CN108239777A - A kind of anode oxidation process for lens barrel processing - Google Patents
A kind of anode oxidation process for lens barrel processing Download PDFInfo
- Publication number
- CN108239777A CN108239777A CN201810216646.1A CN201810216646A CN108239777A CN 108239777 A CN108239777 A CN 108239777A CN 201810216646 A CN201810216646 A CN 201810216646A CN 108239777 A CN108239777 A CN 108239777A
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- China
- Prior art keywords
- lens barrel
- anode oxidation
- acid
- oxidation
- oxidation process
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- 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.)
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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
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
-
- 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
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/10—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing organic acids
-
- 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
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/12—Anodising more than once, e.g. in different baths
-
- 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
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
Abstract
The present invention discloses a kind of anode oxidation process for lens barrel processing, and the lens barrel material is aluminium alloy, and anode oxidation process includes the following steps：Step 1：The concentrated sulfuric acid that mass concentration is 98% is added in deionized water, is then added in aluminium powder and is uniformly mixed, adds oxalic acid and adenine corrosion inhibiter, be prepared into anode oxidation treatment liquid；Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；Step 3：Anode oxidation treatment liquid carries out first time anodized to lens barrel made of step 1；Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid；Step 5：It repeats step 3 and carries out second of anodized；Step 6：The lens barrel that step 5 obtains is put into boiling water and is boiled.The present invention can greatly enhance the adhesion strength of the organic complex of aluminum alloy surface, film layer dense uniform, good combination property.
Description
Technical field
The present invention relates to lens barrel colored surfaces processing technology fields, are specifically related to a kind of anodic oxygen for lens barrel processing
Chemical industry skill.
Background technology
The advantages that aluminium alloy proportion is small, specific strength is high, ductility and good corrosion resistance, is commonly used in eyepiece, object lens, amplification
The lens barrel of mirror, field lens etc. makes, and in lens barrel technical process, is handled before dyeing by anode oxidation process, can be in surface shape
Into the colored complex that can be adsorbed, be formed with bondings such as covalent bond or hydrogen bonds, to improve staining efficiency and dyeing glossiness, and carry
For anti-corrosion protection.The adhesion strength that the anode oxidation process of the prior art enables aluminum alloy to the organic complex on surface is generally relatively low,
And it due to containing non-aluminum phase particle in aluminium alloy, differs greatly with the electrochemical behavior of alloy matrix aluminum, be easy to cause anodic oxygen
Local current is concentrated during change, forms film layer part hole defect, reduces the barrier propterty of oxidation film..
Invention content
To solve the above problems, the present invention, which provides, is suitable for one kind of eyepiece, object lens, magnifying glass, field lens etc. for lens barrel
The anodizing process of processing.It is specific as follows：
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 100-120g, aluminium powder 4-6g, oxalic acid 10-20g, glycerine 2-3ml, adenine 0.2-0.4g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 24-26 DEG C to spend, and oxidation current density is 1.6-1.8A/dm2, oxidation voltage 18-20V, anodizing time 50-
60min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature 50-55
DEG C, time 14-16h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 40-60min.
Preferably, it in step 1, counts in parts by weight, the concentrated sulfuric acid 110g, aluminium powder is added in every liter of deionized water
5g, oxalic acid 15g, glycerine 2.5ml, adenine 0.3g.
Preferably, step 3 Anodic Oxidation temperature is 25 DEG C, and oxidation current density is 1.7A/dm2, oxidation
Voltage is 19V, anodizing time 55min.
Preferably, the mass concentration of phosphoric acid is 5% in step 4, and the mass concentration of chromic acid is 2%, the mixing matter of the two
Amount is than being 1：1-1.5, soaking temperature are 52 DEG C, soaking time 15h.
Beneficial effects of the present invention：The present invention can greatly enhance the adhesion strength of the organic complex of aluminum alloy surface, film
Layer dense uniform, good combination property.
Specific embodiment
The present invention is described further below in conjunction with embodiment.
Embodiment 1
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 100-g, aluminium powder 4g, oxalic acid 10g, glycerine 2ml, adenine 0.2g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 24 DEG C to spend, and oxidation current density is 1.6A/dm2, oxidation voltage 18V, anodizing time 50min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature is 50 DEG C, when
Between be 14h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 40min.
Embodiment 2
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 120g, aluminium powder 6g, oxalic acid 20g, glycerine 3ml, adenine 0.4g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 26 DEG C to spend, and oxidation current density is 1.8A/dm2, oxidation voltage 20V, anodizing time 60min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature is 55 DEG C, when
Between be 16h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 60min.
