Production method of electric contact point

A manufacturing method and technology of electrical contacts, applied in circuits, electrical switches, electrical components, etc., can solve the problems of complex process, high manufacturing cost, and many production equipment, and achieve low investment, low manufacturing equipment, and low manufacturing costs. Effect

Inactive Publication Date: 2008-12-10
LIUZHOU CITY SEMICON MATERIAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The manufacturing method of the electric contact element provided by the present invention can solve the problems of many production equipments, complicated process and high manufacturing cost in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: The manufacturing model is 3*0.86+1.5*1.3R8, the thickness of the composite layer of silver-tin oxide is 50 microns, the rated current is 10A, the rated voltage is 250V, and the number of on-off times is greater than or equal to 40,000 electrical contacts:

[0012] 1. Forming: Use red copper wire as the conductive base material, and carry out cold heading processing according to the specifications of the electrical contact design, and make electrical contact blanks with "T" shapes, that is, rivets.

[0013] 2. Polishing: mechanically polish the end face of the upsetting head of the electrical contact body that needs to be in contact with electricity during work.

[0014] 3. Mounting and hanging: Put the polished electrical contact body on the electroplating rack, each electroplating rack is equipped with a porous plate with multiple holes, and the rod of each electrical contact body is inserted in this Through the hole of the porous plate, and through the thr...

Embodiment 2

[0023] Embodiment 2: The manufacturing model is 3.5*1.2+2*1.5RO, the thickness of the composite layer of silver tin oxide is 20 microns, the rated current is 10A, the rated voltage is 250V, and the method of making electrical contacts is greater than or equal to 10,000 times Methods:

[0024] 1. Forming: Use red copper wire as the conductive base material, and carry out cold heading processing according to the specifications of the electrical contact design, and make electrical contact blanks with "T" shapes, that is, rivets.

[0025] 2. Polishing: mechanically polish the end face of the upsetting head of the electrical contact body that needs to be in contact with electricity during work.

[0026] 3. Mounting and hanging: Put the polished electrical contact body on the electroplating rack, each electroplating rack is equipped with a porous plate with multiple holes, and the rod of each electrical contact body is inserted in this Through the hole of the porous plate, and thro...

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Abstract

The invention discloses a manufacturing method of an electric contact; the electric contact manufactured by the method is made by electroplating the contact material on the outer surface needing to contact power transmission of the shaped conductive substrate; the outermost clad layer of the contact material is added with putty powder in the plating solutions of silver plating to lead the putty powder to deposit the obtained silver tin oxide layer together with the metallic silver. The invention relates to the technical field of manufacturing the electric contact element; the electric contact manufactured in the invention is able to solve the problem of the much production equipment, complicated technique and high producing cost in the existed technology.

Description

technical field [0001] The invention relates to the technical field of manufacturing electrical contact elements in switch devices, in particular to a manufacturing method of an electrical contact using silver-tin oxide as an electrical contact material. Background technique [0002] The electrical contact referred to in the present invention refers to an element used to be mounted on a conductive part in a switch device and undertake contact transmission. Some electrical contacts are made of conductive materials with excellent conductivity and suitable hardness. Some high-current electrical contacts are also made of conductive substrates and electrical contact materials at the parts of the conductive substrates that need to contact and transmit electricity. Existing The electrical contact material of the electrical contact elements of the low-voltage switch is mostly still silver-cadmium oxide. In recent years, with the requirements of extended service life, miniaturizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H11/04C25D5/12C25D3/46
Inventor 刘建一刘建平
Owner LIUZHOU CITY SEMICON MATERIAL FACTORY
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