Chromium carbide copper-based contact material for low-voltage electric appliance, and processing method for chromium carbide copper-based contact material

A contact material, chromium carbide copper technology, applied in contacts, circuits, electric switches, etc., can solve problems such as expensive, easy to wear and oxidize, and unstable contact resistance

Inactive Publication Date: 2016-09-28
仙居县南大合金科技有限公司
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of the national economy, the number of low-voltage electrical appliances is increasing, and the consumption of silver is increasing year by year. The shortage and high price of silver resources in my country and the world restrict the development of silver-based low-voltage electrical contact materials.
Therefore, copper-based contact materials with copper as the main component began to be applied to the lo

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: chromium carbide copper-based contact material for low-voltage electrical appliances, its composition is by weight percentage: 5% chromium carbide, 0.5% aluminum, 0.5% chromium, 0.5% zirconium, 1% rhenium oxide, 1% lanthanum oxide, and the rest for copper. The contact material processing method is as follows: Fully mix the powders of chromium carbide, aluminum, chromium, zirconium, rhenium oxide, lanthanum oxide and copper in the above weight percentages, and grind to obtain an ultrafine mixed powder below 200 mesh; Put the superfine mixed powder obtained above into an airtight container and press it with a cold isostatic press to form a columnar billet required for processing. The working pressure of the cold isostatic press is 250 MPa, and the pressure is maintained for 3 minutes; The billets are sintered under protective gas at a sintering temperature of 1100°C for 2 hours; The sintered blank is formed by extrusion or forging, and then rolled to f...

Embodiment 2

[0012] Embodiment 2: A chromium carbide copper-based contact material for low-voltage electrical appliances, its composition is by weight percentage: 2% chromium carbide, 1% nickel, 2% samarium oxide, and the balance is copper. The contact material processing method is as follows: Fully mixing the powders of chromium carbide, nickel, samarium oxide and copper in the above percentage by weight, and grinding to obtain an ultrafine mixed powder below 200 mesh; Put the superfine mixed powder obtained above into a closed container and press it into the columnar billet required for processing with a cold isostatic press. The working pressure of the cold isostatic press is 200MPa, and the pressure is maintained for 3 minutes; The billet is sintered under protective gas, the sintering temperature is 1000°C, and the time is 2.5 hours; The sintered blank is formed by extrusion or forging, and then rolled to form the contact material.

[0013] The chromium carbide copper-based cont...

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
Login to view more

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Resistivityaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a chromium carbide copper-based contact material for low-voltage electrical appliances, which is characterized in that the composition of the contact material is: 0.1%-10% chromium carbide, 0.1%-5% alloy metal, 0.1% ~10% rare earth oxides, and the balance is copper; the alloy metal is one or two or a combination of two or more of aluminum, lanthanum, cerium, yttrium, nickel, chromium, zirconium, niobium, vanadium, and tungsten , the rare earth oxide is one or a combination of two or more of rhenium oxide, lanthanum oxide, cerium oxide, yttrium oxide, yttrium oxysulfide, samarium oxide, and zirconia. The low-voltage electrical contact made of the above materials not only has excellent welding resistance, wear resistance and oxidation resistance, but also can be used safely for a long time. In addition, the present invention also provides a chromium carbide copper-based contact for low-voltage electrical appliances The processing method of the material.

Description

technical field [0001] The invention relates to a low-voltage electric appliance contact material and a processing method thereof. Background technique [0002] At present, the contact materials of low-voltage electrical contacts on the market are mainly divided into two types: silver-based electrical contact materials with silver as the main component and copper-based electrical contact materials with copper as the main component. Silver-based electrical contact materials with silver as the main component have good electrical and thermal conductivity, low contact resistance, and strong oxidation resistance, such as silver tin oxide, silver zinc oxide, silver nickel, silver rare earth and other contacts Material. However, with the development of the national economy, the number of low-voltage electrical appliances is increasing, and the consumption of silver is increasing year by year. The shortage and high price of silver resources in my country and the world restrict the ...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01H1/025H01H11/04C22C9/00C22C32/00B22F1/00
CPCH01H1/025B22F1/0003B22F2998/10C22C9/00C22C32/0005H01H11/048
Inventor 吴康楼
Owner 仙居县南大合金科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap