CN103823370B - Micro-arc oxidation process self-adaptation control method and system - Google Patents
Micro-arc oxidation process self-adaptation control method and system Download PDFInfo
- Publication number
- CN103823370B CN103823370B CN201410036861.5A CN201410036861A CN103823370B CN 103823370 B CN103823370 B CN 103823370B CN 201410036861 A CN201410036861 A CN 201410036861A CN 103823370 B CN103823370 B CN 103823370B
- Authority
- CN
- China
- Prior art keywords
- voltage
- breakdown
- arc oxidation
- rete
- identification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention provides a kind of micro-arc oxidation process self-adaptation control method and system, said method comprising the steps of: after the normal process certain hour of differential arc oxidation, apply test pulse; Identification is carried out to the electric signal obtained in test process, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers; Described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values; Export pulse parameter according to the rete breakdown critical magnitude of voltage adjustment power supply that identification obtains, and export with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.A kind of micro-arc oxidation process self-adaptation control method of the present invention and system, can realize, to the adaptive control of differential arc oxidation processing procedure, effectively improving film-formation result, improving film forming efficiency, can obtain the ceramic layer of excellent performance.
Description
Technical field
The present invention relates to material surface modifying technology field, particularly relate to a kind of micro-arc oxidation process self-adaptation control method and a kind of micro-arc oxidation process adaptive control system.
Background technology
Differential arc oxidation (Micro-arcOxidation, MAO) is a kind of combined action by microplasma discharge and electrolytic solution, at the process for modifying surface of nonferrous metal material surface growth in situ ceramic membrane.Wherein power-supply device is one of the key link ensureing micro-arc oxidation process, its export be directly connected to micro-electric arc generation, form, distribution and effect, affect the performance of processing procedure energy consumption and rete.Research in recent years about mao power source gets more and more, and corresponding power technology also has very much progress.
Power supply at present for differential arc oxidation process mainly contains alternating current source, DC source, pulse direct current source and the Variable Polarity pulse power etc.Pulse (Variable Polarity) power supply interrupts owing to allowing electric arc, better to the controllability of micro-arc oxidation process, processes the film performance obtained more excellent, is thus more and more applied.
In power supply architecture, have adopt anode and cathode independently pressure-adjusting type structure realize many wave form output, also have and adopt the multi-modes such as DSP (DigitalSignalProcessor, microprocessor) control realization direct current/pulse/Variable Polarity to export based on two-stage inversion transformation technique.Wherein contravariant structure has the advantages such as Drazin inverse precision is high, response is fast, Waveform Control is meticulous, stable output, equipment volume are little, energy-conservation, is the developing direction of power technology.
In processing procedure control, mainly contain current constant control pattern and Isobarically Control pattern.The control model of existing power supply just according to practical experience to the control of electrical quantity, be not that therefore procedure parameter of its setting and the rationality of Changing Pattern thereof remain to be discussed with load or treatment state for feedback quantity more effectively controls implementation process.
Learnt by practical observation, in differential arc oxidation processing procedure, power source loads presents typical capacitive effect, and the voltage waveform of the actual output of power supply exists conditions of streaking (as shown in Figure 1), makes traditional pulse power supply cannot realize real high frequency output.The high-frequency high-power differential arc oxidation pulse power in belt discharge gap, utilizes the absorbing circuit be made up of electronic switch and resistance to realize declining fast to the voltage waveform of load end during output pulse cut-off, thus realizes upper frequency (5kHz) output.The method adopts anode and cathode independently pressure-adjusting type structure, haves much room for improvement in Variable Polarity control, loop power control; The absorption circuit adopted is simply cannot realize the recycling to loop, load energy to load energy release, to power supply and export the precise hard_drawn tuhes of pulse energy and have much room for improvement.
Summary of the invention
Based on this, the invention provides a kind of micro-arc oxidation process self-adaptation control method and system, the adaptive control to differential arc oxidation processing procedure can be realized, thus effectively improve film-formation result and promote film forming efficiency.
