Graphite cruciblechinhu chakakosha chigadzirwa chinoita basa rakakosha mukunatswa kwegoridhe, sirivheri, mhangura uye mamwe masimbi anokosha.Kunyangwe vanhu vazhinji vangave vasina kujairana nazvo, kugadzirwa kwemagraphite crucibles kunosanganisira akati wandei matanho akaomarara kuti ave nechokwadi chemhando yepamusoro uye simba remagetsi rechigadzirwa chekupedzisira.Muchikamu chino, isu tichaongorora zvakadzama zvedanho rega rega rinobatanidzwa mune graphite crucible kugadzira maitiro.
Matanho ekutanga ekugadzira graphite crucibles anosanganisira kuomesa.Mushure mekunge crucible uye zvikamu zvayo zvinotsigira pendant zvagadzirwa, zvinoongororwa zvinoenderana nehafu-yakapera chigadzirwa zviyero.Cheki iyi inovimbisa kuti vanhu vanokwanisa chete ndivo vanoenda kumatanho anotevera.Mushure mekugadzirisa, ivo vanopinda maitiro ekupenya, umo crucible surface yakaputirwa ne glaze.Iyi glaze layer inoshandisa zvinangwa zvakati, zvinosanganisira kuwedzera density uye simba remuchina weiyo crucible, pakupedzisira inovandudza huwandu hwayo hwese.
Iyo yekupfura nhanho chikamu chakakosha chekugadzira maitiro.Inosanganisira kuisa pasi girafu crucible kune yakakwirira tembiricha muchoto, nokudaro kusimbisa chimiro che crucible.Iyi nzira yakakosha kuve nechokwadi chekugara uye kuvimbika kweiyo crucible panguva yekunatsa.Nheyo yekupfura inogona kukamurwa kuita nhanho ina dzakasiyana kuti unzwisise zviri nani shanduko dzinoitika mucrucible chimiro panguva iyi.
Danho rekutanga ndiro preheating uye kupfura, uye tembiricha muchoto inochengetedzwa pa100 kusvika 300°C.Panguva ino, hunyoro hwasara mucrucible hunobviswa zvishoma nezvishoma.Vhura skylight yemoto uye udzikise mwero wekudziya kudzivirira kushanduka kwekushisa kamwe kamwe.Kudzora tembiricha kwakakosha panguva ino, sezvo hunyoro hwakawandisa hunogona kukonzera kuti crucible iparare kana kuputika.
Danho rechipiri idanho rekudzikira-kupisa, rine tembiricha ye400 kusvika 600°C.Sezvo honi inoramba ichipisa, mvura yakasungwa mukati me crucible inotanga kuputsa uye kubuda.Izvo zvikamu zvikuru A12O3 uye SiO2, izvo zvakambosungwa kune ivhu, zvinotanga kuvapo mune yakasununguka.Nekudaro, zvinofanirwa kucherechedzwa kuti iyo glaze layer pamusoro peiyo crucible haisati yanyungudika.Kuti udzivise kushamisika kupi zvako, chiyero chekupisa chinofanira kuramba chichinonoka uye chakadzikama.Kukurumidza uye kusaenzana kupisa kunogona kuita kuti crucible iparadze kana kudonha, ichikanganisa kuvimbika kwayo.
Kupinda padanho rechitatu, tembiricha yepakati tembiricha inowanzoitika pakati pe700 ne900°C.Panguva ino, iyo amorphous Al2O3 muvhu inoshandurwa zvishoma kuita Y-mhando yecrystalline Al2O3.Iyi shanduko inowedzera kuwedzera kurongeka kwechimiro checrucible.Zvakakosha kuchengetedza tembiricha chaiyo panguva ino kudzivirira chero mhedzisiro isingadikanwi.
Danho rekupedzisira inzvimbo yekupisa yekupisa, ine tembiricha iri pamusoro pe1000°C.Panguva ino, iyo glaze layer inopedzisira yanyunguduka, kuve nechokwadi chekuti crucible surface yakatsetseka uye yakavharwa.Tembiricha dzepamusoro dzinobatsirawo pakuvandudzwa kwese kweiyo crucible's mechanical simba uye kusimba.
Zvese mune zvese, maitiro ekugadzira e graphite crucibles anosanganisira akati wandei matanho ekuchenjera.Kubva pakuomesa uye kuongorora chigadzirwa chehafu-chakapedzwa kusvika pakupenya uye kupfura, nhanho imwe neimwe yakakosha kuve nechokwadi chemhando uye kuvimbika kweiyo yekupedzisira girafu crucible.Kuomerera kumatanho ekudzora tembiricha uye kuchengetedza mwero wekudziya kwakakodzera kwakakosha kudzivirira chero hurema hunogona kuitika kana tsaona.Mhedzisiro yemhando yepamusoro yegraphite crucible inogona kushingirira kukwenenzvera kwakasimba kwesimbi dzakakosha.
Nguva yekutumira: Nov-29-2023