Isicelo
Iiseramikhi zeSilicon Carbidezisebenza indima ebalulekileyo kwimisebenzi ye-oven yemizi-mveliso kumacandelo amaninzi. Isicelo esiphambili zii-nozzles ze-silicon carbide burner, ezisetyenziswa kakhulu kwiinkqubo zokutsha ezishushu kakhulu ekucutshungulweni kwe-metallurgical, ukuvelisa iglasi, kunye nokutshisa i-ceramic ngenxa yokuzinza kwazo kwizakhiwo kwiindawo ezishushu kakhulu. Olunye ukusetyenziswa okuphambili zii-silicon carbide rollers, ezisebenza njengenkxaso kunye nokuhambisa izinto kwii-oven eziqhubekayo, ngakumbi ekutshiseni ii-ceramics eziphambili, izinto ze-elektroniki, kunye neglasi echanekileyo. Ukongeza, ii-SiC ceramics zisetyenziswa njengezinto zesakhiwo ezifana nee-beams, ii-rails, kunye nee-setters kwii-oven ze-oven, apho zinyamezela ixesha elide ukuvezwa kwi-atmospheres ezinamandla kunye noxinzelelo loomatshini. Ukuhlanganiswa kwazo kwiiyunithi zokutshintsha ubushushu kwiinkqubo zokubuyisa ubushushu obumdaka kugxininisa ngakumbi ukuguquguquka kwazo kulawulo lobushushu olunxulumene ne-oven. Ezi zicelo zigxininisa ukulungelelaniswa kwe-silicon carbide kwiimfuno ezahlukeneyo zokusebenza kwitekhnoloji yokufudumeza yemizi-mveliso.
Izicelo eziphambili ze-oven yemizi-mveliso ziquka:
1.Iimpumlo zokutshisa i-silicon carbide
4.Ityhubhu ye-silicon carbide ekhazimlayo
Iingenelo zobugcisa
1. Uzinzo oluKhethekileyo lobushushu
- Iqondo lokunyibilika: 2,730°C (ligcina iindawo ezinobushushu obuphezulu kakhulu)
- Ukumelana ne-oxidation ukuya kuthi ga kwi-1,600°C emoyeni (kuthintela ukuwohloka kwemozulu ye-oxidative)
2. Ukuqhuba okuPhezulu kobushushu
- 150 W/(m·K) ukuhanjiswa kobushushu kubushushu begumbi (kuvumela ukudluliselwa kobushushu ngokukhawuleza kunye nokusasazwa kobushushu obufanayo)
- Inciphisa ukusetyenziswa kwamandla ngama-20–30% xa kuthelekiswa nezinto zemveli ezichasayo.
3. Ukumelana noTshabalalo oluNgalinganiyo noTshabalalo
- Iyamelana nokuguquguquka okukhawulezileyo kobushushu okungaphezulu kwama-500°C/sec (ilungele iinkqubo zokufudumeza/zokupholisa ezijikelezayo).
- Igcina ulwakhiwo lusemgangathweni phantsi komjikelo wobushushu (ithintela ukuqhekeka kunye nokuguquguquka).
4. Amandla aphezulu oomatshini kumaqondo obushushu aphezulu
- Igcina ama-90% obushushu begumbi kwi-1,400°C (ibalulekile kwiindawo ze-oven ezithwala umthwalo).
- Ubunzima beMohs obuyi-9.5 (bumelana nokuguguleka kwezinto ezirhabaxa kwiindawo ze-oven).
| Ipropati | I-Silicon Carbide (i-SiC) | I-Alumina (Al₂O₃) | IiMetals ezirhabaxa (umz., ii-alloys ezisekwe kwi-Ni) | Izinto ezirhabaxa zemveli (umz., izitena zomlilo) |
| Ubushushu obuphezulu | Ukuya kuthi ga kwi-1600°C+ | 1500°C | 1200°C (ithambile ngaphezulu) | 1400–1600°C (iyahluka) |
| Ukuqhuba kweThermal | Phezulu (120–200 W/m·K) | Ephantsi (~30 W/m·K) | Iphakathi (~15–50 W/m·K) | Iphantsi kakhulu (<2 W/m·K) |
| Ukumelana noTshabalalo oluTshisayo | Igqwesile | Imbi ukuya kwiPhakathi | Eliphakathi (ukuguquguquka kuyanceda) | Imbi (iyaqhekeka phantsi kwe-ΔT ekhawulezayo) |
| Amandla oomatshini | Igcina amandla kumaqondo obushushu aphezulu | Ihla ngaphezu kwe-1200°C | Ibuthathaka xa kushushu kakhulu | Iphantsi (ithambile, inemingxuma) |
| Ukumelana nokugqwala | Iyamelana nee-asidi, ii-alkali, iimetali ezinyibilikisiweyo/inkunkuma | Iphakathi (ihlaselwa zii-asidi/iziseko ezinamandla) | Ilungele ukunyibilika/ukunyibilika kwi-sulfidation kumaqondo obushushu aphezulu | Iyancipha kwiindawo ezitshisayo |
| Umsebenzi wobomi | Inde (ingagugi/ingatshisi ioksijini) | Iphakathi (iintanda phantsi komjikelo wobushushu) | Mfutshane (uyayitshisa/iyarhubuluza) | Mfutshane (ukukhukuliseka, ukukhukuliseka) |
| Ukusebenza kakuhle kwamandla | Ukudluliselwa kobushushu okuphezulu (okukhawulezayo) | Ukuqhuba ubushushu okuphantsi (okungahambi kakuhle) | Eliphakathi (liqhuba kodwa liyenza i-oxidize) | Iphantsi kakhulu (ikhusela ubushushu) |
Ityala leShishini
Ishishini eliphambili lokucubungula isinyithi lifumene uphuculo olukhulu lokusebenza emva kokudibanisa iiseramikhi zesilicon carbide (SiC) kwiinkqubo zalo ze-oven ezinobushushu obuphezulu. Ngokutshintsha izixhobo ze-alumina eziqhelekileyo ngeiimpumlo zokutshisa i-silicon carbide, eli shishini libike oku:
✅ Iindleko zokugcina izinto ngonyaka eziphantsi ngama-40% ngenxa yokuncipha kokuwohloka kwezinto kwiindawo ezishushu kakhulu ezingama-1500°C+.
✅ Ukunyuka kwama-20% kwixesha lokusebenza kwemveliso, okubangelwa kukuxhathisa kweSiC kubushushu kunye nokugqwala okuvela kwi-slag enyibilikisiweyo.
✅ Ukuhambelana nemigangatho yolawulo lwamandla ye-ISO 50001, kusetyenziswa ukuhanjiswa kobushushu okuphezulu kwe-SiC ukuze kuphuculwe ukusebenza kakuhle kwepetroli nge-15–20%.
Ixesha leposi: Matshi-21-2025