I-silicon carbide crucibleiyithuluzi elibalulekile lokuncibilikisa embonini ye-metallurgical. Ngenxa yokumelana kwayo okuhle kakhulu nokushisa okuphezulu kanye ne-thermal conductivity, isetshenziswa kabanzi ekuncibilikeni kwensimbi okuhlukahlukene kanye nokusabela kwamakhemikhali. Kodwa-ke, ukuze kuqinisekiswe ukusebenza kahle ngesikhathi sokusetshenziswa, izinsimbi ze-silicon carbide zidinga ukushisisa kahle.
Izinyathelo zokushisa kuqala ze-silicon carbide crucible
I-silicon carbide crucibles idinga ukunakekelwa okukhethekile ngesikhathi senqubo yokushisa ukuvimbela izinkinga ezifana nokwandiswa kokushisa, ukukhishwa okuphansi, i-delamination noma ukuqhekeka okubangelwa umswakama osele. Izinyathelo ezithile zimi kanje:
Ukubhaka kokuqala: Bhaka kuhhavini ngaphandle kokwengeza noma yiziphi izinto, futhi ugcine izinga lokushisa elingaphezu kwamahora angu-24. Phakathi nale nqubo, zungeza i-crucible njalo ukuze uqinisekise ukushisa okufanayo futhi ususe ngokuphelele umswakama ezindongeni ze-crucible.
Ukushisa kancane kancane:
Okokuqala shisa i-crucible ibe ngu-150 kuya ku-200 degrees Celsius bese ubamba ihora elingu-1.
Bese, khulisa izinga lokushisa ngesilinganiso esingu-150 degrees Celsius ngehora kuze kufike izinga lokushisa eliphakeme. Phakathi nale nqubo, gwema ukushiya izindonga ze-crucible emazingeni okushisa aphakathi kuka-315 no-650 degrees Celsius isikhathi eside, njengoba i-crucible izokhipha i-oxidize ngokushesha kuleli banga lokushisa, ifinyeze impilo yayo futhi inciphise ukuhamba kwayo okushisayo.
Ukwelashwa kwezinga lokushisa eliphezulu:
Ngemuva kokuthi ukushisa kuqediwe, ngaphandle kokuthi i-crucible iphinde ibonakale endaweni enomswakama futhi, ayidingi ukushiswa futhi ingaqhubeka nokusetshenziswa.
Ngemuva kokuthi ukufudumala kuqediwe, phakamisa ngokushesha izinga lokushisa libe ngu-850 ~ 950 degrees Celsius, ligcine lifudumele isigamu sehora ngaphandle kokwengeza izinto zokwakha, bese upholisa phansi ekushiseni okujwayelekile kokusebenza bese uqala ukwengeza izinto. Lokhu kwelashwa kunganweba ngempumelelo impilo yesevisi ye-crucible.
Ezinye izindlela zokucubungula ngaphambilini
Ngaphezu kwezinyathelo zokushisa ezingenhla, izindlela ezilandelayo zingasetshenziswa:
Hlangisa eduze komshini wokushisa amafutha: Ukubeka i-crucible eduze nomshini wokushisa amafutha kungasiza ukususa umswakama.
Ukushiswa kwamalahle noma izinkuni: Ukushisa amalahle noma ukhuni ebhodweni kungasiza ekususeni umswakama.
Ukukhetha usayizi olungile we-crucible
Ubukhulu be-silicon carbide crucible buyahlukahluka kuye ngomkhiqizi kanye nesicelo esithile. Ngakho-ke, lapho ukhetha, sicela ubhekisele ekucacisweni komkhiqizo othile noma uthintane nomphakeli ukuze uthole ulwazi olunembile. Ukukhetha i-crucible efanele ngokusekelwe ezidingweni zakho kungathuthukisa ukusebenza kahle kokukhiqiza kanye nekhwalithi yomkhiqizo.
Ngokulandela izinqubo ezifanele zokushisa nokucubungula, ama-silicon carbide crucibles angakhulisa ukusebenza kwawo futhi andise impilo yawo yesevisi, anikeze isiqinisekiso esithembekile senqubo yakho yokukhiqiza.
