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具有80年代国际先进水平的YA28—400/630型4000/6300kN双动薄板拉伸液压机在上海锻压机床厂通过鉴定。该液压机采用工业微机控制,可靠地实现了对6个比例压力信号控制和2个位移信号设定及控制。液压系统采用当前国际上先进的液压技术:二通插装阀和电磁比例阀。该机配置有移动工作台及自动顶料装置。装有光电控制安全保护装置、声光报警系统、运动部件监视装置和浓油润滑系统等。该液压机能进行双动正拉伸、反拉伸、双
YA28-400 / 630 4000 / 6300kN Double Action Sheet Stretching Hydraulic Press with 80’s International Advanced Level Passed the Appraisal in Shanghai Forging Machine Tool Factory. The hydraulic machine using industrial computer control, reliably achieved on the 6 proportional pressure signal control and 2 displacement signal setting and control. Hydraulic system uses the current international advanced hydraulic technology: two-way cartridge valve and solenoid proportional valve. This machine is equipped with mobile workbench and automatic top feeding device. Equipped with photoelectric control security devices, sound and light alarm system, moving parts monitoring devices and heavy oil lubrication systems. The hydraulic machine can be double-action positive tensile, anti-stretch, double