A copper-based alloy powder material and its preparation method and application, cladding layer and its preparation method

A technology of powder materials and copper-based alloys, applied in metal material coating technology, metal processing equipment, coatings, etc., can solve problems such as poor corrosion resistance, achieve high corrosion resistance, achieve protection, and good electrical conductivity.

Active Publication Date: 2022-04-15
INNER MONGOLIA POWER GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure copper, Cu-W, Cu-Cr based copper-based alloy contacts have poor corrosion resistance

Method used

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  • A copper-based alloy powder material and its preparation method and application, cladding layer and its preparation method
  • A copper-based alloy powder material and its preparation method and application, cladding layer and its preparation method
  • A copper-based alloy powder material and its preparation method and application, cladding layer and its preparation method

Examples

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preparation example Construction

[0049] In the present invention, the preparation method of the copper-based alloy powder material preferably includes the following steps: mixing Cu-Ni-Mo alloy powder, Ta powder and W powder to obtain a copper-based alloy powder material.

[0050] In the present invention, unless otherwise specified, all raw material components are commercially available products well known to those skilled in the art.

[0051] In the present invention, the Cu-Ni-Mo alloy powder is preferably self-produced. In the present invention, the preparation method of the Cu-Ni-Mo alloy powder preferably includes the following steps: after melting Cu, Ni and Mo, atomizing powder is obtained to obtain Cu-Ni-Mo alloy powder. In the present invention, the purity of Cu is preferably ≥99.9%, the purity of Ni is preferably ≥99.9%, and the purity of Mo is preferably ≥99.9%. In the present invention, the smelting of Cu, Ni and Mo preferably includes heating Cu to melting and then adding Ni and Mo to completel...

Embodiment 1

[0074] (1) Preparation of Cu-Ni-Mo alloy powder

[0075] Cu-Ni-Mo alloy powder: Ni 5wt%, Mo 4wt% and balance Cu;

[0076] Put Cu (purity ≥ 99.9%) in a vacuum intermediate frequency induction furnace for heating, and add Ni (purity ≥ 99.9%) and Mo (purity ≥ 99.9%) after Cu is completely melted, and when Cu, Ni and Mo are completely melted, heat at 1100 Heat preservation and smelting at ℃ for 50 minutes to obtain a smelted alloy liquid; place the smelted alloy liquid in the crucible of an atomization rapid condensation device, use the atomization rapid condensation device to carry out atomization and pulverization, and then sieve to obtain a particle size of 140 ~325 mesh Cu-Ni-Mo alloy powder; wherein, the atomization medium for atomization pulverization is nitrogen, and the flow rate of smelting alloy liquid is 0.7kg / min.

[0077] (2) Preparation of copper-based alloy powder materials

[0078] Copper-based alloy powder material: Ta 20wt%, W 2wt% and balance Cu-Ni-Mo alloy po...

Embodiment 2

[0088] The cladding layer was prepared according to the method of Example 1, the difference from Example 1 was that the copper-based alloy powder material contained Ta30wt%.

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Abstract

The invention relates to the technical field of metal materials, in particular to a copper-based alloy powder material, a preparation method and application thereof, a cladding layer and a preparation method thereof. The copper-based alloy powder material provided by the present invention comprises Ta10~50wt%, W2~5wt% and balance Cu-Ni-Mo alloy powder; the chemical elements of the Cu-Ni-Mo alloy powder include Ni3~10wt%, Mo2 ~5wt% and balance Cu. When the copper-based alloy powder material provided by the present invention is used to prepare cladding, since the melting points of the three metals Ta, W, and Mo are much higher than Cu, the solubility of the three metals in Cu is small, and the surplus Ta, W, and Mo are in the solidification process. Precipitation in the middle, forming a dispersedly distributed Ta-W-Mo-rich phase and a continuous distribution of Cu-rich phase, while improving the corrosion resistance and wear resistance of the surface of the base material, it ensures good electrical conductivity of the contact core matrix and reduces cladding. layer surface contact resistance.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a copper-based alloy powder material, a preparation method and application thereof, a cladding layer and a preparation method thereof. Background technique [0002] High-voltage circuit breaker is the most important high-voltage switchgear in the power system, and its operating status will directly affect the safety and stability of the power system. Its role in the power system is mainly reflected in two aspects of control and protection. The control function is to control the power equipment or lines to connect to or exit the power grid according to the operation needs of the power system. The protection function is to control when some power equipment or lines fail. Cut it off the grid just in time to keep the rest running. This requires that no matter what state the power line is in, when the circuit breaker needs to act, it should be able to reliably close or break ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C27/02C22C9/00C22C30/02C23C24/10B22F1/00B22F1/10
CPCC22C27/02C22C9/00C22C30/02C23C24/106
Inventor 薛守洪李保坤吴集光刘从从葛利宏陈磊高正平刘宗德杨耀国张若朋
Owner INNER MONGOLIA POWER GRP
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