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A kind of cobalt-containing high-strength high-hardness wear-resistant copper alloy and preparation method thereof

A high-strength, high-hardness technology, applied in the field of cobalt-containing high-strength, high-hardness wear-resistant copper alloy and its preparation, high-strength, high-hardness wear-resistant aluminum bronze alloy material and its preparation field, can solve problems such as only strength

Active Publication Date: 2021-02-12
SHENYANG JINKE COLORED PRODS RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The highest hardness copper alloy used in automobile manufacturing can reach 39-44 HRC, but the strength is only 500-540Mpa

Method used

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  • A kind of cobalt-containing high-strength high-hardness wear-resistant copper alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 5

[0040] Example 5: The mechanical properties are the best, the strength is 1083Mpa, the elongation is 4.84%, and the hardness is HRC45. Al, Fe, and Co are all intermediate values ​​within the range described in the present application.

Embodiment 2 and 3

[0041] Examples 2 and 3: The components are all within the scope of the present application, and the mechanical properties are close to those of Example 5.

Embodiment 1

[0042] Example 1: Co is within the range described in this application, but since Al and Ni are both smaller than the range described in this application, the mechanical properties are not optimal. Due to the addition of Co, the mechanical properties of the alloy in Example 1 are still greatly improved compared with the aluminum bronze without Co and with similar composition, indicating that Co plays a role in improving the mechanical properties of aluminum bronze.

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Abstract

The invention discloses a cobalt-containing high-strength, high-hardness and wear-resistant copper alloy and a preparation method thereof. The chemical element composition and mass percentage of the copper alloy are: Al 10.5-11.5%; Fe 5.5-6.5%; Ni 4.5% ‑5.5%; Co 0.8‑1.5%; Be 0.08‑0.12%; Re 0.05‑0.2%; balance copper. The present invention achieves tissue refinement through reasonable matching of each element. α, α+γ 2 And K phase, in order to improve the strength, hardness, wear resistance, plasticity and other comprehensive properties of the alloy, and obtain a wide range of application prospects.

Description

technical field [0001] The invention relates to the field of metal and alloy material manufacturing, in particular to a high-strength, high-hardness, wear-resistant aluminum bronze alloy material and a preparation method thereof, and particularly provides a high-strength, high-hardness, wear-resistant copper alloy containing cobalt and a preparation method thereof. Background technique [0002] Aluminum bronze has many advantages and has become an indispensable copper alloy material in industry. Its characteristics are: [0003] (1) The crystallization range of aluminum bronze is small and has good fluidity. During the solidification process, the volume shrinkage is relatively large, and it is not easy to cause component segregation and dispersed shrinkage cavities. [0004] (2) In the atmosphere, seawater and most organic acid solutions, it exhibits corrosion resistance that ordinary materials do not have. [0005] (3) Good mechanical properties and wear resistance. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/01C22C1/03C22C1/06C22F1/08
Inventor 王成孙陆林石路刘永涛李绍江
Owner SHENYANG JINKE COLORED PRODS RES