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很多压制过程需要压机具有良好的保压性能。对于采用停车保压系统的中小型油压机来说,往往因保压性能降低不能适应加工要求而需要修理。由于影响保压性能的因素较多,因而如何确定合理的修理程序和正确的修理方法是保证修理质量和加快修理过程的重要环节。对于需要修理的中小型油压机,在压机运行过程中可能产生下列几种情况: 1.压力不能上升,油缸没有动作。产生的原因可能是油泵打出的油未进入工作油缸就流回油箱。此时应检查安全阀、卸荷阀、顺序阀等是否经过
Many pressing processes require the press to have good packing properties. For small and medium-sized hydraulic press parking pressure system, often due to the pressure reducing performance can not meet the processing requirements and need to be repaired. Because of the many factors that affect the packing performance, how to determine a reasonable repair procedure and the correct repair method is to ensure the quality of repair and speed up the repair process an important part. For the need to repair small and medium-sized hydraulic machine, the press operation may produce the following situations: 1. Pressure can not rise, the cylinder did not move. The reason for this may be that the oil from the pump returns to the tank without entering the working cylinder. At this time should check the safety valve, unloading valve, sequence valve and so on