Multiphase oxide particles enhanced copper-base composite material and preparing method thereof

Abstract

The invention discloses a multi-phase oxide grain enforced copper-based compound material and the preparation method thereof. The weight percentage of components is Al2O3: 0.1 to 2.0, La2O3: 0.1 to 2.0, Y2O3: 0.1 to 2.0, and the surplus is Cu. The preparation method is realized by that alloy elements of Cu, Al, La, and Y are proportioned according to the alloy design component proportion, and the CuAlLaY alloy ingot blank is prepared through the vacuum spraying forming technology and the device; the insitu chemical reaction processing is performed to the copper alloy by controlling the oxygen partial pressure, to prepare CuAl2O3La2O3Y2O3 system compound material; the compound material is performed with the processing technologies of forging, extruding, rolling, drawing, and heat treatment, to be prepared into products of complex shapes of bar material, plate material, sheet material, silk material, profile shaped material or contact, to realize even coagulation, short flow and near forming and processing; the new material has high conduction and heat conduction property, thermal stability and heat strength, electric contact properties of abrasion resistance, corrosion resistance, arc burning resistance and melting welding resistance, and intensity and processing property are more excellent than the material prepared in the conventional fusion casting method and the powder metallurgy method, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to a copper-based composite material reinforced by multi-phase oxide particles and a preparation method thereof, belonging to a new type of copper-based electrical alloy. Background technique [0002] Oxide particle reinforced copper matrix composite materials mainly include: CuAl 2 o 3 、CuY 2 o 3 、CuZr 2 o 3 , CuSiO 2 , CuMgO, CuTiO 2 etc., the most commonly used of which is CuAl 2 o 3 , which not only has good electrical and thermal conductivity, but also has high hardness, strength and softening temperature, etc., and is widely used in automobiles, electronics, electrical engineering, electromechanical and other fields. [0003] foreign to CuAl 2 o 3 The research on the preparation of materials by internal oxidation method entered the practical stage after the 1950s. In the 1970s, the United States successfully applied the powder internal oxidation method for industrial production, such as the CA194 and CA195 dispers...

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Problems solved by technology

Due to the existence of domestic materials and production processes: (1) the oxide particles are coarse and the reinforcement phase is single, and the high-temperature performance of the material is unstable; (2) the formation of the oxide particle reinforcement phase is difficult, and the material performance is unstable; (3) it cannot be directly prepared Near-form components such as ingots, plates, wheels, etc., the material preparation process is complex, the product quality is difficult to control, and the production cost is high; (4) Large-scale production cannot be formed, etc.

lead to CuAl 2 o 3 Compared with foreign countries, there is a big gap in the preparation level and comprehensive performance of materials, and the large-scale application of CuAl 2 o 3 Still dependent on imports

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