Njengesixhobo esibalulekileyo kwitekhnoloji yokuphosa yanamhlanje,i-silicon carbide crucibleithe ngokuthe ngcembe yaba sisikhongozeli esithandwayo sokunyibilikiswa kwesinyithi esingeyontsimbi ngenxa yokusebenza kwayo okugqwesileyo kunye neempawu ezizodwa zemathiriyeli. Ngokukodwa xa kusetyenzwa ngokunyibilika kwesinyithi esinobushushu obuphezulu, iicrucibles zesilicon carbide zibonisa uthotho lweenzuzo zobugcisa ezibalulekileyo. Eli nqaku liza kwazisa ngokubanzi iimpawu zentsebenzo ye-silicon carbide crucibles, ukusetyenziswa kwayo kwiinkqubo zokuphosa, kunye nendlela yokubonelela ngezisombululo ezisebenzayo nezithembekileyo kwiinkampani zanamhlanje.
1. Yintoni i-silicon carbide crucible?
I-Silicon carbide crucible sisitya esinobushushu obuphezulu sisebenzisa isilicon carbide (SiC) njengeyona nto iphambili ekrwada. Isetyenziselwa ikakhulu ukunyibilikisa kunye nokucubungula iintsimbi ezahlukeneyo kunye nealloys. I-silicon carbide yimathiriyeli eyenziweyo enobunzima obuphezulu kakhulu kunye nokumelana nobushushu. Isetyenziswa kakhulu kwiinkalo zobuchwephesha obuphezulu ezifana neekeramics, i-metallurgy, kunye ne-semiconductors.
Ngenxa yokuba i-silicon carbide crucibles ineempawu ezibalaseleyo zomzimba kunye neekhemikhali ezifana ne-thermal conductivity ephezulu, i-coefficient yokwandisa i-thermal ephantsi, kunye nokumelana nokubola, zibonakalisa ukuzinza okungenakulinganiswa kunye nokuqina phantsi kobushushu obuphezulu kunye neemeko ezinzima.
2. Iinzuzo zobugcisa be-silicon carbide crucible
1. Ukumelana nobushushu obuphezulu
I-silicon carbide crucibles inokumelana nobushushu obuphezulu kakhulu kwaye inokumelana namaqondo obushushu angaphezu kwe-1600 ° C. Oku kubenza balungele ukunyibilikisa iintsimbi ezinobushushu obuphezulu ezifana nobhedu, ialuminiyam kunye nenickel. Xa kuthelekiswa neentsimbi ezenziwe kwezinye izinto, amandla e-silicon carbide crucibles awanciphisi kakhulu phantsi kweemeko eziphezulu zokushisa, ukuqinisekisa ukuzinza kwayo kwimilo ngexesha lenkqubo yokunyibilika.
Oku kuxhathisa ubushushu obuphezulu kunceda iinkampani ukuba ziphephe iziphambano ezenzakalweni okanye ziqhekeke ngenxa yobushushu obuphezulu, ngaloo ndlela ziphucula ukuqhubeka kwemveliso kunye nokusebenza kakuhle.
2. Ukuqhuba kakuhle kwe-thermal
Olunye uphawu oluphawulekayo lwe-silicon carbide material yi-conductivity ephezulu ye-thermal, evumela ukukhawuleza kunye nokugqithiswa kobushushu. Oku kuthetha ukuba ngexesha lenkqubo yokunyibilika, isinyithi esityhidiweyo sinokufikelela ngokukhawuleza kwiqondo lokushisa elifunekayo, ukunciphisa ixesha lokunyibilika kunye nokuphucula ukusebenza kakuhle kwemveliso.
Oku kuqhuba ubushushu obusebenzayo kunciphisa ukufudumeza kwesinyithi esinyibilikisiweyo, kunceda ukufezekisa ulawulo oluchanekileyo lobushushu ngexesha lenkqubo yokuphosa kunye nokuqinisekisa umgangatho wokuphosa ongaguqukiyo.
3. I-coefficient yokwandisa i-thermal ephantsi
I-coefficient yokwandiswa kwe-thermal ibhekisela kwinqanaba apho into eyanda ngayo umthamo xa ishushu. I-silicon carbide ine-coefficient ephantsi kakhulu yokwandiswa kwe-thermal, oku kuthetha ukuba itshintsha kakhulu ngobukhulu xa ishushu. Ngoko ke, nakwindawo enokuguquguquka okukhulu kweqondo lokushisa, i-silicon carbide crucible inokugcina isimo sayo sokuqala kwaye igweme ukuqhekeka okanye umonakalo ngenxa yokwandiswa okanye ukuchithwa.
Ukwandiswa kwe-thermal ephantsi kufanelekileyo ngokukodwa kwiinkqubo zokuphosa ezibandakanya ukufudumeza rhoqo kunye nokujikeleza kokupholisa, ukwandisa kakhulu ubomi benkonzo ye-crucible.
