| 钢轨移动闪光焊接接头软化问题的研究 |
| |
| 引用本文： | 崔冬芳,王艳华,胡智博,安天生.钢轨移动闪光焊接接头软化问题的研究[J].铁道技术监督,2009,37(12):6-9,13. |
| |
| 作者姓名： | 崔冬芳 王艳华 胡智博 安天生 |
| |
| 作者单位： | 铁道部产品质量监督检验中心,北京,100081 |
| |
| 摘 要： | 通过硬度测定、热影响区宏观形貌和微观组织观察，对移动闪光焊接接头软化问题进行了试验研究。研究结果表明，焊接接头软化区与正火热影响区相对应，软化区内的微观组织为粒状珠光体；接头软化是由于正火热处理加热不足所致。同时，提出预防焊接接头软化问题的措施。
|
| 关 键 词： | 钢轨焊接接头 软化区 热影响区 粒状珠光体 |
Study on the Softening Problem of Mobile Flash-butt Welding Joint |
| |
| Abstract: | The research on softening problem of mobile flash-butt welding joints is conducted by hardness, heat affected zone shape and metallographic tests. The results show that the softened zone responds to normalizing heat affected zone which is made up of granular pearlite microstructure. The softening is due to the inadequate heating in normalizing heat treatment. The measures to solve the softening problem are also proposed in this paper. |
| |
| Keywords: | Welding Joint of Rail Softened Zone Heat Affected Zone Granular Pearlite |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
