【摘要】 利用特制的双行程液压缸为动力 ,在无缝管三辊联合穿轧生产过程可实现抱杆、抱管和打开三个动作 ,完全保证了钢管穿轧过程的轴向抛出管的配合要求。该项技术已在生产实际中稳定运行五年之久 ,可以在相关机组推广应用更多还原

【Abstract】 The clamping centering device can realize three movement, namely, to clamp mandrel bar, to clamp semifinished tube and to open clamping centering rolls after three rolls piercing & rolling combined process by special hydraulic cylinder of twin-travel. It can pledge completely the requirement to shoot out axially tube after the piercing & rolling combined process. This technology has steady run for five years more in practical production process. It may generalize and apply in correlative assembly.更多还原