阀门灰铸铁件以表面硬度作为其力学性能验收标准的实践与探讨

Analysis of hardness to be acceptance standard for grey valve castings

分析了阀门灰铸铁件以其表面硬度作为铸件力学性能验收标准的可行性和检验方法。介绍了灰铸铁件壁厚与其抗拉强度及表面硬度的对应关系。给出了阀门铸件表面硬度的检测部位及具体操作方法。

In this paper, we analyse and introduce the feasibility and detailed means of the hardness to be the acceptance standard for grey valve castings.