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Novel commutator material and manufacturing method thereof

A manufacturing method and commutator technology are applied in the field of commutator materials and their manufacturing, which can solve problems such as poor wear resistance, and achieve the effects of low cost, short production cycle and simple preparation process.

Inactive Publication Date: 2013-01-30
HARBIN LANLING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of commutator material and its manufacturing method in order to solve the problem of poor wear resistance of existing commutator materials

Method used

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Examples

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specific Embodiment approach 1

[0009] Specific embodiment one: In this embodiment, the novel commutator material is made of 3-46 parts of Cu, 11-18 parts of carbon black, 23-34 parts of Ag powder and 18-21 parts of MAX powder in parts by weight become.

specific Embodiment approach 2

[0010] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the new commutator material consists of 38-41 parts of Cu, 14.5 parts of carbon black, 28.2-31.8 parts of Ag powder and 18.5-20.5 parts by weight. made of MAX powder.

specific Embodiment approach 3

[0011] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the new commutator material consists of 39.5-40.5 parts of Cu, 14.8 parts of carbon black, 28.3-28.7 parts of Ag powder and 19-20 parts by weight. made of MAX powder.

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Abstract

The invention relates to a novel commutator material and a manufacturing method thereof. The invention solves a problem of poor wear resistance of existing commutator materials. The material provided by the invention is manufactured from Ag, Cu, carbon black, and MAX powder. The manufacturing method comprises the steps that: Ag, Cu, carbon black, and MAX powder are mixed; anhydrous ethanol is added to the mixture; the obtained mixture is subjected to ball milling and bake-drying; powder obtained by drying is prepared into a pre-cast blank in a graphite mold; the pre-cast blank is preheated to 400-800 DEG C; the temperature is maintained for 15-20min, and a pressure is applied for 30-50 seconds; and the pre-cast blank is cooled to room temperature with a furnace, such that the novel commutator material is obtained. The material provided by the invention has a friction coefficient of approximately 0.1-0.3. When the material provided by the invention is abraded with SiC, an obtained wear rate is only 1*10<-2>mm<3> / Nm. With the novel commutator material manufacturing method provided by the invention, a production period is short, the cost is low, and the preparation method is simple. The method is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a commutator material and a manufacturing method thereof. Background technique [0002] At present, the commutator material used in industry is metal pure copper, but pure copper is soft and has poor wear resistance, and with the rising price of raw materials, the cost of the commutator continues to increase, making the price of the whole machine equipment rise. [0003] The novel commutator mentioned in the present invention uses the self-lubricating series material MAX and carbon black to form the main lubricating framework, and uses an appropriate amount of copper and silver to fill the gaps. This structure greatly reduces the amount of copper in the commutator, and at the same time increases the hardness of the commutator and improves the performance of live friction and wear. Contents of the invention [0004] The object of the present invention is to provide a novel commutator material and a manufacturing method there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C9/00C22C1/05
Inventor 刘宇
Owner HARBIN LANLING TECH
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