The early losing effectiveness causes of the superheater pipe welding joint were investigated and analysed. 针对某电厂异种钢焊接接头高温早期失效的过热器管件进行了调查研究和失效分析。
The equipment of ultrasonic peening for increasing fatigue strength of a welded joint is imposed and a corresponding ultrasonic peening prototype is manufactured. 对超声波冲击以提高焊接接头疲劳强度的装置进行了研究，研制出一台可用于实际冲击处理的样机。
