CN109423673A - Go differential arc oxidation film layer medicament and its method - Google Patents
Go differential arc oxidation film layer medicament and its method Download PDFInfo
- Publication number
- CN109423673A CN109423673A CN201710778217.9A CN201710778217A CN109423673A CN 109423673 A CN109423673 A CN 109423673A CN 201710778217 A CN201710778217 A CN 201710778217A CN 109423673 A CN109423673 A CN 109423673A
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- Prior art keywords
- arc oxidation
- film layer
- differential arc
- oxidation film
- workpiece
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/30—Anodisation of magnesium or alloys based thereon
Abstract
The present invention relates to technical field of micro-arc oxidization, are specifically related to one kind and go differential arc oxidation film layer medicament and its method.This removes differential arc oxidation film layer medicament, with densimeter, comprising: at least one of lactic acid, a- amino acid, citric acid, sodium phytate, adipic acid, 2-5g/L；Solvent is deionized water.The method for removing differential arc oxidation film layer includes: to be placed on workpiece described to go to react a period of time in differential arc oxidation film layer medicament；It is constantly scrubbed in reaction process at the differential arc oxidation film layer of workpiece, reacts it sufficiently with differential arc oxidation film layer medicament is removed；After reaction time arrives, the differential arc oxidation film layer of workpiece is stripped；Workpiece is post-processed.Compared to the prior art, of the invention to go differential arc oxidation film layer medicament that remove differential arc oxidation film layer, the workpiece after getting rid of can differential arc oxidation again.Pollution of the invention is small, at low cost, and it is thorough to remove differential arc oxidation film layer.Thus it is ineffective to solve the problems, such as that micro-arc oxidation workpiece strips differential arc oxidation film layer.
Description
[technical field]
The present invention relates to technical field of micro-arc oxidization, are specifically related to one kind and go differential arc oxidation film layer medicament and its method.
[background technique]
Differential arc oxidation or microplasma surface ceramic deposition technology refer on the basis of common anode oxidation, utilize arc
Light electric discharge enhances and activates the reaction occurred on anode, thus using aluminium, titanium, magnesium metal and its alloy as the workpiece table of material
Face forms the good method for strengthening ceramic membrane.
The processing of differential arc oxidation is carried out sometimes for the workpiece for crossing differential arc oxidation.Processing method at this stage has
Polishing method, plasma throw division, strong acid ablution, electrolysis method etc..Polishing method is exactly using polishing jig by the micro- of workpiece surface
Arc oxidation film layer is ground off, but method of polishing is easy to damage workpiece, and the differential arc oxidation film layer at the deep hole position on workpiece is difficult to clean off；
Plasma polishing be powered in workpiece and polishing fluid disengaging adsorption of metal ions in workpiece surface, workpiece high spot (differential of the arc oxygen
Change film layer) rush of current is high and removes fastly, constantly workpiece is flattened to remove differential arc oxidation film layer, but plasma throwing removes
The slow low efficiency of method speed, equipment cost are higher；Strong acid ablution refers to using strong acid solution, in not disfiguring workpiece itself as far as possible
Under the premise of, by workpiece pickling to the method that removes differential arc oxidation film layer, but the waste liquid environmental pollution that generates of this method compared with
Greatly, emission treatment can generate additional cost；Electrolysis method, which refers to, generates redox reaction in electrolytic cell to shell near electrode
Except differential arc oxidation film layer, this method requires to have higher precision and may generate defective products again.
In view of this, differential arc oxidation film layer medicament and its method are gone it is really necessary to develop one kind, to solve the above problems.
[summary of the invention]
Therefore, the purpose of the present invention is to provide one kind to remove differential arc oxidation film layer medicament.Make every effort to polluting item small, at low cost
Under part, achieve the purpose that remove differential arc oxidation film layer.
In order to achieve the above object, this removes differential arc oxidation film layer medicament, with densimeter, comprising:
At least one of lactic acid, a- amino acid, citric acid, sodium phytate, adipic acid, 2-5g/L；
Solvent is deionized water.
Optionally, the temperature of the deionized water is 25-28 DEG C.
The present invention also provides a kind of method that use carries out differential arc oxidation film layer with the differential arc oxidation film layer medicament that gets on, packets
Include that steps are as follows:
(1) workpiece is placed on and described goes to react a period of time in differential arc oxidation film layer medicament；
(2) it is constantly scrubbed in reaction process at the differential arc oxidation film layer of the workpiece, it is made to remove micro-arc oxidation films with described
Layer medicament sufficiently reacts；
(3) after the reaction time arrives, the differential arc oxidation film layer of the workpiece is stripped；
(4) workpiece is post-processed.
