I-silicon carbide ebotshelelwe yi-reactioniziqwenga zomliloimele impumelelo kwitekhnoloji yokuchasana nobushushu, inikezela ngokusebenza okungenakuthelekiswa nanto kwiindawo ezinobushushu obugqithisileyo. Ezi zikhongozeli zeseramikhi eziphambili ziye zaba yinto ebalulekileyo kuzo zonke izimboni zesinyithi, ukuphoswa ngokuchanekileyo, ubunjineli boomatshini, kunye namashishini okucubungula iikhemikhali, zibonelela ngokusebenza okuphezulu apho izixhobo zemveli zingaphumeleli khona.
Iingenelo zobuGcisa eziPhambili
Ii-RBSC crucibles ziphumelela kakhulu kunee-alumina zesiqhelo kunye nee-graphite nge:
- Ukuqhuba kobushushu okungaqhelekanga (120–150 W/m·K kwi-1000°C)
- I-coefficient yokwandiswa kobushushu obuphantsi kakhulu (4.5×10⁻⁶/K)
- Ukumelana nobushushu obuphezulu obumelana nemijikelo yokupholisa ekhawulezayo engaphezu kwama-50 (1600°C →25°C)
- Ukumelana nokugqwala kwe-asidi/alkali (ukuhambelana kwe-pH 0–14)
- Uzinzo lwe-oxidation emoyeni ukuya kuthi ga kwi-1650°C
Ubuchule beMetallurgical
Kwimveliso yentsimbi ye-alloy kunye nokunyibilikisa isinyithi esingena-ferrous (i-aluminium, i-copper, i-zinc), ii-RBSC crucibles zivumela:
- Amazinga okunyibilika akhawulezayo angama-20–30% ngokudluliselwa kobushushu okuphuculweyo
- Ukugcinwa kobunyulu besinyithi obuyi-99.95% ngokusebenzisa iindawo ezingashukumiyo
- Ukuncipha kokwakheka kwe-slag ngokusebenzisa ukuhluma okuncinci kobushushu
- Ubomi benkonzo obude (ubude obuyi-3–5× kuneziqhoboshi zodongwe-graphite)
Ukufaka Ngokuchanekileyo kunye nezicelo zeMechanical
Iimpawu ezikhethekileyo zezixhobo zoomatshini ezisetyenziswa kwiikrucibles zixhasa iimfuno zoshishino ezifuna amandla:
- Ukuqina kwesakhiwo okuzinzileyo phantsi koxinzelelo loomatshini lwe-15–20 MPa
- Uzinzo oluhambelanayo (±0.1% utshintsho lwevolumu kwi-1500°C)
- Ukucubungula ngaphandle kongcoliseko lwezixhobo ze-aerospace
- Ukusebenza okuthembekileyo kwiinkqubo zokuphosa ze-centrifugal
Ukugqwesa ekuHlaziyweni kweeKhemikhali
Ii-RBSC crucibles zijongana nemingeni ebalulekileyo ekuqulunqweni kweekhemikhali:
- Ukugcinwa ngokukhuselekileyo kweetyuwa ezinyibilikisiweyo (umz., NaOH, KNO₃)
- Ukusebenza okuzinzileyo kwiimpendulo ze-sulfidation/chlorination
- Ukumelana nokugqwala nxamnye ne-HF ukuya kuthi ga kwi-800°C
- Ukugcinwa kobunyulu ekutsalweni kwezinto ezinqabileyo zomhlaba
Uqoqosho Lokusebenza
Nangona iindleko zokuqala ziphezulu ngama-40-60% kunezixhobo zokutshayela zemveli, izisombululo ze-RBSC zibonelela ngezi zinto zilandelayo:
- Ukunciphisa i-70% kwi-frequency yokutshintshwa
- Ukonga amandla ngama-25–35% ngokusebenzisa ubushushu obuphucukileyo
- Ukukwazi ukuphinda usebenzise izinto nge-90% ngokubuyisela ubushushu
- Iimfuno zolondolozo eziphantse zibe zero
Izinto Ezintsha Ezithile Kushishino
1. Imveliso yeTitanium Alloy
- Iyamelana nokunyibilika kwe-Ti eguquguqukayo kwi-1700°C
- Ithintela ungcoliseko lokuqokelelwa kwekhabhoni
2. Ukwenziwa kwezinto zebhetri
- Ivumela ukucutshungulwa kwe-cathode ye-LiCoO₂ efanayo
- Iyamelana nokugqwala kwetyuwa ye-lithium
3. Ukukhula kwekristale ye-semiconductor
- Igcina ukuhambelana okuphezulu kakhulu kwe-vacuum
- Isusa ungcoliseko lwe-silicon carbide
Uyilo oluPhambili kwixesha elizayo
Ii-crucibles ze-RBSC zanamhlanje ziquka iimpawu eziphambili:
- Izakhiwo ze-Gradient porosity zokulawula ukungena kwegesi
- Iingubo zomphezulu ze-Nanoscale eziphucula ukumelana ne-slag
- Izinzwa zobushushu ezifakiweyo zokujonga inkqubo
Ukususela kuphando olukwinqanaba lelebhu ukuya kwimveliso yobuninzi bemizi-mveliso, ii-silicon carbide crucibles ezidityaniswe ne-reaction-bonded ziyaqhubeka nokuchaza kwakhona amandla okucubungula ubushushu. Udibaniso lwazo olulodwa lweempawu zobushushu, zoomatshini, kunye neekhemikhali zibeka njenge-crucible ekhethwayo kwizicelo zobushushu obuphezulu zesizukulwana esilandelayo, okuqhuba ukusebenza kakuhle kunye nokuphuculwa komgangatho kumacandelo amaninzi okuvelisa aphucukileyo.
Ixesha lokuthumela: Matshi-20-2025