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How To Adjust The Pressure Of The Hydraulic Press? 返回首頁

Hydraulic Press Machine is a machine that uses hydrostatic pressure to process wood, metal, plastic, rubber, powder and other products. It is often used in pressing processes and forming processes, such as: forging, stamping, cold extrusion, straightening, bending, flanging, sheet drawing, powder metallurgy, press fitting, and so on. Hydraulic machine is generally composed of three parts: the machine (main machine), power system and hydraulic control system. Its structure is reasonable and its performance is superior. It is a very versatile machine. Using at the correct power helps to extend the service life. It is normal for pressure to be lost during operation. We must understand the reason and master the method of adjusting pressure.

Hydraulic Press Machine

Hydraulic Press Machine

Pressure loss along the course, when hydraulic oil flows in straight pipes of equal diameter, pressure loss will occur due to viscous friction, as well as local pressure loss in the hydraulic machine, hydraulic oil flows through the elbows, joints, abrupt cross sections and valve ports of the pipeline. For local devices such as filters, the liquid flow will generate vortices and generate strong turbulence, resulting in pressure loss. Finally, the total pressure loss of the pipe system of the four-column press, the total pressure loss of the entire pipe system of the hydraulic press should be all The sum of the pressure loss along the path and all local pressure losses; in order to reduce the pressure loss, the flow rate can be reduced, the length of the pipeline can be shortened, the sudden change in the section of the pipeline can be reduced, and the quality of the inner wall processing can be improved. The loss is only one aspect. The pressure must be adjusted during the operation.

The pressure of the hydraulic system cannot be higher than the pressure of the pump. Unless it is increased, the test pressure of the press depends mainly on the load. It is automatically generated rather than debugged. The given pressure should be the maximum pressure for the normal operation of the hydraulic machine; lower the pressure of the relief valve, close the outlet of the pump in the throttle valve and the directional valve, debug the relief valve, and the pressure at the pump outlet rises until it reaches the required value.

The function of the working medium used in the hydraulic press is not only to transmit pressure, but also to ensure that the working parts of the machine are sensitive, reliable, long life and low leakage. Compared with the traditional stamping process, the hydroforming process has obvious technical and economic advantages in reducing weight, reducing the number of parts and molds, increasing rigidity and strength, and reducing production costs. It has been obtained in the industrial field, especially in the automotive industry. More and more applications. Four-column hydraulic press is suitable for the pressing process of plastic materials. Such as powder product molding, plastic product molding, cold (hot) extrusion metal molding, sheet stretching, and lateral pressing, bending, turning through, correction and other processes.

So, how does the hydraulic press adjust the hydraulic pressure? Let's talk about it in detail with the Hydraulic Press Exporter:

1. The hydraulic machine mainly uses the pressure regulating valve to adjust the hydraulic pressure. After all installation work of the hydraulic press is completed, it must be commissioned on site. Press the start button to see if the hydraulic press can complete the actions of each working order in sequence. During the debugging process, see whether the hydraulic press hardware or control system works normally by watching, listening, etc. In addition, verify that all control buttons and pressure gauges are working properly. After a period of commissioning, if the operation is normal, the hydraulic press can be officially delivered.

2. Next, carefully read the "Hydraulic System Diagram" to clarify the working principle and performance requirements of the hydraulic system. To this end, it is necessary to clarify the functions of hydraulic, mechanical and electrical three and their mutual connection, action sequence and chain relationship. The actual position of each component in the system on the device, their role, performance, structural principle and adjustment method.

The above is the hydraulic pressure adjustment method introduced by the Induction Heating Pipe Bending Machine supplier. I hope it can help everyone.

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