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Ag-MeC electric contact and integrated assembly manufacturing method

A manufacturing method and technology of electrical contacts, applied in the direction of improving process efficiency, improving energy efficiency, additive processing, etc., can solve problems such as unreachable production, achieve the effects of improving electrical conductivity, small size, and reducing production costs

Active Publication Date: 2015-09-09
SHANGHAI HIWAVE COMPOSITE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The preparation technologies of the above various electrical contacts and their integrated components save precious metal raw materials to a certain extent, simplify the preparation process of electrical contacts, reduce raw material costs and production costs, and also improve the electrical efficiency of integrated components. The quality of the joint interface between the contact and the contact bridge, but it is not yet able to directly produce from raw materials to finished products, and it still needs a multi-step process to complete

Method used

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  • Ag-MeC electric contact and integrated assembly manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Taking the printing of Ag60WC40 electrical contacts and their integrated components as an example

[0025] In the first step, silver and tungsten carbide powders are prepared respectively, the tungsten carbide powder is pretreated by electroless silver plating, and the silver-tungsten carbide mass ratio is 60:40 to make silver-tungsten carbide composite powder.

[0026] In the second step, the silver-tungsten carbide composite powder is made of a polymer with a particle size of 1μm coated silver-tungsten carbide composite powder. Load the coated silver-tungsten carbide composite powder into the powder cylinder of the 3D printer.

[0027] The third step is to establish a three-dimensional model of the Ag60WC40 electrical contact and its integrated components, and use selective laser sintering technology to 3D print the Ag60WC40 electrical contact and its integrated components. The laser power is 13W and the scanning speed is 1800mm / s , the scanning distance is 0.1 mm, ...

Embodiment 2

[0029] Taking the printing of Ag50WC50 electrical contacts and their integrated components as an example

[0030] In the first step, silver and tungsten carbide powders are prepared respectively, the tungsten carbide powder is pretreated by electroless silver plating, and the silver-tungsten carbide mass ratio is 50:50 to make silver-tungsten carbide composite powder.

[0031] In the second step, the silver-tungsten carbide composite powder is made into a film-coated silver-tungsten carbide composite powder with a particle size of 10 μm by using a high molecular polymer as a binder. Load the coated silver-tungsten carbide composite powder into the powder cylinder of the 3D printer.

[0032] The third step is to establish a three-dimensional model of the Ag50WC50 electrical contact and its integrated components, and use selective laser sintering technology to 3D print the Ag50WC50 electrical contact and its integrated components. The laser power is 14W and the scanning speed is...

Embodiment 3

[0035]Taking the printing of Ag35WC65 electrical contacts and their integrated components as an example

[0036] In the first step, silver and tungsten carbide powders are prepared respectively, and the tungsten carbide powder is pretreated with composite electroplating silver, and the silver-tungsten carbide mass ratio is 35:65 to make silver-tungsten carbide composite powder.

[0037] In the second step, the silver-tungsten carbide composite powder is made into a film-coated silver-tungsten carbide composite powder with a particle size of 50 μm by using a high molecular polymer as a binder. Load the coated silver-tungsten carbide composite powder into the powder cylinder of the 3D printer.

[0038] The third step is to establish a three-dimensional model of the Ag35WC65 electrical contact and its integrated components, and use selective laser sintering technology to 3D print the Ag35WC65 electrical contact and its integrated components. The laser power is 15W and the scannin...

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Abstract

The invention relates to an Ag-MeC electric contact and an integrated assembly manufacturing method. First, overlaying film silver-carbide composite powder is prepared and added to a 3D printer powder cylinder; then 3D models of a silver-carbide electric contact and an integrated assembly of the same are built via a computer; and at last 3D printing is finished for the silver-carbide electric contact and the integrated assembly of the same. Quick and direct formation of the silver-carbide electric contact and the integrated assembly of the same from raw material to completed products can be achieved via 3D printing, so raw material and production cost can be reduced; storage and delivery time can be avoided; and a new method is provided for preparation of Ag-MeC electric contact and integrated assembly.

Description

technical field [0001] The invention relates to a molding method of an electrical contact and its integrated components, in particular to a 3D printing molding method of an Ag-MeC electrical contact and its integrated components. Background technique [0002] Electric contacts and their integrated components are basic components for motors, electrical appliances, instruments and meters, electronics and other industries. Many, complete specifications, high performance, its quality directly affects the performance of low-voltage electrical appliances. Manufacture of high-quality electrical contacts and their integrated components results in significant savings in energy and raw materials. Therefore, the variety, quality, and technological level of electrical contacts and their integrated components have become one of the symbols of the performance level of industrial products such as motors and electrical appliances. However, the preparation of high-quality, various, and com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y80/00
CPCY02P10/25
Inventor 陈乐生刘伟利毛琳王鹏鹏裘揆王蕾
Owner SHANGHAI HIWAVE COMPOSITE MATERIALS CO LTD
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