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本文通过设计研制及可靠性试验,证明了抽油机连杆采用对接环焊缝的疲劳强度比传统的波浪形搭接焊缝的疲劳强度高得多,这种新结构值得推广。
In this paper, through the design and development and reliability tests, it is proved that the fatigue strength of butt welds of connecting rod of pumping unit is much higher than the fatigue strength of conventional corrugated lap welds. This new structure is worthy of promotion.