CN107740160A - A kind of pack alloy anode oxidation method - Google Patents
A kind of pack alloy anode oxidation method Download PDFInfo
- Publication number
- CN107740160A CN107740160A CN201711067880.4A CN201711067880A CN107740160A CN 107740160 A CN107740160 A CN 107740160A CN 201711067880 A CN201711067880 A CN 201711067880A CN 107740160 A CN107740160 A CN 107740160A
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- CN
- China
- Prior art keywords
- pack alloy
- oxidation method
- electrolyte
- anode oxidation
- alloy anode
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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
Abstract
The invention discloses a kind of pack alloy anode oxidation method, step includes a, pack alloy is carried out into oil removing, chemical polishing successively, goes out light processing；B, electrolyte is prepared, component is：Sulfuric acid, Al3+, lignosulfonate, lactic acid, sulfosalicylic acid, Kathon CG, accelerator, deionized water；C, using the pack alloy that step a is obtained as anode pickling in the electrolytic solution, stereotype makees negative electrode, lead to direct current carry out anodized, oxidation processes are cleaned after terminating to pack alloy, and are dried, and are produced.Lactic acid, sulfosalicylic acid are with the addition of in the electrolyte of anode oxidation method of the present invention, enable to electrolyte stable, so that oxidation rate is uniform, accelerator and the Kathon CG of film forming are added in addition, make the aluminum oxide film even compact to be formed, no hole and pit, film layer is thicker, and hardness is high, wearability and rotproofness greatly improve.
Description
Technical field
The present invention relates to the technical field of surface of aluminium alloy, more particularly to a kind of pack alloy anodic oxidation side
Method.
Background technology
Anode processing is a kind of widely used process for treating surface, and it is a kind of table used already in electrochemistry
Face treatment technology, anode processing are generally used for：A, corrosion resistance is increased；B, abrasion performance is increased；C, ground and application are improved
Adherence；Insulating surface is provided D,；E, radiate；F, polishing and the surface being machined are protected；G, improve in outward appearance etc..
Being applied at present the anodized seen on the market in aluminium, aluminum alloy plate materials or extrusion section bar product more, and
The die casting of aluminium is recently using more and more extensive, such as radiator, the product such as automobile fastener, but by aluminium alloy compression casting material institute
Relatively more containing metallic element, such as the peculiar metal ingredient of copper, silicon, iron causes the metal structure heterogeneity of die casting, causes aluminium die casting
It is extremely difficult that the uniform sample of color is obtained after the processing of part surface anode, and yield limits widely using for it than relatively low.
Dense oxidation film can be formed on pack alloy surface by being badly in need of providing one kind, improve the rotproofness, resistance to of aluminium alloy
The anode oxidation method of mill property.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of pack alloy anode oxidation method solve tradition
Oxide-film compactness that anode oxidation method is formed, the defects of wearability and uniformity be not good enough.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of pack alloy anode oxidation method, step include
Pack alloy is carried out to oil removing, chemical polishing successively, go out light processing a,；
B, electrolyte is prepared, component is：
C, using the pack alloy that step a is obtained as anode pickling in the electrolytic solution, stereotype makees negative electrode, and logical direct current enters
Row anodized, oxidation processes are cleaned after terminating to pack alloy, and are dried, and are produced.
Further improvement is that the preferred ingredient of the electrolyte is：
Further improvement is that the Al3+One or more in aluminum sulfate, aluminium chloride, aluminium carbonate.
Further improvement is that the anodized condition is 15-30 DEG C, 30-45s, current density 2-4A/
dm2。
Further improvement is that the pH value of the electrolyte is 5.5-6.5.
Further improvement is that the chloro- ketone of -4 isothiazoline of 2 methyl -3 of 5- and 2- methyl -4- isothiazolines in the Kathon CG -
Mass ratio between 3- ketone is 4.5-6.2:1.
Further improvement is that the accelerator is selected from sodium methylene bis-naphthalene sulfonate or sodium tetraborate.
