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.

• 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。