Bimetal strip is a new type of composite material prepared by using a certain composite process to achieve a strong metallurgical combination of two or more matrix metals with different physical, chemical and mechanical properties at the interface.
Bimetal strip comprehensively utilizes the electrical properties, thermal properties, corrosion properties, magnetic properties, wear resistance, weldability, formability, density, low cost, appearance and other characteristics of the base metal, and has better comprehensive properties than a single base metal material. It is widely used in aerospace, automobiles, communications, semiconductors, electric power, heat dissipation, architectural decoration, living appliances and other fields.
Bimetal strip provides a solution for car weight reduction. It can not only meet the requirements of light weight and high strength of auto parts, but also reduce costs. For example, aluminum-aluminum composite can be used as radiator fins and water tanks. Copper-aluminum composite can be used for battery systems, transition joints, bus bars, bus junction boxes, etc. Aluminum-magnesium composite can be used as body panels and so on. Copper-steel composite, one is used as battery connection material, lead frame, etc.
Bimetal strip is also very helpful for improving the heat dissipation performance of smart phones. Stainless steel and aluminum composite materials are used as mobile phone shells, which not only have the characteristics of light weight and high strength, but also have a good metal texture.
Bimetal strip also solves the problem of high temperature heating and instability of lithium batteries.