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Talking about the solution to shrinkage cavity in aluminum alloy die casting

Aug 02,2022


Shrinkage cavities are cavities caused by insufficient internal compensation of die castings during the condensation process. The reasons are as follows


①Pouring temperature is too high


②Low injection pressure


③ The structure of the casting has a sharp change in the parts or sections where metal accumulates


④The inner gate is small

The solution to shrinkage


①Change the casting structure to eliminate metal aggregation and large changes in cross-section


②When possible, reduce the pouring temperature


③Increase the injection pressure


④ Properly improve the gating system to better transmit the pressure


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