Continuous preparation method of copper cladded aluminium composite bus

Abstract

The invention provides a continuous preparation method of a copper cladded aluminium composite bus. The continuous preparation method comprises following steps: raw material on-line surface cleaning,raw material aluminium continuous rehabilitation extruding and recrystallization, raw material copper continuous cladding raw material aluminium and blank material moulding, moulded blank material continuous deformation and temperature compensation, large deformation rate thermal state finish rolling, on-line finishing and on-line heat treatment, continuous rolling and off-line annealing, and straightening leveling and scaling cutting. The copper cladded aluminium composite bus prepared using the continuous preparation method possesses characteristics such as low copper aluminium transition resistance, high bonding strength, and excellent copper layer uniformity; copper aluminum layering is not caused through machining such as bending, shearing, stamping, and distortion, and excellent ductility and mouldability are achieved.

Description

Technical field: [0001] The invention relates to a brand-new continuous composite process of non-ferrous metal copper-aluminum materials, which is used for preparing conductor busbars widely used in power transmission and electrical application fields. Background technique: [0002] Metal copper has excellent electrical conductivity, thermal conductivity and corrosion resistance, and metal aluminum has small specific gravity, good electrical conductivity, thermal conductivity and ductility. Bimetallic copper-aluminum composite materials have the physical and chemical properties of copper and aluminum, have good electrical conductivity, thermal conductivity and corrosion resistance, light weight, and economical price. Copper-aluminum composite materials can be used as a substitute or upgrade product for metal copper and aluminum in the field of electrical conductivity and heat conduction, and are widely used in many industrial fields such as communications, electronics, elect...

AI Technical Summary

Problems solved by technology

Existing copper-aluminum composite products generally have application limitations, such as low bonding strength at the bimetallic interface, uneven bonding, narrow bonding transition zone, poor appearance uniformity and consistency of the product, bending, twisting, punching, shearing, etc. Cutting and other mechanical processing restrictions and requirements are too high

In addition, these traditional preparation processes cannot achieve continuous production, with low production efficiency and high energy consumption

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