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Motor rotor aluminum casting surface treatment process

A motor rotor and surface treatment technology, applied in metal material coating process, superimposed layer plating, coating, etc., can solve the problems of poor wear resistance, short service life, high cost, etc., to improve wear resistance, Reduce the cost of the enterprise, the effect of strong combination

Inactive Publication Date: 2016-11-23
DIBAISHI MOTOR TECH SUZHOU CO LTD
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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 surface treatment process for cast aluminum parts of motor rotors, which can overcome the problems of severe corrosion, poor wear resistance, short service life and high cost of cast aluminum parts of motor rotors in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A surface treatment process for a cast aluminum part of a motor rotor, comprising the following steps:

[0024] a: Polish, clean and degrease the surface of the cast aluminum part of the motor rotor;

[0025] b: Place the cast aluminum part of the motor rotor treated in step a in the insulating fixture, so that the rest of the surface of the cast aluminum part of the motor rotor is covered and insulated by the insulating fixture;

[0026] c: Perform electroplating treatment on the cast aluminum part of the motor rotor that has been insulated in step b, form a zinc transition layer on the surface of the cast aluminum part of the motor rotor, and remove the insulating fixture. The specific operation of the electroplating treatment is as follows: put at least one Mix more than one kind of zincate, add surfactant, and electroplate for 10 minutes under the condition of acidity and temperature of 20°C;

[0027] d: Use chromate chemical treatment process to carry out chromate...

Embodiment 2

[0032] A surface treatment process for a cast aluminum part of a motor rotor, comprising the following steps:

[0033] a: Polish, clean and degrease the surface of the cast aluminum part of the motor rotor;

[0034] b: Place the cast aluminum part of the motor rotor treated in step a in the insulating fixture, so that the rest of the surface of the cast aluminum part of the motor rotor is covered and insulated by the insulating fixture;

[0035] c: Perform electroplating treatment on the cast aluminum part of the motor rotor that has been insulated in step b, form a zinc transition layer on the surface of the cast aluminum part of the motor rotor, and remove the insulating fixture. The specific operation of the electroplating treatment is as follows: put at least one Mix more than one kind of zincate, add a surfactant, and electroplate for 20 minutes under acidic conditions at a temperature of 35°C;

[0036] d: Use chromate chemical treatment process to chromate the surface o...

Embodiment 3

[0041] A surface treatment process for a cast aluminum part of a motor rotor, comprising the following steps:

[0042] a: Polish, clean and degrease the surface of the cast aluminum part of the motor rotor;

[0043] b: Place the cast aluminum part of the motor rotor treated in step a in the insulating fixture, so that the rest of the surface of the cast aluminum part of the motor rotor is covered and insulated by the insulating fixture;

[0044] c: Perform electroplating treatment on the cast aluminum part of the motor rotor that has been insulated in step b, form a zinc transition layer on the surface of the cast aluminum part of the motor rotor, and remove the insulating fixture. The specific operation of the electroplating treatment is as follows: put at least one Mix more than one kind of zincate, add surfactant, and electroplate for 25 minutes under the condition of acidity and temperature of 45°C;

[0045] d: Use chromate chemical treatment process to carry out chromate...

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Abstract

The invention discloses a surface treatment process of a motor rotor cast aluminum part, which comprises the following steps: a: pretreating the surface of the motor rotor cast aluminum part; b: insulating the motor rotor cast aluminum part; c: casting the motor rotor Aluminum parts are electroplated; d: Chromate treatment is carried out on the surface of the motor rotor cast aluminum parts by chromate chemical treatment process; e: Vapor deposition treatment is carried out on the surface of the motor rotor cast aluminum parts; f: The second baking Dry processing; g: cooling to room temperature after 6‑8h of heat preservation. In the present invention, the surface of the cast aluminum part of the motor rotor is treated multiple times before the vapor deposition of the ceramic film, including a zinc transition layer and a chromate layer, so as to realize multiple protections on the surface of the cast aluminum part, and the bonding between layers Strong force, reduce the phenomenon that the ceramic film is easy to peel off, and significantly improve the wear resistance of the cast aluminum parts of the motor rotor, durable, reduce the cost of the enterprise, and facilitate the improvement of economic benefits.

Description

technical field [0001] The invention relates to the technical field of surface treatment of motor rotors, in particular to a surface treatment process for cast aluminum parts of motor rotors. Background technique [0002] The motor rotor is the rotating part of the motor. It is used to realize the conversion of electrical energy and mechanical energy, mechanical energy and electrical energy. Therefore, the performance of the motor rotor directly affects the efficiency of the energy conversion of the motor. At present, the motor rotor generally adopts cast aluminum parts, but the surface corrosion of cast aluminum parts is relatively serious. If it is corroded for a long time, the tensile strength, yield strength and other properties of cast aluminum parts will gradually decrease, and the safety will decrease, which will directly affect the work of the motor. At the same time, it seriously affects the appearance of cast aluminum parts, and also has high requirements for the w...

Claims

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Application Information

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IPC IPC(8): C23C28/00
CPCC23C28/3225C23C28/34C23C28/341C23C28/345
Inventor 王凯
Owner DIBAISHI MOTOR TECH SUZHOU CO LTD