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Copper-nickel-tin alloy used for socket and preparation method thereof

A copper-nickel-tin, alloy technology, applied in the direction of metal material coating process, etc., can solve the problems of affecting appearance, electrical conductivity, unsatisfactory heat resistance, graying, etc., and achieve the effect of improving strength

Inactive Publication Date: 2020-02-11
安徽实友电力金具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper-nickel-tin alloy for switch sockets provided by the invention has excellent elasticity and good strength, and is suitable for use as a copper material for switch sockets. However, the conductivity and heat resistance of the invention are not ideal, and it will turn gray when stored in the air for a long time. Darken, affect the appearance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A copper-nickel-tin alloy for a socket, which contains the following components in terms of mass percentage: Ni: 8wt%, Sn: 2.5wt%, Si: 0.08wt%, B: 0.02wt%, W: 0.03wt%, Be: 0.01wt%, the balance is Cu; the content ratio of Si and B elements is 4.

[0025] A preparation method of copper-nickel-tin alloy for socket, comprising the following steps:

[0026] (1) Under a nitrogen protective atmosphere, add the raw materials Ni, Sn, Si, Cu, B, W, Be into the melting furnace according to the weight percentage, heat to 1220°C, and then stir the molten alloy solution and remove the slag , Sampling analysis and adjustment of composition;

[0027] (2) After the ingredients meet the formula ratio, pour the molten alloy into the cast iron mold to make an ingot;

[0028] (3) Hot-extrude the ingot, and process the ingot into a slab at 860°C;

[0029] (4) Perform solid solution treatment on the slab, the temperature of the solution treatment is 810°C, the holding time is 2h, and then ...

Embodiment 2

[0033] A copper-nickel-tin alloy for a socket, which contains the following components in terms of mass percentage: Ni: 9wt%, Sn: 2.8wt%, Si: 0.09wt%, B: 0.02wt%, W: 0.04wt%, Be: 0.02wt%, the balance is Cu; the content ratio of Si and B elements is 4.5.

[0034] A preparation method of copper-nickel-tin alloy for socket, comprising the following steps:

[0035] (1) Under a nitrogen protective atmosphere, add the raw materials Ni, Sn, Si, Cu, B, W, and Be into the melting furnace according to the weight percentage, heat to 1250°C, and then stir the molten alloy solution and remove the slag , Sampling analysis and adjustment of composition;

[0036] (2) After the ingredients meet the formula ratio, pour the molten alloy into the cast iron mold to make an ingot;

[0037] (3) Hot extrude the ingot, and process the ingot into a slab at 875°C;

[0038] (4) Perform solid solution treatment on the slab, the temperature of the solution treatment is 820°C, the holding time is 3h, and...

Embodiment 3

[0042] A copper-nickel-tin alloy for a socket, which contains the following components in terms of mass percentage: Ni: 9wt%, Sn: 3.4wt%, Si: 0.12wt%, B: 0.04wt%, W: 0.03wt%, Be: 0.02wt%, the balance is Cu; the content ratio of Si and B elements is 3.

[0043] A preparation method of copper-nickel-tin alloy for socket, comprising the following steps:

[0044](1) Under a nitrogen protective atmosphere, add the raw materials Ni, Sn, Si, Cu, B, W, and Be into the melting furnace according to the weight percentage, heat to 1250°C, and then stir the molten alloy solution and remove the slag , Sampling analysis and adjustment of composition;

[0045] (2) After the ingredients meet the formula ratio, pour the molten alloy into the cast iron mold to make an ingot;

[0046] (3) Hot extrude the ingot, and process the ingot into a slab at 875°C;

[0047] (4) Perform solid solution treatment on the slab, the temperature of the solution treatment is 820°C, the holding time is 3h, and th...

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Abstract

The invention belongs to the technical field of alloy materials, and particularly relates to a copper-nickel-tin alloy used for a socket and a preparation method thereof. The copper-nickel-tin alloy comprises the following components of, in percentage by weight, 8 wt%-12 wt% of Ni, 2.5 wt%-3.8 wt% of Sn, 0.07 wt%-0.16 wt% of Si, 0.02 wt%-0.09 wt% of B, 0.03 wt%-0.06 wt% of W, 0.01 wt%-0.02 wt% ofBe, and the balance Cu. According to the copper-nickel-tin alloy used for the socket, the components of the copper-nickel-tin alloy for the socket are optimized and adjusted, the elements have a synergistic effect, the strength, the corrosion resistance, the heat resistance and the elasticity of the copper-nickel-tin alloy can be remarkably improved, and the prepared copper-nickel-tin alloy can bestored for a long time in the air and can still maintain bright and beautiful appearance without darkening.

Description

technical field [0001] The invention belongs to the technical field of alloy materials, and in particular relates to a copper-nickel-tin alloy for sockets and a preparation method thereof. Background technique [0002] Socket is also known as power socket and switched socket. Socket refers to the insertable seat of one or more circuit connections, by which various connections can be inserted. Among them, the socket is an important part of the socket, most of which are folded into a tight "U" shape by the contact piece, and it has certain elasticity and conductivity. In my country, the vast majority of sockets are made of tin phosphor bronze material, which has high strength, good plasticity, good electrical conductivity, and is not easy to deform, but there are still disadvantages such as easy corrosion, poor elasticity, poor heat resistance, and poor brightness. The copper-nickel-tin alloy is favored by people because of its high strength, elasticity, excellent electrical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22C1/02C22F1/08C23G1/10C23G1/04C23G1/06C23C22/08
CPCC22C1/02C22C9/06C22F1/08C23C22/08C23G1/04C23G1/061C23G1/065C23G1/068C23G1/103
Inventor 李明臻王军田晓萍李佑林
Owner 安徽实友电力金具有限公司
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