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High-performance alloy material and strap-shape composite material for micromotor electric bush and producing method thereof

A technology of alloy materials and composite materials, which is applied in the field of high-performance alloy materials for micro-motor brushes, can solve the problems of high production cost and high material price, and achieves low production cost, improved wear resistance, and improved resistance to material transfer. Effect

Inactive Publication Date: 2016-02-03
SHANGHAI LONGSUN ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the performance of the brush, a six-element alloy material is used as the brush in the prior art. The six-element alloy material contains Au10%, Ag30%, Pd35%, Pt10%, Zn1%, Cu14%. This material improves If the content of Au, Pd, and Pt is increased, the performance of the material is improved, but because the content of Au, Pd, and Pt is all above 10%, the material is expensive and the production cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to the composition ratio of Ag45%, Pt0.3%, Pd40%, Cu14.7%, the ingredients are mixed, the prepared materials are melted, cast into ingots, and made into sliding contact materials through billet opening, rolling, annealing and other processes. The sliding contact material and the copper alloy QSn8-0.3 (Japanese brand C5210) matrix material matching the slot specifications are combined by hot rolling or solid phase room temperature rolling, and the compounded material is repeatedly annealed and rolled. After processing and solution aging treatment to achieve the required thickness, it is cut to the finished product specification and made into a strip-shaped composite material for brushes. The above strip material is made into a DC brush and assembled in a DC motor. The operating environment is: temperature 100°C, humidity 80%, DC voltage 3.6V, speed 8000r / min, required service life 1200h, test ten sets, average service life is 2789h, the minimum lifespan is 2138...

Embodiment 2

[0018] According to the composition ratio of Ag40%, Pt0.5%, Pd42.5%, Cu17%, the ingredients are mixed, the prepared materials are melted, cast into ingots, and the sliding contact materials are made through blank opening, rolling, annealing and other processes. The sliding contact material and the copper alloy CuNi21Sn5 (Japanese brand MX215) matrix material matching the slot specifications are combined by hot rolling or solid phase room temperature rolling. The composite material is repeatedly annealed, rolled and solidified. Melt aging treatment to reach the required thickness, cut to the finished product specifications, and made into a strip-shaped composite material for brushes. The above strip material is made into a DC brush and assembled in a DC motor. The operating environment is: temperature 100°C, humidity 80%, AC voltage 3.6V, speed 8000r / min, required service life 2000h, test ten sets, average service life 3485h , the minimum life of 2873h, the performance can meet...

Embodiment 3

[0020] According to the composition ratio of Ag50%, Pt0.3%, Pd35%, Cu14.7%, the ingredients are mixed, the prepared materials are melted, cast into ingots, and made into sliding contact materials through billet opening, rolling, annealing and other processes. The sliding contact material and the copper alloy CuNi9Sn6 (Japanese brand MX96) matrix material matching the slot specifications are combined by hot rolling or solid phase room temperature rolling, and the composite material is repeatedly annealed, rolled and Solution aging treatment to reach the required thickness, cut to finished product specifications, and made into strip-shaped composite materials for brushes. The above strip material is made into a DC brush and assembled in a DC motor. The operating environment is: temperature 100°C, humidity 80%, AC voltage 3.6V, speed 8000r / min, required service life 2000h, test ten sets, average lifespan 3987h , the minimum life of 3218h, the performance can meet the requirements...

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Abstract

The invention relates to a high-performance alloy material and a strap-shape composite material for a micromotor electric bush and a producing method thereof. The high-performance alloy material for the micromotor electric bush is prepared from, by weight, 40-50wt% of Ag, 0.3-0.5 wt% of Pt, 35-45 wt% of Pd and the balance copper. The strap-shape composite material comprises the high-performance alloy material for the micromotor electric bush and a copper alloy base material. The high-performance alloy material for the micromotor electric bush is compounded in a groove body in the surface of the copper alloy base material. The performance of the alloy material is substantially improved, the Vickers hardness of the material where solid solution aging treatment is performed can be improved about by 50, and abrasion resistance is also greatly improved. The strap-shape composite material is low in production cost, the micromotor electric bush made from the strap-shape composite material is installed and tested, and performance is remarkably improved in a high-temperature and high-humidity environment or under the condition of large torque.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to a high-performance alloy material for micro-motor brushes, a strip composite material and a production method thereof. Background technique [0002] The brush is an important component of the motor. It is a conductive part that makes sliding contact with the moving parts to form an electrical connection. It is used on the commutator or slip ring as a sliding contact body that imports and exports current. The brush is in the working process It is subjected to sliding wear and arc erosion, and is affected by various corrosive media in the use environment. Its performance directly affects the quality and service life of the motor, such as wear resistance and corrosion resistance. At present, AgPd30 and AgPd50 materials are usually used as the contact part of metal materials for micro-motor brushes. For the use of low-end motor brushes with low environmental requirements, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/06C22C30/02
Inventor 尹克江郑旭阳谢攀
Owner SHANGHAI LONGSUN ALLOY CO LTD
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