Ungawakha kanjani amashubhu omlilo we-silicon carbide?

Indlela yokwenzaamashubhu omlilo we-silicon carbide? Okokuqala, sidinga ukukuqinisekisa lokhoi-silicon carbideyiyona nto eyinhloko eluhlaza, futhi i-silicon carbide yakheka ngemva kokushisa okuphezulu. Impahla etholiwe inokumelana nokushisa okuphezulu, ukuguquguquka kwe-thermal okusheshayo, amandla aphezulu, ubulukhuni obukhulu, ukumelana nokugqokwa okuhle, ukumelana nokushaqeka okuhle kokushisa, ukuhanjiswa okuhle kwe-thermal, ukumelana okuhle kwe-oxidation neminye imisebenzi emihle kakhulu.

Uma usufakwe isembozo esikhethekile sokushisa okuphezulu kokushisa okuphezulu, gwema isisombululo sensimbi sokugqwala kwesici sokushisa kagesi, ngaleyo ndlela uvikele isici sokushisa kagesi. Izinkomba zayo ezihlukahlukene zingcono kune-amashubhu omlilo we-silicon carbideyemikhiqizo ehlukahlukene ye-graphite, futhi ine-conductivity enhle yokushisa kanye nokumelana ne-oxidation. Ngokuthuthukisa inqubo yokukhiqiza ifilimu ye-electrolyte ye-zirconia esekelwe, ochwepheshe banciphisa izinga lokushisa lokusebenza nezindleko zokukhiqiza lezi zinto, futhi balwela ukufeza ukuthuthukiswa kwezimboni, okubuye kube isiqondiso esisha esibalulekile se-silicon carbide esikhathini esizayo. I-ionic conductivity ephezulu, ukuzinza okuhle kwamakhemikhali kanye nokuzinza kwesakhiwo se-zirconia ceramics kufundwe ngempumelelo futhi kwasetshenziswa kabanzi njengezinto ze-electrolyte.

Izakhiwo kanye nezindlela sintering ofamashubhu omlilo we-silicon carbideziyethulwa. I-Silicon carbide furnace tube ayigcini nje ngokuba nezici zamandla okushisa aphezulu kanye nokumelana nokukhasa. Ukumelana nokugqoka, amandla okushisa kwegumbi, i-coefficient ephansi yokungqubuzana, ukumelana nokugqwala. Ingasebenza emazingeni okushisa angu-1600 futhi iyaziwa ukuthi inokumelana ne-oxidation ezintweni. I-Silicon carbide furnace tube inobubi bokuqina okuphezulu kanye nokuqina kokuphuka okuphansi. Ekukhiqizeni kamuva, ukuqina namandla kungathuthukiswa ngokungeza i-fiber, i-whisker kanye nezinhlayiyana.

I-Silicon carbide iyinto enhle kakhulu ekwazi ukumelana nokugqwala, singayisebenzisa ukwenza amashubhu esithandweni somlilo neminye imikhiqizo. Lapho i-silicon carbide isetshenziselwa ukukhiqiza amashubhu esithandweni somlilo, kunezindlela ezihlukahlukene ze-sintering ezifana nokushiswa okuphansi, ukushisa okuphezulu, ukukhiqiza okuvaliwe, okungakhethwa ngokuvumelana nendawo yangempela yokucubungula ukuze kuthuthukiswe ukusebenza kahle. Ukucindezela okushisayo nokushisa okuphezulu kokucindezela kwe-isostatic kungaveza ukuminyana okuphezului-silicon carbide furnace tube, izinga lokushisa le-sintering phakathi kuka-150 ~ 2100℃. I-silicon carbide inzima ukwenza izimo eziyinkimbinkimbi nemikhiqizo ebiza kakhulu. I-silicon carbide reaction sintering i-silicon kanye ne-graphite powder engxenyeni ethile yohlaza olushisiwe ukukhiqiza -SiC. Le ndlela ikhiqiza i-silicon carbide enezinga lokushisa eliphansi lomlilo. Kodwa-ke, ezinye ze-silicon yamahhala zihlala ku-billet eluhlaza, ngakho-ke umenzi we-lining ukholelwa ukuthi lokhu kunciphisa izakhiwo zemishini yokushisa okuphezulu kanye nokusetshenziswa kwayo kuma-acids aqinile nezisekelo.

Mayelana nokunyakaza kwenqubo ye-silicon carbide furnace tube, ngemva kokukhiqizwa kweshubhu le-silicon carbide furnace, uma lidluliselwa ngaphandle kwe-slot yenqubo, akuyona into engaphezu kwenkinga elimaza kakhulu. Bungaqinisekiswa kanjani ubuqotho bayo endaweni enjalo. Ishubhu ye-silicon carbide furnace ekhiqiziwe ifakwa ku-tube groove ekugcineni kwepuleti le-counterweight, futhi ishubhu yesithando somlilo iqiniswa ngokuxhunywa kwetheyiphu yokubopha kanye nebhande. Namathisela isibambiso esikhishiwe kwesinye isibophelelo sepuleti lokucindezela. Ingxenye yokulungisa ekugcineni engezansi yentambo ixhunywe ne-groove engaguquki ebekwe phezu kwepuleti le-counterweight, futhi i-pulley iphakanyiselwa ekuphakameni okufanele ngokusebenza kokushintsha. Ingxenye yangaphambili yebhokisi likagesi lenduku yokukhiya iyasuswa, futhi induku yesilayidi idluliswa ekuxhumekeni, futhi ipuleti le-counterweight libekwe phezu kwensika, edlala indima yokudlulisa amashubhu amaningi esithandweni somlilo, futhi ukusebenza kahle kuyanda izikhathi ezimbili. Ngale ndlela, ukusebenza kulula, kumiswa amaqembu amaningi amapuleti okubekezela, futhi amashubhu esithandweni angalayishwa kusetshenziswa i-tube groove ebekwe ku-endurance plate, okuthuthukisa inani lokudlulisa lamashubhu esithandweni kanye namandla okudlulisa amashubhu esithandweni. Iphedi elingasheleli elingafakwa ku-tube groove lisetshenziselwa ukuvikela ishubhu lesithando somlilo.