The beneficial effects of the invention are as follows：Lactic acid, sulfosalicylic acid are with the addition of in the electrolyte of anode oxidation method, can be made
It is stable to obtain electrolyte so that oxidation rate is uniform, adds accelerator and the Kathon CG of film forming in addition, makes the aluminum oxide film to be formed
Film even compact, no hole and pit, film layer is thicker, and hardness is high, and wearability and rotproofness greatly improve.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of pack alloy anode oxidation method, step include
Pack alloy is carried out to conventional oil removing, chemical polishing successively, go out light processing a,；
B, electrolyte is prepared, component is：Sulfuric acid 90g/L, Al3+3g/L, lignosulfonate 1g/L, lactic acid 30g/L, sulfo group water
Poplar acid 20g/L, Kathon CG 1g/L, accelerator 2g/L, deionized water surplus.Wherein, Al3+From aluminum sulfate.The pH of the electrolyte
It is worth for 5.5；Mass ratio in Kathon CG between the chloro- ketone of -4 isothiazoline of 2 methyl -3 of 5- and MIT is
4.5:1；Accelerator selects sodium methylene bis-naphthalene sulfonate.
C, using the pack alloy that step a is obtained as anode pickling in the electrolytic solution, stereotype makees negative electrode, and logical direct current enters
Row anodized, oxidation processes are cleaned after terminating to pack alloy, and are dried, and are produced.
Embodiment 2
A kind of pack alloy anode oxidation method, step include
Pack alloy is carried out to conventional oil removing, chemical polishing successively, go out light processing a,；
B, electrolyte is prepared, component is：Sulfuric acid 100g/L, Al3+4g/L, lignosulfonate 3g/L, lactic acid 35g/L, sulfo group
Salicylic acid 22g/L, Kathon CG 2g/L, accelerator 5g/L, deionized water surplus.Wherein, Al3+From aluminium chloride.The electrolyte
PH value is 6.0；Mass ratio in Kathon CG between the chloro- ketone of -4 isothiazoline of 2 methyl -3 of 5- and MIT
For 5.3:1；Accelerator is selected from sodium tetraborate.
C, using the pack alloy that step a is obtained as anode pickling in the electrolytic solution, stereotype makees negative electrode, and logical direct current enters
Row anodized, oxidation processes are cleaned after terminating to pack alloy, and are dried, and are produced.
Embodiment 3
A kind of pack alloy anode oxidation method, step include
Pack alloy is carried out to conventional oil removing, chemical polishing successively, go out light processing a,；
B, electrolyte is prepared, component is：Sulfuric acid 110g/L, Al3+5g/L, lignosulfonate 6g/L, lactic acid 40g/L, sulfo group
Salicylic acid 23g/L, Kathon CG 3g/L, accelerator 8g/L, deionized water surplus.Wherein, Al3+From aluminium carbonate.The electrolyte
PH value is 6.5；Mass ratio in Kathon CG between the chloro- ketone of -4 isothiazoline of 2 methyl -3 of 5- and MIT
For 6.2:1；Accelerator is selected from sodium tetraborate.
C, using the pack alloy that step a is obtained as anode pickling in the electrolytic solution, stereotype makees negative electrode, and logical direct current enters
Row anodized, oxidation processes are cleaned after terminating to pack alloy, and are dried, and are produced.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (7)
- A kind of 1. pack alloy anode oxidation method, it is characterised in that：Step includesPack alloy is carried out to oil removing, chemical polishing successively, go out light processing a,；B, electrolyte is prepared, component is：C, using the pack alloy that step a is obtained as anode pickling in the electrolytic solution, stereotype makees negative electrode, lead to direct current carry out sun Pole oxidation processes, oxidation processes are cleaned after terminating to pack alloy, and are dried, and are produced.
