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前言锻压设备中,液压机应用较为广泛,也消耗较多的能源。近年来,随着生产技术的发展,为了满足多种工艺的要求,一些动作复杂、高速、大吨位的液压机不断出现,总装机功率高达几百千瓦的液压机已屡见不鲜。人们从广泛利用和不断深入研究中得知,液压机的功率经常未全部有效地利用,其实际消耗的功率与输入功率相比,往往相差甚大,
Forging equipment, the hydraulic machine is widely used, but also consume more energy. In recent years, with the development of production technology, in order to meet the requirements of a variety of processes, some complicated operation, high-speed, large-tonnage hydraulic press constantly appear, the total installed power of up to hundreds of kilowatts of hydraulic press has been commonplace. People have learned from extensive use and continuous research that the power of a hydraulic press often fails to be fully utilized, and the actual power consumption often varies greatly from the input power,