Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Corrosion-resistance Au-Li-Os gold lithium alloy for electric contact material

An electrical contact material and corrosion-resistant technology, applied in the field of alloys, can solve problems such as the inability to meet the requirements of combustion resistance, and achieve the effects of solving the problem of high hot cracking tendency, improving lithium yield, and low liquid-solid solidification temperature range.

Inactive Publication Date: 2018-04-17
GUANGZHOU YUZHI TECH CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a structural material, it is far from enough to meet the requirements of only having combustion resistance during smelting. More importantly, the final gold-lithium alloy product must also have satisfactory mechanical strength, at least reaching the level commonly used. Mechanical properties of gold-lithium alloys

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

[0017] A corrosion-resistant Au-Li-Os gold-lithium alloy for electrical contact materials with 1120-degree melting. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.5wt.%, Os: 0.2wt.%, Ca: 0.9wt.%, Sb: 0.3wt.%, Sn: 1.2wt.%, Co: 0.5wt .%, Mo: 0.1wt.%, Pd: 0.2wt.%, Si: 0.1wt.%, B: 0.2wt.%, and the balance is gold. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 1120 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 1120 degrees for 10 minutes and cast into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 8m / min. The ingot was deformed at room temperature with a rolling reduction of 9% per pass. Every 3 passes of rolling requires an intermediate heat treatment to el...

Embodiment 2

[0019]A corrosion-resistant Au-Li-Os gold-lithium alloy for electrical contact materials with 1150-degree melting. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.3wt.%, Os: 0.2wt.%, Ca: 0.8wt.%, Sb: 0.3wt.%, Sn: 1.2wt.%, Co: 0.4wt .%, Mo: 0.1wt.%, Pd: 0.2wt.%, Si: 0.1wt.%, B: 0.3wt.%, the balance is gold. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 1150 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 1150 degrees for 10 minutes and cast into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 10m / min. The ingot was deformed at room temperature with a rolling reduction of 6% in each pass. Every 3 passes of rolling requires an intermediate heat treatment to el...

Embodiment 3

[0021] A corrosion-resistant Au-Li-Os gold-lithium alloy for electrical contact materials with 1180-degree melting. In terms of weight percentage, the chemical composition of the alloy is: Li: 0.3wt.%, Os: 0.2wt.%, Ca: 0.9wt.%, Sb: 0.2wt.%, Sn: 1.2wt.%, Co: 0.4wt .%, Mo: 0.1wt.%, Pd: 0.3wt.%, Si: 0.1wt.%, B: 0.3wt.%, and the balance is gold. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 1180 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 1180 degrees for 10 minutes and cast into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 9m / min. The ingots were deformed at room temperature with a rolling reduction of 10% in each pass. Every 3 passes of rolling requires an intermediate heat treatmen...

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
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a corrosion-resistant Au-Li-Os gold-lithium alloy for electrical contact materials. In terms of weight percentage, the chemical composition of the alloy is: Li:0.2‑0.6wt.%, Os:0.2‑0.3wt.%, Ca:0.5‑1.5wt.%, Sb:0.2‑0.4wt.%, Sn:1.0‑ 1.5wt.%, Co: 0.4‑0.5wt.%, Mo: 0.1‑0.2wt.%, Pd: 0.2‑0.4wt.%, Si: 0.1‑0.2wt.%, B: 0.2‑0.4wt.%, The balance is gold. Compared with traditional electrical contact gold alloys, the material has excellent mechanical properties, high electrical conductivity and high corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a gold-lithium alloy. Background technique [0002] Electrical contact materials are one of the important materials in the process of current transmission and conversion. Electrical contact materials are the key materials for the preparation of electric power, electrical circuit on-off control and load current electrical appliances (such as switches, relays, starters, instruments, etc.). In the electrical and electronic fields, electrical contact materials are mainly used as electrical contacts, conductive brushes, collector rings, commutator segments, rectifier segments and connectors, etc., and are important functional components in the electrical on-off link. Motors, electrical switches, relays, connectors, etc. using electrical contact elements are widely used in information engineering, household electronic appliances, automotive engineering and other fields as basic compone...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/02C22C1/02C22F1/14H01H1/02
CPCC22C5/02C22C1/02C22F1/14H01H1/02
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com