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Copper alloy and composite material formed by the alloy

A technology of composite materials and copper alloys, applied in the direction of metal/alloy conductors, etc., can solve the problems of different alloy conductivity and high-temperature strength, and achieve the effects of high welding precision, high thermal conductivity, and high conductivity

Inactive Publication Date: 2008-01-30
松尾有恒
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  • Application Information

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Problems solved by technology

[0003] However, when the content of Cr in the alloy is different, the electrical conductivity and high-temperature strength of the entire alloy are different, and there is no relevant research on this content so far.

Method used

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  • Copper alloy and composite material formed by the alloy
  • Copper alloy and composite material formed by the alloy
  • Copper alloy and composite material formed by the alloy

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Embodiment Construction

[0045] This copper alloy material is made of Cu with 5-25% by weight of Cr added. Depending on the amount of Cr, it can reduce electrical conductivity and improve high-temperature strength. It depends on the use of mold materials, heat dissipation materials and electrode materials for welding materials. Adjust the Cr content.

[0046] A copper alloy composed of 5-25% by weight of Cr and the remainder of Cu. Its casting structure has a unique monotectic reaction initial phase of this alloy, that is, the combination of pure Cr phase and 0.89% by weight of the parent phase of Cr-Cu. As shown in Figure 1.

[0047] The specific processing technology is as follows:

[0048] Dissolution casting→900℃ hot extrusion→900℃ solid solution heat treatment→cold drawing→

[0049] The aging treatment at 550°C has a relatively simple processing technology.

[0050] In the Cr-Cu binary copper alloy matrix, the solubility of Cr is about 0.89%. It belongs to the same monotectic reaction alloy as the Nb...

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Abstract

The invention relates to a copper alloy and a compound material formed by the copper alloy. The copper alloy can be used for mould material, heat dispersing material and electrode material which is high in intensity and used for a high electrical conductivity welding device. The alloy contains 5-25 weight percent of Cr, and the rest component is copper; other functions of the copper alloy can be improved by being added with 0.01-0.3 weight percent of Nb or 0.01-0.3 weight percent of Si or 0.01-0.3 weight percent of Mg; the compound material has a core formed by the copper alloy with 5.0-25.0 weight percent of Cr and a peripheral layer arranged at the periphery of the core; the material of the peripheral layer is oxygen-free copper or copper alloy with 0.6-1.2 weight percent of Cr; the ratio of the volume of the core to the whole compound material is 1 / 10 to 1 / 3. The compound material can save 10 percent of electricity, improve the number of welding points or welding time and 15 percent of efficiency can be improved in total.

Description

Technical field [0001] The invention relates to a copper alloy and a composite material composed of the alloy. The copper alloy and the composite material are used for mold materials, heat dissipation materials, and electrode materials on welding devices. Background technique [0002] A small amount of Cr is added to copper, and the Cr-Cu alloy after processing and heat treatment exhibits high strength, high conductivity and good wear resistance, so it is used for mold materials, heat dissipation materials and high-strength, high-conductivity welding The electrode material of the device. [0003] However, when the amount of Cr contained in the alloy is different, the conductivity and high temperature strength of the entire alloy are different. There is no relevant research on this content. Summary of the invention [0004] The object of the present invention is to provide a copper alloy with high electrical conductivity and high machinability. [0005] Another object of the pres...

Claims

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Application Information

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IPC IPC(8): C22C9/00H01B1/02
Inventor 松尾有恒
Owner 松尾有恒