- 01
- Nov
Heerkulka refractory graphite crucible
Graphite crucible refractory heerkulka
Graphite waxa uu leeyahay codsiyo aad u balaadhan waana mid ka mid ah macdanta u adkaysata heerkulka sare. Sida graphite crucibles, waxay ka samaysan yihiin alaabta ceeriin garaafyada dabiiciga ah waxayna sii hayaan sifooyinka asalka ah ee ugu fiican ee garaafka. Waa maxay heerkulka refractory ee graphite crucible?
Faa’iidooyinka graphite crucible:
1. Xawaaraha kulaylka degdega ah, cufnaanta sare, yaraynta wakhtiga kala dirida, kaydi tamarta, waxtarka wax soo saarka sare, iyo badbaadinta xoogga shaqaalaha.
2. Qaab dhismeedka lebbiska ah, caabbinta cadaadis gaar ah iyo xasilloonida kiimikada wanaagsan.
3. Ilaalinta deegaanka, badbaadinta tamarta, iska caabinta daxalka, caabbinta acid iyo alkali, iwm.
Sawirka: graphite crucible
Sida naxaasta birta ah ee caadiga ah, aluminium, dahab, qalin, rasaas, zinc iyo alloys, dhammaantood waa lagu dhalaali karaa godka garaafka. Waxaa la arki karaa in heerkulka graphite crucible uu u adkeysan karo uu ka sarreeyo barta dhalaalka ee birahan.
Barta dhalaalaysa ee garaafka waa 3850°C±50°, barta kulaylkuna waa 4250°C. Graphite waa walax aad u saafi ah, nooca kala guurka ah crystal. Xooggeedu wuxuu kordhiyaa kororka heerkulka. Heerkulka 2000 ° C, xoogga garaafyada ayaa labanlaabmaya. Xitaa haddii ay ku socoto gubasho heerkul aad u sarreeya, miisaan lumisku aad buu u yar yahay, isku-dhafka fidinta kulaylku sidoo kale waa mid aad u yar.
Intee ayuu u sarreeyaa iska caabbinta heerkulka sare ee graphite crucible? Waxa kale oo suurtogal ah in la gaadho 3000 darajo, laakiin tifaftiruhu wuxuu ku talinayaa in heerkulka isticmaalkaagu aanu dhaafin 1400 darajo, sababtoo ah way fududahay in la oksijiyeen oo aan adkaysan karin.