在役设备微小试样取样机的开发与应用

• 作 者: 沈睿 惠虎 李培宁
• 机 构: 华东理工大学机械与动力工程学院,
• 出 处: 中国特种设备安全
• 发表日期: 2010年08期
• 关键词: 热影响层 在役设备 小冲杆试验 试样 电火花 微小试样 小试样 压力容器用钢 性能测试结果 取样

本文介绍了在役设备微小试样取样机的开发,该取样机体积小、重量轻、易于安装,能够有效的从在役设备表面应用电火花成型技术取得微小的、厚度薄的小试样。对典型压力容器用钢16MnR钢板进行了取样研究表明,取样热影响层很小,热影响层和熔化层总厚度小于10μm,小冲杆实验结果表明小冲杆力学性能测试结果和传统拉伸试样测得的力学性能几乎一致。

This article presents the development of a small specimen sampler for in-service equipment that is small, light weight and easy to install, making it possible to obtain small, thin, thin specimens efficiently from EDM surfaces on service equipment. A typical sample of 16MnR steel for pressure vessels was sampled. The results show that the sample heat affected zone is very small and the total thickness of the heat affected zone and the melted zone is less than 10μm. The results of the small punch test show that the mechanical properties of the small punch test and the traditional tensile test The measured mechanical properties are almost the same.