What Are Metal Bellows?

Metal bellows is a kind of regular wave-like pipe. Commonly used metal bellows are carbon steel, stainless steel, steel-lined plastic, aluminum, and so on. It is mainly used for non-concentric axial transmission with a small bending radius, or for irregular turns, expansion or contraction, or to absorb the thermal deformation of the pipeline. Use of equipment for connection.

Metal bellows refers to metal pipes made of galvanized or non-galvanized low-carbon steel strip with spiral folded bites and used to reserve holes in post-tensioned prestressed concrete structural members ^[1]

Metal bellows are widely used in the fields of automatic control and measuring instruments, vacuum technology, machinery industry, electric power industry, transportation and atomic energy industry as sensitive components, shock absorbing components, compensation components, sealing components, valve components and pipeline connections. .

Metal bellows are chosen for different metal materials due to their different uses. Due to their different materials, the properties and uses of the processed metal bellows are also different ^[2]

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At first, people used animal skins to synthesize tubular structures to meet the needs of the production struggle. After a considerable period of time, by the end of the seventeenth century, Vandelge in the Netherlands

Metal bellows is mainly composed of bellows and mating connection parts at both ends (for one-time processing). The structure diagram is shown in Figure (1).

Metal corrugated pipe blank is made of corrugated thin-wall stainless steel with welded pipe, which is flexible and has good temperature and pressure resistance. It is suitable for the transportation of various industrial gases such as air and steam, as well as various fluid media such as water, oils, and drugs. It plays an important role in the reciprocating motion of the piping system, absorption of thermal expansion system, vibration absorption, and piping center adjustment.

Metal corrugated pipe blanks are the best supporting products for metal hoses, corrugated pipes, corrugated pipe compensators, corrugated pipe blanks, automotive exhaust pipes, high pressure hoses, cable threading pipes and other pipe bodies. Metal corrugated pipe blanks are used. Divided into soft and hard varieties, bright and soft, reliable quality, complete specifications. The product is corrosion-resistant and has a smooth and beautiful appearance, which can improve the bearing pressure of the finished hose, high and low temperature resistance, prolong the service life of the pipe body, reduce costs, and is widely used in machinery, chemical, metallurgy, construction and other industries ^[1] .