Gas porosity is one of the biggest problems in die casting.Caster arm aluminum casting easily generate gas porosity due to its wall thickness and multi-ribs.Through analysis of the product structure

reasonable gating system for exhaust and feeding was designed.Aluminum alloy melting was controlled strictly in the production to ensure the quality of refining.Slow shot die casting technology was adopted with choosing exactly pressure conversion point.Decompression reinforcement and exhausting groove were set on the core of mold deep cavity

reducing effectively gas porosity rate in casting and improving the quality of the caster arm.