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High-conductive high-strength platinum alloy containing Ti and used for electrical contact material

An electrical contact material, high-strength technology, applied in the field of platinum alloys, to achieve the effect of reducing arc temperature, solving hot cracking tendency and less material transfer

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 high-conductivity and high-strength electrical contact materials with 1800-degree smelting of titanium. In terms of weight percentage, the chemical composition of the alloy is: Ti:2.6wt.%, Sn:2.3wt.%, Sc:0.3wt.%, Ru:0.4wt.%, Si:1.2wt.%, Cu:0.4wt .%, Re:0.4wt.%, Er:0.2wt.%, B:0.6wt.%, 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 require an intermediate heat treatment to eliminate work hardening, the process is: 620 degrees, 3.0 hours; after rolling The final heat treatm...

Embodiment 2

[0018] A platinum alloy for high-conductivity and high-strength electrical contact materials with 1820-degree smelting of titanium. In terms of weight percentage, the chemical composition of the alloy is: Ti:2.8wt.%, Sn:2.6wt.%, Sc:0.3wt.%, Ru:0.4wt.%, Si:1.2wt.%, Cu:0.4wt .%, Re:0.5wt.%, Er:0.3wt.%, B:0.6wt.%, 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 requires an intermediate heat treatment to eliminate work hardening, the process is: 620 degrees, 3.0 hours; after rolling The final heat treat...

Embodiment 3

[0020] A platinum alloy for high-conductivity and high-strength electrical contact materials with 1840-degree smelting of titanium. In terms of weight percentage, the chemical composition of the alloy is: Ti:2.9wt.%, Sn:1.6wt.%, Sc:0.2wt.%, Ru:0.3wt.%, Si:1.4wt.%, Cu:0.4wt .%, Re:0.5wt.%, Er:0.3wt.%, B:0.6wt.%, 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 rolling in each pass is 13%; every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 620 degrees, 3.0 hours; after rolling The final heat ...

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Abstract

The invention discloses a high-conductive high-strength platinum alloy containing Ti and used for an electrical contact material. The alloy comprises, by weight, 2.5-3.0% of Ti, 1.5-3.0% of Sn, 0.2-0.4% of Sc, 0.2-0.5% of Ru, 1.0-1.5% of Si, 0.4-0.5% of Cu, 0.2-0.6% of Re, 0.2-0.4% of Er, 0.5-0.9% of B, and the balance platinum. Compared with a traditional electric contact platinum alloy, the material has excellent mechanical and conductive properties.

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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