Wherein, the workpiece by micro-arc oxidation treatment and has micro-arc oxidation films.
Optionally, the reaction time in the step (1) is 3 minutes.
Optionally, micro-arc oxidation films are stripped in the scrub differential arc oxidation film layer in the step (2) and step (3)
The usable capillary copper brush of layer is handled.
Optionally, in the step (3), the differential arc oxidation film layer of the soaking time to the rear workpiece is by greyish white discoloration
For dark-grey black.
Optionally, the post-processing in the step (4) is to wash with water the workpiece, then 120 DEG C at a temperature of into
Row baking.
Compared to the prior art, of the invention to go differential arc oxidation film layer medicament that remove differential arc oxidation film layer, it gets rid of
Afterwards, associated workpiece can re-start differential arc oxidation.Pollution of the invention is small, at low cost, and it is thorough to remove differential arc oxidation film layer.By
It is ineffective that this solves the problems, such as that micro-arc oxidation workpiece strips differential arc oxidation film layer.
[Detailed description of the invention]
Fig. 1 is schematically shown as the flow chart of differential arc oxidation film layer.
[specific embodiment]
The treatment process of differential arc oxidation is as follows:
It is the configuration of micro-arc oxidation electrolyte first.Using deionized water as solvent, under conditions of 20-35 DEG C, successively plus
Enter following components: the film forming agent of film forming agent 7-20g/l is added, stirs evenly until being completely dissolved；Auxiliary film former 5- is added
10g/l；It is eventually adding PH regulator 5-12g/l, the pH value of electrolyte is controlled in the range of 10-13.
Wherein, film forming agent is silicate, phosphate, at least one of aluminate；Auxiliary film former is potassium fluoride or fluorine
Change a kind of in sodium；PH regulator is one kind of sodium hydroxide or potassium hydroxide.
The present embodiment using AZ91D magnesium alloy workpiece, having a size of 220*120*2.5mm.Power-supply device uses
280A dipulse differential of the arc power supply.The electrical parameter situation of micro-arc oxidation process is as follows:
Current density is 0.6-1.5A/dm2；Ceiling voltage is 320-420V；Duty ratio is 10-30%；Frequency is 500-
1000Hz；Positive and negative frequency ratio is 1:3.Oxidation cycle is set as 3-10 minutes.
The first workpiece and second workpiece are subjected to differential arc oxidation respectively according to the above experiment condition.
Microarc oxidation solution for handling the first workpiece matches:
Film forming agent: silicate 8g/l；
PH value adjustment agent: 6g/l；
Auxiliary film former: sodium fluoride 5g/l；
Solution pH value: 12；
Temperature: 25 DEG C.
Wherein, electrical parameter condition when the first workpiece differential arc oxidation:
Current density: 0.7A/dm2；
Ceiling voltage: 360V；
Duty ratio: 20%；
Frequency: 600Hz；
Positive and negative frequency ratio: 1:3；
Oxidation cycle: 3 minutes.
After the completion of differential arc oxidation, same measurement plane is taken on the first workpiece, 5 different locations on it measure thickness
And calculating average value is 5um, then carries out a series of performance test.
Test result is as follows: salt spray test result reaches 9 grades or more；Coating grid test result is preferable；Scratch resistance performance is surveyed
Test result is preferable；High temperature stores burn-in test, the as a result variation without appearance and feel；Hydrolysis storage test, as a result without color and
The variation of feel；Chemical-resistant resistance experimental results are preferable.
Thus the first workpiece after obtaining differential arc oxidation.
Microarc oxidation solution for handling second workpiece matches:
Film forming agent: silicate 15g/l；
PH value adjustment agent: 7g/l；
Auxiliary film former: sodium fluoride 8g/l；
PH value: 12；
Temperature: 25 DEG C.
Wherein, electrical parameter condition when second workpiece differential arc oxidation:
Current density: 0.8A/dm2；
Ceiling voltage: 410V；
Duty ratio: 20%；
Frequency: 650Hz；
Positive and negative frequency ratio: 1:3；
Oxidation cycle: 6 minutes.
