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一、定程控制在全(半)自动液压机(四柱或框架式)上实行粉末冶金、砂轮、塑料等产品的压型,都是通过安装在液压机上的模架实现压制、回程、脱模、浮起四个动作程序来完成的。模具仅控制工件的径向尺寸,而其高度尺寸则是通过电器严密控制液压机的液压系统来实现的。随着生产日趋自动化,液压机液压系统大都采用“电液组合阀”。液压机使用的液压泵种类较多(柱塞泵、叶片泵、齿轮泵),加
First, the process control In the whole (semi) automatic hydraulic machine (four-column or frame) on the implementation of powder metallurgy, grinding wheel, plastic and other products of the pressure, are installed in the hydraulic press mold to achieve suppression, back, mold release, Float four action program to complete. The mold only controls the radial size of the workpiece, while the height dimension is achieved through the electrical control of the hydraulic system of the hydraulic machine. With the increasingly automated production, hydraulic system hydraulic system mostly used “electro-hydraulic valve.” Hydraulic press hydraulic pump used more types (piston pump, vane pump, gear pump), plus