Embodiment 3
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 110g, aluminium powder 5g, oxalic acid 15g, glycerine 2.5ml, adenine 0.3g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 25 DEG C to spend, and oxidation current density is 1.7A/dm2, oxidation voltage 19V, anodizing time 55min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature is 52 DEG C, when
Between be 15h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 50min.
Embodiment 4
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 100g, aluminium powder 5g, oxalic acid 20g, glycerine 3ml, adenine 0.2g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 24 DEG C to spend, and oxidation current density is 1.7A/dm2, oxidation voltage 20V, anodizing time 50min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature is 50 DEG C, when
Between be 15h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 60min.
Embodiment 5
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 120g, aluminium powder 5g, oxalic acid 10g, glycerine 3ml, adenine 0.3g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 26 DEG C to spend, and oxidation current density is 1.7A/dm2, oxidation voltage 18V, anodizing time 60min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature is 55 DEG C, when
Between be 15h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 40min.
Embodiment 6
A kind of anode oxidation process for lens barrel processing, the lens barrel material are aluminium alloy, and anode oxidation process is included such as
Lower step：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 110g, aluminium powder 4g, oxalic acid 20g, glycerine 2.5ml, adenine 0.2g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 25 DEG C to spend, and oxidation current density is 1.6A/dm2, oxidation voltage 20V, anodizing time 55min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature is 52 DEG C, when
Between be 14h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 60min.
In short, the present invention can greatly enhance the adhesion strength of the organic complex of aluminum alloy surface, film layer dense uniform is comprehensive
It is good to close performance.
Claims (4)
1. it is a kind of for lens barrel processing anode oxidation process, which is characterized in that the lens barrel material be aluminium alloy, anodic oxygen
Chemical industry skill includes the following steps：
Step 1：It adds in the concentrated sulfuric acid that mass concentration is 98% in deionized water while stirring, then adds in aluminium powder and be stirred
Uniformly, oxalic acid and adenine corrosion inhibiter are added, is prepared into anode oxidation treatment liquid；It counts in parts by weight, every liter of deionized water
It is middle to add in the concentrated sulfuric acid 100-120g, aluminium powder 4-6g, oxalic acid 10-20g, glycerine 2-3ml, adenine 0.2-0.4g；
Step 2：Lens barrel is deoiled, removes natural oxide film, chemical polishing, washing process；
Step 3：Anode oxidation treatment liquid carries out lens barrel first time anodized, anodic oxidation temperature made of step 1
It is 24-26 DEG C to spend, and oxidation current density is 1.6-1.8A/dm2, oxidation voltage 18-20V, anodizing time 50-
60min；
Step 4：The lens barrel handled through step 3 is impregnated with the mixed solution of phosphoric acid and chromic acid, soaking temperature 50-55
DEG C, time 14-16h；
Step 5：Step 3 will be repeated through step 5 treated lens barrel carry out second of anodized；
Step 6：The lens barrel that step 5 obtains is put into boiling water and boils 40-60min.
2. as described in claim 1 for the anode oxidation process of lens barrel processing, which is characterized in that in step 1, by weight
Number is counted, and the concentrated sulfuric acid 110g, aluminium powder 5g, oxalic acid 15g, glycerine 2.5ml, adenine 0.3g are added in every liter of deionized water.
3. as described in claim 1 for the anode oxidation process of lens barrel processing, which is characterized in that step 3 Anodic Oxidation
Temperature is 25 DEG C, and oxidation current density is 1.7A/dm2, oxidation voltage 19V, anodizing time 55min.
4. as described in claim 1 for the anode oxidation process of lens barrel processing, which is characterized in that the matter of phosphoric acid in step 4
A concentration of 5% is measured, the mass concentration of chromic acid is 2%, and the mixing quality ratio of the two is 1：1-1.5, soaking temperature is 52 DEG C, during immersion
Between be 15h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810216646.1A CN108239777A (en) | 2018-03-15 | 2018-03-15 | A kind of anode oxidation process for lens barrel processing |
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| CN201810216646.1A CN108239777A (en) | 2018-03-15 | 2018-03-15 | A kind of anode oxidation process for lens barrel processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878420A (en) * | 2019-12-18 | 2020-03-13 | 陕西易莱德新材料科技有限公司 | Aluminum alloy anodic oxidation liquid and aluminum alloy surface treatment method |
| CN112376101A (en) * | 2020-10-28 | 2021-02-19 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation liquid |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878420A (en) * | 2019-12-18 | 2020-03-13 | 陕西易莱德新材料科技有限公司 | Aluminum alloy anodic oxidation liquid and aluminum alloy surface treatment method |
| CN112376101A (en) * | 2020-10-28 | 2021-02-19 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation liquid |
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Application publication date: 20180703 |