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A kind of high-strength and high-elastic niobium-containing copper alloy and its preparation method

A copper alloy and high-elastic technology, applied in metal rolling, temperature control, elongation control, etc., can solve the problems of strong volatility of beryllium element, environmental pollution, strong carcinogenicity, etc., to reduce uneven composition and strengthen strength , super high strength effect

Active Publication Date: 2020-06-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When beryllium bronze is smelted under non-vacuum conditions, the beryllium element is highly volatile and easily oxidized. Beryllium oxides and dust will cause harm to the human body, even have strong carcinogenicity, and will cause serious pollution to the environment.

Method used

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  • A kind of high-strength and high-elastic niobium-containing copper alloy and its preparation method
  • A kind of high-strength and high-elastic niobium-containing copper alloy and its preparation method
  • A kind of high-strength and high-elastic niobium-containing copper alloy and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0034] In this embodiment, a high-strength and high-elastic niobium-containing copper alloy is composed of the following components by weight percentage: Ni 22%, Mn 22%, Al 1.2%, Nb 0.3%, Cr 0.3%, Zr 0.1%, and the balance is Cu, The sum of the mass percentages of each component is 100%.

[0035] The preparation method of the above-mentioned high-strength and high-elastic niobium-containing copper alloy, such as figure 1 shown, including the following steps:

[0036] (1) Vacuum melting: batching is carried out according to the components of the copper alloy, and the alloy is melted in a vacuum melting furnace at a melting temperature of 1250-1350°C to obtain a copper alloy solution;

[0037] (2) Casting: cast the copper alloy solution at 1100-1200°C, and obtain alloy ingots after cooling;

[0038] (3) Homogenization: the ingot is subjected to homogenization treatment, the homogenization temperature is 920° C., and the time is 8 hours to obtain a homogenized ingot;

[0039] (...

Embodiment 2

[0048]In this embodiment, a high-strength and high-elastic niobium-containing copper alloy is composed of the following components by weight percentage: Ni 18%, Mn 18%, Al 2.0%, Nb 0.5%, Cr 0.5%, Zr 0.2%, and the balance is Cu, The sum of the mass percentages of each component is 100%, and its preparation method is the same as in Example 1.

Embodiment 3

[0050] In this embodiment, a high-strength and high-elastic niobium-containing copper alloy is composed of the following components by weight percentage: Ni 22%, Mn 22%, Al 0.5%, Nb 0.2%, Cr 0.2%, Zr 0.05%, and the balance is Cu, The sum of the mass percentages of each component is 100%, and its preparation method is the same as in Example 1.

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Abstract

The invention discloses a high-strength high-elasticity niobium-containing copper alloy and a preparation method thereof, and belongs to the technical field of copper alloy preparation. According to the high-strength high-elasticity niobium-containing copper alloy, the Vickers hardness is higher than or equal to 420 HV, the tensile strength is larger than or equal to 1300 MPa, the elongation is larger than or equal to 7.5%, the alloy grains are uniform and fine, the ultra-high strength, plasticity and elastic modulus are achieved, and the copper alloy and the preparation method can be widely used in the fields of high and new technologies such as automobiles, rail transits, electronic and electrical and aerospace; The preparation method of the high-strength high-elasticity niobium-containing copper alloy can effectively refine the grain size of the alloy, control the size and distribution of a precipitation second phase, strengthen the strength and elasticity of the alloy and improve the plasticity of the alloy.

Description

technical field [0001] The invention belongs to the technical field of copper alloy preparation, and in particular relates to a high-strength and high-elasticity niobium-containing copper alloy and a preparation method thereof. Background technique [0002] High-strength and high-elastic copper alloy is a kind of copper alloy with high strength and high elastic modulus. In addition to strength and elasticity, it also has excellent performance in fatigue resistance, corrosion resistance and wear resistance. It is mainly used in instruments, navigation , electronics, petrochemical, aerospace and other fields, among which the most widely used high-strength and high-elastic copper alloy is beryllium copper. With the continuous development of the new generation of information technology industry technology, in order to meet the needs of deep processing, higher requirements are put forward for the grain size and anisotropy of copper alloys. [0003] When beryllium bronze is smelt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C9/05C22C9/06C22F1/08B21B3/00B21B37/56B21B37/74
Inventor 龚深李周肖柱刘斌唐帅康
Owner CENT SOUTH UNIV
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