CN2748478Y - Device for quick production of anodic oxide film on aluminum hub - Google Patents
Device for quick production of anodic oxide film on aluminum hub Download PDFInfo
- Publication number
- CN2748478Y CN2748478Y CN 200420109628 CN200420109628U CN2748478Y CN 2748478 Y CN2748478 Y CN 2748478Y CN 200420109628 CN200420109628 CN 200420109628 CN 200420109628 U CN200420109628 U CN 200420109628U CN 2748478 Y CN2748478 Y CN 2748478Y
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- anode
- oxide film
- auxiliary cathode
- anodic oxide
- hub
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Abstract
The utility model relates to a device for quick production of an anodic oxide film on an aluminum hub. The utility model is characterized in that an aluminum-hub is hung at the upper part of a shell, the aluminum-hub is an anode, the sulfuric acid of 15-30% is the electrolyte which can be sprayed out from a plurality of nozzles on the pipeline at the two sides of the anode, the electrolyte can be continuously sprayed on the anode after passing through the assistant cathode in order to form an anodic oxide film. The voltage between the anode and the assistant cathode is 20-30V, the current density on the anode is 3-5A/dm< 2 >, and the temperature of the electrolyte is 20-30 degrees C. The utility model has the advantages that the film forming speed of the anodic oxide film is 1.0-2.2 mu m per minute. The thickness of the anodic oxide film is 1-4 um m, the corrosion resistance is superior to the chemical oxidation film. The current density of the anodic oxidation is 3-5A/dm< 2 >, and is increased by 3-5 times in order to satisfy the production requirements of the rapid forming of the anodic oxide film before coating the aluminum-hub.
Description
Technical field
The utility model relates to the equipment of the anodic oxidation treatment before a kind of aluminium or the application of aluminium wheel hub, particularly a kind of equipment for preparing anode oxide film on the aluminium wheel hub fast.
Background technology
For improving the erosion resistance of Al-alloy products, before the Al-alloy products application, must carry out oxide treatment, on Al-alloy products, form layer oxide film.Originally, people adopt chromic salt chemistry method for oxidation, obtain oxide film on Al-alloy products, and thickness is less than 4 μ m, and the quality softness is not wear-resisting; There is the people in treatment soln, to add chemical reagent such as containing chromic acid and potassium bichromate subsequently, obtains oxide film, improve its thickness with spraying method.The defective of such scheme is that the sexavalent chrome in the chromic salt has toxicity, is unfavorable for environment protection.
In order to eliminate chromic harmful effect, adopt the seventies in 20th century chemical conversion of complete Chrome-free to handle scheme, with chromic acid, nitric acid, boric acid is that basic components prepares oxide film on Al-alloy products, improves ADHESION OF PAINTS, and uses on aluminium pop can.But erosion resistance and tack to coating require can't apply than higher automobile industry and construction industry.Adopt the eighties in 20th century titanium phosphate-zirconium phosphate solution to generate oxide film, use properties increases, but still can not reach service requirements fully, 100% adopt the Chrome-free conversion film to the aluminium pot industry of the mid-90 Europe, but the application aspect the building aluminium is still less than 25%; In order to solve the oxide treatment problem before construction industry aluminium and the application of automobile industry aluminium, in Chrome-free chemical conversion solution, add organic component, as silane, cerate etc., this new chromium-free treatment technology is among the exploitation at present, and this treatment process can't satisfy the requirement for preparing anode oxide film before construction industry aluminium and the application of automobile industry aluminium so far.
Summary of the invention
The purpose of this utility model is to provide a kind of equipment for preparing anode oxide film on the aluminium wheel hub fast, sulfuric acid with 15～30% is electrolytic solution, nozzle from the pipeline that is installed in the auxiliary cathode outside sprays, passing auxiliary cathode continuously is injected on the aluminium wheel hub, on the aluminium wheel hub, form the anode oxide film that one deck meets service requirements, solved the technical barrier that on the aluminium wheel hub, prepares anode oxide film fast.
