I-2000 degree yombane yokufudumeza isithando sombane sombane: into yokufudumeza igraphite

Into yokufudumala ye-2000 degree yombane yokufudumala ibhokisi yesithando somlilo ngokuqhelekileyo yenziwe ngegraphite, molybdenum okanye iMoSi2. Izinto zegraphite zihlala zisetyenziswa njengezinto zokufudumeza kwiziko lobushushu obuphezulu, ezidlala indima ebalulekileyo ekuthandeni nasekusetyenzisweni kwezixhobo zokumelana nobushushu obuphezulu kunye neziko lobushushu obuphezulu obukhuselayo. Ingakanani iqondo lokufudumeza into yegraphite? Indawo yokufudumeza yegraphite isetyenziswa kwivacuum kwiqondo lobushushu elingama-2200℃, kwaye inokufikelela kwi-3000℃ kwindawo yokunciphisa umoya okanye umoya ongasebenziyo.

Into yokufudumeza yegraphite: Into yokufudumeza yegraphite yinto yokufudumeza enezinto zegraphite njengomzimba wokufudumeza. I-graphite ineempawu zokuxhathisa ubushushu obuphezulu, ukwanda kwe-thermal ephantsi, kunye nokumelana nokothuka kwe-thermal. Amandla ayo omatshini ayanda ngokunyuka kweqondo lokushisa elityumzayo elingaphantsi kwe-2500 ° C. Malunga ne-1700°C yeyona nto ingcono, idlula zonke iioksidi neentsimbi. Izinto zegraphite zinendawo ephezulu yokunyibilika kunye noxinzelelo lomphunga ophantsi. I-atmosphere ye-vacuum furnace iqulethe i-concentration ephantsi yekhabhoni, eya kusabela nge-oksijini kunye nomphunga wamanzi kwi-gas eseleyo ukuvelisa umphumo wokucoca, okwenza lula kakhulu inkqubo yokucoca kunye nokunciphisa iindleko. Kwinkqubo yokwenziwa kwesithando somlilo, into yokufudumeza esetyenziswa ngokubanzi kunyango lobushushu yigraphite, kubandakanywa nenkxaso yayo yeziko, isikrini sokugcina ubushushu, ipleyiti yokudibanisa, i-nut yokudibanisa, umbhobho we-vent njalo njalo.

Ngokuphuculwa komgangatho wezixhobo zokunyanga ubushushu kunye nokunzulu kweemfuno zenkqubo, iimfuno zeqondo lokushisa kwi-vacuum furnaces ziya zinyuka kwaye ziphezulu. Izinto zokufudumeza zemveli ezifana ne-silicon carbide rods kunye ne-silicon molybdenum rods azikwazi ukuhlangabezana neemfuno eziphezulu zokushisa, kunye neentonga zegraphite ziye zavela njengoko amaxesha afuna.