铝熔体的氧化吸气与旋转喷吹氩气精炼

Gas Pick-up & Oxidation of Al Melt & Refine by Revolving Argon-Blow

铝合金熔炼时，氧化和吸气严重。氢气是铝熔体中的主要气体，存在于氧化夹渣的裂缝和孔洞处。用旋转喷氩气精炼铝熔体，并正确选用工艺参数，能使高强度优质铝合金砂型铸件的力学性能达到标准的规定。

There exist volume oxidation and gas pick-up when Al alloy is melt. Hydrogen is the main existing in gap and hole of oxides. Using refine by revolving argon-blow with proper technology parameters enables mechanical property of sand molded castings of high strength Al alloy to reach the level required by the standard.