After the completion of differential arc oxidation, same measurement plane is taken on second workpiece, 5 different locations on it measure thickness
And calculating average value is 6.5um, then carries out a series of performance test.
Test result is as follows: salt spray test result reaches 9 grades or more；Coating grid test result is preferable；Scratch resistance performance is surveyed
Test result is preferable；High temperature stores burn-in test, the as a result variation without appearance and feel；Hydrolysis storage test, as a result without color and
The variation of feel；Chemical-resistant resistance experimental results are preferable.
Thus the second workpiece after obtaining differential arc oxidation.
Then obtained first workpiece and the second workpiece differential arc oxidation is carried out respectively to test.
Referring to Fig. 1, Fig. 1 is schematically shown as differential arc oxidation film layer flow chart.
Firstly, being configured to microarc oxidation solution.The formula for removing differential arc oxidation medicament of the invention be lactic acid, a- amino acid,
At least one of citric acid, sodium phytate, adipic acid, concentration 2-5g/L, solvent are deionized waters.
The present embodiment selects the sodium phytate of 5g/l, prepares deionized water 5L, and the temperature of deionized water is controlled at 25-28 DEG C.
25 DEG C are heated to, the sodium phytate that 5g/l is added stirs evenly, and stands 15 minutes.
Differential arc oxidation medicament is gone to take off except the method for micro-arc oxidation films is as follows using above-mentioned:
S101: workpiece is placed on and described goes to react a period of time in differential arc oxidation film layer medicament；
S102: constantly scrubbing in reaction process at the differential arc oxidation film layer of the workpiece, it is made to remove differential arc oxidation with described
Film layer medicament sufficiently reacts；
S103: after the reaction time arrives, the differential arc oxidation film layer of the workpiece is stripped；
S104: the workpiece is post-processed；
Wherein, the workpiece by micro-arc oxidation treatment and has micro-arc oxidation films.
Optionally, the reaction time in S101 is 3 minutes.
Optionally, the scrub differential arc oxidation film layer in S102 and stripping differential arc oxidation film layer and can make in step 103
It is handled with capillary copper brush.
Optionally, after the reaction time in S103 arrives, observe that the differential arc oxidation film layer of the workpiece is become from canescence
Dark-grey black.Prove that differential arc oxidation film layer is sufficiently reacted with differential arc oxidation film layer medicament is removed.
Optionally, the post-processing in S104 refers to for the first workpiece and second workpiece to be put into ultrasonic pure water slot and clean,
The first workpiece and second workpiece will be toasted under conditions of 120 DEG C later.
At this point, the first workpiece and second workpiece differential arc oxidation film layer are all removed completely, expose the original of magnesium alloy materials
Color.Therefore, it goes differential arc oxidation chemicals treatment that there is the workpiece of micro-arc oxidation films using of the invention, the differential of the arc can be restored it
State before oxidation.
Finally, the first workpiece and second workpiece are carried out differential arc oxidation again respectively, the first workpiece after differential arc oxidation and
The performance test results of second workpiece are consistent with the performance test results after previous differential arc oxidation.
Wherein, when using concentration to go differential arc oxidation medicament to handle for the present invention of 2-3g/l, differential arc oxidation film layer
The removal time than use in above-described embodiment concentration for 5g/l remove micro-arc oxidation films used in the time it is longer, differential of the arc oxygen
The removal effect for changing film is same as the previously described embodiments.
Wherein, the mode for taking above-described embodiment, select the lactic acid of 2-5g/L, a- amino acid, citric acid, sodium phytate, oneself
At least one of diacid can remove differential arc oxidation film layer.Wherein, single selection sodium phytate or citric acid and sodium phytate
Mixture removal effect it is best.
Of the invention to go differential arc oxidation medicament to the less pollution of environment, when operation, has no irritating odor.It is described to go the differential of the arc
Oxidating chemicals can also be used directly on food, such as meat, can play the role of freshness-keeping and color protection.
It should be pointed out that the present invention is not limited to the above embodiments, any person skilled in the art is based on this
Inventive technique scheme both falls within protection of the invention to any simple modification, equivalent change and modification made by above-described embodiment
In range.
Claims (7)
1. one kind removes differential arc oxidation film layer medicament, which is characterized in that with densimeter comprising:
At least one of lactic acid, a- amino acid, citric acid, sodium phytate, adipic acid, 2-5g/L；
Solvent is deionized water.
