介绍了ETC节流阀体产品结构、模具结构及生产过程中出现的废品情况,对模具的进料系统及排溢系统作了分析改进,将压室由50mm调整为60mm,降低了压射比压。并对生产过程中的实际工艺参数进行了测量,发现实际的压射速度远低于原设计值,重新对压射速度进行了调整,从而达到了减少铸件废品的目的。 Introduced the product structure of ETC throttle body, the structure of the mold and the situation of the scrap occurred in the production process. The feeding system and the overflow system of the mold were analyzed and improved. The pressure chamber was adjusted from 50mm to 60mm, Shot pressure. And the actual process parameters in the production process were measured and found that the actual injection speed is much lower than the original design value, re-injection speed was adjusted, so as to achieve the purpose of reducing castings waste.