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Copper alloy with softening resistance and preparation method and application thereof

A copper alloy, anti-softening technology, used in metal/alloy conductors, conductive materials, conductive materials, etc., can solve problems such as inability to meet

Active Publication Date: 2019-08-23
宁波博威新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, these existing copper alloy materials cannot meet the requirements of electronic and electrical components that tend to be miniaturized, environmentally friendly and economical to a certain extent, and a copper alloy material that meets the design requirements and has an advantage in cost of great significance

Method used

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  • Copper alloy with softening resistance and preparation method and application thereof

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Embodiment Construction

[0036] Below in conjunction with embodiment the present invention is described in further detail.

[0037] According to the composition in Table 1, the copper alloy of the composition combination shown in Table 1 was melted at 1150° C., and an ingot having a specification of 170 mm×320 mm was produced. After the above-mentioned ingot was kept at 800°C for 5 hours, it was hot-rolled to a thickness of 16.5mm. After the hot-rolling was completed, it was cooled with water online; then, the surface was milled to a thickness of 15mm, and then cold-rolled to a thickness of 2mm. Then heat the cold-rolled plate to 440°C, keep it warm for 8h, and carry out the first aging; carry out the second cold-rolling of the aged material, cold-rolled to 0.4mm, and then hold it at 400°C for 8h The second aging treatment; finally, the finish cold rolling is carried out, and the rolling target plate thickness is 0.3 mm; after the finish cold rolling, it is kept at 210° C. for 4 hours for low-temperat...

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Abstract

The invention discloses a copper alloy with softening resistance. The copper alloy comprises, by weight, 5.01%-15.0% of Zn, 0.1%-2.0% of Sn, 0.01%-2.0% of Ni, 0.01%-1.0% of Si, 0.001%-1.5% of Cr, andthe balance Cu and inevitable impurities. Using Cu-Zn-Sn as a matrix and adding the Ni, the Si, the Cr and other elements, the copper alloy with yield strength greater than or equal to 550 MPa, conductivity greater than or equal to 30% IACS, excellent bending processing performance and high temperature resistance softening temperature greater than or equal to 450 DEG C is obtained by combining solid solution strengthening and aging strengthening, so that the needs of the alloy in a developing electrical and electronic industry are met. The copper alloy with softening resistance and a preparation method and application thereof can solve various waste utilization problems, including tin plating waste such as tin-phosphorus bronze, a Cu-Ni-Si alloy and brass, so that the reducing of the environmental burden, the reducing of the alloy preparation cost and the promoting of the recycling of the waste are facilitated.

Description

technical field [0001] The invention relates to the technical field of copper alloy and its preparation, in particular to a softening-resistant copper alloy and its preparation method and application. Background technique [0002] In recent years, with the development of the electronics industry, various electronic devices have developed towards miniaturization, thinning and light weight, and the weight reduction and high integration of the devices used in them have promoted the miniaturization, light weight and high performance of electronic components . At the same time, higher requirements are put forward for the performance of structural parts, requiring the materials used in the preparation of parts to meet performance requirements such as strength, conductivity, and bending. More importantly, with the miniaturization and concentration of electronic components, the accompanying The problem of heat generation cannot be ignored, so the improvement of anti-softening perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C1/02C22F1/08H01B1/02
CPCC22C1/02C22C9/04C22F1/08H01B1/026
Inventor 周耀华黄强李建刚赵红彬廖学华杨朝勇杨泰胜
Owner 宁波博威新材料有限公司
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