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一、绪言 为防止铝合金熔液吸收氢气,一般采用熔剂覆盖金属液表面。但由于熔剂的使用条件与效果的关系尚不十分清楚,因此,现场使用时往往没有充分发挥熔剂的最佳效果。 本文分析了熔炼条件对熔剂覆盖效果的影响。覆盖熔剂有两种,一种是覆盖在金属液面时,长时间呈液态的湿润性熔剂,另一种是覆盖后伴有放热反应而固化的放热性熔剂。一般考虑到操作性能良好,大多使用放热性熔剂,故本文以放热性熔剂为对象。
I. INTRODUCTION To prevent hydrogen from being absorbed by the aluminum alloy melt, flux is generally used to cover the surface of the molten metal. However, due to the use of flux conditions and the relationship between the effect is not yet clear, therefore, the field often do not take full advantage of the best effect of flux. This article analyzes the effect of melting conditions on flux coverage. There are two kinds of flux cover, one is covered in the metal surface, the liquid was long-term wetting flux, the other is covered with an exothermic reaction after curing exothermic flux. Generally considering the good operating performance, most of the use of exothermic flux, so this article to the exothermic flux as the object.