Silver-based alloy material and application thereof

A silver-based alloy and alloy technology, applied in the direction of contact materials, can solve the problems of low hardness and wear resistance, unstable contact resistance, and low contact reliability, so as to improve arc burning resistance, hardness and Softening temperature, the effect of solving the instability of contact resistance

Active Publication Date: 2011-07-27
深圳市深汕特别合作区中金岭南新材料有限公司
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of low softening temperature, unstable contact resistance, low contact reliability, low softening temperature, low hardness and wear resistance of the existing AgCu alloy material, and provide A silver-based alloy material

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  • Silver-based alloy material and application thereof

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Embodiment Construction

[0019] The present invention is further illustrated below with examples, but the present invention is not limited thereto.

[0020] The performance data of the formula of embodiment 1~4 and the silver-based alloy material that makes, and AgCu 4 The performance data of the alloy are shown in Table 1. The purity (mass percentage) of raw materials used in each embodiment is: Ag≥99.99%, Cu≥99.99%, Ni≥99.99%, Gd≥99.96%.

[0021] Allowable impurity content (mass percentage) in the silver-based alloy material prepared in each embodiment: Fe≤0.002%, Pd≤0.002%, Sb≤0.002%, Bi≤0.002%.

[0022] Table 1 Silver-base alloy material of the present invention and performance data of AgCu4 alloy

[0023]

[0024] The preparation method of embodiment 1~4 is as follows:

[0025] By mass percentage (%): as AgCu 4 Alloy, Ni and Gd are used as raw materials, and the following procedures are carried out according to the recipes in each example: ①Vacuum argon protection smelting ②Ingot 700°C / 3h ...

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Abstract

The invention discloses a silver-based alloy material and application thereof. The silver-based alloy material can be used as sliding electric contact material for a light and medium load micromotor and improves the hardness and softening temperature of Ag-Cu alloy, thereby improving the electric arc burning resistance, fusion welding resistance and metal transfer resistance of the material and improving the electric contact reliability of the Ag-Cu alloy. Therefore, the material can solve the problems of unstable contact resistance, reduced contact reliability and low hardness and abrasive resistance under higher temperature of the AgCu4 alloy.

Description

technical field [0001] The invention specifically relates to a silver-based alloy material and its application. Background technique [0002] Pure silver has the highest electrical conductivity and stable contact resistance, and is widely used as an electrical contact material with high conductivity and low-to-medium current range. However, the mechanical properties of pure silver are poor, and there are defects such as natural aging softening, transfer and welding under high power load conditions. Alloying methods can significantly improve the hardness, strength and wear resistance of silver materials. For a long time, Ag-Cu-based solid-solution-strengthened series alloys and Ag-Ni-based dispersion-strengthened series alloys have been formed in electrical contact materials. Among them, silver-copper alloy is the most widely used. However, in industrial atmospheres, especially in high temperature, high humidity and hydrogen sulfide-containing atmospheres, non-conductive s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/08H01H1/02
Inventor 王新建王耀东于磊阮文魁赵典立何青云
Owner 深圳市深汕特别合作区中金岭南新材料有限公司
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