介绍了一种利用PLC的输出电压控制电液比例变量泵，使压机运行每个动作时液压系统输出的压力，流量都可以根据需要当前产品的工艺需要而单独设定．极大的提高了压机的运行效率．%introduced a method of using the output voltage of the PLC control of electro-hydraulic proportional variable pump. The compressor to run each movement hydraulic system output pressure, flow rate can according to the needs of the Current product technology to separate set. Greatly improve the operation efficiency of the compressor.
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