For achieving the above object, the present invention adopts following technical scheme:
A kind of micro-arc oxidation process self-adaptation control method, comprises the following steps:
After the normal process certain hour of differential arc oxidation, apply test pulse;
Identification is carried out to the electric signal obtained in test process, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers; Described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values;
Export pulse parameter according to the rete breakdown critical magnitude of voltage adjustment power supply that identification obtains, and export with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.
A kind of micro-arc oxidation process adaptive control system, comprising:
Test pulse applies module, for after the normal process certain hour of differential arc oxidation, applies test pulse;
Critical voltage value recognition module, for carrying out identification to the electric signal obtained in test process, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers; Described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values;
Parameter adjustment module, exports pulse parameter for the rete breakdown critical magnitude of voltage adjustment power supply obtained according to identification, and exports with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.
As can be seen from above scheme, a kind of micro-arc oxidation process self-adaptation control method of the present invention and system, at normal process a period of time after-applied test pulse, and the rete breakdown critical magnitude of voltage carried out when on-line identification obtains different disposal time, different thicknesses of layers, the rete breakdown critical magnitude of voltage then obtained according to identification adjusts power supply in real time and exports pulse parameter.The present invention realizes the adaptive control to differential arc oxidation processing procedure by the process of " test-identification-self-adjusting " that move in circles, electric arc can be made to remain fine spark discharge or micro-arc discharge state, can the conform change of condition of rete is made to be in optimum all the time or close to optimum growth conditions, scheme provided by the invention is adopted to process, effectively can improve film-formation result, promote film forming efficiency, obtain the ceramic layer of excellent performance.
Accompanying drawing explanation
Fig. 1 is pulse output waveform schematic diagram under capacitive load state;
Fig. 2 is the schematic flow sheet of a kind of micro-arc oxidation process self-adaptation control method of the present invention;
Fig. 3 is a kind of voltage tester timing chart;
Fig. 4 is on-line identification electrical quantity curve synoptic diagram;
Fig. 5 is the structural representation of a kind of micro-arc oxidation process adaptive control system of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Shown in Figure 2, a kind of micro-arc oxidation process self-adaptation control method, comprises the following steps:
Step S101, after the normal process certain hour of differential arc oxidation, applies test pulse.
As a good embodiment, the test pulse applied in the present invention (comprising the test pulse applied in subsequent step) can be one group of amplitude, frequency and pulsewidth test pulse not etc.
Step S102, carries out identification to the electric signal obtained in test process, sets up the characterization of relation between electrical quantity and electric arc and rete state, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers.
It should be noted that, described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values.Wherein, breakdown voltage value refers in processing procedure the minimum amount of voltage that making surface of the work occur required for micro-arcing events, and voltage breakdown upper limit threshold values refers to that electric arc pattern changes the critical voltage of large arc discharge into by fine electric spark.
Step S103, pulse parameter is exported according to the rete breakdown critical magnitude of voltage adjustment power supply that identification obtains, electric arc is made to remain fine spark discharge or micro-arc discharge state, make can the conform change of condition of rete be in optimum all the time or close to optimum growth conditions, and export with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.
In the embodiment of the present invention, after normal process a period of time, apply one group of amplitude, frequency and pulsewidth test pulse not etc., pass through voltage sensor simultaneously, current sensor carries out detection sampling to the electric signal of test pulse, after Treatment Analysis is carried out to the digital signal of sampling feedback, electrical quantity identification is carried out to the electric arc in this moment and rete, carry out to exporting pulse parameter the electrical quantity that on-line tuning exports applicable coating growth after identification, the process of " test-identification-adjustment " (i.e. step S101-step S103) is repeated after continuing process a period of time, electric arc is made to remain fine spark discharge or micro-arc discharge state, can the conform change of condition of rete is made to be in optimum all the time or close to optimum growth conditions.Namely as a good embodiment, the present invention, after exporting pulse parameter with the power supply after adjustment and proceeding the normal process of differential arc oxidation, can also comprise the steps:
Step S104, when the critical electric current value that current density drops to when puncturing without rete being detected, continues to apply test pulse; Wherein, the amplitude base value of this test pulse applied gets the breakdown voltage value that last identification obtains.
