I-graphite crucible refractory lokushisa

I-graphite inohlu olubanzi kakhulu lwezinhlelo zokusebenza futhi ingenye yamaminerali amelana nokushisa okuphezulu. Njengezinsimbi ze-graphite, zenziwe ngezinto zokusetshenziswa ze-graphite zemvelo futhi zigcina izakhiwo ezinhle kakhulu ze-graphite. Liyini izinga lokushisa eliphikisayo le-graphite crucible?

Izinzuzo ze-graphite crucible:

1. Isivinini sokuqhuba ukushisa okusheshayo, ukuminyana okuphezulu, ukunciphisa isikhathi sokuhlakazeka, ukonga amandla, ukusebenza kahle kokukhiqiza okuphezulu, nokusindisa abasebenzi.

2. Isakhiwo esifanayo, ukumelana nokucindezeleka okuthile kanye nokuzinza okuhle kwamakhemikhali.

3. Ukuvikelwa kwemvelo, ukonga amandla, ukumelana nokugqwala, ukumelana ne-asidi ne-alkali, njll.

Isithombe: I-graphite crucible

Njengethusi lethu elivamile lensimbi, i-aluminium, igolide, isiliva, umthofu, i-zinc nama-alloys, zonke zingancibilika ngesokhethi ye-graphite. Kuyabonakala ukuthi izinga lokushisa elingamelana ne-graphite crucible liphakeme kunendawo yokuncibilika yalezi zinsimbi.

Iphuzu elincibilikayo legraphite lingu-3850°C±50°, kanti indawo yokubilisa ingu-4250°C. I-graphite iyinto ehlanzekile kakhulu, i-crystal yohlobo lwenguquko. Amandla ayo akhula ngokunyuka kwezinga lokushisa. Ku-2000°C, amandla e-graphite aphindeka kabili. Ngisho noma ithola ukushisa kwe-arc ye-ultra-high, ukuncipha kwesisindo kuncane kakhulu, futhi i-coefficient yokwandisa ukushisa nayo incane kakhulu.

Kuphakeme kangakanani ukumelana nezinga lokushisa eliphezulu kwe-graphite crucible? Kungenzeka futhi ukuthi ufinyelele ama-degree angu-3000, kodwa umhleli uncoma ukuthi izinga lokushisa lakho lokusebenzisa akufanele lidlule ama-degree angu-1400, ngoba kulula ukuba i-oxidized futhi ingapheli.