Material selection and characteristics of high-pressure tubing

by:Haikuo     2021-06-25
High-pressure tubing is divided into fiber reinforced polyurethane hose, fiber reinforced nylon hose, steel wire reinforced polyurethane hose, steel wire reinforced nylon hose, steel wire wound resin hose, and food grade hose. The hose of the high-pressure oil pipe is made of special synthetic rubber, which has excellent oil resistance, heat resistance, and aging resistance. The hose has high pressure bearing, superior pulse performance, tight coupling of the pipe body, soft use, and small deformation under pressure. The hose has excellent bending resistance and fatigue resistance.
High-pressure tubing has a wide range of uses. When assembling, we often encounter the condition that the tube is stretched. When the pipeline is stretched, the performance of the pipeline material will change. What impact will the high-pressure tubing be stretched specifically have? When the pipeline is stretched, its inner diameter becomes smaller, the flow capacity becomes smaller, and the pipe wall becomes thinner, which causes the pressure-bearing capacity, large working pressure, and small burst pressure of the pipeline to decrease. However, its actual working pressure is unchanged, which means that at this time, the working pressure of the hose may have exceeded its maximum working pressure, and the possibility of failure will increase.
In addition, when the pipe is stretched, the inner and outer rubber layer, reinforcement layer and isolation layer of the hose are pulled, but due to their different toughness, it will cause the phenomenon of separation of each layer, which has a very bad influence on the performance of the pipe. . The stretched hose sometimes affects the small bending radius of the hose, and when it is smaller than the small bending radius, the hose life will be shortened.
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