In the present invention, the processing procedure of differential arc oxidation is " self-adaptation ", and namely all " test-identification-adjustment " processes are all self-regulating online, do not need human intervention or set in advance.The time (" certain hour " namely in step S101) applying test pulse in processing procedure is determined by detection electric current or current density value, when electric current or current density value drop to critical electric current value, just applies new test pulse.
Step S105, the rete breakdown critical magnitude of voltage that identification makes new advances, and readjust power supply according to the rete breakdown critical magnitude of voltage that this identification obtains and export pulse parameter for normal process next time, until magnitude of voltage reaches voltage breakdown upper limit threshold values.
In addition, as a good embodiment, the process of carrying out identification in step S102 of the present invention specifically can comprise as follows:
Step S1021, the pulse voltage obtained sampling, current digital signal carry out pre-service, reduce or eliminate the undesired signal (as high frequency noise) in sampled data, as far as possible truly reduction actual electrical signal;
Step S1022, carries out effective value computing to data after pre-service, obtains the effective value of single test pulse;
Step S1023, according to described effective value determination electric current or current-rising-rate catastrophe point, and is recognized as breakdown voltage value by this electric current or magnitude of voltage corresponding to current-rising-rate catastrophe point;
Step S1024, if in test pulse voltage range, there is decline flex point in current value after rising flex point, then magnitude of voltage corresponding for the decline flex point of electric current or current-rising-rate is recognized as voltage breakdown upper limit threshold values.
As a good embodiment, in step S1021, described in carry out pretreated process and specifically can comprise: digital filtering process and digital smoothness process etc.
In addition, as a good embodiment, after identification obtains described voltage breakdown upper limit threshold values, can also comprise the steps:
Step S1025, carries out frequency-domain analysis to electric signal, obtains corresponding amplitude-frequency, phase frequency relation, and the method by numerical fitting obtains loaded impedance spectrum, identification rete status.The breakdown voltage value that identification obtains and voltage breakdown upper limit threshold values are that pulse parameter on-line tuning provides term of reference.
Below by a concrete example, the solution of the present invention is described: sample material 6061Al alloy, specimen size is φ=4mm, and electrolytic solution is alkaline sodium silicate solution, PH=11.Initial time applies relative broad range voltage tester pulse parameter: pulsed frequency 500Hz, pulsewidth 1ms, pulse amplitude base value 100V, pulse amplification 10V, pulse amplitude higher limit 450V.The voltage tester pulse signal applied as shown in Figure 3, the test pulse I-V curve that data processing obtains is as shown in Fig. 4 (a), there is the identification that obvious flex point can be used for critical voltage in curve, it is 365V that identification obtains breakdown voltage value, voltage breakdown upper limit threshold values is 430V, and current density value during to puncture without rete is for applying test pulse whether critical value.After on-line identification terminates, the breakdown voltage value obtained with identification continues normal process, when detecting that current density drops to critical electric current value, continues to apply test pulse; Now added test pulse parameter can suitably adjust, and employing frequency is higher, pulsewidth is narrower, amplitude base value gets last breakdown voltage value, pulse amplification less (1V).Can obtain after Treatment Analysis is carried out to test pulse data and test pulse I-V curve that Fig. 4 (b) is similar, new voltage breakdown can be recognized, automatically adjust pulse output parameter for normal process next time according to identification result.The process of carrying out and so forth " test-identification-self-adjusting ", until magnitude of voltage reaches rete puncture upper limit threshold values, judges that this process terminates.
