The casting of aluminium alloy airport chair technology advantages and disadvantages

by:OUHE     2020-06-03
1. Aluminum alloy airport chair of the casting process of advantages: metal mold cooling speed is faster, casting organization more compact, heat treatment can be strengthened, and mechanical properties to around 15% higher than that of sand mold casting. Metal mold casting, casting quality was stable, the surface roughness is better than sand casting, low rejection rate. Good working conditions, high productivity, easy to master worker. 2. Chair of the casting process of aluminum alloy airport faults: the coefficient of thermal conductivity of metal mold is relatively large, the filling capacity is poor. There is no air permeability metal mold itself. Must take corresponding measures to effectively exhaust. Metal mold with no concession, easy at the time of solidification cracks and deformation.
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