Chifukwa chiyani timafunikira graphite m'munda wotentha wa ng'anjo ya kristalo imodzi

Thermal system of the vertical single crystal ng'anjo imatchedwanso thermal field. Ntchito ya graphite thermal field system imatanthawuza dongosolo lonse losungunula zida za silicon ndikusunga kukula kwa kristalo pa kutentha kwina. Mwachidule, ndi wathunthugraphite Kutentha dongosolopokoka silicon imodzi ya crystal.

Malo otentha a graphite nthawi zambiri amaphatikizapo(ma graphite zinthu) mphete yamphamvu, chivundikiro cha kutchinjiriza, chapamwamba, chapakati ndi chotsikirapo chophimba,graphite crucible(zitatu za petal crucible), ndodo yothandizira, thireyi yovunda, electrode, heater,chubu chowongolera, graphite bolt, ndipo pofuna kupewa kutayikira kwa silicon, pansi pa ng'anjo, electrode yachitsulo, ndodo yothandizira, zonse zimakhala ndi mbale zoteteza ndi zophimba zoteteza.

Pali zifukwa zingapo zazikulu zogwiritsira ntchito ma electrode a graphite m'malo otentha:

Zabwino kwambiri conductivity

Graphite ali ndi madulidwe abwino amagetsi ndipo amatha kuyendetsa bwino matenthedwe. Pamene malo otentha akugwira ntchito, mphamvu yamagetsi iyenera kuyambitsidwa kudzera mu electrode kuti ipange kutentha. Ma elekitirodi a graphite amatha kuwonetsetsa kuti zomwe zikuchitika pano zimadutsa mokhazikika, kuchepetsa kutayika kwa mphamvu, ndikupangitsa kuti malo otenthetsera azitentha mwachangu ndikufikira kutentha komwe kumafunikira. Mutha kuganiza kuti, monga kugwiritsa ntchito mawaya apamwamba kwambiri pozungulira, ma electrode a graphite atha kupereka njira yosasinthika yamalo otenthetsera kuti atsimikizire kugwira ntchito kwanthawi zonse kwa malo otentha.

Kukana kutentha kwakukulu

Malo otentha nthawi zambiri amagwira ntchito kumalo otentha kwambiri, ndipo electrode ya graphite imatha kupirira kutentha kwambiri. Malo osungunuka a graphite ndi okwera kwambiri, nthawi zambiri pamwamba pa 3000 ℃, zomwe zimathandiza kuti zikhalebe zokhazikika komanso zogwira ntchito m'munda wotentha kwambiri, ndipo sizidzafewetsa, kupunduka kapena kusungunuka chifukwa cha kutentha kwakukulu. Ngakhale pansi pazikhalidwe zogwira ntchito kwanthawi yayitali, ma elekitirodi a graphite amatha kugwira ntchito modalirika ndikupereka kutentha kosalekeza kwa malo otentha.

Kukhazikika kwamankhwala

Graphite imakhala ndi kukhazikika kwa mankhwala pa kutentha kwakukulu ndipo sikophweka kuchitapo kanthu ndi zinthu zina zomwe zili m'munda wotentha. M'munda wotentha, pangakhale mpweya wosiyanasiyana, zitsulo zosungunuka kapena mankhwala ena, ndipo electrode ya graphite imatha kukana kukokoloka kwa zinthuzi ndikusunga umphumphu ndi ntchito yake. Kukhazikika kwamankhwala kumeneku kumatsimikizira kugwiritsidwa ntchito kwa nthawi yayitali kwa ma elekitirodi a graphite m'munda wotentha komanso kumachepetsa kuwonongeka ndikusintha pafupipafupi kwa ma elekitirodi omwe amayamba chifukwa cha zochita za mankhwala.

Mphamvu zamakina

Ma electrode a graphite ali ndi mphamvu zamakina ndipo amatha kupirira zovuta zosiyanasiyana m'munda wotentha. Pakuyika, kugwiritsa ntchito ndi kukonza malo otentha, ma electrode amatha kugonjetsedwa ndi mphamvu zakunja, monga kugwedeza mphamvu panthawi ya kuika, kupanikizika chifukwa cha kuwonjezereka kwa kutentha, ndi zina zotero. kupsinjika ndipo sikophweka kuthyoka kapena kuwonongeka.

Kuchita bwino kwa ndalama

Malinga ndi mtengo, ma electrode a graphite ndi otsika mtengo. Graphite ndi chilengedwe chochuluka chomwe chili ndi migodi yotsika komanso mtengo wokonza. Nthawi yomweyo, ma elekitirodi a graphite amakhala ndi moyo wautali wautumiki komanso magwiridwe antchito odalirika, amachepetsa mtengo wosinthira pafupipafupi ma elekitirodi. Chifukwa chake, kugwiritsa ntchito ma elekitirodi a graphite m'minda yotentha kumatha kuchepetsa ndalama zopangira ndikuwonetsetsa kuti magwiridwe antchito.