Graphite crucible refractory mocheso

Graphite e na le mefuta e mengata haholo ea lisebelisoa ‘me ke e’ ngoe ea liminerale tse hanyetsanang le mocheso o phahameng. Joaloka li-crucible tsa graphite, li entsoe ka lisebelisoa tsa tlhaho tsa graphite ‘me li boloka litšobotsi tsa pele tse ntle tsa graphite. Thempereichara ea refractory ea crucible ea graphite ke efe?

Melemo ea graphite crucible:

1. Lebelo le potlakileng la ho tsamaisa mocheso, boima bo phahameng, ho fokotsa nako ea ho qhibiliha, ho boloka matla, katleho e phahameng ea tlhahiso, le ho boloka basebetsi.

2. Sebopeho se ts’oanang, ho hanyetsa khatello e khethehileng le botsitso bo botle ba lik’hemik’hale.

3. Tšireletso ea tikoloho, ho boloka matla, ho hanyetsa kutu, ho hanyetsa acid le alkali, joalo-joalo.

Setšoantšo: Graphite crucible

Joaloka koporo ea rona e tloaelehileng ea tšepe, aluminium, khauta, silevera, lead, zinki le li-alloys, kaofela li ka qhibiliha ka sokete ea graphite. Ho ka bonoa hore mocheso oo graphite crucible e ka o mamellang o phahametse sebaka se qhibilihang sa litšepe tsena.

Sebaka se qhibilihang sa graphite ke 3850 ° C±50 °, ‘me ntlha e belang ke 4250°C. Graphite ke ntho e hloekileng haholo, mofuta oa kristale oa phetoho. Matla a eona a eketseha ka ho eketseha ha mocheso. Ka 2000 ° C, matla a graphite a imena habeli. Esita le haeba e e-na le mocheso o phahameng oa mocheso oa mocheso o phahameng, ho lahleheloa ke boima ba ‘mele ho nyane haholo,’ me coefficient ea ho atolosa mocheso le eona e nyenyane haholo.

Ho hanyetsa mocheso o phahameng oa graphite crucible ho phahame hakae? Hape hoa khoneha ho fihla likhato tse 3000, empa mohlophisi o khothalletsa hore mocheso oa hau oa tšebeliso ha oa lokela ho feta likhato tse 1400, hobane ho bonolo ho oxidized le ho se tšoarelle nako e telele.