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通过焊缝跟踪试验 ,冷扩径原理试验和工艺试验 ,确认了螺旋焊管的可扩性 ,取得了设计依据及相关参数变化规律 ,并提出了扩径力的计算方法以及步进式冷扩径机的结构、技术特性及工艺 ,指出该系统设计具有运转平稳、安全可靠和节能等特点。
Through the weld tracking test, cold expansion principle test and process test, the scalability of the spiral welded pipe was confirmed, the design basis and the variation rule of the related parameters were obtained, and the calculation method of the expanding diameter force and the step-type cold expanding diameter Machine structure, technical characteristics and technology, pointed out that the system design has smooth operation, safety and reliability and energy saving.