- A kind of 2. pack alloy anode oxidation method according to claim 1, it is characterised in that：The electrolyte it is excellent The component is selected to be：
- A kind of 3. pack alloy anode oxidation method according to claim 1, it is characterised in that：The Al3+Carry out bin cure One or more in sour aluminium, aluminium chloride, aluminium carbonate.
- A kind of 4. pack alloy anode oxidation method according to claim 1, it is characterised in that：At the anodic oxidation Manage bar part is 15-30 DEG C, 30-45s, current density 2-4A/dm2。
- A kind of 5. pack alloy anode oxidation method according to claim 1, it is characterised in that：The pH of the electrolyte It is worth for 5.5-6.5.
- A kind of 6. pack alloy anode oxidation method according to claim 1, it is characterised in that：5- in the Kathon CG Mass ratio between the chloro- ketone of -4 isothiazoline of 2 methyl -3 and MIT is 4.5-6.2:1.
- A kind of 7. pack alloy anode oxidation method according to claim 1, it is characterised in that：The accelerator is selected from Sodium methylene bis-naphthalene sulfonate or sodium tetraborate.
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| CN201711067880.4A CN107740160A (en) | 2017-11-03 | 2017-11-03 | A kind of pack alloy anode oxidation method |
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| CN201711067880.4A CN107740160A (en) | 2017-11-03 | 2017-11-03 | A kind of pack alloy anode oxidation method |
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| CN107740160A true CN107740160A (en) | 2018-02-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408974A (en) * | 2019-07-17 | 2019-11-05 | 东莞旭光五金氧化制品有限公司 | A kind of high silicon pack alloy anodic oxidation brilliant black manufacturing process |
Citations (5)
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|---|---|---|---|---|
| JPS5511193A (en) * | 1979-06-25 | 1980-01-25 | Toyo Sash Kk | Electrolytic bath for anodic oxidation coloring of aluminum or aluminum alloy |
| US4526660A (en) * | 1984-02-06 | 1985-07-02 | Garriga Eliseo B | Anodizing method |
| CN103484913A (en) * | 2013-09-16 | 2014-01-01 | 青岛聚蚨源机电有限公司 | Aluminum alloy hard anodic oxidization treating process |
| CN105088309A (en) * | 2015-08-28 | 2015-11-25 | 华南理工大学 | Efficient energy-saving anodic oxidation treatment method for die-cast aluminum alloy |
| CN106757264A (en) * | 2016-11-23 | 2017-05-31 | 南昌航空大学 | A kind of aluminum alloy environment-friendly type temperature anodic oxidation electrolyte wide and method for oxidation |
-
2017
- 2017-11-03 CN CN201711067880.4A patent/CN107740160A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5511193A (en) * | 1979-06-25 | 1980-01-25 | Toyo Sash Kk | Electrolytic bath for anodic oxidation coloring of aluminum or aluminum alloy |
| US4526660A (en) * | 1984-02-06 | 1985-07-02 | Garriga Eliseo B | Anodizing method |
| CN103484913A (en) * | 2013-09-16 | 2014-01-01 | 青岛聚蚨源机电有限公司 | Aluminum alloy hard anodic oxidization treating process |
| CN105088309A (en) * | 2015-08-28 | 2015-11-25 | 华南理工大学 | Efficient energy-saving anodic oxidation treatment method for die-cast aluminum alloy |
| CN106757264A (en) * | 2016-11-23 | 2017-05-31 | 南昌航空大学 | A kind of aluminum alloy environment-friendly type temperature anodic oxidation electrolyte wide and method for oxidation |
Non-Patent Citations (2)
| Title |
|---|
| 张允诚 等: "《电镀手册》", 31 December 2011, 国防工业出版社 * |
| 科教兴国丛书编辑委员会 编: "《工业技术库》", 31 August 1997, 中国三峡出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408974A (en) * | 2019-07-17 | 2019-11-05 | 东莞旭光五金氧化制品有限公司 | A kind of high silicon pack alloy anodic oxidation brilliant black manufacturing process |
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Application publication date: 20180227 |