In the process synthesizing reaction and expanding foam are simultaneously completed by method of flash groove.

该工艺通过溢流槽，使聚合反应与发泡同步完成。

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In the pre-forming die, a resistance wall was adopted to build the flash groove and a convex web structure was used to connect the great varying cross-sections.

在该预锻模中，采用阻力墙形式构造飞边槽，采用凸形连皮结构连接多个大变截面。

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Through trial production, the forging defects of the samples were analyzed. The structure of die flash groove was improved. The problem of overlapping in samples was solved.

通过工艺试验及试验件锻造缺陷分析，改进了锻模飞边槽结构，解决了试生产过程中产生的锻造折叠。

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