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金属波纹管是仪器仪表及自动化装置中重要元件之一,在机械、石油、化工、冶金、电力、宇航、原子能等工业部门中得到了广泛的应用。波纹管按层数来分有两种:单层和多层波纹管。前者壁厚通常为0.08～0.5毫米,有效直径(即内径和外径之和的一半)大多数在10～200毫米。为提高波纹管的承压能力,如高压阀门,经常采用多层波纹管。多层波纹管有
Metal bellows is one of the important components in instrumentation and automation devices. It has been widely used in the industrial sectors such as machinery, petroleum, chemical industry, metallurgy, electric power, aerospace and atomic energy. Bellows divided by the number of layers there are two: single and multi-layer bellows. The former wall thickness is usually 0.08 ~ 0.5 mm, the effective diameter (ie, the diameter and the outer diameter of the half) most of 10 ~ 200 mm. To improve the bearing capacity of the bellows, such as high-pressure valves, often using multi-layer bellows. Multi-layer bellows have