Ungawaphinda Kanjani Amathuluzi we-Tungsten Carbide

I-Tungsten carbide yaziwa nangokuthi i-tungsten alloy, i-carbide enosimende, i-alloy eqinile, nensimbi eqinile. Amathuluzi e-Tungsten carbide aselokhu ethandwa kakhulu embonini yesimanje kusukela ngawo-1920. Ngokwemvelo, ukugaywa kabusha kwemikhiqizo ye-tungsten carbide kuvela okungadala izindleko namandla amoshekayo. Kungaba khona indlela engokomzimba noma indlela yamakhemikhali. Indlela engokomzimba ngokuvamile iwukudiliza amathuluzi e-tungsten carbide alahliwe abe yizicucu, okunzima ukukubona futhi kubiza kakhulu ngenxa yobunzima obukhulu bamathuluzi e-tungsten carbide. Ngakho-ke, amathuluzi okusika i-tungsten carbide ngokuvamile atholakala ngezindlela zamakhemikhali. Futhi izindlela ezintathu zamakhemikhali zizokwethulwa---ukubuyiswa kwe-zinc, ukubuyiswa kwe-electrolytic, kanye nokukhipha nge-oxidation.

Ukubuyiselwa kweZinc

I-Zinc iwuhlobo lwamakhemikhali anenombolo ye-athomu engu-30, enamaphuzu ancibilikayo angu-419.5℃ kanye namaphoyinti abilayo angu-907℃. Enqubweni yokubuyisela i-zinc, amathuluzi okusika i-tungsten carbide afakwa ku-zinc encibilikisiwe ngaphansi kwendawo engu-650 kuya ku-800℃ kuqala. Le nqubo yenzeka ngegesi engasebenzi esithandweni sikagesi. Ngemva kokuthola i-zinc, i-zinc izochithwa ngaphansi kwezinga lokushisa elingu-700 kuya ku-950 ℃. Njengomphumela wokubuyiselwa kwe-zinc, impushana ebuyisiwe icishe ifane ne-virgin powder ngokulingana.

I-Electrolytic Recovery

Kule nqubo, i-cobalt binder ingancibilika ngokufaka i-electrolyzing izingcezu zamathuluzi okusika i-tungsten carbide ukuze kubuyiselwe i-tungsten carbide. Ngokululama kwe-electrolytic, ngeke kube khona ukungcola ku-tungsten carbide ebuyisiwe.

Ukukhishwa nge-Oxidation

1. I-tungsten carbide scrap kufanele igaywe ngokuxutshwa nama-oxidizing agents ukuze uthole i-sodium tungsten;

2. I-sodium tungsten ingelashwa ngamanzi kanye nesipiliyoni sokuhlunga kanye nemvula ukuze kukhishwe ukungcola ukuze kutholakale i-sodium tungsten ehlanzekile;

3. I-tungsten ye-sodium ehlanzekile ingasabela nge-reagent, engancibilika ku-solvent ephilayo, ukuze uthole izinhlobo ze-tungsten;

4. Faka isixazululo se-ammonia esinamanzi bese uphinda ukhipha, singathola isisombululo se-ammonium poly-tungstate;

5. Kulula ukuthola ikristalu ye-ammonium para-tungstate ngokuhwamulisa isixazululo se-ammonium poly-tungstate;

6. I-Ammonium para-tungstate ingabalwa bese incishiswa nge-hydrogen ukuze kutholwe insimbi ye-tungsten;

7. Ngemva kokungcwaba insimbi ye-tungsten, singathola i-tungsten carbide, engenziwa ibe yimikhiqizo ehlukene ye-tungsten carbide.

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