High conductivity corrosion resistance platinum alloy containing Ru and used for electrical contact material

An electric contact material and corrosion-resistant technology, which is applied in the field of platinum alloys to achieve the effect of improving the effect of electric corrosion, solving the problem of high tendency of thermal cracking and reducing the arc temperature

Inactive Publication Date: 2018-04-06
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as an electrical contact material, only excellent electrical conductivity is far from meeting the requirements of the rapidly developing power industry. More importantly, the final platinum alloy product must also have satisfactory mechanical strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A platinum alloy for 1800-degree smelting, Ru-containing, high-conductivity and corrosion-resistant electrical contact materials. In terms of weight percentage, the chemical composition of the alloy is: Ru: 2.6wt.%, Ti: 1.4wt.%, Ge: 0.6wt.%, Mn: 0.3wt.%, Al: 0.7wt.%, Pd: 0.6wt .%, W: 0.3wt.%, Pr: 0.6wt.%, B: 0.3wt.%, the balance is platinum. The preparation method of the alloy: add the above-mentioned raw materials into an induction furnace under an argon atmosphere, and use a silicon carbide crucible. Induction heating to 1800 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is poured into a water glass mold at 1800 degrees for 10 minutes for casting. The ingot is deformed at room temperature, and the amount of rolling in each pass is 12%; every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 640 degrees, 3.0 hours; after rolling The fin...

Embodiment 2

[0018] A platinum alloy for 1820-degree smelting, Ru-containing, high-conductivity and corrosion-resistant electrical contact materials. In terms of weight percentage, the chemical composition of the alloy is: Ru: 3.2wt.%, Ti: 1.8wt.%, Ge: 0.6wt.%, Mn: 0.3wt.%, Al: 0.6wt.%, Pd: 0.8wt .%, W: 0.3wt.%, Pr: 0.5wt.%, B: 0.3wt.%, the balance is platinum. The preparation method of the alloy: add the above-mentioned raw materials into an induction furnace under an argon atmosphere, and use a silicon carbide crucible. Induction heating to 1820 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is poured into a water glass mold at 1820 degrees for 10 minutes for casting. The ingot is deformed at room temperature, and the amount of rolling in each pass is 14%; every 3 passes of rolling require an intermediate heat treatment to eliminate work hardening, the process is: 640 degrees, 3.0 hours; after rolling The fina...

Embodiment 3

[0020]The invention relates to a platinum alloy used as a high-conductivity corrosion-resistant electrical contact material with 1840-degree molten Ru content. In terms of weight percentage, the chemical composition of the alloy is: Ru: 3.5wt.%, Ti: 2.3wt.%, Ge: 0.6wt.%, Mn: 0.4wt.%, Al: 0.6wt.%, Pd: 0.8wt .%, W: 0.4wt.%, Pr: 0.5wt.%, B: 0.3wt.%, the balance is platinum. The preparation method of the alloy: add the above-mentioned raw materials into an induction furnace under an argon atmosphere, and use a silicon carbide crucible. Induction heating to 1840 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is poured into a water glass mold at 1840 degrees for 10 minutes for casting. The cast ingot is deformed at room temperature, and the amount of reduction in each pass is 13%; every 3 passes of rolling require an intermediate heat treatment to eliminate work hardening, the process is: 640 degrees, 3.0 ...

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Abstract

The invention discloses a platinum alloy containing Ru and used as a highly conductive and corrosion-resistant electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Ru:2.5‑4.0wt.%, Ti:1.0‑3.0wt.%, Ge:0.4‑0.8wt.%, Mn:0.2‑0.5wt.%, Al:0.5‑ 0.8wt.%, Pd: 0.5‑1.0wt.%, W: 0.2‑0.5wt.%, Pr: 0.4‑0.8wt.%, B: 0.2‑0.5wt.%, and the balance is platinum. Compared with traditional electrical contact platinum alloys, this material has excellent corrosion resistance and electrical conductivity.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a platinum alloy. Background technique [0002] Electrical contact materials are one of the important materials in the process of current transmission and conversion, and are also key materials for the preparation of electric power, electrical circuit on-off control, and load current electrical appliances (such as switches, relays, starters, and instruments). Electrical contact materials are divided into: electrical contact materials, brush materials, winding materials, conductive rings, commutator or rectifier materials, and connector materials. The performance of these electrical contact elements directly affects the reliability, stability, precision and service life of electrical conversion devices and the entire instrumentation. Therefore, the development of electronic instruments and meters towards high precision and miniaturization puts forward higher requirements for the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/04C22C1/02C22F1/14C22F1/02H01B1/02
CPCC22C5/04C22C1/02C22F1/02C22F1/14H01B1/02
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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