Molybdenum CrucibleQhov zoo thiabLtab tom
Qhov Zoo:
- Ntau ruaj dua graphite cruciles, tsis tshua hnov mob nrog molten cov hlau.
- Kev kub ceev ntau dua li ceramic crucibles, zoo dua thermal poob siab tsis kam.
Txwv:
- Cov oxidation kub: yuav tsum tau siv rau hauv cov tshuab nqus tsev lossis hauv roj (xws li Argon).
- Tus nqi siab: Molybdenum yog cov hlau tsis tshua muaj hlau thiab tsis yooj yim ua.
Kev sib piv ntawm Lwm Yam Materaits
- Tungsten Crucible: muaj qhov siab dua melting taw tes (3422 degree), tab sis ntau nkig thiab kim.
- Graphite Crucible: Tus nqi qis, tab sis yooj yim npaum li cas los ua qee cov hlau, lub zog txo qis ntawm cov kub.
- Ceramic crucible: muaj zog corrosion tsis kam, tab sis qeeb cua kub conduction thiab cov neeg txom nyem thermal tsis kam.
|
Khoom |
Qhov siab tshaj plaws kev ua haujlwm kub (qib) |
Oxidation tsis kam |
Corrosion Kuj |
Tus nqi |
Muaj cov xwm txheej muaj feem xyuam |
|
Molybdenum Crucible |
~ 2100 (nyob rau hauv lub tshuab nqus dej lossis cov roj av roj av) |
Phem |
Zoo tshaj |
Siab |
Ultra-siab Purity / siab ua phem yaj |
|
Tungsten crucible |
~ 3000 degree (nyob rau hauv lub tshuab nqus tsev lossis hauv cov roj tiv thaiv |
Phem |
Zoo tshaj |
Siab |
Ultra-siab melting taw tes, siab Sintering |
|
Graphite crucible |
~ 3000 (hauv qab cov roj kev tiv thaiv) |
Nruab nrab |
Nruab nrab |
Qi |
Tsis-oxidizing kub ib puag ncig |
|
Ceramic crucible |
~1800 |
Zoo tshaj |
Zoo tshaj |
Nruab nrab |
Oxidizing cua / Corrosive yaj |
|
Platinum crucible |
~1600 |
Zoo tshaj |
Zoo tshaj |
Siab heev |
Kuaj Kev Ntsuas PreCence |
Selection thiabSugungion
Kev kub siab nqus ntxiab / Inert ib puag ncig:Molybdenum crucible yog nyiam, tshwj xeeb tshaj yog thaum cov khoom siv purity muaj kev koom tes.
Oxidizing huab cua lossis nquag kub thiab txias txias:Xav txog Alumina lossis silicon nitride ceramic crucibles.
Tus nqi-rhiab nruab nrab thiab qhov kub siab tshaj plaws:Graphite crucles muaj kev lag luam ntau dua, tab sis yuav tsum zam kev zam cov kev tawm tsam nrog cov hlau ua ub no
