Vacuum bellowsManufacturers talk about the main purpose and application of corrugated pipe

Vacuum bellows manufacturers: what is the main purpose of bellows?

People often buy bellows, but do you really know what the main purpose of bellows is:

Vacuum bellows manufacturers: Due to the special geometry of the bellows, the bellows will produce greater deformation under the action of axial force, lateral force and bending moment. Compared with smooth smooth smooth tubes, it not only has sufficient strength, but also has greater flexibility and high fatigue resistance under cyclic stress. The application of bellows in engineering technology only needs the following points:

First of all, as an elastic element, it is mainly used for sensitive elements, compensation elements, connectors and seals of various measuring, adjusting and controlling instruments. This kind of bellows is generally small in size, good in linearity and high in precision. It is mostly processed by electrodeposition. As a bellows for elastic elements, its manufacturing method, precision control and detection requirements are unified, which is different from bellows for expansion joints. Please refer to relevant monographs.

Secondly, as a kind of metal hose, the metal hose is composed of three parts: corrugated pipe, mesh sleeve and joint. It is the main body of the corrugated metal hose and plays a flexible role. The metal hose can be used to meet the requirements of displacement in all directions at the working end of the pipeline, such as plastic hot pressing gas, steam delivery hose on the sliding platform of printing and dyeing dryer, water delivery pipe for railway tanker loading and unloading, oil pipeline for ships, etc. In addition, the metal hose in the pipeline can also compensate for the position deviation in the pipeline and absorb the vibration of the pipeline system. The corrugated pipe diameter of the metal hose is generally 10~400mm.

The third is used as a flexible section of the expansion joint bellows, mainly used to compensate for the temperature difference or temperature fluctuations caused by the pipe or equipment axial, lateral and angular displacement, but also can absorb the high frequency machine in and out of the pipe vibration.

　　Vacuum bellowsManufacturer: Vacuum bellows are widely used in many industrial fields

Vacuum bellows manufacturer: The main characteristics of bellows are: it can produce corresponding displacement under the action of pressure, axial force, lateral force or bending moment, and has pressure resistance, vacuum sealing, corrosion resistance, temperature stability and Long service life and other characteristics.

Vacuum bellows are mainly used in these areas:

1. The elastic sensitive element used in the instrument has high requirements on the elastic characteristics of the bellows as the elastic sensitive element.

2. As an elastic sensitive element, the bellows basically converts pressure into displacement output or pressure into concentrated force output.

3. The bellows displacement of the pressure into a concentrated force is small or no, so the stress generated on the bellows is smaller than the stress on the bellows of the output displacement, which can be said to have no effect on the elastic aftereffect and hysteresis. Therefore, the reliability and accuracy of the instrument with the force balance bellows as the elastic sensitive element can be very high.

In the measuring instrument, the reason why the multi-force balance bellows is used as the elastic sensitive element is that the bellows that converts the pressure into the displacement output will produce a larger pressure on the bellows, which should be paid attention to in the design. At the same time, the elastic aftereffect and hysteresis have a certain influence on the elasticity of the bellows. Because the bellows are used as the elastic sensitive element in the instrument, the stiffness of the bellows should be reduced as much as possible in the design.

　　Vacuum bellowsManufacturer: Well, thank you for watching. Let's see you next time.