Boron Nitride Crucible Application Range Thiab Siv
Sep 04, 2024
Boron nitride ceramic crucible yog siv ntawm 1800 degrees nyob rau hauv lub tshuab nqus tsev thiab 2100 degrees nyob rau hauv huab cua tiv thaiv. Nitrogen lossis argon cua siv qhov zoo tshaj plaws, lub neej ntev tshaj plaws.
Lub boron nitride crucible muaj zog tiv thaiv thermal shock, 1500 degrees tsis tawg, 1000 degrees nyob rau hauv lub qhov cub rwb thaiv tsev 20 feeb kom tshem tawm cov cua txias tsis tu ncua rov qab ntau pua zaus yam tsis muaj cracking. Kev ceev faj rau kev siv:
1 Cov huab cua kub tsis tuaj yeem tshaj 1000 degrees, ntau tshaj 1000 degrees boron nitride thiab oxygen contact nto yuav oxidized flaking.
2 Boron nitride yog ib qho yooj yim nqus dej noo, lub crucible tsis tuaj yeem khaws cia rau hauv qhov chaw ntub dej, tsis tuaj yeem ntxuav, tuaj yeem tshem tawm ncaj qha nrog ntawv xuab zeb lossis txhuam nrog cawv.
3 Daim ntawv thov kev taw qhia ntawm boron nitride crucible
Cov ntaub ntawv muaj]:
1. Ferrous hlau: hlau, tooj liab, txhuas, npib tsib xee, magnesium, bismuth, zinc, thiab lwm yam., alloy FE-CO-NI-SI CO-ZR-NB
2. Nws tsis hnov mob nrog dej thiab kua qaub ntawm chav tsev kub. Maj mam hydrolyzed nrog dej los tsim boric acid thiab ammonia.
3. Tsis tshua muaj av, nitrides
Cov ntaub ntawv siv tsis tau
1. Antimony trioxide, chromium heptaoxide, molybdenum trioxide, arsenic trioxide, titanium carbide thiab lwm yam.
2. High lead iav glaze melting nyob rau hauv cov huab cua ntawm 800-950 degrees ntawm BN yaig, tab sis tsis muaj cov tshuaj tiv thaiv nyob rau hauv nitrogen los yog inert gas tiv thaiv.
3. Boron phosphate nyob rau hauv nitrogen ntawm 1400 degrees erodes boron nitride, thiab reacts nrog kub concentrated los yog molten alkali thiab kub chlorine gas.
Shengyang New Material Co., Ltd. tau cog lus rau kev tsim cov boron nitride thiab boron nitride ua cov khoom, thiab tuaj yeem kho ntau yam boron nitride insulating ceramic qhov chaw raws li cov neeg siv khoom xav tau. Tiv tauj peb yog tias tsim nyog.
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