Bimetal backing

A bimetallic gasket is a commonly used sealing element made of two different metals stacked on top of each other. Its main materials are usually superalloys, stainless steel, aluminum, etc. The production process of bimetallic liners is very delicate and requires multiple processes, including shearing, stamping, welding, etc. These processes guarantee excellent sealing properties and corrosion resistance of the gasket.

The design principle of bimetallic liners is based on the different coefficients of thermal expansion of different metals at different temperatures. When the temperature rises, the thermal expansion coefficient of the two metal layers is different, so that the liner has a certain bending deformation. This deformation allows the gasket to fit snugly to the sealing surface, resulting in a reliable seal. At the same time, due to the different chemical properties of different metal layers, bimetallic liners can also provide good corrosion resistance and are suitable for various harsh working environments.

Bimetallic gaskets are widely used in petrochemical, aerospace, nuclear industry and other fields for sealing containers, pipelines, valves and other equipment. Its advantages include good sealing, strong corrosion resistance, and good adaptability to temperature changes. It is worth mentioning that the sealing performance of bimetallic gaskets can also be optimized by adjusting the thickness of the metal layer and the choice of material. As a result, it is widely recognized as a reliable and economical sealing solution.