Graphite Crucible User Guide
I-graphite crucibles nayo isetshenziswa kabanzi ekuhlolweni kwezinga lokushisa eliphezulu kanye nokukhiqizwa kwezimboni. Ukumelana kwayo nezinga lokushisa eliphezulu, ukumelana nokugqwala, kanye ne-thermal conductivity enhle kuyenza ilungele ukuhlolwa okuningi nezinqubo zokukhiqiza. Ukuze kuqinisekiswe ukusebenza okuhle kakhulu nempilo ende yesevisi ye-graphite crucible, izigaba ezilandelayo kufanele zinakwe ngesikhathi sokusetshenziswa:
Ukubekwa kwesampula
Isampula eliqinile: Sabalalisa ngokulinganayo into yokuhlola noma impahla eluhlaza ku-graphite crucible ukuze ugweme ukushisisa ngokweqile kwendawo noma ukuchaphazwa.
Amasampula oketshezi: Sebenzisa i-dropper noma elinye ithuluzi lesampula elincane ukuphonsa uketshezi ku-crucible ukugwema ukuchaphaza noma ukungcolisa ingaphandle le-crucible.
umsebenzi wokushisisa
indlela yokushisisa:
Sebenzisa izinto zokushisisa zikagesi, ukushisisa ngemisebe ye-infrared noma ezinye izindlela zokushisisa ezifanele ukushisisa i-graphite crucible.
Gwema ukushisa okuqondile ngelangabi elivulekile. Ngenxa yokuthi i-graphite ye-high-purity ine-conductivity ephezulu yokushisa, ukushisa okuqondile ngelangabi elivulekile kungase kubangele ukuthi i-crucible igogeke noma iqhekeke.
Isivinini sokushisisa:
Gcina izinga lokushisa elifanelekile ukuze ugweme ukulimaza i-crucible ngenxa yokushintsha kwezinga lokushisa okungazelelwe.
Lungisa indawo kanye namandla edivayisi yokushisa ukuze uqinisekise ukuthi i-crucible ishisa ngokulinganayo.
Izinyathelo zokuzivikela
Gwema ukuthintana ngokuqondile nelangabi: Uma ushisa, gwema ukuthintana ngqo nelangabi ukuze ugweme ukushiya amamaki amnyama ngaphansi kwe-crucible noma ukudala omunye umonakalo.
Ukulawula izinga lokushisa: I-graphite crucible iyazwela ekushintsheni kwezinga lokushisa, ngakho-ke izinga lokushisa lokushisa kufanele lilawulwe ngesikhathi sokusetshenziswa ukuze kugwenywe ukugqabuka kwe-crucible ngenxa yezinga lokushisa eliphezulu kakhulu noma eliphansi kakhulu.
Ukuhlanzeka kwemvelo nokuphepha: Gcina indawo ezungezile ihlanzekile futhi ugweme ukulimala kwe-graphite crucible ngenxa yomthelela noma ukuwa kusuka ezindaweni eziphakeme.
Ukusekelwa kwedatha yochwepheshe
I-Thermal conductivity: I-thermal conductivity ye-high-purity graphite crucible cishe i-100-300 W/m·K, eyenza ikwazi ukudlulisa ukushisa ngokushesha emazingeni okushisa aphezulu futhi inciphise umphumela wokucindezeleka we-gradient yokushisa ku-crucible.
Izinga lokushisa elisebenzayo: I-graphite crucible inokumelana okuhle kakhulu kwezinga lokushisa eliphezulu, izinga lokushisa eliphezulu lokusebenza lingafinyelela ku-3000 ° C, futhi lisetshenziswe kangcono endaweni engenalutho.
Ukumelana ne-oxidation: Uma isetshenziswa emazingeni okushisa aphezulu emoyeni, ingaphezulu le-graphite crucible livame ukuvela ku-oxidation. Izinyathelo zokuzivikela ezifana nokusebenzisa i-anti-oxidation coating noma ukusebenzisa ukuvikelwa kwegesi engasebenzi kufanele kuthathwe.
Ukunamathela ngokuqinile ezindleleni ezingenhla kanye nezinyathelo zokuphepha kungaqinisekisa ukusebenza kahle okuphezulu nempilo ende yama-graphite crucibles kanyei-silicon carbide crucibles, ngaleyo ndlela kuthuthukisa ukwethembeka kanye nekhwalithi yokuhlolwa nokukhiqiza.
Isikhathi sokuthumela: Jul-11-2024