The present invention adopts self-adaptation-pid control algorithm to carry out on-line control to output pulse parameter.Because the mechanism of action of positive negative pulse stuffing is different, the electrical characteristics that load presents are also different, when different arc shape and rete state, the pid control parameter of required employing is also different, and self-adaptation-pid control algorithm can realize carrying out self-adjusting to power supply output pulse parameter and accurately control.
It should be noted that, method of the present invention goes for the differential arc oxidation process of the non ferrous metal and their alloy such as aluminium, magnesium, titanium, zirconium.
Corresponding with above-mentioned a kind of micro-arc oxidation process self-adaptation control method, the present invention also provides a kind of micro-arc oxidation process adaptive control system, as shown in Figure 5, comprising:
Test pulse applies module 101, for after the normal process certain hour of differential arc oxidation, applies test pulse;
Critical voltage value recognition module 102, for carrying out identification to the electric signal obtained in test process, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers; Described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values;
Parameter adjustment module 103, exports pulse parameter for the rete breakdown critical magnitude of voltage adjustment power supply obtained according to identification, and exports with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.
As a good embodiment, described test pulse applies module 101 and can also be used for when the critical electric current value that current density drops to when puncturing without rete being detected, continues to apply test pulse; Wherein, the amplitude base value of this test pulse applied gets the breakdown voltage value that last identification obtains.
In addition, described critical voltage value recognition module 102 can also be used for the rete breakdown critical magnitude of voltage that identification makes new advances, and readjust power supply according to the rete breakdown critical magnitude of voltage that this identification obtains and export pulse parameter for normal process next time, until magnitude of voltage reaches voltage breakdown upper limit threshold values.
As a good embodiment, described critical voltage value recognition module 102 can comprise:
Pretreatment module, for carrying out pre-service to pulse voltage, the current digital signal obtained of sampling, eliminates the undesired signal in sampled data;
Effective value acquisition module, for carrying out effective value computing to data after pre-service, obtains the effective value of single test pulse;
Breakdown voltage value recognition module, for according to described effective value determination electric current or current-rising-rate catastrophe point, and is recognized as breakdown voltage value by this electric current or magnitude of voltage corresponding to current-rising-rate catastrophe point;
Voltage breakdown upper limit threshold values recognition module, in test pulse voltage range, if current value has occurred decline flex point after rising flex point, has then been recognized as voltage breakdown upper limit threshold values by magnitude of voltage corresponding for the decline flex point of electric current or current-rising-rate.
As a good embodiment, described critical voltage value recognition module 102 can also comprise:
Rete state recognition module, for obtain described voltage breakdown upper limit threshold values in identification after, carries out frequency-domain analysis to electric signal, obtains corresponding amplitude-frequency, phase frequency relation, and the method by numerical fitting obtains loaded impedance spectrum, identification rete status.
Other technical characteristic of above-mentioned a kind of micro-arc oxidation process adaptive control system is identical with a kind of micro-arc oxidation process self-adaptation control method of the present invention, and it will not go into details herein.
Can be found out by above scheme, a kind of micro-arc oxidation process self-adaptation control method of the present invention and system, at normal process a period of time after-applied test pulse, and the rete breakdown critical magnitude of voltage carried out when on-line identification obtains different disposal time, different thicknesses of layers, the rete breakdown critical magnitude of voltage then obtained according to identification adjusts power supply in real time and exports pulse parameter.The present invention realizes the adaptive control to differential arc oxidation processing procedure by the process of " process-identification-self-adjusting " that move in circles, electric arc can be made to remain fine spark discharge or micro-arc discharge state, can the conform change of condition of rete is made to be in optimum all the time or close to optimum growth conditions, scheme provided by the invention is adopted to process, effectively can improve film-formation result, promote film forming efficiency, obtain the ceramic layer of excellent performance.