4. Ukumelana nokugqwesa okugqwesileyo
Ngethuba lenkqubo yokunyibilika, isinyithi esityhidiweyo siphendula kunye ne-crucible, ngokuthe ngcembe igubungele indawo yayo. Nangona kunjalo, imathiriyeli ye-silicon carbide inokumelana nokugqwesa kweekhemikhali kwaye inokuxhathisa ngokufanelekileyo ukukhukuliseka kolwelo lwetsimbi, ngakumbi xa ujongana neentsimbi ezisebenza kakhulu ezifana nobhedu kunye ne-aluminium.
Ukumelana nokugqwesa okulungileyo akugcini nje ukwandisa ubomi benkonzo ye-crucible, kodwa kunciphisa ukungcoliseka kokungcola okubangelwa ukubola kwi-crucible surface, ukuqinisekisa ukucoceka kolwelo lwetsimbi kunye nokuphucula umgangatho wemveliso yokugqibela.
5. Amandla aphezulu oomatshini
I-Silicon carbide crucibles igcina amandla aphezulu omatshini nakwiqondo lokushisa eliphezulu, okwenza ukuba bangabinakho ukuphuka okanye ukukhubazeka. Olu phawu lwamandla aphezulu luvumela ukuba i-crucible imelane nempembelelo yentsimbi etyhidiweyo kunye noxinzelelo lwangaphandle lomatshini, ukugcina ukuzinza kwesakhiwo ngexesha lobushushu obuphezulu be-smelting.
6. Ukuzinza kakuhle kwe-thermal shock
Uzinzo lokuthotywa kwe-Thermal kubhekiselele kwisakhono sesixhobo sokuxhathisa ukuqhekeka xa ubushushu buguquka ngokukhawuleza. I-silicon carbide crucibles ibonisa ukuzinza okumangalisayo kwe-thermal shock kwaye iyakwazi ukumelana nokutshintsha ngokukhawuleza kobushushu ngaphandle kokuqhekeka. Oku kubaluleke kakhulu kwiinkqubo zokuphosa ezifuna ukufudumeza rhoqo kunye nokupholisa.
Ntathu. Ukusetyenziswa kwe-silicon carbide crucible
Ngenxa yokumelana nobushushu obuphezulu, i-thermal conductivity, kunye nokumelana nokubola, i-silicon carbide crucibles isetyenziswa ngokubanzi kwiinkqubo ezahlukeneyo zokunyibilikisa kunye nokuphosa, ngakumbi ekunyibilikeni kwesinyithi kunye ne-alloys engeyiyo. Oku kulandelayo zizinto ezininzi eziqhelekileyo zesicelo:
Ukubunjwa kobhedu: Xa kunyibilikiswa ubhedu,i-silicon carbide crucibles inokugcina iyunifomu yobushushu obunyibilikayo, inciphise ukubunjwa kokungcola, kwaye iphucule umgangatho wamacandelo obhedu.
I-aluminium kunye ne-aluminium alloy smelting: I-aluminiyam iphendula ngokulula kunye ne-crucible ngexesha lenkqubo yokunyibilika, kodwa ukuxhathisa kwe-silicon carbide kukhusela ngokufanelekileyo i-crucible kwi-aluminiyam ye-corrosion kwaye yandisa ubomi bayo benkonzo.
Okunye ukunyibilika kobushushu obuphezulu: I-Silicon carbide crucible ikwafanelekile ukunyibilikisa isinyithi sobushushu obuphezulu njenge-zinc kunye ne-nickel, kwaye inokuguquguquka okuqinileyo.
Isine. Ukusetyenziswa kunye nokugcinwa kwe-silicon carbide crucible
Ukwandisa ubomi benkonzo ye-silicon carbide crucibles, ukusetyenziswa okuchanekileyo kunye nokugcinwa kubalulekile. Nanga amanye amacebiso:
Ukufudumala i-crucible: Ngaphambi kokusetyenziswa kokuqala okanye ukusetyenziswa kwakhona, kuyacetyiswa ukuba ufudumeze ngokuthe ngcembe i-crucible kwiqondo lokushisa elisebenzayo ukukhusela ukufudumeza ngokukhawuleza kunye nokugqabhuka.
Kuphephe ukufudumeza okukhawulezayo kunye nokupholisa: Nangona ii-silicon carbide crucibles zinozinzo olulungileyo lokothuka kwe-thermal, utshintsho olukhawulezileyo lobushushu lusenokonakalisa i-crucible.
Ukuhlolwa rhoqo: Ngexesha lokusetyenziswa, jonga rhoqo i-crucible surface ngeempawu zokuqhekeka okanye ukubola, kwaye uxazulule iingxaki ezinokuthi zibekho ngexesha elifanelekileyo.
Ixesha lokuposa: Sep-05-2024