电磁换向阀的基本功用是换向,它可以由按钮开关、限位开关、行程开关等电器元件的电讯号控制,操纵和控制都比较方便,所以被广泛地应用于机床、冶金、矿山机械等设备的液压系统中。电磁换向阀用久了,常会发生不换向的现象,有时虽然换向,但油液流量不足,致使其它元件不能正常工作。发生这种现象修理时,打开电磁阀猛一看,一切部件“完好无损”,不知“坏”在何处,难以下手处理,只好以新换旧,造成浪费。在维修液压设备中,我们逐渐找到了这种故障的症结, The basic function of the electromagnetic valve is to change direction, it can be controlled by the electrical signal of the button switch, limit switch, limit switch and other electrical components, control and control are more convenient, it is widely used in machine tools, metallurgy, mining machinery Equipments such as hydraulic system. Electromagnetic valve with a long time, often without the phenomenon of commutation, and sometimes although the commutation, but insufficient flow of oil, resulting in other components can not work properly. When this phenomenon occurs, open the solenoid valve and look at it all. All the components are “intact”. I do not know where “bad” is, so it is hard to deal with it. In the maintenance of hydraulic equipment, we gradually find the crux of this failure,