A kind of equipment that on the aluminium wheel hub, prepares anode oxide film fast, comprise housing 1, the reservoir 2 of electrolytic solution is housed, well heater 3, pipeline 4, pump 5, anode 6, auxiliary cathode 7 is characterized in that: with the aluminium wheel hub is anode 6, hang and be positioned at the top of housing 1 by hook, auxiliary cathode 7 is arranged in the both sides of anode 6, is positioned on the pipeline 4 in auxiliary cathode 7 outsides a plurality of nozzles 8 are housed, and the electrolytic solution in the reservoir 2 is delivered to the nozzle place by pump 5 and pipeline 4, after the electrolyte cross auxiliary cathode 7 of nozzle 8 ejections, continuously be injected on the anode 6, be respectively equipped with vent fan 9 and flow deflector 10 in the above and below of anode 6; Spacing between nozzle 8 and the anode 6 is 250～300mm, and the spacing between auxiliary cathode 7 and the anode 6 is 100mm, and the voltage between auxiliary cathode 7 and the anode 6 is 20～30V, is electrolytic solution with 15～30% sulfuric acid, and its working temperature is 20～30 ℃.Well heater 3, auxiliary cathode 7, vent fan 9, flow deflector 10 are fixed on the housing 1.
For adapting to requirements of large-scale production, this equipment can adopt jet-type stretched wire structure for conveying, be divided into several surface treatment intervals, workpiece in each interval moves at the uniform velocity, the both sides of workpiece dispose corresponding auxiliary cathode respectively, nozzle, filming condition is identical with such scheme, uses the anode oxide film continuous automatic production that this suite of equipment is realized the aluminium wheel hub.
With prior art relatively, outstanding advantage of the present utility model is: 1) the anode oxide film film forming speed is per minute 1.0～2.2 μ m, and is higher 4～8 times than the film forming speed of routine; 2) the anodic oxidation film thickness is 1～4 μ m, and erosion resistance is better than chemical oxide film, and neutral salt spray test reached more than 400 hours; 3) oxidation current density is 3～5A/dm
2, improve 3～5 times, can satisfy the preceding suitability for industrialized production requirement that forms anode oxide film fast of Al-alloy products application.
Description of drawings
Fig. 1 is the device structure synoptic diagram for preparing anode oxide film on the aluminium wheel hub fast.
Embodiment
Embodiment 1:
A kind of equipment that on the aluminium wheel hub, prepares anode oxide film fast, as shown in Figure 1, with the aluminium wheel hub is anode 6, hang and be positioned at the top of housing 1 by hook, auxiliary cathode 7 is arranged in the both sides of anode 6, be positioned on the pipeline 4 in auxiliary cathode 7 outsides a plurality of nozzles 8 are housed, electrolytic solution in the reservoir 2 is delivered to the nozzle place by pump 5 and pipeline 4, after the electrolyte cross auxiliary cathode 7 of nozzle 8 ejections, continuously be injected on the anode 6, be respectively equipped with vent fan 9 and flow deflector 10 in the above and below of anode 6; Spacing between nozzle 8 and the anode 6 is 250mm, spacing between auxiliary cathode 7 and the anode 6 is 100mm, and the voltage between auxiliary cathode 7 and the anode 6 is 20, and auxiliary cathode 7 adopts the titanium net that is coated with plumbic oxide, with 15% sulfuric acid is electrolytic solution, and its working temperature is 20 ℃.This equipment of application, the anode oxide film that forms on the aluminium wheel hub meets practical requirement.
