压力机液压保护卸荷阀可靠性研究

Study on the Relief-valve Reliability in Hydraulic Protector of Press

压力机液压保护装置常常由于卸荷阀存在质量问题,影响了其性能。通过跟踪调查生产中的卸荷阀使用现状,对卸荷阀加工过程加以分析,找出了造成问题的主要原因,并针对其制订了解决问题的相应对策,完善了改进措施,同时以四氟圈表面粗糙度这一主要因素为例,具体说明了改进措施的实施过程,最终使卸荷阀的质量达到了使用要求。

Performance of hydraulic protector in press has been influenced frequently by the quality problems of relief-valve.By investigating and analyzing the status of relief-valve in manufacturing progress,the main reason of those problems has been found out and improved measures has been established.At the same time,take the high coarseness seal for example,actualizing progress of improved measures have been done to make relief-valve meet the quality requirements.