the characteristics of the Degassing Pipe and rotor as follows To remove H2 gas form molten aluminium, a silicon nitride pipe is used to feed the N2 or Ar gas.As silicon nitirde rotor is used to stir and disperse the gas throughout the molten bath. A. unlike graphite,the silicon nitride is hardly eroded by oxygen at elevated temperatures.This permits long operating life. B.High density and high strength assure reliable and stable operationin high speed rotation. C.High thermal shock resistance allows repeated insertion and withdrawal form molten aluminium in batch operation ---------------------------------------------------------------------------------------------------------------------------------- 氮化硅排气管和转子在熔融冶金铝浴中的使用优势如下： 为去除熔融铝中的多余气体，使用氮化硅管送入氮气或氩气，氮化硅转子用于在这个熔融浴过程中，搅动并分散气体。
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