CN101245467A - Stripping liquid and stripping method for stripping titanium and titanium alloy anodized film - Google Patents
Stripping liquid and stripping method for stripping titanium and titanium alloy anodized film Download PDFInfo
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- CN101245467A CN101245467A CN 200810102476 CN200810102476A CN101245467A CN 101245467 A CN101245467 A CN 101245467A CN 200810102476 CN200810102476 CN 200810102476 CN 200810102476 A CN200810102476 A CN 200810102476A CN 101245467 A CN101245467 A CN 101245467A
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- film
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- moves back
- stripping
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Abstract
The invention discloses a film removing liquid used for removing anodizing film from titanium and titanium alloys and a film-removing method thereof. The film-removing liquid consists of H2O2 with 30percent concentration and alkaline substances. The alkaline substances comprise sodium hydroxide (NaOH) and/or potassium hydroxide (KOH). 100L of the film-removing liquid needs 1-20L of hydrogen peroxide and 200-8,000g/L of alkaline substances; the ratio of weight portions of NaOH and KOH in the alkaline substances is 10:3-6. The film-removing process contains no poisonous and harmful substances such as hydrofluoric acid (HF), etc. and is a safe and environment friendly film-removing method, which can meet environmental safety requirements completely.
Description
Technical field
The present invention relates to a kind of method of removing the matrix surface zone of oxidation, more particularly say, be meant a kind of method that adopts nontoxic treatment solution the titanium or titanium alloy matrix to be soaked removing oxide layer.
Background technology
The titanium or titanium alloy anode oxidation membrane is a kind of chemical conversion film, and this rete mainly is made of titanyl compound.Because some accidental factor, cause not meeting specification of quality and produce substandard products as dress extension, temperature control etc. in anode oxidation process, the rete of this substandard product must be stripped, and anodic oxidation once more.At present, all contain hydrofluoric acid HF in the stripping solution of titanium or titanium alloy anode oxidation membrane, move back membrane method as the chemistry among the HB/Z 347-2002.HF can react with the oxide compound of titanium or titanium alloy and make rete stripping, but HF has intense stimulus and corrodibility to skin, and HF also can cause serious poisoning through skin absorption, and HF generally all can with nitric acid HNO
3The associating use can produce nitrogen protoxide NO, nitrogen peroxide NO
2Deng toxic gas.In the acid stripping of this kind liquid, hydrogen H easily infiltrates in the titanium alloy, causes hydrogen embrittlement.
Summary of the invention
The purpose of this invention is to provide a kind of easy to operate, the stripping method of the simple titanium or titanium alloy anode oxidation membrane of technology.Move back the defective that film liquid has overcome contain in the existing titanium or titanium alloy anode oxidation membrane poisonous, objectionable impurities what stripping was adopted in the technology.Waste liquid environmentally safe after simultaneously should stripping liquid handling is a kind of green, safety move back membrane method.
The present invention be a kind of be used to strip the titanium or titanium alloy anode oxide film move back film liquid, by oxydol H
2O
2Form with alkaline matter, described alkaline matter is sodium hydroxide NaOH and/or potassium hydroxide KOH; Consumption is that 100L moves back required hydrogen peroxide 1～20L in the film liquid, required alkaline matter 200～8000g/L; The weight part ratio of sodium hydroxide and potassium hydroxide is 10: 3～6 in the described alkaline matter.Wherein, the concentration of hydrogen peroxide is 30%.
Adopt the method that film liquid moves back film of moving back of the present invention, be with the titanium or titanium alloy that contains anode oxide film put into 20～95 ℃ move back film liquid, and take out after under alr mode, handling 2～30min, use deionized water rinsing; Exemplar behind deionized water rinsing can adopt blower to dry up or natural air drying.
The film liquid that moves back of the present invention is used 30% concentration oxydol H
2O
2Environmentally harmful hydrofluoric acid HF removes anode oxide film with the combination replacement of alkaline matter, is a kind of environment-friendly type treatment solution.It is simple, easy to operate that the present invention moves back membrane process, and can strip the anode oxidation membrane of titanium or titanium alloy fully, do not influence the anodic oxidation once more of moving back titanium or titanium alloy behind the film again.And whole process poisonous, objectionable impurities such as hydrofluoric acid containing not, compliance with environmental protection requirements.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Of the present invention be used to strip the titanium or titanium alloy anode oxide film move back film liquid by 30% concentration oxydol H
2O
2Form with alkaline matter, described alkaline matter is sodium hydroxide NaOH and/or potassium hydroxide KOH.Promptly moving back film liquid A is made up of 30% concentration hydrogen peroxide and sodium hydroxide; Moving back film liquid B is made up of 30% concentration hydrogen peroxide, sodium hydroxide and potassium hydroxide; Moving back film liquid C is made up of 30% concentration hydrogen peroxide and potassium hydroxide.Consumption is: 100L moves back required 30% concentration hydrogen peroxide, 1～20L, required alkaline matter 200～8000g/L in the film liquid.
