izinhlobo zezinto zishiswa ezingeni lokushisa elifanele endaweni yevacuum ukuze kuzuzwe ukuxhumana phakathi kwezinhlayiya ngokufuduka kwe-athomu. I-Sintering ukwenza ama-porous powder compacts anama-alloys anezakhiwo nezakhiwo ezithile.

I-carbide vacuum sintering efakwe usimende iyinqubo yokufaka ngaphansi kuka-101325Pa. I-Sintering ngaphansi kwezimo ze-vacuum kunciphisa kakhulu umthelela ovimbelayo wegesi ye-adsorbed endaweni eyimpushane kanye negesi ezimbotsheni ezivaliwe ekugxilweni. I-Sintering inenzuzo kunqubo yokusabalalisa nokuminyana futhi ingagwema ukusabela phakathi kwensimbi nezinye izici ezisemkhathini phakathi nenqubo yokucwilisa. Thuthukisa ngokuphawulekayo ikhono lokumanzisa lesigaba se-liquid binder kanye nesigaba sensimbi eqinile, kodwa i-vacuum sintering kufanele inake ukuvimbela ukulahleka kokuhwamuka kwe-cobalt.

I-carbide vacuum sintering efakwe usimende ingahlukaniswa izigaba ezine. Kukhona isiteji sokususa i-plasticizer, isiteji sangaphambi kwe-sintering, isiteji sokushisa esishisayo, nesiteji sokupholisa.

Izinzuzo ze-vacuum sintering ye-carbide enosimende yilezi:

1. Yehlisa ukungcoliswa kwemikhiqizo ebangelwa amagesi ayingozi endaweni ezungezile. Isibonelo, kunzima kakhulu ukufinyelela endaweni yamazolo yokususa 40 ℃ ngokuqukethwe kwamanzi e-hydrogen akhiqizwa umshini wokuhlanza ugesi, kodwa akunzima ukuthola izinga elinjalo le-vacuum;

2. I-vacuum iyigesi engasebenzi kahle kakhulu. Lapho amanye amagesi okubuyisela kanye ne-inert engafaneleki, noma izinto ezijwayele ukukhishwa kwe-decarburization kanye ne-carburization, i-vacuum sintering ingasetshenziswa;

3. I-vacuum ingathuthukisa amandla okumanzi we-liquid phase sintering, okuzuzisa ukuncipha nokuthuthukisa ukwakheka kwe-carbide enosimende;

4. I-vacuum isiza ukususa ukungcola noma ama-oxide anjenge-Si, Al, Mg, futhi ihlanze izinto zokwakha;

5. I-vacuum inenzuzo ekunciphiseni igesi ye-adsorbed (igesi eyinsalela kuma-pores kanye nemikhiqizo yegesi yokusabela) futhi inomphumela osobala ekukhuthazeni ukuncipha esigabeni sakamuva se-sintering.

Ngokombono wezomnotho, nakuba imishini ye-vacuum sintering ine-investimenti enkulu kanye nokukhishwa okuphansi kwesithando somlilo ngasinye, ukusetshenziswa kwamandla kuphansi, ngakho-ke izindleko zokugcina i-vacuum ziphansi kakhulu kunezindleko zendawo yokulungiselela. Esigabeni se-liquid se-sintering ngaphansi kwe-vacuum, ukulahlekelwa kwe-volatilization yensimbi ye-binder nakho kuyindaba ebalulekile, engashintshi nje kuphela futhi ithinte ukwakheka kokugcina kanye nesakhiwo se-alloy kodwa futhi kuvimbela inqubo ye-sintering ngokwayo.

Ukukhiqizwa kwe-carbide enosimende kuyinkqubo eqinile. I-ZZBETTER ithatha yonke imininingwane yokukhiqiza njengento ebalulekile, ilawula ngokuqinile ikhwalithi yemikhiqizo ye-carbide enosimende, futhi inikeza izixazululo zezimo zokusebenza ezinzima.

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