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Electric brush with age-hardening effect and use thereof

An age-hardening, brushing technology, applied in circuits, current collectors, electrical components, etc., can solve the problems of intensified arc erosion, difficulty in meeting use requirements, accelerated brush wear, etc., achieving less burning loss, significant aging strengthening effect, Technically easy effects

Active Publication Date: 2014-04-30
CHONGQING CHUANYI AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is found in use that when the ambient temperature rises to 80-150°C, the wear of this type of brush will be significantly accelerated, and the arc erosion will be intensified, making it difficult to meet the use requirements.

Method used

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  • Electric brush with age-hardening effect and use thereof
  • Electric brush with age-hardening effect and use thereof
  • Electric brush with age-hardening effect and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The alloy compositions of Examples 1 to 12 are shown in Table 1.

[0028]

[0029]

[0030] The preparation and processing technology of above-mentioned alloy are:

[0031] 1) The alloy is prepared by melting in a vacuum induction furnace, in which each element can be added in the form of an intermediate alloy or in the form of pure metal; scraps discarded in the production process and qualified in composition can also be used as raw materials for preparing new alloys;

[0032] 2) Prepare the prepared alloy ingots into strips or wires through blanking, rolling, intermediate annealing, drawing and other processes.

[0033] 3) Using hot rolling, warm rolling or cold rolling composite technology, the above-mentioned strip or wire material is composited with copper alloy to make a layered composite material.

[0034] In order to ensure that the alloy contains Cu 3 Pt and Cu 3 The Au ordered phase, the alloy prepared according to the ratio in Table 1 needs solution ...

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PUM

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Abstract

The invention discloses an electric brush with an age-hardening effect. The alloy comprises the following components in percentage by weight: 30-40% of Ag, 12-20% of Cu, 0.5-2.5% of Pt, 0.1-1.5% of Au, 0.5-2.0% of Zn and the balance of Pd; the alloy contains ordered phases Cu3Pt and Cu3Au through solid-solution treatment and aging treatment. The material contains the ordered phases Cu3Pt and Cu3Au, and thus is improved in hardness and wearability at a high temperature; the material is applicable to the working layer of the electric brush of a small-sized direct-current motor at an environment temperature ranging from 80 DEG C to 150 DEG C; the alloy is combined on the surface of the copper alloy, so that the cost can be saved and the mechanical properties can be improved, and therefore, the properties of the two layers of materials can be developed sufficiently.

Description

technical field [0001] The invention relates to a metal material, in particular to a metal material containing Cu 3 Pt and / or Cu 3 Silver-palladium series high-temperature sliding electrical contact alloy with aging hardening effect of Au ordered phase and application thereof. Background technique [0002] The commutator and the brush plate are the core components of the small DC motor. The main load it bears during work is the sliding friction under the load condition. The damage caused by the sliding friction wear and arc erosion to the material is the failure of the commutator and the brush. , and eventually lead to the main reason for the failure of the micro-motor. Moreover, the temperature rise due to mechanical friction and current action during the electrical contact process will cause recrystallization of the work-hardened material, reducing its hardness and wear resistance, and further aggravating the mechanical wear of the material. [0003] In particular, when...

Claims

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Application Information

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IPC IPC(8): C22C5/04C22C30/06H01R39/20H01R41/00
Inventor 徐永红章应陈容
Owner CHONGQING CHUANYI AUTOMATION
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