Copper alloy for electronic and electrical equipment and application

An electronic, electrical, copper alloy technology, applied to the field of alloys, can solve the problems of inability to meet the requirements of miniaturization, lightweight electronic and electrical components, insufficient comprehensive performance of brass, etc., to reduce material costs, balance bending performance, and improve materials. the effect of strength

Active Publication Date: 2019-02-15
NINGBO POWERWAY ALLOY MATERIAL
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Among the materials used in electronic and electrical equipment, the copper alloy materials currently used include brass, phosphor bronze, beryllium bronze, and copper-nickel-silicon alloy. However, these conventional copper alloy materials have the following problems: the comprehensive performance of brass is insufficient, and it is difficult to At the same time, it meets the fields with high requirements for strength ≥ 500MPa, electrical conductivity ≥ 30IACS%, stress relaxation resistance (1000 hours at 150°C, residual stress ≥ 60%) and bending performance
Therefore, this common copper alloy material cannot meet the requirements of electronic and electrical components that tend to be miniaturized, lightweight, and high-performance to a certain extent. It is of great significance to develop a copper alloy material that meets the demand.

Method used

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  • Copper alloy for electronic and electrical equipment and application
  • Copper alloy for electronic and electrical equipment and application
  • Copper alloy for electronic and electrical equipment and application

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] According to the ingredients in Table 1, melting was carried out at 1150° C. to manufacture an ingot with a size of 170mm×320mm. After the above ingot was kept at 850°C for 5 hours, hot rolling was carried out to make the plate thickness reach 16.5mm; then, face milling was carried out to make the thickness reach 15mm, and a plate with a thickness of 2mm was passed through one cold rolling; The rolled plate is heated to 440°C and kept at 8h for the first aging; the material after the first aging is subjected to the second cold rolling to 0.35mm, and then the second aging is carried out at 400°C for 8h Treatment; finally, finish cold rolling, that is, three times of cold rolling, with a rolling target plate thickness of 0.2 mm; after finish cold rolling, heat preservation at 210° C. for 4 hours for low-temperature annealing to obtain a s...

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Abstract

The invention relates to a copper alloy for electronic and electrical equipment and application. The copper alloy is characterized by comprising, by weight, 5.01 wt%-15.0 wt% of Zn, 0.1 wt%-2.0 wt% ofSn, 0.01 wt%-2.0 wt% of Fe, 0.01 wt%-0.5 wt% of P, the balance Cu and unavoidable impurities, and preferably, the weight percentage of Fe and P meets the formula: 5<=Fe/P<=100.

Description

technical field [0001] The invention relates to the field of alloys, in particular to a copper alloy for electronic and electrical equipment and its application. Background technique [0002] As a copper alloy sheet material used in electrical and electronic equipment parts, automotive parts such as connectors, lead frames, heat dissipation parts, relays, switches, sockets, etc., the yield stress, tensile strength, elongation, bending workability, There are certain requirements for fatigue resistance, stress relaxation resistance and electrical conductivity. In recent years, along with miniaturization, weight reduction, high-density mounting, and higher temperature of the operating environment, higher performance requirements have been imposed on copper alloys used in electronic equipment components and automotive components. [0003] Among the materials used in electronic and electrical equipment, the copper alloy materials currently used include brass, phosphor bronze, be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22F1/08H01B1/02
CPCC22C9/04C22F1/08H01B1/026
Inventor 周耀华李建刚黄强杨朝勇杨泰胜
Owner NINGBO POWERWAY ALLOY MATERIAL
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