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我厂630吨自由锻造水压机配套使用的3吨有轨全液压锻造操作机,系我厂自己设计制造。自一九七四年投产使用以来,液压系统发热一直很厉害,尤其是夏季,系统发热更为严重,油温可达70℃左右。由于油温升高,油的粘度下降,造成系统到处漏油。而且,泵的内泄漏增加,容积效率降低,无法工作。油温
Our 630 tons of free forging hydraulic press supporting the use of 3 tons of rail hydraulic forging operation of the machine, the Department of my own factory design and manufacture. Since it was put into operation in 1974, the heating of the hydraulic system has been very powerful. Especially in summer, the system generates more serious heat and the oil temperature can reach about 70 ℃. As the oil temperature increases, the viscosity of the oil drops, causing the system to leak oil everywhere. Moreover, the internal pump leakage increases, the volumetric efficiency is reduced, can not work. Oil temperature