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Characteristics of high temperature resistant braided silicone hose

时间:2021-11-12浏览次数:320

How to use braided silicone hose

Hygienic braided silicone hose

1. When using braided silicone hose, the bending radius cannot be less than the specified bending radius, otherwise the braided silicone hose will be damaged in advance due to the skeleton in the pipe and excessive stretching.

2. Before using the rubber hose, the type and specification of braided silicone hose should be selected according to the required requirements and service conditions to avoid misuse.

3. When braided silicone hose is used, the pressure should be balanced and cut slowly to prevent sudden pressure increase from damaging the pipe body.

4. When the working place changes, it should be handled off the ground, and the woven silicone hose cannot be dragged on the ground, so as to avoid scratching the outer rubber and corroding the skeleton layer.

5. Escort corrosive liquid. After using up the braided silicone hose, the interior should be cleaned to prevent the residue from permanently corroding the pipe body, or select the corresponding series of products.

Structural characteristics of braided silicone hose

Hygienic braided silicone hose

The braided layer of braided silicone hose is usually formed by stopping and interleaving at an equilibrium angle (54 degrees and 44 seconds). Therefore, the hose with this structure has the following advantages.

1. Good pressure bearing performance

Under pressure, braided silicone hose has small deformation of change, expansion and contraction, good impact resistance and relatively high pressure bearing strength. For example, the hydraulic hose composed of steel wire braiding can withstand hundreds of thousands of times of pulse pressure.

2。 Good bending performance

Compared with the fabric sandwich structure, this kind of hose can give full play to the strength of the skeleton raw materials, so the application rate of raw materials is high. However, due to the interlaced state of the braided layer, the skeleton raw materials are attached with a certain amount of bending stress. At the same time, under the application conditions, the mutual friction and cutting between the lines make the skeleton raw materials prone to early damage. Therefore, necessary compensation measures should be taken for the rubber hose with this structure in terms of manufacturing technology, especially for the steel wire braided rubber hose used under high-voltage pulse. Compensation measures: such as reasonable selection of knitting machine; Make the tension acting on the steel wire persist in divergence, and try to reduce the intersection point of the steel wire.

3. High application rate of raw materials

The rubber hose has good bending performance in use, the bending radius is small, and it will not be pleated when bending.

Specification for pressure testing of high pressure steel wire braided hose

In order to prevent the temperature transition from being too high: it cannot be overloaded for a long time; Pay attention to the fins of the radiator to prevent the fins from being polluted by oil, which will cause dust to adhere to it and affect the heat dissipation effect; Maintain sufficient oil quantity to facilitate the circulation and heat dissipation of oil.

For pressure test, the national standard requires that the experimental pressure is twice the working pressure, and the burst pressure is generally 3-4 times the working pressure, which is qualified; Simple appearance inspection method: you can observe the brightness of its surface and section. The one with high brightness is the top grade, and you can feel that it has better colloidal elasticity by using nail pinching. The braided silicone hose shall not be excessively bent during handling or storage, nor shall it be bent at the root, and it shall be bent at least at 1.5 times its diameter; The high-pressure steel wire braided hose shall not be pulled too tightly during handling, but shall be as loose as possible; Prevent the rubber hose from deforming; The rubber hose shall be as far away from the thermal radiation components as possible, and the heat insulation board can be installed if necessary; External damage of the rubber hose shall be prevented, such as long-term friction with the component surface in use; The viscosity of the oil decreases, which is easy to leak and the efficiency decreases; The strength of smooth oil film decreases, accelerating the wear of machinery; Formation of carbides and sludge; Oil oxidation accelerates the deterioration of oil quality; Premature aging of oil seals and high-pressure steel wire braided rubber hoses.


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