Bi-material strip and a method of bonding strips of different materials together

摘要

A continuous hot bonding method for producing a bi-material strip with a strong bond therebetween is provided. The method comprises sanding a first strip formed of steel; and applying a layer of first particles, typically formed of copper, to the sanded first strip. The method next includes heating the first strip and the layer of the first particles, followed by pressing a second strip formed of an aluminum alloy onto the heated layer of the first particles. The aluminum alloy of the second strip includes tin particles, and the heat causes the second particles to liquefy and dissolve into the melted first particles. The first particles and the second particles bond together to form bond enhancing metal particles, which typically comprise bronze.

主权项

1. A method of forming a bi-material strip, comprising the steps of:
providing a first strip formed of steel; applying a layer of first particles to the first strip, the first particles being formed primarily of copper; heating the layer of the first particles applied to the first strip; applying a second strip to the heated layer of the first particles, wherein the second strip is formed of an aluminum alloy including second particles formed of tin such that the tin of the second particles bonds to the copper of the first particles and forms bond enhancing particles of bronze between the first strip and the second strip.