A kind of commutator and its production method

A production method and commutator technology, applied in commutator manufacturing, current collectors, rotating current collectors, etc., can solve problems such as industrial sewage, low service life, and unstable structure

Active Publication Date: 2020-10-30
ZHEJIANG GREATWALL COMMUTATOR
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  • Claims
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Problems solved by technology

[0003] However, this electroless copper plating method always produces industrial sewage, such as heavy metals, copper sulfate, etc.
At the same time, the carbon structure in the carbon sheet after chemical copper plating will be unstable. When used later, the carbon sheet is easy to wear and the service life is not high.

Method used

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  • A kind of commutator and its production method

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Embodiment 2

[0039] The difference from the first embodiment is that the second metal element is titanium, the first metal layer 4 is a metal titanium layer, the first metal alloy layer 5 is an alloy of titanium and carbon, and the second metal alloy layer 6 is titanium and carbon. An alloy of copper. Titanium is a transition metal. Titanium has high strength, low density, high hardness, high melting point and strong corrosion resistance. Carbon-titanium alloy has the high strength and toughness of titanium alloy without losing the lightweight characteristics of carbon fiber.

Embodiment 3

[0041]The difference from the first embodiment is that the second metal element is silver, the first metal layer 4 is a metal silver layer, the first metal alloy layer 5 is an alloy of silver and carbon, and the second metal alloy layer 6 is silver and carbon. An alloy of copper. Silver is a kind of transition metal. The physical and chemical properties of silver are relatively stable. It has good thermal and electrical conductivity, soft quality and rich ductility.

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Abstract

A commutator and a production method therefor, relating to commutators and a preparation method for a commutator. The commutator comprises a housing (1) mainly made of copper; a carbon sheet (2) is welded to the housing (1); the carbon sheet (2) comprises a carbon body (3), and a first metal layer (4) provided on the carbon body (3) and compatible with carbon; the first metal layer (4) and the carbon body (3) are formed with a first metal alloy layer (5); the first metal layer (4) is fixed to the housing (1) and is compatible with copper; and a second metal alloy layer (6) is formed between the first metal layer (4) and the housing (1). In the production method for the commutator, the commutator comprises the housing (1) mainly made of copper and the carbon body (3), and is electroplated by means of vacuum coating. Electroplating in this physical manner reduces environmental pollution, improves the stability of a carbon structure, makes the carbon sheet less prone to wear, and enables a long service life.

Description

technical field [0001] The invention relates to a commutator and a method for preparing the commutator, more specifically, it relates to a commutator and a method for producing the commutator. Background technique [0002] As we all know, the commutator includes a welded and fixed shell and carbon pieces. Since the shell is usually made of copper, and the carbon piece is not strong if it is directly welded to copper, this is because carbon and copper are not close. In the technology, copper plating is first performed on the carbon sheet by chemical means, so that the carbon sheet is covered with a copper layer, and then the copper layer and the shell are welded and fixed. [0003] However, this electroless copper plating method will always produce industrial sewage, such as heavy metals, copper sulfate, etc. At the same time, the structure of carbon in the carbon sheet after chemical copper plating will be unstable. When used later, the carbon sheet is easy to wear and the ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01R39/04H01R43/06
CPCH01R39/04H01R39/045H01R43/06
Inventor黄旭环李哲陈展杨林飞
OwnerZHEJIANG GREATWALL COMMUTATOR