The design principle of the metal bellows of the disc-type w
Writer： admin Time：2021-09-08 22:05 Browse：℃
The design principle of metal bellows for disc-welded vacuum bellows. The theoretical basis of metal bellows design is plate and shell theory, material mechanics, and computational mathematics. There are many parameters in the design of bellows. Due to the different uses of bellows in the system, the focus of design calculations is also different. For example, bellows are used for force balance components, and the effective area of the bellows is required to be constant or small within the working range. For measuring components, the elastic characteristics of the bellows are required to be linear; used for vacuum switch tubes as vacuum seals , It requires the vacuum tightness, axial displacement and fatigue life of the bellows; for the valve as a seal, the bellows should have certain pressure resistance, corrosion resistance, temperature resistance, working displacement and fatigue life. According to the structural characteristics of the bellows, Lexin Vacuum Parts Factory can treat the bellows as a ring shell, a flat cone shell or a ring plate. The design and calculation of bellows is also the design and calculation of round shells, flat cone shells or ring plates. The calculated parameters are stiffness, stress, effective area, instability, allowable displacement, pressure resistance and service life.
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