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Copper alloy sheet material, connector using same, and copper alloy sheet material production method for producing same

A copper alloy and plate technology, applied in the direction of metal/alloy conductors, rods/rods/wires/strip conductors, etc., can solve the problems of insufficient improvement of bending workability and insufficient control of crystal orientation, and achieve bending workability. The effect of excellent, excellent strength

Active Publication Date: 2014-04-09
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, only the crystal planes in the sheet surface direction were measured, and no evaluation was made as to which crystal planes were oriented in the rolling direction or the sheet width direction, so there may be insufficient control of crystal orientation and insufficient improvement in bending workability.

Method used

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  • Copper alloy sheet material, connector using same, and copper alloy sheet material production method for producing same
  • Copper alloy sheet material, connector using same, and copper alloy sheet material production method for producing same
  • Copper alloy sheet material, connector using same, and copper alloy sheet material production method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] The alloy containing Ni, Co, Si shown in the column of alloy composition in Table 1-1 and Table 1-2, and the balance is composed of Cu and unavoidable impurities is melted by a high-frequency melting furnace, and its Casting was performed to obtain ingots. Using this state as a feedstock, samples of copper alloy sheet materials of Examples 1-1 to 1-12 of the present invention and Comparative Examples 1-1 to 1-8 were produced through any of the following steps A to G. In addition, Table 1-1 and Table 1-2 show which process among A-G was used. Unless otherwise specified, the thickness of the final alloy sheet was 150 μm.

[0090] In addition, although not shown in A to G, when the trial production was carried out under the condition that the pass and the holding time of the pass exceeded 100 seconds, the temperature of the material was too low, and surface cracks or edge cracks occurred during rolling. Therefore, the trial production was suspended.

[0091] (Process A)...

Embodiment 2

[0132] The composition is as shown in the column of the alloy composition in Table 2, and the balance is composed of Cu and unavoidable impurities. In the same manner as in Example 1, Examples 2-1 to 2-8 of the present invention and Comparative Examples 2-1 to 2 were produced. The sample of the copper alloy plate material of 2-3 was measured and evaluated about various characteristics similarly to Example 1. The results are shown in Table 2.

[0133]

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PUM

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Abstract

{Problems} To provide a copper alloy sheet material, which is excellent in the bending property, has an excellent mechanical strength, and is also excellent in the stress relaxation resistance, and which is thus suitable for lead frames, connectors, terminal materials, and the like, for electrical / electronic equipments, for connectors, for example, to be mounted on automotive vehicles, and for terminal materials, relays, switches, and the like. {Means to solve} A copper alloy sheet material, having a copper alloy composition containing 0.5 to 5.0 mass% in total of at least one of Ni and Co, and 0.1 to 1.2 mass% of Si, with the balance being Cu and inevitable impurities, wherein, in a crystal orientation analysis by an electron back scatter diffraction analysis, when an area ratio of the Cube orientation {0 0 1} <1 0 0> at a surface layer of the material is designated as W0, and an area ratio of the Cube orientation at a 1 / 4 position of the total depth of the material is designated as W4, a ratio of W0 / W4 is 0.8 or more, W0 is 5% to 48%, and an average grain size is 12 to 100 µm, and wherein the copper alloy sheet material is excellent in 180° tight bending property and stress relaxation resistance.

Description

technical field [0001] The present invention relates to a copper alloy sheet material, and in more detail, to a copper alloy sheet material suitable for automotive components or lead frames for electrical and electronic instruments, connectors, terminal materials, relays, switches, sockets, etc., and connections using the copper alloy sheet material A device, and a method of manufacturing a copper alloy sheet for a connector. Background technique [0002] Copper alloy sheets used for automotive parts or lead frames for electrical and electronic equipment, connectors, terminal materials, relays, switches, sockets, etc., are required as characteristic items such as electrical conductivity, yield strength (yield stress), Tensile strength, bending processability, stress relaxation resistance properties. In recent years, along with miniaturization, weight reduction, high functionality, high-density mounting, and high temperature of the use environment of electric and electronic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22C9/00C22C9/02C22C9/04C22C9/05C22C9/10C22F1/08H01B1/02H01B5/02C22F1/00
CPCC22F1/08C22C9/06C22C9/00H01B1/02
Inventor 金子洋佐藤浩二江口立彦
Owner FURUKAWA ELECTRIC CO LTD