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Ultrahigh-strength high-toughness high corrosion-resisting CuNiSiNbSn elastic copper alloy and preparation method thereof

An elastic copper alloy, high corrosion resistance technology, applied in CuNiSiNbSn elastic copper alloy and its preparation, ultra-high strength, high toughness and high corrosion resistance CuNiSiNbSn elastic copper alloy and its preparation field, can solve the lack of industrialized preparation process, restrict electrical appliances Industrial development, low alloy elongation and other problems, to achieve the effect of good corrosion resistance, high strength and excellent electrical conductivity

Inactive Publication Date: 2015-05-20
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-vacuum secondary remelting mentioned in it will bring huge energy consumption in the process of industrial production
(2) The preparation method described in the patent "A preparation method of ultra-high strength and high stress relaxation resistance CuNiSiAl elastic copper alloy" (ZL201010571290.7) makes the prepared alloy have good comprehensive properties, but the elongation of the alloy The rate is low, and there is no description of the industrial preparation process
(3) The composition and preparation process described in the patent "A CuNiSi-based Elastic Copper Alloy and Its Preparation Method" (CN201310025570.1) make the prepared alloy have excellent properties, but there are also low elongation and Lack of description of industrial preparation process
Due to the existing elastic copper alloy composition and / or preparation process, the existing elastic copper alloy cannot have high strength and excellent corrosion resistance and plastic toughness that meets the requirements, which seriously restricts the new generation of electrical appliances. industrial development

Method used

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  • Ultrahigh-strength high-toughness high corrosion-resisting CuNiSiNbSn elastic copper alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] According to the components corresponding to Example 1 in Table 1, the preparation is carried out according to the process flow described in Example 1, and the condition parameters during the preparation process are shown in Table 1 corresponding to the condition parameters of Example 1;

[0065] The specific operation process is as follows:

[0066] Step 1 smelting and casting

[0067] According to the designed alloy group distribution, electrolytic copper, electrolytic nickel (nickel source), elemental silicon (silicon source), elemental niobium (niobium source), electrolytic tin (tin source), copper-magnesium intermediate alloy (magnesium source), copper- After the chromium master alloy (chromium source), the prepared electrolytic copper is first added to the intermediate frequency induction melting furnace, and the temperature is raised to 1300-1320 ℃, and then the prepared electrolytic nickel, elemental silicon, elemental niobium, electrolytic tin, and copper are added- ...

Embodiment 2

[0087] According to the components corresponding to Example 2 in Table 1, the preparation is carried out according to the process flow described in Example 2, and the condition parameters in the preparation process are shown in the corresponding condition parameters of Example 2 in Table 1.

[0088] The specific operation process is as follows:

[0089] Step 1 smelting and casting

[0090] According to the designed alloy group distribution, electrolytic copper, electrolytic nickel (nickel source), elemental silicon (silicon source), elemental niobium (niobium source), electrolytic tin (tin source), copper-magnesium intermediate alloy (magnesium source), copper- After the chromium master alloy (chromium source), the prepared electrolytic copper is first added to the intermediate frequency induction melting furnace, and the temperature is raised to 1300-1320 ℃, and then the prepared electrolytic nickel, elemental silicon, elemental niobium, electrolytic tin, and copper are added- Chro...

Embodiment 3

[0110] According to the components corresponding to Example 3 in Table 1, the preparation is carried out according to the process flow described in Example 3. The condition parameters in the preparation process are shown in the corresponding condition parameters of Example 3 in Table 1.

[0111] The specific operation process is as follows:

[0112] Step 1 smelting and casting

[0113] According to the designed alloy group distribution, electrolytic copper, electrolytic nickel (nickel source), elemental silicon (silicon source), elemental niobium (niobium source), electrolytic tin (tin source), copper-magnesium intermediate alloy (magnesium source), copper- After the chromium master alloy (chromium source), the prepared electrolytic copper is added to the intermediate frequency induction melting furnace, and the temperature is increased to 1310-1330°C, and then the prepared electrolytic nickel, elemental silicon, elemental niobium, electrolytic tin, and copper are added- Chromium ma...

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Abstract

The invention relates to an ultrahigh-strength high-toughness high corrosion-resisting CuNiSiNbSn elastic copper alloy and a preparation method thereof, and belongs to the technical field of elastic alloy preparation. The ultrahigh-strength high-toughness high corrosion-resisting CuNiSiNbSn elastic copper alloy is prepared from the following components in percentage by mass: 6.0-7.5% of Ni, 1.0-1.4% of Si, 0.8-1.2% of Nb, 0.5-0.8% of Sn, 0.1-0.15% of Mg, 0.1-0.15% of Cr and the balance of Cu and inevitable impurities. The alloy preparation process comprises the following steps: smelting, performing semicontinuous casting, uniformly annealing, carrying out hot rolling, carrying out cold rolling, performing solid solution, performing combined aging (pre-aging treatment, cold-rolling and aging treatment), performing finish rolling, and annealing at low temperature. The ultrahigh-strength high-toughness high corrosion-resisting CuNiSiNbSn elastic copper alloy can meet requirements of various conductive elastic devices and is applicable to ultrahigh-strength high-toughness high corrosion-resisting conductive elastic devices requested in the electronic industry and electrical engineering, the automobile industry and the ocean transportation industry.

Description

Technical field [0001] The invention relates to an ultra-high-strength, high-toughness and high-corrosion resistant CuNiSiNbSn series elastic copper alloy and a preparation method thereof, in particular to a CuNiSiNbSn series elastic copper alloy with ultra-high strength, high toughness and high corrosion resistance and a preparation method thereof; Technical field of elastic alloy preparation. Background technique [0002] Conductive elastic alloys are indispensable and important materials in electronics and electrical engineering, machinery and meters, marine transportation, and automobile industry. It is widely used in the manufacture of various elastic components, such as micro switches, diaphragms, diaphragms, elastic sensitive components, energy storage components, frequency components, reeds, repeaters, etc. The performance of the elastic element determines the overall accuracy, reliability and life of the instrument. With the development of modern industry and science a...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/03C22F1/08
CPCC22C1/03C22C9/06C22F1/08
Inventor 李周雷前潘志勇肖柱
Owner CENT SOUTH UNIV
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