Unless context separately has the description of specific distinct, the element in the present invention and assembly, the form that quantity both can be single exists, and form that also can be multiple exists, and the present invention does not limit this.Although the step in the present invention arranges with label, and be not used in and limit the precedence of step, the order of step or the execution of certain step need based on other steps unless expressly stated, otherwise the relative rank of step is adjustable.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a micro-arc oxidation process self-adaptation control method, is characterized in that, comprises the following steps:
After the normal process certain hour of differential arc oxidation, apply test pulse;
Identification is carried out to the electric signal obtained in test process, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers; Described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values;
Export pulse parameter according to the rete breakdown critical magnitude of voltage adjustment power supply that identification obtains, and export with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.
2. micro-arc oxidation process self-adaptation control method according to claim 1, is characterized in that, after exporting pulse parameter with the power supply after adjustment and proceeding the normal process of differential arc oxidation, also comprises step:
When the critical electric current value that current density drops to when puncturing without rete being detected, continue to apply test pulse; Wherein, the amplitude base value of this test pulse applied gets the breakdown voltage value that last identification obtains;
The rete breakdown critical magnitude of voltage that identification makes new advances, and readjust power supply according to the rete breakdown critical magnitude of voltage that this identification obtains and export pulse parameter for normal process next time, until magnitude of voltage reaches voltage breakdown upper limit threshold values.
3. micro-arc oxidation process self-adaptation control method according to claim 1, is characterized in that, the test pulse applied is one group of amplitude, frequency and pulsewidth test pulse not etc.
4. the micro-arc oxidation process self-adaptation control method according to claim 1 or 2 or 3, is characterized in that, described in carry out identification process comprise:
The pulse voltage obtained sampling, current digital signal carry out pre-service, eliminate the undesired signal in sampled data;
Effective value computing is carried out to data after pre-service, obtains the effective value of single test pulse;
According to described effective value determination electric current or current-rising-rate catastrophe point, and this electric current or magnitude of voltage corresponding to current-rising-rate catastrophe point are recognized as breakdown voltage value;
If in test pulse voltage range, there is decline flex point in current value after rising flex point, then magnitude of voltage corresponding for the decline flex point of electric current or current-rising-rate is recognized as voltage breakdown upper limit threshold values.
5. micro-arc oxidation process self-adaptation control method according to claim 4, is characterized in that, after identification obtains described voltage breakdown upper limit threshold values, also comprises step:
Carry out frequency-domain analysis to electric signal, obtain corresponding amplitude-frequency, phase frequency relation, the method by numerical fitting obtains loaded impedance spectrum, identification rete status.
6. micro-arc oxidation process self-adaptation control method according to claim 4, is characterized in that, described in carry out pretreated process and comprise: digital filtering process and digital smoothness process.
7. a micro-arc oxidation process adaptive control system, is characterized in that, comprising:
Test pulse applies module, for after the normal process certain hour of differential arc oxidation, applies test pulse;
Critical voltage value recognition module, for carrying out identification to the electric signal obtained in test process, obtains rete breakdown critical magnitude of voltage when different disposal time, different thicknesses of layers; Described rete breakdown critical magnitude of voltage comprises breakdown voltage value and voltage breakdown upper limit threshold values;
Parameter adjustment module, exports pulse parameter for the rete breakdown critical magnitude of voltage adjustment power supply obtained according to identification, and exports with the power supply after adjustment the normal process that pulse parameter proceeds differential arc oxidation.
8. micro-arc oxidation process adaptive control system according to claim 7, is characterized in that, described test pulse applies module also for when the critical electric current value that current density drops to when puncturing without rete being detected, continues to apply test pulse; Wherein, the amplitude base value of this test pulse applied gets the breakdown voltage value that last identification obtains;
Described critical voltage value recognition module is also for rete breakdown critical magnitude of voltage that identification makes new advances, and readjust power supply according to the rete breakdown critical magnitude of voltage that this identification obtains and export pulse parameter for normal process next time, until magnitude of voltage reaches voltage breakdown upper limit threshold values.
