HIGH-PRESSURE HYDRAULIC PRESS Russian patent published in 2014 - IPC B30B1/32 B30B15/22 F15B3/00 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly to die forging and compaction. Hydraulic press comprises bed, working hydraulic cylinder, press tool, set of pressure boosters, lifting hydraulic cylinders, two hydraulic and hydraulic pressure control systems. One hydraulic system is intended for working hydraulic cylinder while another one for lifting hydraulic cylinders. Pressure boosters communicate high-pressure chambers of downstream booster with low-pressure chamber of upstream booster. Downstream booster high-pressure chamber is connected directly with press working cylinder chamber via hydraulic check valve. Controlled hydraulic valves are arranged between said high-pressure chamber and said low-pressure chambers.

EFFECT: higher working force.

2 cl, 3 dwg