大型水利工地设置压管机的必要性和应用技术吴大勇，安永平一、压管机与工程机械液压软管工程机械液压回路均采用软性钢丝层橡胶软管，优点：对于相对运动的液压元件可以自由伸缩和弯曲，防止因外部撞击对液压管道的破坏，容易安装和更换。缺点：橡胶易老化，容易爆管，管... Large-scale water conservancy site set the need for pipe machine and application technology Wu Dayong, An Yongping First, the pressure pipe and engineering machinery hydraulic hoses Construction machinery hydraulic circuits are used soft steel wire layer hose, advantages: For the relative movement of hydraulic components Can be freely scalable and curved to prevent damage to the hydraulic pipe due to external impact, easy to install and replace. Disadvantages: rubber easy to aging, easy burst tube, tube ...