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High strength copper alloy forging material

A copper alloy, high-strength technology, applied in the field of high-strength copper alloy forging materials, can solve problems such as easy cracking, and achieve the effects of not easy cracking, high thermal conductivity, and high-strength thermal conductivity.

Active Publication Date: 2016-08-10
JAPAN STEEL WORKS M&E INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, in general, in Cu alloys, cracks are likely to occur during forging or heat treatment, so in addition to hot workability, it is also necessary to improve ductility

Method used

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Experimental program
Comparison scheme
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Embodiment

[0045] Embodiments of the present invention will be described below.

[0046] The raw materials were mixed to obtain the ingredient composition of Table 1 (including other unavoidable impurities), and melted in a vacuum induction melting furnace to prepare an alloy of 100 mm (diameter)×200 mm (length). These alloys were hot forged using a hammer at 900° C. to form plates having a thickness of 25 mm. After holding at 970° C. for 4 hours, solution treatment was performed by cooling with water. Then, an aging treatment for materials suitable for each component is performed at 400˜500° C. for 1–30 hours, thereby obtaining sample materials.

[0047]

[0048] Regarding the prepared sample materials, the evaluations shown below were performed.

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Abstract

The invention relates to a high-strength copper alloy forged material with properties of high hardness, high strength and high thermal conductivity. The high-strength copper alloy forging material contains, in terms of mass %, 3 to 7.2% Ni, 0.7 to 1.8% Si, 0.02 to 0.35% Zr and 0.002 to 0.05% P, and also contains a total of 1.5 as needed. % or less of one or more of Cr, Mn and Zn, whereby an appropriate amount of Zr and P makes it less likely to cause cracks in the material during processing or heat treatment. After processing and heat treatment, the forged material of the present invention has the properties of high hardness, high strength and high thermal conductivity, and can be suitable for resin injection molding materials, aircraft parts, etc.

Description

technical field [0001] The present invention relates to a high-strength copper alloy forging material suitable for forging formed products and the like, the forging formed products including resin injection molding materials. Background technique [0002] As alloys excellent in electrical and thermal conductivity, copper alloys such as brass (Cu—Zn base), bronze (Cu—Sn base), Be copper, and Corson alloy (Cu—Ni—Si base) have been used so far. In particular, Be copper, Corson alloy, and the like have been used for resin injection molding materials, aircraft parts, and the like that require strength, hardness, and thermal conductivity. However, the above-mentioned Be copper has a concern that the dust generated when it is melted or processed is toxic, and thus a substitute thereof has been demanded. In addition, for Corson alloys, higher thermal conductivity, higher strength and higher hardness are required. [0003] In addition, in general, in Cu alloys, cracks are likely to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06B21J1/00C22F1/08C22F1/00
CPCB21J1/003C22F1/08C22C1/02C22C9/06
Inventor 宫部芳春水泽护田中慎二
Owner JAPAN STEEL WORKS M&E INC
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