Used for hydraulic systemsHigh-pressure steel wire braided hoseMade of synthetic rubber and reinforced according to expected load. There are several reinforcement layers on the outer side of the inner tube, and the reinforcement material includes natural or synthetic fiber yarns, metal wires, or their combinations. The outer layer is a layer of oil resistant and weather resistant skin, with adhesive between layers. Improper use can greatly shorten the service life of rubber hoses while ensuring quality. In practical work, the damage to rubber hoses is mostly caused by improper use.

1. Frequently subjected to severe pressure shocks

The bursting of rubber hoses is generally not caused by excessive static pressure, but is related to the severity and frequency of pressure impact. During the operation of construction machinery, sudden increases or decreases in oil pressure may repeatedly occur inside the pipes, resulting in frequent pressure impacts on the rubber hoses, exacerbating damage to oil seals in various parts, causing bubbling and rupture of the rubber hoses, as well as loosening and leakage of pipe joints. Leakage phenomenon. Therefore, when operating, do not apply too much force when pulling the valve stem, be gentle.

2. The working temperature is too high

During the operation of construction machinery, the hydraulic system heats up due to power loss. In addition, due to the influence of external temperature (especially in summer), the liquid temperature will rise sharply. The higher the working temperature, the more prone it is to aging, decreased elasticity, decreased strength and sealing performance, and the hose will quickly burst. Therefore, during operation, when the temperature of the hydraulic system rises too high or too fast, the cause should be identified and eliminated in a timely manner; Corresponding cooling measures should be taken during summer homework, especially during continuous work.

3. Unreasonable selection and installation of rubber hoses

When replacing high-pressure steel wire braided rubber hoses, the length of the selected hose, the number of steel wire layers, the shape and size of the joints need to be reasonable, and the bending of the hose should be minimized as much as possible; When tightening the joint nut, do not cause the hose to twist, excessive bending and twisting will reduce the service life of the hose; Protective measures should be taken for parts that are prone to friction to prevent the hose from bursting due to wear and tear.

The above is the damage that improper use can cause to high-pressure steel wire braided rubber hoses. After use, the hose should be inspected to ensure that there is no structural damage. When the hose is under high pressure during use or when the outer layer of the high-pressure hose comes into contact with the conveying liquid for a long time, it is recommended to conduct a hydrostatic test.