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    长臂挖掘机怎样正确而合理的选用液压油


    选用液压油时,可根据液压元件生产厂样本和说明书所推荐的品种号数来选用液压油,或者根据液压系统的工作性质、工作环境、液压元件种类及经济性等因素全面考虑.一般是先确定适用的黏?#30830;?#22260;,再选择合适的液压油品种.
      2 同时,还要考虑液压系统工作条件的特殊要求,如在寒冷地区工作的系统则要求油的黏度指数高、低温流动性好、凝固点低;

      3 伺服系统则要求油质纯、压缩性小;高压系 统则要求油液抗磨性好.

      4 在选用液压油时,黏度是一个重要的参数.液压油牌号的选择主要是根据工作条件选用适宜的黏度.黏度的高低将影响运动部 件的润滑、缝隙的泄漏以及流动时的压力损失、系统的发热温升等.
      5 所以,在环境温度较高、工作压力高或运动速度?#31995;?#26102;,为减少泄漏,应选用黏度较高的液压油,否则相反.

    长臂挖掘机怎样正确而合理的选用液压油


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