Self-adaptive control method for micro-arc oxidation process and system

A technology of self-adaptive control and micro-arc oxidation, applied in the direction of self-adaptive control, general control system, control/regulation system, etc., can solve the problem that the precise control of power supply and output pulse energy needs to be improved, the loop and load energy reuse cannot be realized, etc. problems, to achieve the effect of improving the film forming effect, improving the film forming efficiency and excellent performance

Inactive Publication Date: 2014-05-28
广州市精源电子设备有限公司 +1
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Problems solved by technology

This method adopts a cathode and anode independent voltage regulation structure, which needs to be improved in terms of variable polarity control and loop energy control; the absorption loop adopted simply releases the load energy, and cannot realize the reuse of loop and load energy. The precise control of power supply and output pulse energy needs to be improved

Method used

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  • Self-adaptive control method for micro-arc oxidation process and system
  • Self-adaptive control method for micro-arc oxidation process and system
  • Self-adaptive control method for micro-arc oxidation process and system

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see figure 2 As shown, a micro-arc oxidation process adaptive control method, comprising the following steps:

[0025] Step S101 , applying a test pulse after a certain period of time in the normal processing of the micro-arc oxidation.

[0026] As a preferred embodiment, the test pulses applied in the present invention (including the test pulses applied in subsequent steps) can be a group of test pulses with different amplitudes, frequencies and pulse widths.

[0027] Step S102, identifying the electrical signals acquired during the testing process, establishing the characterization rela...

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Abstract

The invention provides a self-adaptive control method for a micro-arc oxidation process and a system. The method comprises the following steps of applying test pulse after normal processing is carried out on micro-arc oxidation for a certain time, identifying electric signals acquired during the test process to obtain film?breakdown?critical voltage values in the case of different processing times and different film thicknesses, and adjusting power supply output?pulse parameters according to the film?breakdown?critical voltage values obtained after identification and continuing to carry out normal micro-arc oxidation processing according to the adjusted power supply output?pulse parameters, wherein the film?breakdown?critical voltage values comprise breakdown voltage values and breakdown voltage upper limit thresholds. According to the self-adaptive control method for the micro-arc oxidation process and the system, self-adaptive control on the micro-arc oxidation processing process can be realized, film forming effects are effectively improved, the film forming efficiency is enhanced, and a ceramic layer with excellent performances can be obtained.

Description

technical field [0001] The invention relates to the technical field of material surface modification, in particular to a micro-arc oxidation process adaptive control method and a micro-arc oxidation process adaptive control system. Background technique [0002] Micro-arc Oxidation (MAO) is a surface modification technology that grows ceramic films in situ on the surface of non-ferrous metal materials through the combined action of micro-plasma discharge and electrolyte. Among them, the power supply equipment is one of the key links to ensure the micro-arc oxidation process, and its output is directly related to the generation, shape, distribution and function of the micro-arc, which affects the energy consumption of the treatment process and the performance of the film layer. In recent years, there have been more and more researches on micro-arc oxidation power supplies, and the corresponding power supply technology has also made great progress. [0003] At present, the pow...

Claims

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Application Information

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IPC IPC(8): G05B13/04
Inventor 曹彪杨凯黄增好
Owner 广州市精源电子设备有限公司
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