I-Crucible kunye ne-Sagger

I-crucible yimbiza yeseramikhi esetyenziselwa ukubamba isinyithi ukuze sinyibilike esithandweni. Le yi-crucible esemgangathweni ophezulu, ekumgangatho wemizi-mveliso esetyenziswa lishishini lezinto zokubumba zorhwebo.

Isixhobo sokunyibilikisa kufuneka sikwazi ukumelana nobushushu obugqithisileyo obufunyanwa kwiintsimbi ezinyibilikisayo. Izinto zokunyibilikisa kufuneka zibe nendawo yokunyibilikisa ephezulu kakhulu kuneyesinyithi esinyibilikisayo kwaye kufuneka sibe namandla amahle nokuba sishushu kakhulu.

I-silicon carbide crucible enobushushu obuphezulu yifenitshala efanelekileyo ye-oven kwiifenitshala zoshishino, ifanelekile ukutshiswa nokunyibilikiswa kweemveliso ezahlukeneyo, kwaye isetyenziswa kakhulu kwiikhemikhali, ipetroli, ukhuseleko lokusingqongileyo nakwezinye iindawo. I-silicon carbide yeyona nxalenye iphambili yekhemikhali ye-silicon carbide germanium, eneempawu zobunzima obuphezulu. Ubunzima be-silicon carbide crucible buphakathi kwe-corundum kunye nedayimani, amandla ayo oomatshini aphezulu kune-corundum, enesantya esiphezulu sokudlulisa ubushushu, ngoko ke inokonga amandla amaninzi.

I-RBSiC/SISIC crucible kunye ne-sagger sisitya se-ceramic esinzulu. Ngenxa yokuba ingcono kunezitya zeglasi xa imelana nobushushu, isetyenziswa kakuhle xa into eqinileyo ifudunyezwa ngumlilo. I-Sagger yenye yefenitshala ebalulekileyo ye-oven yokutshisa i-porcelain. Zonke iintlobo zee-porcelain kufuneka zifakwe kwii-saggers kuqala uze emva koko zifakwe kwi-oven ukuze ziyosiwe.

I-silicon carbide melting crucible yeyona nto iphambili kwizixhobo zeekhemikhali, sisikhongozeli esinye esinokusetyenziselwa ukunyibilikisa, ukucoca, ukufudumeza kunye nokuphendula. Kukho iimodeli ezininzi kunye nobukhulu obubandakanyiweyo; akukho mda kwimveliso, ubungakanani okanye izixhobo.

I-silicon carbide melting crucible yizikhongozeli zeseramikhi ezimile okwesitya esinzulu ezisetyenziswa kakhulu kushishino lwesinyithi. Xa izinto eziqinileyo zifudunyezwa ngumlilo omkhulu, kufuneka kubekho isikhongozeli esifanelekileyo. Kubalulekile ukusebenzisa i-crucible ngelixa ufudumeza kuba inokumelana nobushushu obuphezulu kunezitya zeglasi kwaye iqinisekise ubunyulu obuvela kungcoliseko. I-silicon carbide melting crucible ayinakuzaliswa kakhulu yimixholo enyibilikisiweyo kuba izinto ezishushu zinokubiliswa kwaye zitshizwe. Ngaphandle koko, kubalulekile ukugcina umoya ujikeleza ngokukhululekileyo ukuze kubekho iimpendulo ze-oxidation.

Isaziso:
1. Yigcine yomile kwaye icocekile. Kufuneka ifudunyezwe ukuya kuthi ga kwi-500℃ kancinci ngaphambi kokuba uyisebenzise. Gcina zonke iziqhoboshi kwindawo eyomileyo. Ukufuma kunokubangela ukuba isiqhoboshi siqhekeke xa sifudunyezwa. Ukuba ibigcinwe ixesha elide, kungcono ukuphinda uyisebenzise. Iziqhoboshi ze-silicon carbide zezona zincinci kakhulu ezinokufunxa amanzi xa zigcinwe kwaye azidingi ukufudunyezwa ngaphambi kokuba zisetyenziswe. Kungumbono olungileyo ukufudumeza isiqhoboshi esitsha kubushushu obubomvu ngaphambi kokuba sisetyenziswe okokuqala ukuze siqhube kwaye siqinise iingubo zomzi-mveliso kunye nezibopheleli.
2. Beka izinto kwi-silicon carbide melting crucible ngokwe-volume yayo kwaye ugcine indawo efanelekileyo ukuze uphephe ukwaphuka kobushushu. Izinto kufuneka zibekwe kwi-crucible ngokukhululekileyo. UNGAZE "upakishe" i-crucible, njengoko izinto ziya kwanda xa zifudumala kwaye zingaqhekeza i-ceramic. Nje ukuba ezi zinto zinyibilike zibe "sisithende", faka ngononophelo ezinye izinto echibini ukuze zinyibilike. (ISILUMKISO: Ukuba kukho naluphi na umswakama kwizinto ezintsha, kuya kubakho UKUQHUBEKA komphunga). Kwakhona, musa ukupakisha isinyithi ngokuqinileyo. Qhubeka ufaka izinto kwi-melt de kube kunyibilike ubungakanani obufunekayo.
3. Zonke izixhobo zokubopha kufuneka ziphathwe ngezibambo ezifanelekileyo (isixhobo sokuphakamisa). Izixhobo zokubopha ezingalunganga zinokubangela umonakalo okanye ukungasebenzi ngokupheleleyo kwesixhobo sokubopha ngexesha elibi kakhulu.
4. Kuphephe umlilo onamandla oxidized ovuthayo ngqo kwi-crucible. Oku kuya kunciphisa ixesha lokusebenzisa ngenxa ye-oxidation yezinto ezibonakalayo.
5. Musa ukubeka i-silicon carbide enyibilikayo eshushu phezu kwesinyithi esibandayo okanye kumphezulu womthi ngoko nangoko. Ukubanda ngequbuliso kuya kukhokelela ekuqhekekeni okanye ekuqhekekeni kwaye umphezulu womthi unokubangela umlilo. Nceda uyishiye kwisitena okanye kwipleyiti enganyangekiyo kwaye uyivumele iphole ngokwendalo.