In the present invention, consumption (weight part) ratio of sodium hydroxide and potassium hydroxide is 10: 3～6 in the described alkaline matter.
Of the present invention move back membrane method be with the titanium or titanium alloy that contains anode oxide film put into 20～95 ℃ move back film liquid, and take out after under alr mode, handling 2～30min, get final product for 3～5 times with deionized water rinsing.Exemplar that perhaps will be behind deionized water rinsing adopts that blower dries up, dries in the air naturally etc.Titanium or titanium alloy through moving back after film liquid is handled is adopted om observation, and the anode oxide film more than 95% is stripped.
Described alr mode can be stirrings such as magnetic agitation, air compression stirring.
With adopting the titanium or titanium alloy after the inventive method is handled to carry out anodic oxidation plated film once more, all can go up film, and quality is better.
Embodiment 1:Move back film with moving back film liquid A
5L moves back 400ml 30% concentration oxydol H among the film liquid A
2O
2, 10g sodium hydroxide NaOH.
The TB6 titanium alloy that will contain anode oxide film is put into and is moved back film liquid A, and A to 80 ℃ of film liquid is moved back in heating, behind the magnetic agitation 10min, uses deionized water rinsing, dries naturally.Stripped with the anode oxide film of TB6 titanium alloy more than 95% after the om observation processing.
Embodiment 2:Move back film with moving back film liquid B
5L moves back 600ml 30% concentration oxydol H among the film liquid B
2O
2, 10g sodium hydroxide NaOH and 5g potassium hydroxide KOH.
The TC4 titanium alloy that will contain anode oxide film is put into and is moved back film liquid B, and B to 40 ℃ of film liquid is moved back in heating, behind the magnetic agitation 30min, uses deionized water rinsing, dries up with blower.Stripped with the anode oxide film of TC4 titanium alloy more than 95% after the om observation processing.
Embodiment 3:Move back film with moving back film liquid C
5L moves back 200ml 30% concentration oxydol H among the film liquid C
2O
2, 40g potassium hydroxide KOH.
The TB6 titanium alloy that will contain anode oxide film is put into and is moved back film liquid C, and C to 50 ℃ of film liquid is moved back in heating, behind the magnetic agitation 10min, uses deionized water rinsing, dries naturally.Stripped with the anode oxide film of TB6 titanium alloy more than 95% after the om observation processing.
Embodiment 4:Move back film with moving back film liquid A
5L moves back 500ml 30% concentration oxydol H among the film liquid A
2O
2, 15g sodium hydroxide NaOH.
The titanium bulk that will contain the purity 99.9% of anode oxide film is put into and is moved back film liquid A, and A to 60 ℃ of film liquid is moved back in heating, behind the magnetic agitation 15min, uses deionized water rinsing, dries up with blower.Stripped with the anode oxide film of titanium bulk more than 95% after the om observation processing.
Claims (7)
1, a kind of be used to strip the titanium or titanium alloy anode oxide film move back film liquid, it is characterized in that: by oxydol H
2O
2Form with alkaline matter, described alkaline matter is sodium hydroxide NaOH and/or potassium hydroxide KOH; Consumption is that 100L moves back required hydrogen peroxide 1～20L in the film liquid, required alkaline matter 200～8000g/L.
2, the film liquid that moves back according to claim 1, it is characterized in that: the weight part ratio of sodium hydroxide and potassium hydroxide is 10: 3～6 in the described alkaline matter.
3, the film liquid that moves back according to claim 1, it is characterized in that: the concentration of described hydrogen peroxide is 30%.
4, adopt the method that film liquid moves back film of moving back as claimed in claim 1, it is characterized in that: be with the titanium or titanium alloy that contains anode oxide film put into 20～95 ℃ move back film liquid, and after handling 2～30min under the alr mode, take out, use deionized water rinsing.
5, the membrane method that moves back according to claim 4 is characterized in that: alr mode is that magnetic agitation, air compression are stirred.
