Sometimes lower die temperatures can create a cool layer of resin on the inner surface of the die that creeps slowly to the die exit and then separates from the bulk flow, causing buildup.

有时，较低的口模温度会在口模内表面上生成一个冷却的树脂层，这个树脂层慢慢地移出到口模出口，然后与本体料流分离，从而引起积料。

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The position of overflow and thicker inner gate was optimized to reduce the probabilities of cold shut, flow marks and slag. Furthermore, the surface quality of the die casting improves.

提出了在恰当位置设置溢流槽和增大内浇口厚度等改进措施，从而有效降低了铸件冷隔、流痕、夹渣等缺陷的产生，提高了压铸件表面质量。

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