9. the micro-arc oxidation process adaptive control system according to claim 7 or 8, is characterized in that, described critical voltage value recognition module comprises:
Pretreatment module, for carrying out pre-service to pulse voltage, the current digital signal obtained of sampling, eliminates the undesired signal in sampled data;
Effective value acquisition module, for carrying out effective value computing to data after pre-service, obtains the effective value of single test pulse;
Breakdown voltage value recognition module, for according to described effective value determination electric current or current-rising-rate catastrophe point, and is recognized as breakdown voltage value by this electric current or magnitude of voltage corresponding to current-rising-rate catastrophe point;
Voltage breakdown upper limit threshold values recognition module, in test pulse voltage range, if current value has occurred decline flex point after rising flex point, has then been recognized as voltage breakdown upper limit threshold values by magnitude of voltage corresponding for the decline flex point of electric current or current-rising-rate.
10. micro-arc oxidation process adaptive control system according to claim 9, is characterized in that, described critical voltage value recognition module also comprises:
Rete state recognition module, for obtain described voltage breakdown upper limit threshold values in identification after, carries out frequency-domain analysis to electric signal, obtains corresponding amplitude-frequency, phase frequency relation, and the method by numerical fitting obtains loaded impedance spectrum, identification rete status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036861.5A CN103823370B (en) | 2014-01-24 | 2014-01-24 | Micro-arc oxidation process self-adaptation control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036861.5A CN103823370B (en) | 2014-01-24 | 2014-01-24 | Micro-arc oxidation process self-adaptation control method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103823370A CN103823370A (en) | 2014-05-28 |
| CN103823370B true CN103823370B (en) | 2016-03-30 |
Family
ID=50758488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036861.5A Expired - Fee Related CN103823370B (en) | 2014-01-24 | 2014-01-24 | Micro-arc oxidation process self-adaptation control method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103823370B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054616B (en) * | 2016-07-27 | 2018-12-14 | 昆明理工大学 | The titanium strip coil continuous acid-washing looper height control method of fuzzy logic PID controller parameter |
| CN107419315A (en) * | 2017-05-12 | 2017-12-01 | 深圳市粤辉煌环保技术有限公司 | A kind of preparation method of magnesium alloy black micro-arc oxidation films |
| CN107186295B (en) * | 2017-05-27 | 2019-10-18 | 南京理工大学 | A kind of energy control methods such as the constant frequency of the fine electric spark pulse power |
| CN111647924B (en) * | 2020-06-09 | 2021-08-20 | 南京工业大学 | On-line monitoring system for micro-arc oxidation film forming process |
| CN112630296A (en) * | 2020-11-27 | 2021-04-09 | 南京肯特复合材料股份有限公司 | Method for rapidly detecting density of aluminum anodic oxide film layer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311354A (en) * | 2001-01-20 | 2001-09-05 | 来永春 | Method and device for coating metal surface by micro arc oxidation |
| KR20040000889A (en) * | 2002-06-26 | 2004-01-07 | 주식회사 알파크린테크 | Automatic control device for micro arc oxidation and automatic controlling method thereof |
| CN1619021A (en) * | 2004-09-21 | 2005-05-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Large capacity titanium alloy pulse micro arc anode oxidation dynamic control power source |
| CN101275262A (en) * | 2007-12-18 | 2008-10-01 | 华南理工大学 | Control method for electrical parameters in micro-arc oxidation process |
| CN101311325A (en) * | 2008-02-25 | 2008-11-26 | 华南理工大学 | Two level inverter type MAO power source and output regulation control method thereof |
| CN202435294U (en) * | 2012-01-11 | 2012-09-12 | 成都启臣微电子有限公司 | Pulse width modulation switch power supply controller and switch power supply |
