液压系统故障一般没有机械故障直观、易检查。在一般使用厂不可能备有昂贵的仪器、仪表和传感器等检测装置,而压力表几乎每个工厂都有,每台液压设备上都有装备。故本文介绍如何利用压力表检测液压系统故障的途径。一、利用压力表确定液压系统故障的区域或范围。我厂一台J1513压铸机在压射时,经常出现二次动作,废品率超过50%以上。根据压射原理图图1,在压射时,表④增压压力 Hydraulic system failure is generally no mechanical failure intuitive and easy to check. In the general use of the factory can not be equipped with expensive instruments, instruments and sensors and other testing devices, and pressure gauges are almost every factory, each hydraulic equipment are equipped. Therefore, this article describes how to use pressure gauge to detect hydraulic system failure. First, the use of pressure gauge to determine the hydraulic system failure area or range. I plant a J1513 die-casting machine in the injection, the two acts often occur, the rejection rate of more than 50%. According to the schematic diagram of the injection diagram 1, during injection, the table ④ supercharging pressure