The development history of hydraulic press
As the two major components of the hydraulic press, the main engine and the hydraulic system, due to the mature technology development, there is no big gap between domestic and foreign models, the main difference lies in the processing technology and installation. Good technology makes the machine have obvious improvement in filtering, cooling and preventing shock and vibration. In terms of oil circuit structure design, domestic and foreign hydraulic presses tend to be integrated and closed design, and cartridge valves, superimposed valves and composite components and systems are widely used in hydraulic systems. In particular, the integrated block can be professionally produced, and its quality is good, the performance is reliable, and the design cycle is relatively short.
The circuit composed of new hydraulic components developed on the basis of integrated blocks in recent years also has its unique advantages. It does not require additional connectors, its structure is more compact, its volume is relatively smaller, and its weight is lighter. Eliminates leakage, vibration and noise caused by oil pipes and joints. The logic cartridge valve has the characteristics of small size, light weight, good sealing performance, low power loss, fast action speed and easy integration. It has appeared since the early 1970s and has developed rapidly.
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