随着生产的发展,厚钢板冲压件在各种机械产品中的应用日益增多,例如自动化仪表气动执行器中的膜盖,过去在产品设计中,采用灰铸铁件,不仅需要大量的切削加工,而且在组装进行耐压试验时,常常因铸铁件的致密性不好,而发生渗漏现象,造成报废。后改用厚钢板冲压件,如图1,不仅满足了耐压性能的要求,而且又达到省工、省料的目的。 With the development of production, the application of thick steel stamping parts in various mechanical products is increasing day by day. For example, the diaphragm cover in the pneumatic instrument of automation instruments has been used. In the past, gray cast iron parts were used in product design, which not only required a large amount of cutting work, And in the assembly for pressure test, often due to the tightness of castings is not good, and leakage occurs, resulting in scrapped. After the switch to thick steel stamping parts, shown in Figure 1, not only to meet the pressure performance requirements, but also to save labor, save material.