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2022

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Silicone steel pipe manufacturers: some knowledge of metal hose

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 Silicone steel wire pipeThe manufacturer believes that the stainless steel wire mesh sleeve in the metal hose is mainly used to protect the bellows and withstand the medium pressure (mainly axial force) in the bellows compensator. The net cover is outside the bellows, and the two ends are welded with the bellows, the end ring and the joint.

Silicone steel wire pipe manufacturers believe that due to welding quality reasons, corrugated pipe, ring and steel wire mesh sleeve are welded together, resulting in some steel wire virtual welding (over-burning or end welding). In this way, after the hose is installed in the pipeline, due to the uneven force of the steel wire, under the action of the medium pressure, the steel wire at the virtual welding place is first pulled off, so that the whole steel wire mesh sleeve is pulled off, resulting in failure of the outer cylinder of the corrugated pipe and danger. In order to prevent this from happening, the welding quality should be improved. The hose shall be subjected to water pressure and air tightness test before delivery, and can be delivered only after passing the test.

Silicone steel wire pipe manufacturers believe that during the installation of the hose, the hose will be stretched and twisted due to improper installation or excessive pressure. When the stress generated by stretching or twisting exceeds the ultimate strength of the steel wire mesh sleeve of the hose, the mesh sleeve of the trinity welded part of the hose or the mesh sleeve of other parts will be pulled off, thereby causing the bellows to rupture.

  Silicone steel wire pipeManufacturers believe that in complex piping systems, due to space constraints, installation work often produces various difficulties. The forming pipe cannot be installed; bending, bending and centralized installation of the pipe will inevitably require local cooling compensation. According to the pipe diameter and field conditions, the amount of cold fill varies from a few millimeters to tens of millimeters, and some even reach several hundred millimeters. Practice has proved that the larger the amount, the higher the internal stress, and the residual installation stress in these pipeline systems is obviously hidden. The metal hose can be bent freely, and the internal stress generated by bending under the condition of rated bending radius is very small, and the installation is very convenient, which plays a certain role in ensuring the safe operation of the pipeline system. This is the main reason why some piping systems require the use of metal hoses.

Silicone steel pipe manufacturers believe that due to the need to load and unload the mold, the movable cylinder of the vulcanizer moves up and down. After repeated reciprocating motion, the copper serpentine tube will be damaged by fatigue, and it can continue to be used after repair, but the time is gone when the repair is stopped. Rubber tube has good flexibility and fatigue resistance, but it is a weak link in pressure resistance, temperature resistance and aging resistance. It usually takes several months and cannot continue. The good comprehensive performance of the metal hose is fully reflected here. In the general industrial field, in addition to pressure and temperature, there are often severe conditions such as fatigue, corrosion, vibration, pressure, and shock. In this case, it is appropriate to use a metal hose to compensate for the positional movement of the pipe. The metal hose absorbs vibration, which not only improves the fatigue failure ability of the system, but also has the effect of reducing noise. Part of the piping system uses metal hoses.


Silicone steel wire pipe