FAQ

What are the expansion joints in the vulcanization industry?

There are many types of expansion joints in the vulcanization industry, and the following is a detailed introduction for you:

  1. Vulcanized non-metallic expansion joint

  • Features: Its skin (non-metallic fabric layer) is vulcanized. Sulfur or similar compounds are added under heated conditions in the vulcanization process to cross-link the material molecules and enhance physical properties such as hardness, elasticity and heat resistance. With better sealing performance, longer service life, improved mechanical stability and better weather resistance.

  • Application scenario: It is suitable for various industrial fields such as chemical industry, electric power, steel, oil and natural gas, and is commonly used in pipeline systems with high temperature, high pressure or corrosive media to compensate for displacement caused by thermal expansion, mechanical vibration or installation error.

  • Integral vulcanized rubber expansion joint

    • Characteristics: The product structure adopts a new national standard structure form. After composite winding to form a rubber expansion joint blank body, the whole enters a special mold, and after short-wave high-temperature vulcanization, a stable rubber elastic structure is formed. It has excellent structural performance, can adapt to the use demand of new industrial pipeline system, and meet the demand of quick connection and shock absorption compensation of pipeline system.

  • Circulating vulcanized bed expansion joint

    • Features: The company can design a variety of forms according to user requirements. It can effectively solve the problems of pipeline thermal compensation, foundation subsidence, installation error, seismic isolation and noise reduction in pipeline system.

    • Application scenario: It is suitable for circulating vulcanized bed boiler, waste incinerator, chemical industry, metallurgy, building materials, paper industry, etc. It can also be used for 300,000 units, small and medium-sized generating units and their desulfurization projects, supporting gas engine exhaust flue, large boiler flue duct, etc.

  • Desulfurization anti-corrosion expansion joint

    • Features: Use corrosion-resistant materials, such as skin materials with high corrosion resistance.

    • Application scenario: It is commonly used in environments containing corrosive media such as boilers of petrochemical enterprises, exhaust desulfurization devices of industrial furnaces, wet-drying ventilation ducts, etc. It is also widely used in desulfurization systems of thermal power plants, cement plants, steel plants, etc.

  • High temperature resistant ventilation tube

    • Features: It can maintain stable performance in high temperature environment, withstand the erosion of high temperature gas, etc.

    • Application scenario: It is used in an environment where the medium temperature in the flue duct is high (e.g., it can reach 1000℃), such as the flue duct of large boilers.

    In short, there are various types of expansion joints in the vulcanization industry, and the specific selection should be determined according to the actual application scenarios and working conditions.

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