| CN202931219U (en) * | 2012-11-05 | 2013-05-08 | 天津奕能科技发展有限公司 | Microarc oxidation power supply |
-
2014
- 2014-01-24 CN CN201410036861.5A patent/CN103823370B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311354A (en) * | 2001-01-20 | 2001-09-05 | 来永春 | Method and device for coating metal surface by micro arc oxidation |
| KR20040000889A (en) * | 2002-06-26 | 2004-01-07 | 주식회사 알파크린테크 | Automatic control device for micro arc oxidation and automatic controlling method thereof |
| CN1619021A (en) * | 2004-09-21 | 2005-05-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Large capacity titanium alloy pulse micro arc anode oxidation dynamic control power source |
| CN101275262A (en) * | 2007-12-18 | 2008-10-01 | 华南理工大学 | Control method for electrical parameters in micro-arc oxidation process |
| CN101311325A (en) * | 2008-02-25 | 2008-11-26 | 华南理工大学 | Two level inverter type MAO power source and output regulation control method thereof |
| CN202435294U (en) * | 2012-01-11 | 2012-09-12 | 成都启臣微电子有限公司 | Pulse width modulation switch power supply controller and switch power supply |
| CN202931219U (en) * | 2012-11-05 | 2013-05-08 | 天津奕能科技发展有限公司 | Microarc oxidation power supply |
Non-Patent Citations (1)
| Title |
|---|
| 一种微弧氧化逆变电源控制系统;曾敏等;《华南理工大学学报(自然科学版)》;20090228;第37卷(第2期);论文第40－44页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103823370A (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103823370B (en) | Micro-arc oxidation process self-adaptation control method and system | |
| CN105206494B (en) | The impedance matching methods of pulse radiation frequency power supply and the matching process of plasma apparatus | |
| CN111817711B (en) | Frequency tracking method of ultrasonic processing system | |
| CN105499109B (en) | Ultrasonic anti-scale descaling control system | |
| CN101789685B (en) | Partial PFC device and control method thereof | |
| CN103695980A (en) | Preparation method of single-layer micro-arc oxidation ceramic film on surface of aluminum alloy | |
| CN109921493B (en) | Pulse charging optimization method based on lithium ion battery alternating current impedance equivalent circuit model | |
| CN102684544A (en) | Maximum power point tracking controller for three-phase photovoltaic power generation system | |
| CN104894628A (en) | Method for using stage voltage boosting to prepare magnesium alloy micro-arc oxidation ceramic layer | |
| CN105528633A (en) | Frequency adaptive adjusting device and method for non-contact chip | |
| CN202548688U (en) | Pulse power source control system | |
| CN108631586B (en) | A kind of control method and device of generated output power | |
| CN103683981B (en) | Unipolarity low-temperature plasma electrical source | |
| CN203748095U (en) | Low temperature plasma generator power supply for critical spark control | |
| Manganiello et al. | On-line optimization of the P&O MPPT method by means of the system identification | |
| CN110336279B (en) | Electric power system oscillation self-adaptive suppression method, system and medium based on grid-connected converter | |
| CN105048856B (en) | A kind of sinusoidal impulse crude oil electric dewatering power supply and its production method based on PWM | |
| CN108282077A (en) | adaptive PI adjusting method | |
| Zhu et al. | A novel islanding detection method of distributed generator based on wavelet transform | |
| CN106505621B (en) | Inverter and its control method and device | |
| CN206948202U (en) | High-field electrode paper tinsel laboratory power source special | |
| CN108134391A (en) | A kind of control method of Three-Phase PWM Rectifier for grid voltage waveform distortion | |
| CN108107736A (en) | A kind of single-pole switch break feeds back automatic correction controling method | |
| CN102684528A (en) | Self-adaptive dead-zone compensation method based on intelligent unit series high-voltage frequency converter | |
| CN106785891A (en) | A kind of non-overshoot it is fast before and after along Multiple pulse superposition method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20200124 |