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液压牛头刨床B690型的开停阀进油端是采用薄壁管扩口式连接的方式,工作中经常容易在铜管扩口处出现裂纹,造成漏油。轻者引起溢流阀调定压力下降,重者使液压系统不工作,据我们几年来维修资料统计表明;短则数月,长者也不足一年就出现故障。频繁地重复出现故障,严重地影响了生产。为此特作了专门的探讨,现分述如下: 1.原因分析: (1)制造原因由于该铜管扩口是由外径为φ10mm的拉制紫铜管制成,为了降低硬度,
Hydraulic shaper B690 type open and close valve into the oil is the use of thin-walled tube flare connection, often easy to work in the brass flare at the crack, resulting in oil spills. Light pressure relief valve caused by setting pressure drops, the heavy hydraulic system does not work, according to our statistics over the years to maintain statistics show that as short as a few months, the elderly have less than a year of failure. Frequent repetitive failures have a serious impact on production. This special made a special discussion, are as follows: 1. Analysis: (1) manufacturing reasons As the brass tube flared by the outer diameter of φ10mm made of drawn copper, in order to reduce the hardness,