Four-column hydraulic press leaks fault

Four-column hydraulic press leaks fault

The so-called four-column hydraulic press leakage failure refers to the leakage of the four-column hydraulic press beyond the allowable range. A common problem with four-column hydraulic presses when they leak. It is almost impossible to keep hydraulic equipment completely leak-free. This is because in hydraulic presses and hydraulic components, due to machining errors and the relative motion requirements of the mating surfaces, there will always be certain gaps, and leakage will occur when the oil flows through these gaps. There are two forms of leakage: one is internal leakage when the oil flows from the high pressure area to the low pressure area; the other is the external leakage when the oil in the hydraulic press leaks to the outside of the four-column hydraulic press.

Leakage will reduce the efficiency of the four-column hydraulic press and pollute the environment; the loss of internal leakage will be converted into heat energy, which will increase the oil temperature of the system, affecting the performance of hydraulic components and the normal operation of the hydraulic system; external leakage may also cause fire.

Due to the serious leakage hazards, the leakage control work is an important work in the use of hydraulic equipment, and measures are often taken in the following aspects.

①The main form of leakage of the four-column hydraulic press when the gap leaks, the amount of leakage and the pressure difference between the two ends of the gap, the viscosity of the liquid, and the length of the gap. The width and height are equivalent, especially the height of the gap has the most serious influence on the leakage, and the leakage is proportional to the cube of the height of the gap. Therefore, when designing and manufacturing hydraulic components, under the conditions allowed by the structure and process, the Minimize the gap height as much as possible.

②Due to the surface roughness of the four-column hydraulic press parts, it is impossible for the two joint surfaces to be in contact at all points, so many pores with various cross-sectional shapes and sizes are formed in the microscopic depressions where the two surfaces are in contact with each other, so the oil is under the action of the pressure difference. , leaking through these pores, for this reason, for the joint surfaces of each cover plate, flange joint, plate link and other joint surfaces of hydraulic components, a reasonable surface roughness must be guaranteed; and during assembly, the tightening force is large enough to ensure that the screws Tighten securely to prevent the mating surfaces from tilting. This article comes from the hydraulic manufacturer WORLD Press Machine official website www.pressmachine-world.com, please indicate the source for reprinting!

mechanical power press is an inevitable and critical part of being a manufacturer, and it's more complicated than just manufacturing products and serving customers.

Our knowledgeable loss prevention experts can help commercial customers reduce losses in mechanical power press.

Shanghai Yingxin World Machinery Co., Ltd. prepares for every aspect of running a business, and this includes developing a sound understanding and ability to manage the financial aspects of our company, including financial analysis, taxes and budgeting.

Among improvements to mechanical power press, nearly half of consumers considered quality and service as the most important change a business could make in its supply chain.

automatic power press machine mechanical power press is characterized by various advantages, such as automatic power press machine, automatic power press machine and automatic power press machine, which is not the case with other mechanical power press.