6, the membrane method that moves back according to claim 4 is characterized in that: the exemplar behind deionized water rinsing adopts blower to dry up.
7, the membrane method that moves back according to claim 4, it is characterized in that: the exemplar behind deionized water rinsing dries naturally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101024760A CN101245467B (en) | 2008-03-21 | 2008-03-21 | Stripping liquid and stripping method for stripping titanium and titanium alloy anodized film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101024760A CN101245467B (en) | 2008-03-21 | 2008-03-21 | Stripping liquid and stripping method for stripping titanium and titanium alloy anodized film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101245467A true CN101245467A (en) | 2008-08-20 |
| CN101245467B CN101245467B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101024760A Expired - Fee Related CN101245467B (en) | 2008-03-21 | 2008-03-21 | Stripping liquid and stripping method for stripping titanium and titanium alloy anodized film |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560514A (en) * | 2012-01-16 | 2012-07-11 | 南昌航空大学 | Faintly acid suspension liquid for removing anodic oxide film of titanium and titanium alloy |
| CN102586791A (en) * | 2012-02-13 | 2012-07-18 | 江西洪都航空工业集团有限责任公司 | Efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members |
| CN103014735A (en) * | 2012-12-04 | 2013-04-03 | 北京航空航天大学 | Film stripping method for stripping titanium alloy anode oxide film |
| CN103397351A (en) * | 2013-07-24 | 2013-11-20 | 励福实业（江门）贵金属有限公司 | Automatic degolding production device and method and degolding water used by same |
| CN103526218A (en) * | 2013-10-24 | 2014-01-22 | 南昌航空大学 | Aging method of titanium alloy anodic oxidation activation and film peeling two-in-one solution |
| CN103966643A (en) * | 2014-04-24 | 2014-08-06 | 大连理工大学 | Method for preparing titanium-alloy super-hydrophobic surface with low roughness |
| CN115245920A (en) * | 2021-04-28 | 2022-10-28 | 潍坊华光光电子有限公司 | Cleaning method for semiconductor laser coating clamp |
| CN115369412A (en) * | 2022-08-31 | 2022-11-22 | 光洋新材料科技(昆山)有限公司 | Method for removing oxide layer on surface of pure titanium workpiece |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260872B (en) * | 2011-07-29 | 2012-11-14 | 沈阳大学 | Method for removing hard nitride reaction film |
-
2008
- 2008-03-21 CN CN2008101024760A patent/CN101245467B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560514A (en) * | 2012-01-16 | 2012-07-11 | 南昌航空大学 | Faintly acid suspension liquid for removing anodic oxide film of titanium and titanium alloy |
| CN102586791A (en) * | 2012-02-13 | 2012-07-18 | 江西洪都航空工业集团有限责任公司 | Efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members |
| CN102586791B (en) * | 2012-02-13 | 2013-07-10 | 江西洪都航空工业集团有限责任公司 | Efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members |
| CN103014735A (en) * | 2012-12-04 | 2013-04-03 | 北京航空航天大学 | Film stripping method for stripping titanium alloy anode oxide film |
| CN103397351A (en) * | 2013-07-24 | 2013-11-20 | 励福实业（江门）贵金属有限公司 | Automatic degolding production device and method and degolding water used by same |
| CN103397351B (en) * | 2013-07-24 | 2016-04-06 | 励福(江门)环保科技股份有限公司 | The degold water of automatic degold production equipment, method and use |
| CN103526218A (en) * | 2013-10-24 | 2014-01-22 | 南昌航空大学 | Aging method of titanium alloy anodic oxidation activation and film peeling two-in-one solution |
| CN103966643A (en) * | 2014-04-24 | 2014-08-06 | 大连理工大学 | Method for preparing titanium-alloy super-hydrophobic surface with low roughness |
| CN103966643B (en) * | 2014-04-24 | 2016-08-24 | 大连理工大学 | A kind of preparation method of the titanium alloy super-hydrophobic surface of low roughness |
| CN115245920A (en) * | 2021-04-28 | 2022-10-28 | 潍坊华光光电子有限公司 | Cleaning method for semiconductor laser coating clamp |
| CN115245920B (en) * | 2021-04-28 | 2024-02-06 | 潍坊华光光电子有限公司 | Cleaning method of semiconductor laser coating clamp |
| CN115369412A (en) * | 2022-08-31 | 2022-11-22 | 光洋新材料科技(昆山)有限公司 | Method for removing oxide layer on surface of pure titanium workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101245467B (en) | 2011-05-04 |
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