A device and method for preparing clad structural metal composite materials by bidirectional extrusion

Abstract

The invention discloses a device and method for preparing metal composite materials with cladding structure by bidirectional extrusion, which belongs to the technical field of processing metal composite materials and includes: a fixed bracket, a composite extrusion die, an extrusion punch, an extrusion cylinder, a positive A forward extrusion device and a reverse extrusion device, the composite extrusion die is arranged between the forward extrusion device and the reverse extrusion device; the outer side of the composite extrusion die is provided with a mounting base, and the mounting base is fixedly connected with the fixed bracket; One end of the composite extrusion die is provided with a forward extrusion die, and the other end is provided with a reverse extrusion die; one end of the extrusion punch is matched with the forward extrusion die; the other end of the extrusion punch is matched with the positive extrusion die. Cooperate with the extrusion device; one end of the extrusion cylinder cooperates with the reverse extrusion die; the other end of the extrusion cylinder cooperates with the reverse extrusion device. The invention eliminates the defects of the blank by extruding the inner layer blank, and the generated new metal surface is subsequently extruded and compositely formed to obtain a composite material with strong surface bonding force and excellent mechanical properties of the material.

Description

technical field [0001] The invention belongs to the technical field of processing metal composite materials, and in particular relates to a device and method for bidirectional extrusion for preparing metal composite materials with clad structures. Background technique [0002] Metal composite materials are new composite materials prepared by using composite technology to make two or more metals with different physical, chemical and mechanical properties achieve firm metallurgical bonding at the interface. Metal composite materials have incomparable advantages over a single metal material. Through reasonable material selection and proper combination, not only can the own characteristics of the constituent materials be retained, but also the properties of the constituent materials can be complemented by the composite effect, so that the composite material can obtain Excellent overall performance. Composite materials such as copper-clad aluminum, copper-clad steel, and aluminu...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the traditional rolling crimping method and cladding welding method have the disadvantages of long production process and high cost.

At the same time, the dual-metal clad material continuous casting direct composite forming method and the horizontal continuous casting direct composite forming method in the prior art have disadvantages such as high investment cost, low production efficiency, and large energy consumption.

[0004] In addition, CN 103920734A proposes an extrusion molding die and method in the semi-solid preparation method of aluminum-clad magnesium composite pipe, but each layer of material needs to be split and welded in its own mold, and its strength is difficult to guarantee. Finally, solid- Solid extrusion composite, the interface strength is not high

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