Method for preparing double-metal compound material through combined solid-state copper solid-liquid compounding and rolling

A composite material, solid-liquid composite technology, applied in metal rolling and other directions, can solve problems such as thermal cracking, low performance of interacting bimetallic composite materials, component segregation, etc., to improve peel strength, improve mechanical properties and physical properties, The effect of improved performance

Inactive Publication Date: 2016-05-25
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a method for preparing bimetallic composite materials by solid-liquid compounding and rolling of solid copper materials, so as to solve the problem of joint areas often caused by the existing composite technology when connecting copper materials and other materials. The formation of oxide slag, gas absorption, thermal cracking, and composition segregation problems, while solving a series of problems such as the existence of oxide films and intermediate compounds that seriously affect the interaction between the two metals and the low performance of bimetallic composites, Form a metallurgical bond between the two alloys, with excellent mechanical properties

Method used

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  • Method for preparing double-metal compound material through combined solid-state copper solid-liquid compounding and rolling

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Embodiment 1

[0032] This embodiment relates to a method for preparing a bimetallic composite material by combining solid-liquid compounding and rolling of solid copper, including the following steps:

[0033] Step 1. Perform thermal spraying zinc surface treatment on the solid Cu-Cr-Zr copper alloy preset material to be connected, and the thickness of the zinc layer is 15 μm;

[0034] Step 2, presetting the surface-treated solid Cu-Cr-Zr copper alloy in the required position in the mold cavity;

[0035] Step 3: Melt the 6101 extruded aluminum alloy in the resistance furnace and pour it into the mold cavity. Using the processing technology of metal mold casting, the pouring temperature is 680°C to form a metallurgical bond between copper and aluminum;

[0036] Step 4. Perform annealing treatment on the obtained Cu-Cr-Zr-6101 copper-aluminum bimetallic rolling billet before rolling. The annealing temperature is 100° C. and the time is 100 minutes. Then continue the hot rolling process with a...

Embodiment 2

[0040] This embodiment relates to a method for preparing a bimetallic composite material by combining solid-liquid compounding and rolling of solid copper, including the following steps:

[0041] Step 1. Perform thermal spraying zinc surface treatment on the solid T2 red copper preset material to be connected, and the thickness of the zinc layer is 15 μm;

[0042] Step 2, presetting the surface-treated solid T2 red copper at the required position in the mold cavity;

[0043] Step 3: Melt the A356 cast aluminum alloy in the resistance furnace and pour it into the mold cavity. Using the processing technology of squeeze casting, the pouring temperature is 700°C, and the squeeze casting pressure is 70MPa to form a metallurgical bond between copper and aluminum;

[0044] Step 4. Perform annealing treatment on the obtained T2-A356 copper-aluminum bimetallic rolling billet before rolling. The annealing temperature is 300° C. for 20 minutes, and then hot rolling is continued. The redu...

Embodiment 3

[0048] This embodiment relates to a method for preparing a bimetallic composite material by combining solid-liquid compounding and rolling of solid copper, including the following steps:

[0049] Step 1. Perform thermal spraying zinc surface treatment on the solid T2 red copper preset material to be connected, and the thickness of the zinc layer is 15 μm;

[0050] Step 2, presetting the surface-treated solid T2 red copper at the required position in the mold cavity;

[0051] Step 3: Melt the AZ91 magnesium alloy in the resistance furnace and pour it into the mold cavity. Using the processing technology of squeeze casting, the pouring temperature is 650°C, and the squeeze casting pressure is 50MPa, so that the metallurgical bond between aluminum and magnesium is formed;

[0052] Step 4. Perform annealing treatment on the obtained T2-AZ91 copper-magnesium bimetallic rolling billet before rolling. The annealing temperature is 350° C. for 5 minutes, and then continue the warm roll...

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Abstract

The invention discloses a method for preparing a double-metal compound material through combined solid-state copper solid-liquid compounding and rolling. The method includes the steps of preparing a double-metal rolled blank through solid-liquid compound casting and rolling the blank to prepare the double-metal compound material. The method has the advantages that by means of the technical means of solid-liquid connection is conducted after the surface zinc layer protection is achieved, a series of problems such as oxidation slag inclusion, air suction, heat cracking and composition segregation are solved, and the problems are prone to occurrence when copper and other materials are connected through a traditional welding method; the defect that an oxidation film is formed on the surface of copper easily at high temperature and hinders metallurgical bonding between copper and the other materials is overcome, the compound material is formed through a rolling method, intermediate compounds formed between copper and aluminum in the solid-liquid compounding process are broken, and the mechanical properties and physical properties of the double-metal compound material and a base material are improved. Gas protection is not needed, the composition technology is simple, technological conditions are lax, the requirement for technological equipment is low, the interface bonding strength is high, and conductivity is good.

Description

technical field [0001] The invention belongs to the field of preparation of bimetallic composite materials, and specifically relates to a method for preparing bimetallic composite materials through solid-liquid composite casting and rolling combination of copper materials, that is, a method for preparing bimetallic composite materials through solid-liquid composite casting and rolling combination technology. material method. Background technique [0002] With the development of modern industrial technology, the requirements for the comprehensive performance of materials are getting higher and higher. Under many working conditions, it is difficult for a single component metal material to meet the requirements. Therefore, the research and preparation of new composite materials has become an important development direction in the field of materials science and engineering. Bimetallic composite material is a new type of composite material prepared by combining two metals with d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16C22F1/08C22F1/04B21B3/00
CPCB22D19/16B21B3/00B21B2003/005B22D19/0081C22F1/04C22F1/08
Inventor 王渠东刘腾刘国平
Owner SHANGHAI JIAO TONG UNIV
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