Graphite crucible refractory kub

Graphite muaj ntau yam kev siv thiab yog ib qho ntawm cov minerals uas tiv taus qhov kub thiab txias. Zoo li graphite crucibles, lawv yog ua los ntawm ntuj graphite raw cov ntaub ntawv thiab khaws cov khoom qub zoo ntawm graphite. Dab tsi yog qhov kub thiab txias ntawm graphite crucible?

Qhov zoo ntawm graphite crucible:

1. Kev kub ceev ceev ceev, siab ceev, txo lub sij hawm dissolution, txuag lub zog, ntau lawm efficiency, thiab txuag cov neeg ua haujlwm.

2. Uniform qauv, tshwj xeeb strain kuj thiab zoo tshuaj stability.

3. Kev tiv thaiv ib puag ncig, txuag hluav taws xob, tiv thaiv corrosion, acid thiab alkali tsis kam, thiab lwm yam.

Daim duab: Graphite crucible

Zoo li peb cov hlau tooj liab, txhuas, kub, nyiaj, txhuas, zinc thiab alloys, lawv tuaj yeem yaj tag nrho los ntawm lub qhov (socket) graphite. Nws tuaj yeem pom tau tias qhov kub thiab txias uas cov graphite crucible tuaj yeem tiv taus siab tshaj qhov melting point ntawm cov hlau no.

Lub melting point ntawm graphite yog 3850 ° C ± 50 °, thiab boiling point yog 4250 ° C. Graphite yog cov khoom ntshiab heev, hloov pauv hom siv lead ua. Nws lub zog nce nrog qhov nce ntawm qhov kub thiab txias. Thaum 2000 ° C, lub zog ntawm graphite ob npaug. Txawm hais tias nws dhau los ntawm qhov kub thiab txias arc hlawv, qhov poob qis me me, thiab thermal expansion coefficient kuj tsawg heev.

Lub siab kub tsis kam ntawm graphite crucible yog dab tsi? Nws kuj tseem tuaj yeem ncav cuag 3000 degrees, tab sis tus editor pom zoo tias koj qhov kev siv kub yuav tsum tsis pub tshaj 1400 degrees, vim nws yooj yim rau oxidized thiab tsis ruaj.