| 东风型内燃机车排气阀等离子焊修次数合理性的探讨 |
| |
| 引用本文： | 苏建新 孙向东. 东风型内燃机车排气阀等离子焊修次数合理性的探讨[J]. 大连铁道学院学报, 1989, 10(1): 82-89 |
| |
| 作者姓名： | 苏建新 孙向东 |
| |
| 作者单位： | 大连铁道学院焊接教研室，大连铁道学院焊接教研室，北京丰台机务段 |
| |
| 摘 要： | 本文采用焊接热模拟方法,研究了机车柴油机排气阀(基材为4Cr14Ni14W2Mo 钢)等离子堆焊修复次数,以及“堆焊+时效”次数对其热影响区的过热区组织和性能的影响.试验结果表明,对排气阀的等离子焊修次数以不超过3次为宜.
|
| 关 键 词： | 内燃机车 排气阀 等离子焊 修理 |
On Reasonobleness of Piasma-Welding Repair Times of Exhaust-Valve far Diesel Locomotive Dongfeng Type 4 |
| |
| Su Jianxin Cong Guozhi Sun Xiangdong. On Reasonobleness of Piasma-Welding Repair Times of Exhaust-Valve far Diesel Locomotive Dongfeng Type 4[J]. Journal of Dalian Railway Institute, 1989, 10(1): 82-89 |
| |
| Authors: | Su Jianxin Cong Guozhi Sun Xiangdong |
| |
| Affiliation: | Su Jianxin Cong Guozhi Sun Xiangdong |
| |
| Abstract: | Applying the welding thermo-simulation technique,authors research the effects of plasma -surfacing repair times and(surfacing+aging)times of exhaust-valve for diesel engine on the overheated-zone structures and performances of HAZ.The results show that it is inadvisable for the plasma-welding repair times to surpass 3 times. |
| |
| Keywords: | Diesel locomotives exhaust valves plasma arc welding surfacing repairs/thermal simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
