Ubuhle be-Silicon Carbide Crucibles ku-High-Temperature Applications

I-carbon silicon crucible, njenge-graphite crucible, ingenye yezinhlobo ezihlukahlukene ze-crucibles futhi inezinzuzo zokusebenza ezinye izigqoko ezingenakuqhathaniswa. Sisebenzisa izinto eziphikisayo zekhwalithi ephezulu kanye namafomula obuchwepheshe athuthukile, sithuthukise isizukulwane esisha sekhwalithi ephezulu ye-carbon-silicon crucibles. Inezici zokuminyana kwenqwaba, ukumelana nokushisa okuphezulu, ukudluliswa kokushisa okusheshayo, ukumelana ne-asidi ne-alkali, amandla okushisa aphezulu, nokumelana ne-oxidation okuqinile. Ukuphila kwayo kwenkonzo kuphindwe kathathu kunezinsimbi ze-clay graphite crucibles. Lezi zinzuzo zokusebenza zenza ama-crucible e-carbon silicon afaneleke kakhulu ezindaweni zokusebenza ezinokushisa okuphezulu kunezikhilimu ze-graphite. Ngakho-ke, ku-metallurgy, casting, imishini, amakhemikhali kanye neminye imikhakha yezimboni, ama-carbon-silicon crucibles asetshenziswa kakhulu ekuncibilikiseni insimbi yensimbi ye-alloy nezinsimbi ezingenayo insimbi kanye nama-alloys azo, futhi anezinzuzo ezinhle zezomnotho.

Kunomehluko othile kanye nokuxhumana phakathi kweziphambano ze-carbon silicon nezinsimbi ezivamile ze-graphite. Okokuqala, ziyafana: Iziphambano ze-Carbon-silicon zenziwa ngesisekelo sezinsimbi ezivamile futhi zisetshenziselwa ukuncibilikisa izinsimbi ezingenayo insimbi njengethusi, i-aluminium, igolide, isiliva, i-lead, ne-zinc. Izindlela zokusebenzisa nezokugcina ziyafana ncamashi, ngakho-ke qaphela umswakama kanye nomthelela lapho ugcina.

Okwesibili, umehluko usezintweni ezisetshenziswa ekukhiqizweni kwe-silicon carbide crucibles, okuyizinto ezisetshenziswa kakhulu ze-silicon carbide. Ngakho-ke, amelana namazinga okushisa aphezulu futhi angakwazi ukumelana namazinga okushisa afika ku-1860 degrees, okuvumela ukusetshenziswa okuqhubekayo ngaphakathi kwalolu banga lokushisa. I-carbon silicon crucible kanye nemikhiqizo yayo ekhiqizwe ngokucindezela kwe-isostatic inezinzuzo ezivelele njengesakhiwo esifanayo, ukuminyana okuphezulu, ukuncipha kwe-sintering ephansi, isivuno esincane sesikhunta, ukusebenza kahle kokukhiqiza okuphezulu, ukuma okuyinkimbinkimbi, imikhiqizo emincane, usayizi omkhulu nonembile, njll. intengo ye-carbon silicon crucible ngokuvamile iphakeme ngokuphindwe kathathu kunaleyo ye-crucible evamile, okuyenza ibe yikhwalithi ephezulu yokukhetha ukuncibilikisa nokuphonsa insimbi.