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Cause Analysis Of Hydraulic Hose Failure
Hebei Siberia Special Rubber Co.,Ltd | Updated: Sep 27, 2017

Hydraulic hoses are important parts of construction machinery such as concrete pump, excavator, loader and so on. However, it is often not taken seriously by people. It is often not analyzed when there is leakage, crack, rupture and loosening in use. The cause of the malfunction is simply to replace the hose, and the same failure will be repeated shortly after use. Hydraulic hose loose or broken, not only a waste of oil, pollute the environment, but also affect the efficiency, and even accidents, endanger human safety.

Hydraulic hose failure analysis reasons: improper use, system design is unreasonable and hose manufacturing failure and so on. Hydraulic hose in use if the use of improper pipe will have an impact, the following we have to analyze this issue:

First, the characteristics of the pipe were analyzed. Hose is divided into rubber tube and plastic pipe, plastic pipe cheap, easy to install, but the carrying capacity is poor, easy to aging, only applies to the return pipe or drain pipe; rubber tube high pressure hose and low pressure hose two, high pressure hose generally The outer layer, the steel reinforcing layer, the middle layer and the inner layer. The inner layer is directly in contact with the hydraulic oil and is generally made of synthetic rubber.

The carrying capacity of the hose depends on the reinforcement layer, which is the skeleton of the hose, which is usually woven or wound with steel wire. Most of the high-pressure steel wire braid for the skeleton, high pressure, high pressure and more use of wire wound skeleton. The outer layer is usually made of rubber with good wear resistance and good corrosion resistance, so as to ensure that the reinforcing layer is not damaged by mechanical damage, chemical corrosion, wet rust, low pressure hose to weave cotton, twine instead of braided steel wire, pipeline. Hose failure generally manifested in the following four aspects: the outer layer of the fault, the inner layer of the fault, to strengthen the fault layer, the breakdown of the fault.

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