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Manufacturing method of silver tin oxide contact alloy material

An alloy material, silver tin oxide technology, applied in the field of alloy manufacturing, can solve the problems of limiting the use range of silver tin oxide contacts, difficulty in material processing, uneven distribution, etc., and achieve excellent resistance to welding and arc burnout , The hardening effect is obvious, and the effect of eliminating barren areas

Inactive Publication Date: 2014-05-14
浙江乐银合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to SnQ 2 Larger particles, uneven distribution, resulting in SnQ 2 The contact resistance of the material is large, the temperature rise is large, and the temperature rise limits the scope of use of silver tin oxide contacts; at the same time, AgSnO 2 Material processing is relatively difficult and has not been well resolved

Method used

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  • Manufacturing method of silver tin oxide contact alloy material

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Embodiment 1

[0043] (Manufacturing method of embodiment 1, silver tin oxide contact alloy material)

[0044] This embodiment is a method for manufacturing a silver tin oxide contact alloy material, comprising the following steps:

[0045] ①Smelting: Melting the ingredients at a preset temperature, the ingredients are as follows:

[0046] Sn: 7%;

[0047] Rare earth additives: 1.0%;

[0048] The rest is Ag;

[0049] Above-mentioned each content is mass percentage content;

[0050] The ingredients are melted at 1400°C;

[0051] During the smelting process, heat the furnace temperature to 1400°C, first add Ag, after it melts, then add Sn and rare earth, and keep stirring throughout the smelting process to make the atoms fully diffuse to form a solid solution and alloy; In this embodiment, by adding an appropriate amount of rare earth, it can be better distributed in the silver matrix, and the maximum drop of the starting temperature and the ending temperature of the internal oxidation of...

Embodiment 2-6

[0061] (embodiment 2-6, the manufacture method of silver tin oxide contact alloy material)

[0062] Embodiments 2-6 are basically the same as Embodiment 1, except that the specific process parameters in the relevant steps in each embodiment are different from those in Embodiment 1, see Table 1 for details.

[0063] Table 1

[0064]

Embodiment 7-12

[0065] (Embodiment 7-12, silver tin oxide contact alloy)

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Abstract

The invention discloses a manufacturing method of a silver tin oxide contact alloy material and a manufactured alloy thereof. The method comprises the following steps: 1.smelting: smelting the ingredients at the preset temperature and continuing to stir in the process of smelting; 2. casting the ingredients into a round spindle and lathing the surface of the round spindle; 3. carrying out hot rolling and then cold rolling on the round spindle and then rolling the round spindle into sheets; 4. carrying out oxygenation processing on the sheets in an internal oxidation furnace; 5. crushing the sheets and then carrying out high energy crushing processing on the crushed sheets; 6. carrying out hot extrusion to obtain a wire stock blank; 7. carrying out drawing processing and annealing treatment; and 8. taking the obtained material as the finished product. The alloy comprises the following components in percentage by weight: 7%-9% of Sn, 1.0%-3.0% of rare earth additive and the balance of Ag. The invention has the advantages of more simplified technique, easy implementation and excellent product performance.

Description

technical field [0001] The invention belongs to the technical field of alloy manufacture, and in particular relates to a method for manufacturing a silver tin oxide contact alloy material. Background technique [0002] With the development of information electronics, automation, automobile and aerospace technology, there is an increasing demand for miniaturized, high-power and high-reliability electrical appliances, switches and other electromechanical components, and the requirements for their performance indicators are getting higher and higher. Silver tin oxide rare earth contact material is a new type of non-toxic electrical contact material that has developed rapidly in recent years. It has the advantages of good thermal stability, arc erosion resistance and strong welding resistance. It is currently used in contactors, relays, etc. It is an ideal material to replace toxic silver cadmium oxide in switches. In 2003, the China Electrical Appliances Association made a req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/0237C22C32/00C22C5/06C22C1/02C22F1/14
Inventor 陈建新
Owner 浙江乐银合金有限公司
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