Zithunzi za Graphite Crucibles

Zithunzi za Graphite Cruciblesperekani zinthu zingapo zomwe zimawapangitsa kukhala osankhidwa kwambiri pakugwiritsa ntchito kutentha kwambiri, makamaka pakusungunula zitsulo ndi ntchito zoyambira. Nazi zinthu zazikuluzikulu zakuthupi ndi mafotokozedwe omwe amatanthauzira magwiridwe antchito a crucibles:

1. Thermal Conductivity
   • Zojambula za graphitekuwonetsa matenthedwe abwino kwambiri, kuwonetsetsa kugawidwa kwa kutentha kofanana. Katunduyu amachepetsa malo otentha ndikuwonetsetsa ngakhale kusungunuka, kuzipangitsa kuti zikhale zogwira mtima kwambiri pazitsulo monga golide, mkuwa, ndi aluminiyamu.
   • Thermal conductivity imatha kufika pamtengo wofikira 100 W/m·K, womwe ndi wapamwamba kwambiri poyerekeza ndi zida zakale zokanira.
2. Kulimbana ndi Kutentha Kwambiri
   • Zojambula za graphiteamatha kupirira kutentha kwambiri, mpaka 1700°Cm'malo opanda mpweya kapena mpweya. Izi zimawathandiza kukhalabe okhulupilika m'malo ovuta popanda kunyozeka.
   • Ma crucibles awa amakhalabe okhazikika komanso osagwirizana ndi mapindikidwe pansi pa kutentha kwakukulu.
3. Low Coefficient of Thermal Expansion
   • Zida za graphite zili ndi aotsika coefficient wa kukulitsa matenthedwe(otsika mpaka 4.9 x 10 ^ -6 / ° C), kuchepetsa chiopsezo cha kusweka kapena kutentha kwa kutentha pamene akukumana ndi kusintha kwachangu kwa kutentha.
   • Izi zimapangitsa kuti ma graphite crucibles akhale oyenera kwambiri pamachitidwe omwe amaphatikiza kutenthetsa mobwerezabwereza ndi kuzizira.
4. Kukaniza kwa Corrosion
   • Graphite ndi inert mankhwala ndi amaperekakukana kwambiri kwa zidulo zambiri, alkalis, ndi zinthu zina zowononga, makamaka pakuchepetsa kapena kusalowerera ndale. Izi zimapangitsa ma graphite crucibles kukhala abwino kwa malo opangira mankhwala ankhanza poponya zitsulo kapena kuyenga.
   • Kukana kwa zinthuzo ku makutidwe ndi okosijeni kumatha kupitilizidwa ndi zokutira kapena chithandizo chapadera, kuwonetsetsa kuti nthawi yayitali yautumiki.
5. Mayendedwe Amagetsi
   • Monga kondakitala wabwino wamagetsi, zida za graphite ndizoyenera kugwiritsa ntchito kutentha kwa induction. Kuthamanga kwamagetsi kwapamwamba kumathandizira kugwirizanitsa bwino ndi machitidwe olowetsamo, kuonetsetsa kutentha kwachangu komanso kofanana.
   • Katunduyu ndiwothandiza kwambiri pamachitidwe ofunikirazitsulo za heater induction, kupititsa patsogolo magwiridwe antchito m'mafakitale monga ntchito zopangira zida kapena zitsulo.
6. Ukhondo ndi Mapangidwe a Zinthu
   • Ma crucibles a carbon graphite apamwamba kwambiri.
   • Zojambula za silicon carbide graphite cruciblesPhatikizani katundu wa graphite ndi silicon carbide, kupereka mphamvu yopanga, maxidation kukana, komanso malo okwera, oyenera kusintha zinthu mopitilira muyeso.
7. Kukhalitsa ndi Moyo Wautali
   • Ma graphite crucibles oponderezedwa ndi isostaticAmapangidwa kuti azikhala ngati yunifolomu ndi mphamvu, zomwe zimapangitsa kuti patali ndi moyo wautali komanso kuchepetsedwa kulephera kwa chuma pamakhala kutentha kwambiri. Izi crucibles komanso kugonjetsedwa ndi kukokoloka ndi mawotchi kuwonongeka.

8. Mapangidwe a Chemical:

   • Mpweya (C)20-30%
   • Silicon Carbide (SiC)50-60%
   • Alumina (Al2O3)3-5%
   • Ena3-5%
9. Makulidwe Osinthika ndi Mawonekedwe
   • Ma graphite crucibles athu amapezeka mumitundu yosiyanasiyana komanso masinthidwe. Kuchokerazitsulo zazing'ono za graphite(zoyenera kuyesa zitsulo za lab) kuzitsulo zazikulu zopangidwira kusungunula kwa mafakitale, timapereka mayankho oyenerera pa ntchito iliyonse.
   • Mizere ya graphite cruciblesndi crucibles ndikuthira spoutsimathanso kusinthidwa kuti ikhale ndi zofunikira zenizeni zoponyera, kuwonetsetsa kuti zikhale zosavuta komanso zogwira ntchito pakuwongolera zitsulo.