A Study For Application Of Low Pressure Casting Technology In Large Thin Wall Aircraft Casts Of Aluminum Alloys

The low pressure casting technology is a kind of more advanced cast technology, this technology mechanization and automation level is high, cast quality is stabilized. The research of this paper solves the large and thin wall aerial cast metallurgical quality problem of aluminum alloy using the low pressure casting technology. Through cast structural analysis and the low pressure casting principle analysis, have designed the cast system and course technology scheme of the low pressure casting; Through computer imitate to solidify technical and technology experiment for casting system, casting pressure , casting time, knot shell time, crystallization pressure, dwell time and casting temperature etc. verify or test. Making sure the cast production technology and course technology parameter , have solved cast metallurgical quality problem, and making the qualified rate of the cast to raise to 80%.