Embodiment 2:
A kind of equipment that on the aluminium wheel hub, prepares anode oxide film fast, with the aluminium wheel hub is anode 6, hang and be positioned at the top of housing 1 by hook, auxiliary cathode 7 is arranged in the both sides of anode 6, be positioned on the pipeline 4 in auxiliary cathode 7 outsides a plurality of nozzles 8 are housed, electrolytic solution in the reservoir 2 is delivered to the nozzle place by pump 5 and pipeline 4, after the electrolyte cross auxiliary cathode 7 of nozzle 8 ejections, continuously be injected on the anode 6, be respectively equipped with vent fan 9 and flow deflector 10 in the above and below of anode 6; Spacing between nozzle 8 and the anode 6 is 300mm, spacing between auxiliary cathode 7 and the anode 6 is 100mm, and the voltage between auxiliary cathode 7 and the anode 6 is 30V, and auxiliary cathode 7 adopts the titanium net that is coated with plumbic oxide, with 30% sulfuric acid is electrolytic solution, and its working temperature is 30 ℃.This equipment of application, the anode oxide film that forms on the aluminium wheel hub meets practical requirement.
Claims (2)
1. quick equipment of preparation anode oxide film on the aluminium wheel hub, comprise housing (1), the reservoir (2) of electrolytic solution is housed, well heater (3), pipeline (4), pump (5), anode (6), auxiliary cathode (7), it is characterized in that: with the aluminium wheel hub is anode (6), hang and be positioned at the top of housing (1) by hook, auxiliary cathode (7) is arranged in the both sides of anode (6), is positioned on the pipeline (4) in auxiliary cathode (7) outside a plurality of nozzles (8) are housed, and the electrolytic solution in the reservoir (2) is delivered to the nozzle place by pump (5) and pipeline (4), after the electrolyte cross auxiliary cathode (7) of nozzle (8) ejection, continuously be injected on the anode (6), be respectively equipped with vent fan (9) and flow deflector (10) in the above and below of anode (6).
2. equipment according to claim 1, it is characterized in that: the spacing between nozzle (8) and the anode (6) is 250～300mm, spacing between auxiliary cathode (7) and the anode (6) is 100mm, voltage between auxiliary cathode (7) and the anode (6) is 20～30V, with 15～30% sulfuric acid is electrolytic solution, and its working temperature is 20～30 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109628 CN2748478Y (en) | 2004-11-05 | 2004-11-05 | Device for quick production of anodic oxide film on aluminum hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109628 CN2748478Y (en) | 2004-11-05 | 2004-11-05 | Device for quick production of anodic oxide film on aluminum hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748478Y true CN2748478Y (en) | 2005-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109628 Expired - Fee Related CN2748478Y (en) | 2004-11-05 | 2004-11-05 | Device for quick production of anodic oxide film on aluminum hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748478Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313668A (en) * | 2014-09-30 | 2015-01-28 | 苏州芯航元电子科技有限公司 | Electrochemical treatment trough for electron production wire |
| CN104726918A (en) * | 2015-03-09 | 2015-06-24 | 张小可 | Spray-type nonferrous metal surface treatment technique and device |
| CN106757256A (en) * | 2016-11-11 | 2017-05-31 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation trough aluminium ion and retrieval of sulfuric acid and use pulse power energy conserving system and technique instead |
| CN106757257A (en) * | 2016-11-11 | 2017-05-31 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation trough aluminium ion and retrieval of sulfuric acid and shortening oxidation pole span energy conserving system and technique |
-
2004
- 2004-11-05 CN CN 200420109628 patent/CN2748478Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313668A (en) * | 2014-09-30 | 2015-01-28 | 苏州芯航元电子科技有限公司 | Electrochemical treatment trough for electron production wire |
| CN104726918A (en) * | 2015-03-09 | 2015-06-24 | 张小可 | Spray-type nonferrous metal surface treatment technique and device |
| CN106757256A (en) * | 2016-11-11 | 2017-05-31 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation trough aluminium ion and retrieval of sulfuric acid and use pulse power energy conserving system and technique instead |
| CN106757257A (en) * | 2016-11-11 | 2017-05-31 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation trough aluminium ion and retrieval of sulfuric acid and shortening oxidation pole span energy conserving system and technique |
| CN106757257B (en) * | 2016-11-11 | 2018-07-06 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation trough aluminium ion and retrieval of sulfuric acid and shortening oxidation pole span energy conserving system and technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051228 Termination date: 20091207 |