The control system of 2500t freedom forging hydraulic press in forging pla nt of Laigang was machine-hydraulic servocontrol system.

• 为此,采用电液伺服系统替代原系统,经合理分析负载及确定动力元件参数,实现了水压机操纵系统的灵活性、准确性、快速性。