The casting structure and development difficulties of automobile engine chain cover were introduced.Through process analysis and theoretical calculation,the gating system and overflow system of the casting were reason-ably designed,and the two-way multi branch sprue was adopted to realize rapid filling,so as to meet the appearance and internal quality requirements of the casting.For the lifting lug area with the local thick wall and easily formed shrinkage porosities,the embedded casting process was used.By using inserts for die-casting production,local hot spots of the castings are eliminated,and the wall thickness of castings is reduced,preventing shrinkage cavities of castings.
Die Casting MoldGating SystemOverflow SystemShrinkage PorositiesEmbedded Casting
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