Ukwenziwa kwezitena zeSilicon Carbide
"Ifomula yokutyikitya" yezitena ze-silicon carbide ifuna ukuchaneka, kufana nokubhaka ikhekhe:
- Iincinci ze-silicon carbide: umxholo we-60% -90%; amanqanaba okucoceka ayalela ukuhanjiswa kwe-thermal kunye nokumelana nokubola.
- Inkqubo yokudibanisa: Ukhetho lodongwe, i-silica sol, okanye intlaka; imisela amandla okubumba kunye nomsebenzi we-sintering.
- Landela izongezo: Umgubo wesinyithi wesilicon wongeza ukuxhathisa kwi-oxidation, ngelixa inqabileyo{0}}i-oksidi zomhlaba ziphucula{1}}ukuzinza kobushushu obuphezulu.
"Amaxesha omlingo" ekuqhubekiseni
Imimangaliso iyenzeka xa imathiriyeli ekrwada idibana namaqondo obushushu aphezulu:
- Inqanaba lokubumba: Ukunyanzeliswa kokubumba kwi-200-300 MPa; ukutenxa koxinaniso kufuneka kuhlale kungaphantsi kwe-0.5%.
- Isigaba sokumisa: Ukumisa ngokukhawuleza kwi-80℃kwiiyure ezingama-48; isiqulatho sokufuma kufuneka silawulwe ngaphantsi kwe-0.3%.
- I-Sintering key: Ukudubula kwi-1450℃phantsi kwe-nitrogen emoyeni kwiiyure ze-18 kuqinisekisa ukudityaniswa okugqibeleleyo kwemida ye-silicon carbide.
Iiyantlukwano ezininzi zeFomula
Izitena ze-silicon carbide kwizicelo ezahlukeneyo zifana neesuti ezilungiselelweyo:
- Metallurgical bricks: >I-85% yesiqulatho se-silicon carbide ene-silicone yentsimbi; inika ukuxhathisa okuqinileyo kukhukuliseko lwe-slag.
- Ifenitshala ye-Ceramic kiln: Isakhiwo se-Porous esidibaniswe nefomula yokwandisa i-thermal ephantsi; imelana nokuhamba ngebhayisikile ye-thermal ekhawulezayo (i-thermal shock).
- I-Linings yeMichiza: I-Boron carbide yongezwa ukwandisa ubunzima; yandisa ubomi benkonzo ngokuchasene neeasidi kunye neealkali ngokuphindwe kathathu.