Isicelo
Izitsha zobumba ze-silicon carbidezisebenza izindima ezibalulekile emisebenzini yesitofu sezimboni emikhakheni eminingi. Isicelo esiyinhloko ama-nozzle okushisa e-silicon carbide, asetshenziswa kabanzi ezinhlelweni zokushisa okuphezulu zokucubungula insimbi, ukukhiqizwa kwengilazi, kanye nokushisa nge-ceramic ngenxa yokuqina kwesakhiwo sazo ezindaweni ezishisayo kakhulu. Okunye ukusetshenziswa okubalulekile ama-roller e-silicon carbide, asebenza njengokusekela nokuhambisa izingxenye ezitsheni ezishisayo eziqhubekayo, ikakhulukazi ekushiseni izitsha ze-ceramic ezithuthukisiwe, izingxenye ze-elekthronikhi, kanye nengilazi enembile. Ngaphezu kwalokho, izitsha ze-SiC zisetshenziswa njengezingxenye zesakhiwo ezifana nemishayo, ama-rails, kanye nama-setter ezitsheni ze-kiln, lapho zibekezelela khona ukuchayeka isikhathi eside emoyeni onamandla kanye nokucindezeleka komshini. Ukuhlanganiswa kwazo kumayunithi okushintshanisa ukushisa kwezinhlelo zokubuyisa ukushisa okulahliwe kugcizelela kakhulu ukuguquguquka kwazo ekuphathweni kokushisa okuhlobene nesitofu. Lezi zinhlelo zokusebenza zigcizelela ukuzivumelanisa kwe-silicon carbide nezidingo zokusebenza ezahlukahlukene ngaphakathi kobuchwepheshe bokushisa bezimboni.
Izicelo ezibalulekile ze-oven yezimboni zifaka:
1.Ama-nozzle okushisa i-silicon carbide
4.Ishubhu ekhanyayo ye-silicon carbide
Izinzuzo Zobuchwepheshe
1. Ukuzinza Okushisayo Okumangalisayo
- Indawo yokuncibilika: 2,730°C (igcina izindawo ezinokushisa okuphezulu kakhulu)
- Ukumelana ne-oxidation kuze kufike ku-1,600°C emoyeni (kuvimbela ukuwohloka kwesimo sezulu se-oxidative)
2. Ukushisa Okuphezulu Kokushisa
- 150 W/(m·K) ukuqhutshwa kokushisa ekamelweni lokushisa (kuvumela ukudluliselwa kokushisa okusheshayo kanye nokusatshalaliswa kokushisa okufanayo)
- Kunciphisa ukusetshenziswa kwamandla ngo-20–30% uma kuqhathaniswa nezinto ezivamile zokungawuvimbeli.
3. Ukumelana Nokushaqeka Okungalingani Nokushisa
- Imelana nokushintshashintsha kwezinga lokushisa okusheshayo okungaphezu kuka-500°C/sec (ilungele izinqubo zokushisa/zokupholisa ezijikelezayo).
- Igcina ubuqotho besakhiwo ngaphansi kokujikeleza kokushisa (ivimbela ukuqhekeka nokuguquka).
4. Amandla Aphezulu Okusebenza Emishinini Emazingeni Okushisa Aphakeme
- Igcina u-90% wamandla okushisa kwegumbi ku-1,400°C (okubalulekile ezingxenyeni zehhavini elithwala umthwalo).
- Ubulukhuni be-Mohs obungu-9.5 (bumelana nokuguguleka kwezinto ezihuzukayo ezindaweni zesitofu).
| Impahla | I-Silicon Carbide (i-SiC) | I-Alumina (Al₂O₃) | Izinsimbi Ezingaguquki (isb., Ama-alloy asekelwe ku-Ni) | Izinto Zokuqabula Zendabuko (isb., izitini zomlilo) |
| Izinga lokushisa eliphezulu | Kufika ku-1600°C+ | 1500°C | 1200°C (kuyathamba ngaphezulu) | 1400–1600°C (kuyahlukahluka) |
| Ukuqhuba Okushisayo | Okuphezulu (120–200 W/m·K) | Okuphansi (~30 W/m·K) | Okumaphakathi (~15–50 W/m·K) | Kuphansi Kakhulu (<2 W/m·K) |
| Ukumelana Nokushaqeka Okushisayo | Kuhle kakhulu | Kubi kuya Kumaphakathi | Okumaphakathi (ukuguquguquka kuyasiza) | Kubi (imifantu ngaphansi kwe-ΔT esheshayo) |
| Amandla Okusebenza | Igcina amandla emazingeni okushisa aphezulu | Iyancipha ngaphezu kuka-1200°C | Iyancipha emazingeni okushisa aphezulu | Iphansi (ithambile, inezimbobo) |
| Ukumelana Nokugqwala | Imelana nama-asidi, ama-alkali, izinsimbi ezincibilikisiwe/i-slag | Okumaphakathi (kuhlaselwe ama-asidi/izisekelo eziqinile) | Ithambekele ekufakweni kwe-oxidation/sulfidation emazingeni okushisa aphezulu | Iyawohloka ezindaweni ezigqwalisayo |
| Isikhathi Sokuphila | Inde (imelana nokuguguleka/ukushiswa yi-oxidation) | Okumaphakathi (imifantu ngaphansi kokujikeleza kokushisa) | Okufushane (kuyakhipha i-oxidize/kuyakhukhuleka) | Okufushane (ukuqhekeka, ukuguguleka) |
| Ukusebenza Kahle Kwamandla | Ukudluliselwa kokushisa okuphezulu (okusheshayo) | Ukushisa okuphansi (ukushisa okubi) | Okumaphakathi (okuqhubayo kodwa oxidize) | Iphansi Kakhulu (ivikela umswakama) |
Icala Lemboni
Ibhizinisi elihamba phambili lokucubungula insimbi lithole ukuthuthuka okukhulu kokusebenza ngemuva kokuhlanganisa i-silicon carbide (SiC) ceramics ezinhlelweni zalo ze-oven ezishisa kakhulu. Ngokushintsha izingxenye ze-alumina ezivamile ngeama-nozzle okushisa i-silicon carbide, ibhizinisi libike:
✅ Izindleko zokulungisa zaminyaka yonke eziphansi ngo-40% ngenxa yokuncipha kokuwohloka kwezingxenye ezindaweni ezishisa kakhulu ngo-1500°C+.
✅ Ukwanda okungu-20% esikhathini sokusebenza kokukhiqiza, okubangelwa ukumelana kwe-SiC nokushaqeka kokushisa kanye nokugqwala okuvela ku-slag encibilikisiwe.
✅ Ukuhambisana nezindinganiso zokuphathwa kwamandla ze-ISO 50001, kusetshenziswa ukuhanjiswa kokushisa okuphezulu kwe-SiC ukuze kuthuthukiswe ukusebenza kahle kukaphethiloli ngo-15–20%.
Isikhathi sokuthunyelwe: Mashi-21-2025