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How to deal with sudden loss of load of forging press?

The sudden loss of load of forging press means that when the forging press breaks the billet in punching, blanking, trimming, and cold state, due to the sudden reduction or disappearance of the deformation resistance of the material, the phenomenon of natural loss of load often causes large impact vibration of the body of the single-column forging press, and in serious cases, it will break the anchor screw, even the beam is broken, and the foundation is damaged. So, how to solve the forging press loss of load?

1, reduce the liquid elastic energy storage The elastic energy of the liquid storage is proportional to the height of the liquid in the working cylinder, therefore, the forging press can be thickened between the table and the lower die, so that the working stroke of the active beam is moved up to reduce the liquid height of the working cylinder.

2, other ways to release energy that is, at the moment when the forging press suddenly loses load, part of the high-pressure liquid in the working cylinder is quickly drained to reduce the energy to be released. This method has a more significant effect when the liquid pressure is higher, but requires the corresponding electro-hydraulic control valve to be more sensitive, and does not cause large vibration of the side-drain pipe.

3, absorb energy to absorb the shock under the forging press is not set cushion, adjust to the material is about to cut off, at the cutting moment, the moving part contacts the cushion, so that the energy will be consumed on the compression cushion.

4, forging press manufacturer, base vibration isolation between the forging press and the foundation is set up a vibration isolator, using the elastic and damping effect of the vibration isolator to absorb and dissipate energy, so as to achieve the purpose of shock absorption and vibration isolation. Suitable for use as a hydraulic press really elastic components have butterfly spring, plate spring, air spring and so on.

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