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Platinum alloy containing Sc for highly-conductive highly-thermal-conductive electric contact material

An electrical contact material, high thermal conductivity technology, applied in the field of platinum alloy, to achieve good anti-fusion welding, low liquid-solid solidification temperature range, and arc temperature reduction effect

Inactive Publication Date: 2018-02-02
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 with 1800 degree smelting, containing Sc, high electrical conductivity and high thermal conductivity electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Sc: 1.6wt.%, Y: 1.9wt.%, Mo: 1.0wt.%, Sn: 0.4wt.%, Si: 1.8wt.%, Pd: 0.6wt .%, Ho: 0.4wt.%, Pr: 0.3wt.%, B: 0.4wt.%, 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 10%; every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 620 degrees, 3.8 hours; after...

Embodiment 2

[0018] A platinum alloy with 1820 degree smelting, containing Sc, high electrical conductivity and high thermal conductivity electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Sc: 1.9wt.%, Y: 1.7wt.%, Mo: 0.9wt.%, Sn: 0.4wt.%, Si: 1.5wt.%, Pd: 0.6wt .%, Ho: 0.4wt.%, Pr: 0.3wt.%, B: 0.4wt.%, 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 11%; every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 620 degrees, 3.8 hours; after...

Embodiment 3

[0020]A platinum alloy with 1840 degree smelting, containing Sc, high electrical conductivity and high thermal conductivity electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Sc: 1.8wt.%, Y: 1.9wt.%, Mo: 0.9wt.%, Sn: 0.4wt.%, Si: 1.8wt.%, Pd: 0.7wt .%, Ho: 0.4wt.%, Pr: 0.3wt.%, B: 0.4wt.%, 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 ingot is deformed at room temperature, and the amount of rolling in each pass is 10%; every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the process is: 620 degrees, 3.8 hours; after ...

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Abstract

The invention discloses a platinum alloy containing Sc and used as a high-conductivity and high-heat-conduction electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Sc:1.5‑2.0wt.%, Y:1.5‑2.0wt.%, Mo:0.8‑1.2wt.%, Sn:0.2‑0.6wt.%, Si:1.2‑ 2.6wt.%, Pd: 0.5‑1.0wt.%, Ho: 0.2‑0.6wt.%, Pr: 0.2‑0.5wt.%, B: 0.2‑0.5wt.%, and the balance is platinum. Compared with traditional electrical contact platinum alloys, this material has excellent mechanical properties, thermal conductivity 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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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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