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A kind of preparation method of electric contact material

A technology of electrical contact material and preparation steps, applied in coating and other directions, can solve the problems of short life of electrical contacts, waste of metal resources, poor arc extinguishing ability, etc., and achieve good arc extinguishing ability, low electrical wear, and product cost. low effect

Active Publication Date: 2019-01-18
佛山市惠丰合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the problem that the current electric contact materials have low strength, large electrical wear, and poor arc extinguishing ability, resulting in short service life of electric contacts, and the materials are all made of metal, which has high cost and wastes a lot of metal resources. Disadvantages, it provides a method of mixing artificial zeolite, quartz sand and binder, vibrating on a shaking table, ultrasonic dispersion, heat preservation treatment to obtain a jelly, and then taking styrene-acrylic emulsion, butadiene resin, etc. to obtain artificial stone imitation Coating, evenly coated on the surface of the jelly, after curing, soaked in benzaldehyde, dried and pressed into a green body, soaked in silver nitrate solution, in a high-temperature furnace, passed through ammonia gas, at a certain temperature Method for preparing electric contact material under heat preservation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, weigh 2kg of artificial zeolite and 2kg of quartz sand, put them into a pulverizer for 50 minutes, and place them in a mill for 1 hour, pass through an 80-mesh sieve to obtain a mixed powder, and take 40 parts by weight. The prepared mixed powder, 3 parts of polyvinyl alcohol and 57 parts of water were mixed and stirred for 30 minutes; then after being stirred and mixed, the mixture was placed in a shaker for 1 hour of shaking treatment, and placed in a 300W ultrasonic disperser for 1 hour of ultrasonic dispersion treatment. After the ultrasonic dispersion treatment, put the mixture in an incubator with a temperature of 35°C and keep it warm for 2 hours to obtain a jelly-like substance for later use; then weigh 48 parts of styrene-acrylic emulsion, 2 parts of carboxymethyl fiber Sodium sodium, 3 parts of butadiene resin, 4 parts of amino resin, 3 parts of epoxy silane and 40 parts of deionized water, at a temperature of 70 ° C and a rotation speed of 300 r / min, st...

example 2

[0020] First, weigh 3kg of artificial zeolite and 3kg of quartz sand, put them into a pulverizer for crushing for 55 minutes, and place them in a mill for grinding for 2 hours, pass through a 90-mesh sieve to obtain a mixed powder, and take 45 parts by weight The prepared mixed powder, 2 parts of polyvinyl alcohol and 53 parts of water were mixed and stirred for 35 minutes; then, after being stirred and mixed, the mixture was placed in a shaker for 2 hours, and placed in a 400W ultrasonic disperser for ultrasonic dispersion treatment for 2 hours. After ultrasonic dispersion treatment, put the mixture in an incubator with a temperature of 40°C and keep it warm for 3 hours to obtain a jelly, which is set aside; then weigh 50 parts of styrene-acrylic emulsion, 2 parts of carboxymethyl fiber Sodium plain, 4 parts of butadiene resin, 5 parts of amino resin, 4 parts of epoxy silane and 35 parts of deionized water, at a temperature of 75 ° C and a rotation speed of 400 r / min, stir to ...

example 3

[0023] First, weigh 3kg of artificial zeolite and 3kg of quartz sand, put them in a pulverizer for 60 minutes, and put them in a mill for 2 hours, pass through a 90-mesh sieve to obtain a mixed powder, and take 50 parts by weight The prepared mixed powder, 1 part of polyvinyl alcohol and 49 parts of water were mixed and stirred for 40 minutes; then after being stirred and mixed, the mixture was placed in a shaker for 2 hours, and placed in a 500W ultrasonic disperser for 2 hours of ultrasonic dispersion treatment. After the ultrasonic dispersion treatment, put the mixture in an incubator with a temperature of 45°C and keep it warm for 3 hours to obtain a jelly-like substance for later use; then weigh 51 parts of styrene-acrylic emulsion, 3 parts of carboxymethyl fiber Sodium plain, 4 parts of butadiene resin, 5 parts of amino resin, 5 parts of epoxy silane and 32 parts of deionized water are stirred at a temperature of 80 °C and a rotation speed of 500 r / min to make them fully ...

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Abstract

The invention discloses a preparation method of electrical contact material, and belongs to the technical field of electrical contact material. The method is as below: mixing artificial zeolite, quartz sand and a binder, oscillating by a shaking table, conducting ultrasonic dispersion and conducting heat treatment to prepare a gelatinoid; preparing a styrene acrylic emulsion and butadiene resin into an artificial stone imitating coating, coating the gelatinoid surface, curing, soaking in benzaldehyde, drying, pressing into a blank; soaking the blank in a silver nitrate solution; introducing NH3 in a high temperature furnace, and insulating at a certain temperature to prepare the electrical contact material. The invention has the advantages that the preparation steps are simple, and that the product cost is 25.3% lower than other products, so as to effectively solve the problem of waste metal resources; and the material has high strength, small electrical wear, good arcing ability and, long service life of the electrical contact.

Description

technical field [0001] The invention relates to a method for preparing an electric contact material, and belongs to the technical field of electric contact material preparation. Background technique [0002] Contact materials, electrical contact materials used for switches, relays, electrical connections and electrical connector components, also known as electrical contact materials. It has good electrical wear resistance, welding resistance, electrical and thermal conductivity, and small contact resistance. Since silver and cadmium oxide are dispersed, it can increase the hardness of the material and improve the mechanical wear resistance. It has strong anti-welding ability when passing short-circuit current, and the manufacturing process of electrical contacts has a great influence on its performance. Copper-based contact materials and silver-based contact materials are generally used. Copper-based contact materials, copper-tungsten-based contact materials have the advan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/16C04B35/14C04B41/84C09D125/14C09D101/28C09D147/00C09D161/20C09D7/62C09D7/63
CPCC04B35/14C04B35/16C04B41/009C04B41/4922C04B41/84C04B2235/602C04B2235/658C04B2235/6586C08L2205/035C09D7/63C09D125/14C04B41/4803C04B41/4861C04B41/488C04B41/4578C08L1/286C08L47/00C08L61/20C08K5/5435
Inventor 叶仙龙盛艳花
Owner 佛山市惠丰合金有限公司
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