分析了录音机芯飞轮压铸模的原设计失败的原因，重新设计了用于冷室压铸机的中心浇口、浮动分流的压铸模。

A new die-casting die fit on cold chamber die casting machine was redesigned in the part of the center gate and floating flow-distribution.

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分析Z8040射芯机用覆膜砂热芯盒法制作气缸体前后端面芯及其浇口砂芯优化设计方案。

The paper analyzes the design optimization of core box using coated sand in Z8040 hot box core shoot machine to make the cylinder block cores and sprue cores.

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