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Magnesium-containing high-conductivity and high-damping-capacity palladium-magnesium alloy for electric contact material

An electric contact material and high conductivity technology, which is applied in the field of alloys, can solve the problems that the anti-combustion performance cannot meet the requirements, etc., and achieve the effect of solving the problem of high thermal cracking tendency, reducing the amount of use, and increasing the yield of magnesium

Inactive Publication Date: 2018-04-10
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a structural material, it is far from being able to meet the requirements only with the anti-combustion performance during smelting. More importantly, the final palladium-magnesium alloy product must also have satisfactory mechanical strength, at least reaching the level commonly used Mechanical properties and electrical conductivity levels of palladium-magnesium alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A Pd-Mg-Zn palladium-magnesium alloy for 1600-degree smelting magnesium-containing high-conductivity and high-damping electrical contact materials. In terms of weight percentage, the chemical composition of the alloy is: Mg:6.2wt.%, Zn:2.5wt.%, Ru:0.3wt.%, Os:0.2wt.%, Ge:1.4wt.%, Nb:0.4wt .%, Y: 0.3wt.%, Sc: 0.2wt.%, B: 0.6wt.%, and the balance is palladium. 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 1600 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 1600 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 14m / min. The ingot was subjected to deformation treatment at room temperature, and the rolling reduction in each pass was 13%. Every 3 pass...

Embodiment 2

[0019]A Pd-Mg-Zn palladium-magnesium alloy for 1620-degree smelting magnesium-containing high-conductivity and high-damping electrical contact materials. In terms of weight percentage, the chemical composition of the alloy is: Mg:6.5wt.%, Zn:2.3wt.%, Ru:0.4wt.%, Os:0.2wt.%, Ge:1.4wt.%, Nb:0.4wt .%, Y: 0.3wt.%, Sc: 0.2wt.%, B: 0.6wt.%, and the balance is palladium. 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 1620 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 1620 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 15m / min. The ingot was subjected to deformation treatment at room temperature, and the rolling reduction in each pass was 12%. Every 3 passe...

Embodiment 3

[0021] A Pd-Mg-Zn palladium-magnesium alloy for 1650-degree smelting magnesium-containing high-conductivity and high-damping electrical contact materials. In terms of weight percentage, the chemical composition of the alloy is: Mg:5.6wt.%, Zn:2.4wt.%, Ru:0.3wt.%, Os:0.2wt.%, Ge:1.2wt.%, Nb:0.4wt .%, Y: 0.3wt.%, Sc: 0.2wt.%, B: 0.5wt.%, and the balance is palladium. 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 1650 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 1650°C 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 15m / min. The ingot was subjected to deformation treatment at room temperature, and the rolling reduction in each pass was 13%. Every 3 passes of ...

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PUM

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Abstract

The invention discloses a palladium-magnesium alloy for a magnesium-containing high-conductivity and high-damping electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Mg: 4.5‑7.0wt.%, Zn: 1.5‑3.0wt.%, Ru: 0.2‑0.4wt.%, Os: 0.2‑0.5wt.%, Ge: 1.0‑ 1.5wt.%, Nb: 0.4‑0.5wt.%, Y: 0.2‑0.6wt.%, Sc: 0.2‑0.4wt.%, B: 0.5‑0.9wt.%, and the balance is palladium. Compared with the traditional electrical contact palladium alloy, the material has excellent mechanical properties, high electrical conductivity and high damping performance.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a palladium-magnesium 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 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.). Mainly used for breakable current-carrying connection contacts between two conductors. 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 performance of electrical contact elements: excellent electrical conduct...

Claims

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Application Information

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IPC IPC(8): C22C5/04C22C1/02C22F1/14C22F1/02H01H1/023
CPCC22C5/04C22C1/02C22F1/02C22F1/14H01H1/023
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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