2. according to claim 1 remove differential arc oxidation film layer medicament, which is characterized in that the temperature of the deionized water is
25-28℃。
3. a kind of use the method for going differential arc oxidation film layer medicament to carry out differential arc oxidation film layer as claimed in claim 1 or 2,
It is characterised in that it includes steps are as follows:
(1) workpiece is placed on and described goes to react a period of time in differential arc oxidation film layer medicament；
(2) it is constantly scrubbed in reaction process at the differential arc oxidation film layer of the workpiece, it is made to remove differential arc oxidation film layer medicine with described
Agent is sufficiently reacted；
(3) after the reaction time arrives, the differential arc oxidation film layer of the workpiece is stripped；
(4) workpiece is post-processed；
Wherein, the workpiece by micro-arc oxidation treatment and has micro-arc oxidation films.
4. the method according to claim 3 for removing differential arc oxidation film layer, which is characterized in that the reaction in the step (1)
Time is 3 minutes.
5. the method according to claim 3 for removing differential arc oxidation film layer, which is characterized in that the scrub in the step (2)
Capillary copper brush can be used to be handled for the differential arc oxidation film layer that strips in differential arc oxidation film layer and step (3).
6. the method according to claim 3 for removing differential arc oxidation film layer, which is characterized in that described anti-in the step (3)
Become dark-grey black to the rear workpiece differential arc oxidation film layer from canescence between seasonable.
7. the method according to claim 3 for removing differential arc oxidation film layer, which is characterized in that the rear place in the step (4)
Reason is to wash with water the workpiece, then 120 DEG C at a temperature of toasted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778217.9A CN109423673A (en) | 2017-09-01 | 2017-09-01 | Go differential arc oxidation film layer medicament and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778217.9A CN109423673A (en) | 2017-09-01 | 2017-09-01 | Go differential arc oxidation film layer medicament and its method |
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| Publication Number | Publication Date |
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| CN109423673A true CN109423673A (en) | 2019-03-05 |
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| CN201710778217.9A Pending CN109423673A (en) | 2017-09-01 | 2017-09-01 | Go differential arc oxidation film layer medicament and its method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440496A (en) * | 2008-12-29 | 2009-05-27 | 长春奥普光电技术股份有限公司 | Film stripping solution for stripping titanium alloy oxidation film layer |
| CN102719832A (en) * | 2012-06-26 | 2012-10-10 | 南通优尼科化工有限公司 | Environment-friendly rust inhibitor |
| CN103079328A (en) * | 2012-12-31 | 2013-05-01 | 云南航天工业有限公司 | Dielectric barrier discharge electrode and manufacture method of dielectric barrier discharge electrode |
| CN106498413A (en) * | 2016-12-07 | 2017-03-15 | 青岛巨能管道设备有限公司 | A kind of acid rust remover |
| CN106835155A (en) * | 2017-04-17 | 2017-06-13 | 周恩虎 | A kind of surface cleaner of metal material |
-
2017
- 2017-09-01 CN CN201710778217.9A patent/CN109423673A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440496A (en) * | 2008-12-29 | 2009-05-27 | 长春奥普光电技术股份有限公司 | Film stripping solution for stripping titanium alloy oxidation film layer |
| CN102719832A (en) * | 2012-06-26 | 2012-10-10 | 南通优尼科化工有限公司 | Environment-friendly rust inhibitor |
| CN103079328A (en) * | 2012-12-31 | 2013-05-01 | 云南航天工业有限公司 | Dielectric barrier discharge electrode and manufacture method of dielectric barrier discharge electrode |
| CN106498413A (en) * | 2016-12-07 | 2017-03-15 | 青岛巨能管道设备有限公司 | A kind of acid rust remover |
| CN106835155A (en) * | 2017-04-17 | 2017-06-13 | 周恩虎 | A kind of surface cleaner of metal material |
Non-Patent Citations (1)
| Title |
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| 李锦妍 等: ""镁合金微弧氧化膜层退除工艺"", 《表面技术》 * |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190902 Address after: 243000 No. 1430 Huxi Southwest Road, Ma'anshan Economic and Technological Development Zone, Anhui Province Applicant after: Huafu Precision Technology (Ma'anshan) Co., Ltd. Address before: Suzhou City, Jiangsu province 215300 Eagle Kunshan Road Development Zone No. 66 Applicant before: Kunshan Han Ding Feinmetall GmbH |
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Application publication date: 20190305 |
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