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用过滤法和过滤—除气法取代氯气除气剂和氮—氯气熔剂,以去除熔铝中的氢和夹杂物,已应用多年。通过一种平片状矾土过滤床(矾土筛号为-3～+6)的过滤法(图1),只能除去夹杂
It has been used for many years by filtering and degassing instead of chlorine degassers and nitrogen-chlorine fluxes to remove hydrogen and inclusions in the aluminum melt. Through a flat sheet of alumina filter bed (alumina screen size -3 ~ +6) filtration (Figure 1), only to remove inclusions