摘要
分析T91、P9取热管的焊接性能,针对其淬硬性强,冷裂纹倾向大的特点,采取焊前预热、严格控制层间温度、焊后及时消氢等工艺措施,避免冷裂纹产生,确保焊接接头性能,并成功应用在生产实践中。
The welding performance of heat removing tube is analyzed.As the tube′s hardenability is very strong and colding crack′s tendency is big,aiming at these characteristics,the effective process measures must be adopted and including the preheat before welding,layer temperature strictly controlling,immedately relieving hydrogen treatment after welding and so on.Thus it can avoid cold crack,ensure the performance of welding joint and is successfully applied in the production practice.
出处
《机械研究与应用》
2011年第3期163-164,167,共3页
Mechanical Research & Application
