公开(公告)号：US3835682A

公开(公告)日：1974-09-17

申请号：US29108772

申请日：1972-09-21

Applicant: MANNESMANN MEER AG

Inventor： ELGER R

IPC: B30B1/34 ,  B21D5/01 ,  B21D5/02 ,  B30B15/16 ,  B30B15/22 ,  B30B15/24 ,  B21J9/20

CPC classification number: B30B15/16 ,  B21D5/01

Abstract: Method and apparatus for controlling a hydraulic press having a row of hydraulic cylinder/ram assemblies for applying pressure in a workpiece of elongate form. The pressure of one cylinder/ram assembly adjacent one end of the workpiece is controlled in dependence upon the ratio of the length of the end portion of that workpiece over the length of the zone covered by that one cylinder/ram assembly.

Abstract translation: 用于控制液压机的方法和装置具有一排用于在细长形式的工件中施加压力的液压缸/柱塞组件。 相邻于工件一端的一个气缸/压头组件的压力根据该工件的端部的长度在该一个气缸/压头组件所覆盖的区域的长度上的比例来控制。