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Copper alloy sheet material and manufacturing method thereof

A manufacturing method, copper alloy technology, applied in the direction of metal/alloy conductor, cable/conductor manufacturing, root rod/rod/wire/strip conductor, etc., can solve the problem of large anisotropy of strength, coarse cube orientation grains, cube Problems such as poor dispersion of oriented grains, etc., to achieve the effect of excellent bending workability and excellent strength

Active Publication Date: 2017-01-18
FURUKAWA ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in Patent Document 6, as a result of the solution treatment, the obtained cube-oriented grains are coarse, and the equidispersity of the cube-oriented grains is poor, and the anisotropy of the strength is also large.

Method used

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  • Copper alloy sheet material and manufacturing method thereof
  • Copper alloy sheet material and manufacturing method thereof
  • Copper alloy sheet material and manufacturing method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1～14 and comparative example 1～4

[0110] In a high-frequency melting furnace, an alloy containing the amounts of Ni, Si, and additional elements shown in Table 1, and the remainder consisting of Cu and unavoidable impurities was melted, and heated at 0.1°C / sec to 100 The casting was performed by cooling at a cooling rate of °C / sec [Step 1] to obtain an ingot.

[0111] After the homogenization heat treatment [Step 2] of the ingot at 800°C to 1020°C for 3 minutes to 10 hours, hot rolling as hot working is performed at 700°C to reheat temperature (1020°C) [ In step 3], water quenching (corresponding to cooling [step 4]) is further performed to obtain a hot rolled sheet. Next, face cutting [step 5] of the surface of the hot-rolled sheet is performed to remove the oxide film. Thereafter, cold rolling [step 6] with a rolling ratio of 80% to 99.8% is performed to obtain a thin plate.

[0112] Next, intermediate annealing of the sheet is performed by heat treatment at 400°C to 700°C for 5 seconds to 20 hours [Step 7],...

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Abstract

A copper alloy sheet material and a method for producing the same, the copper alloy sheet material has the following composition: containing 1.0% by mass to 5.0% by mass of Ni, 0.1% by mass to 2.0% by mass of Si, and the remainder consisting of copper and Unavoidable impurity composition; in crystal orientation analysis by electron backscattered diffraction method, the area ratio of crystal grains having an orientation within 15° from the cube orientation {001}<100> is 5% or more and 50% or less , 40 or more and 100 or less crystal grains having an orientation shifted within 15° from the cube orientation {001}<100> are dispersed within a 60 μm square. According to the manufacturing method of the copper alloy sheet material of the present invention, it is possible to provide a copper alloy sheet material which is excellent in bending workability, has excellent strength, and has less anisotropy in the direction parallel to rolling and the direction perpendicular to rolling, and is suitable for use in Lead frames, connectors, terminal materials, etc. for electrical and electronic equipment, and connectors, terminal materials, relays, switches, etc. for automobiles, etc.

Description

technical field [0001] The present invention relates to a copper alloy sheet material and a manufacturing method thereof, and the copper alloy sheet material can be applied to lead frames, connectors, terminal materials, relays, switches, sockets, etc. for electric and electronic equipment. Background technique [0002] The characteristic items required for copper alloy materials used for electrical and electronic equipment include electrical conductivity, yield strength (yield stress), tensile strength, bending workability, and stress relaxation resistance. In recent years, along with miniaturization, weight reduction, high performance, high-density mounting of electric and electronic equipment, and high temperature of the use environment, the level of demand for these characteristics has been increasing. [0003] Conventionally, copper-based materials such as phosphor bronze, red copper, and brass have been widely used in addition to iron-based materials as general electri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22C9/10C22F1/08H01B1/02H01B5/02H01B13/00C22F1/00
CPCC22C9/06C22C9/10C22F1/02C22F1/08C22F1/10H01B1/02H01B5/02H01B13/00
Inventor 矶松岳己金子洋佐藤浩二江口立彦
Owner FURUKAWA ELECTRIC CO LTD
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