A kind of preparation method of silver oxide/silver/copper three-layer composite strip

A silver oxide, composite strip technology, applied in contact materials, electrical components, electrical switches, etc., can solve the problems of difficult to achieve atmosphere protection, lack of versatility, difficult to achieve, etc., to solve the problem of reducing atmosphere Protects difficult problems, avoids oxide-poor areas, and solves the effect of rapid heating
CN105609333BActive Publication Date: 2018-01-23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
Patents(China)
Current Assignee / Owner
桂林金格电工电子材料科技有限公司
Publication Date
2018-01-23

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Abstract

The invention discloses a preparation method of a silver oxide / silver / copper three-layer composite tape. The method comprises the following steps: cleaning a silver oxide / silver composite tape and a copper tape, feeding the silver oxide / silver composite tape and the copper tape to a high-frequency induction furnace for heating, and controlling the heating temperature in the high-frequency induction furnace to be 500-750 DEG C; feeding the silver oxide / silver composite tape and the copper tape to a tube-type resistance furnace for heating, wherein the length of a heating zone in the tube-type resistance furnace is 0.8-1.5m; controlling the heating temperature in the tube-type resistance furnace to be 600-850 DEG C; feeing the silver oxide / silver composite tape and the copper tape to a roller for hot-rolling compounding to obtain the silver oxide / silver / copper three-layer composite tape; and carrying out cold rolling and finishing rolling on the obtained three-layer composite tape according to a conventional process, wherein the heating process in the tube-type resistance furnace and the process from the heating process to the process of feeding the tapes to the roller are carried out in a reducing protective atmosphere. The technology disclosed by the invention can quickly warm, is stable and controllable in temperature, can solve the problem of reducing atmosphere protection during heating, and effectively avoids a poor oxide zone.
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Description

technical field

[0001] The invention relates to a silver oxide / silver / copper layered electrical contact material, in particular to a method for preparing a silver oxide / silver / copper three-layer composite strip. Background technique

[0002] In the application of contact materials, the contact blades are first welded on the contact pieces, and finally they can be assembled into electrical appliances for use. In order to obtain a better welding effect, one side of the contact piece needs to be pre-composited with a thinner silver layer (accounting for more than 20% of the total thickness of the contact piece), and this side will be used as a welding layer for welding with copper-based contacts. In the manufacture of electrical contacts, silver oxide materials are not conducive to hot rolling compounding, cold rolling, split shearing, stamping and other mechanical processing due to their high brittleness. Therefore, many manufacturers process them through internal oxidation of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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