Method for preparing AgSnO2 wire

A technology of silver tin oxide and wire rod, applied in the field of preparation of silver tin oxide wire rod, can solve the problems of high manufacturing cost, adverse effect of additive distribution uniformity, high technical difficulty, etc., to avoid structural defects, improve tissue uniformity, guarantee The effect of distribution uniformity
CN103639232AActive Publication Date: 2014-03-19桂林金格电工电子材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
桂林金格电工电子材料科技有限公司
Publication Date
2014-03-19

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Abstract

The invention discloses a method for preparing an AgSnO2 wire. The method comprises the following steps: smelting 0.2-2 percent by mass of metal additive and the balance of Ag into alloy melt in an intermediate frequency smelting furnace, and atomizing to prepare Ag alloy powder, wherein the metal additive is selected from one or more of Bi, Cu, In and Sb; mixing the Ag alloy powder and SnO2 powder in a three-dimensional mixer, mixing the mixture in a V-shaped mixer to obtain mixed AgSnO2 powder; preparing the mixed AgSnO2 powder into an ingot blank according to a conventional method, sintering the ingot blank at high temperature in an oxygen-containing atmosphere, and performing hot extrusion and drawing to obtain the AgSnO2 wire. The AgSnO2 wire prepared by the method has the advantages that the SnO2 particles and trace additives are uniform in distribution, the material processability is excellent, the electrical performance is stable and the like, and the preparation method is simple in process and suitable for batch production.
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Description

technical field

[0001] The invention relates to the field of metal matrix composite materials, in particular to a preparation method of silver tin oxide wire. Background technique

[0002] Silver tin oxide (AgSnO 2 ) is made of silver (Ag) and tin oxide (SnO 2 ) is a metal matrix composite material made as the main component, and it is also a new generation of non-toxic and environmentally friendly electrical contact material that replaces toxic silver cadmium oxide (AgCdO) in low-voltage electrical appliances. Studies have shown that AgSnO without any additives 2 When the material is applied to low-voltage electrical appliances, it often cannot meet the requirements of electrical appliances in terms of contact resistance, arc erosion resistance and welding resistance, and sometimes it is even inferior to AgCdO materials. Through years of research, it was found that by adding AgSnO 2 Adding a small amount of metal oxides (such as bismuth oxide (Bi 2 o 3 ), copper oxide...

Claims

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