Industry News

  • 2204-2020

    Design and application of bellows expansion joint

    The bellows expansion joint is a telescopic function composed of metal bellows and components. It can compensate the thermal deformation, mechanical deformation and absorption of various mechanical vibrations of the pipeline

  • 2204-2020

    Manufacturing process of metal bellows tube blank

    The manufacture of metal bellows is based on the selection of raw materials, through the main process steps of tube blank manufacturing, bellows forming, shaping, heat treatment, surface treatment, quality inspection, etc., to produce bellows that meet the design requirements.

  • 2204-2020

    The bellows slowly evolved into different shapes

    The bellows has a greater cost advantage than the coiled fusion pipe, and the production efficiency is higher than that of the coiled pipe. Although the double-walled wave tube has the characteristics of large equipment investment, it can reduce the depreciation cost of the equipment by using recycled materials.

  • 2904-2020

    How to identify the quality of the bellows

    The bellows has good plasticity, facilitates the processing of the stainless steel bellows, and can obtain sufficient hardness and strength through subsequent treatment processes (cold work hardening, heat treatment, etc.). High elastic limit, tensile strength and fatigue strength ensure the normal operation of stainless steel bellows. Good welding performance, meeting the welding process requirements of stainless steel bellows in the manufacturing process.

  • 2904-2020

    Steel bellows help improve urban shackles

    At present, the application of steel bellows has been gradually extended from the initial highway culvert to highways, municipal roads, railways, bridges, agriculture, ports, airports, municipal pipelines, industrial, commercial buildings, residential buildings, mines, old infrastructure restoration, New energy and military. According to statistics from relevant US agencies, in recent years, steel corrugated pipes accounted for more than 30% of the US large-diameter pipeline market, and annual sales of American corrugated steel pipes reached US$15 billion. In addition, East Asian countries such as Japan and South Korea have also used bellows since the end of the 20th century.

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