Lub cev Vapor Deposition Tshuab
Tungsten muaj cov kua qaub zoo thiab alkali tsis kam ntawm chav sov, tab sis nws yooj yim oxidized nyob rau hauv cov huab cua ntub, yog li nyias tungsten hlau tsis tuaj yeem khaws cia rau hauv qhov chaw ntub dej ntev dhau.
Kev ceev faj rau tungsten hlau hauv lub tshuab nqus tsev vacuum:
Tungsten muaj cov kua qaub zoo thiab alkali tsis kam ntawm chav tsev kub, tab sis nws yooj yim oxidized hauv huab cua, yog li nyias tungsten hlau tsis tuaj yeem khaws cia rau hauv qhov chaw ntub dej ntev ntev. Tsis tas li ntawd, tungsten pib hnov mob nrog carbon los tsim tungsten carbides nyob ib ncig ntawm 1200 degree, yog li xyuam xim rau qhov teeb meem no hauv kev kho hydrogen-hlawv ntawm cov filament, txwv tsis pub cov tungsten yuav hnov mob nrog cov graphite lubricant rau ntawm qhov chaw, thiab cov filament yuav. ua nkig thiab tawg.
Daim ntawv thov
Parameter
Peb lub tuam txhab
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