A preparation process of external oxidation dispersion strengthened copper alloy

A dispersion-strengthened copper and preparation process technology is applied in the field of preparation of external oxidation dispersion-strengthened copper alloys. The equipment is simple and reliable, and the effect of market-oriented production is realized

Inactive Publication Date: 2017-09-01
黄天增
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Problems solved by technology

[0003] The above two methods are powder metallurgy methods, the process flow is long, and the environmental quality requirements are strict in the process of alloy powder making and mixing. A little carelessness will pollute the alloy powder and affect the next process and finished products. quality
The long process route has resulted in many management elements, difficult processing, low yield rate, unstable quality, and difficulty in mass supply, so the degree of marketization is not high so far

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  • A preparation process of external oxidation dispersion strengthened copper alloy

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Embodiment Construction

[0034] In order to further explain the technical means and effects that the present invention takes to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation of the preparation process for a kind of external oxidation dispersion strengthened copper alloy proposed according to the present invention Mode, structure, feature and effect thereof are as follows in detail.

[0035] Process method of the present invention is specifically as follows:

[0036] (1) Copper and aluminum are smelted according to different alloy grades, the Cu content is controlled at 99.93-99.3wt%, the Al content is 0.07-0.7wt%, the temperature of the melting furnace is controlled at 1250-1300°C, and the selection of furnace functions must ensure The alloy components are mixed and stirred evenly;

[0037](2) Carry out uplifting or horizontal or belt-type continuous casting of the smelted copper and aluminum a...

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Abstract

The invention relates to a preparation process of external oxidation dispersion strengthened copper alloy, which involves melting metal copper and metal aluminum in proportion, the temperature of the melting furnace is 1250-1300°C, continuously casting the smelted copper and aluminum alloy, and controlling the casting crystallization The cooling water temperature of the device is used to obtain oxygen-containing alloy copper rods; the oxygen-containing alloy copper rods are repeatedly and continuously extruded in a closed extrusion chamber by a continuous extruder to obtain alloy copper rods with uniform components; then high-temperature aging treatment is performed, Substitution reaction occurs fully under protective gas to ensure the formation of Al2O3, and after cold drawing treatment, dispersion-strengthened copper alloy is obtained, and unqualified products are eliminated to obtain finished Al2O3 dispersion-strengthened copper alloy. The invention shortens the preparation process of the dispersion-strengthened copper alloy, has low cost, and the obtained copper alloy product has stable quality and excellent performance, satisfies the social demand for high-strength and high-conductivity dispersion-strengthened copper alloy, is convenient to be popularized and used in more fields, and has economic benefits Well, it's practical.

Description

technical field [0001] The invention belongs to the technical field of copper alloy processing in the nonferrous metal industry, and in particular relates to a preparation process of external oxidation dispersion strengthened copper alloy. Background technique [0002] At present, the two most commonly used methods for producing alumina dispersion-strengthened copper alloys are internal oxidation and mechanical alloying. Preparation→oxygen mixing→isostatic pressing→internal oxidation→reduction→envelope→hot extrusion→drawing→testing→finished product. Its representative patent is: "A kind of Al 2 o 3 Dispersion strengthened copper alloy and its preparation method", application number: CN200610128421.8. The process of mechanical alloying process is: copper powder + alumina powder → powder mixing → isostatic pressing → reduction → hot extrusion → drawing → testing → product. Its representative patent is: "Process Method for Producing Dispersion Strengthened Copper Alloy Mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C9/00C22C32/00
CPCC22C1/1036C22C9/00C22C32/0021C22C1/1052
Inventor 黄天增
Owner 黄天增
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