CN1643181A - Composition and process for the treatment of metal surfaces - Google Patents
Composition and process for the treatment of metal surfaces Download PDFInfo
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- CN1643181A CN1643181A CNA038058278A CN03805827A CN1643181A CN 1643181 A CN1643181 A CN 1643181A CN A038058278 A CNA038058278 A CN A038058278A CN 03805827 A CN03805827 A CN 03805827A CN 1643181 A CN1643181 A CN 1643181A
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- Prior art keywords
- tungstate
- treatment soln
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- zirconium
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- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
- C23C22/44—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
A method of forming a conversion layer on a metallic surface and a composition usable in the method are provided. The composition is an aqueous solution comprising a source of tungstate ions and a soluble material comprising zirconium. The method provides a conversion coating on a surface that can then be painted or otherwise treated. The conversion coatings of the present invention are minimally affected by heating and/or baking, unlike chromate conversion coatings of the prior art.
Description
Invention field
The present invention relates to a kind of composition and method that is used on the metallic surface, producing conversion coating.Conversion coating of the present invention do not contain chromium usually and can improve the erosion resistance of treated surface and dry organic varnish to the adhesivity of this treated surface.In addition, conversion coating of the present invention seldom be subjected to subsequently heating and/or the influence of baking procedure.The present invention is specially adapted to handle zinc, zinc alloy, aluminium and aluminium alloy, although also can handle steel and other metal.
Background technology
In order to protect metal to make its adhesivity corrosion-resistant and improve the dry organic varnish that applies subsequently as substrate, the various conversion coatings of metallic surface have been advised being fit in the prior art for the purpose that forms coating.This conversion coating comes process metal surfaces by the solution that uses various chemical and produces, this chemical solutions and surface reaction and form needed coating.Transformation coating compound commonly used generally includes phosphoric acid salt and chromic salt.
The use of phosphate conversion coating, particularly the use on steel has for a long time.The simplest phosphate solution comprises the alkali metal phosphate aqueous solution that can produce reaction with iron, aluminium and/or zinc and form phosphate conversion coating.Though phosphate conversion coating can strengthen the erosion resistance of treated surface and the adhesivity of dry organic varnish of coating subsequently really in many application, also needs better effect.
Chromate conversion coatings produces usually than better erosion resistance of phosphate coating and adhesivity.Yet chromate conversion coatings at high temperature can not provide good anti-corrosion and adhesivity.Chromatedsolution generally includes the aqueous solution that contains sexavalence and/or trivalent chromium and other additive.In history, sexavalent chrome produces the chromate conversion coatings of top performance.Yet the improvement in the trivalent chromate technology recently allows trivalent chromate to be equal to mutually on performance with hexavalent chromate.Typical chromate composite and method are disclosed in No. the 5th, 407,749, the U.S. and the 4th, 349, No. 392 patents, and its teaching all is incorporated herein for your guidance.In any case chromium has been confirmed as a kind ofly having quite toxic metal and giving strict control.Consequently, paid very big effort and replaced chromate coating with the coating that does not contain chromium.
Therefore, the object of the present invention is to provide a kind of composition and method that can produce conversion coating on the metallic surface, this coating can provide superior corrosion resistance and to the adhesivity of the organic varnish of drying, and does not contain chromium.In addition, a further object of the present invention is to provide conversion coating on the metallic surface, and this conversion coating seldom is subjected to the influence of postheating and/or baking.Another purpose of the present invention is to be provided for the composition and the method on the surface of process metal surfaces, particularly zinc, zinc alloy, aluminium and aluminium alloy.
Summary of the invention
These and other objects of the present invention can reach by following step: use the compositions-treated metallic surface of containing following substances:
1) a kind of source of tungstate ions; And
2) a kind of zirconic soluble material; And it is dry then or toast this metallic surface.
The present invention is particularly suitable for handling zinc and zinc alloy surface and aluminium and aluminum alloy surface.The inventor finds: preferably the pH value with treatment compositions is adjusted between 2.0 to 7.0.This treatment compositions does not preferably contain chromium ion.
The detailed description of invention
The contriver has advised that a kind of composition and use contain the method for the said composition process metal surfaces of following substances:
1) a kind of source of tungstate ions; And
2) a kind of zirconic soluble material; And it is dry then or toast this metallic surface.
Source of tungstate ions comprises all tungstate, but the most all ortho-tungstic acid salt, metatungstate and para-tungstate, poly-tungstate, assorted poly-tungstate, isopolytungstate, peroxide tungstate and combination thereof.Source inclined to one side or para-tungstate is preferred.The appropriate sources of tungstate ion comprises the tungstate of sodium, potassium, lithium, calcium, cerium, barium, magnesium, strontium, hydrogen and ammonium, ammonium metawolframate, metatungstic acid potassium, metatungstic acid sodium, wolframic acid, sodium wolframate, potassium wolframate and ammonium tungstate.A kind of soluble tungstate salt, for example to use in liquid concentrate and treatment soln be most preferred for ammonium tungstate or potassium wolframate.Its scope of the concentration of tungstate in the composition (calculating with tungsten) should be about 0.01g/l to about 10g/l, and preferably about 0.1g/l is about 1.5g/l extremely, and most preferably is about 1.0g/l.
Said composition also comprises zirconic soluble compound, the preferred fluorinated thing.The suitable example that contains zirconia material includes, but is not limited to zirconium ammonium fluoride, dihydrogen hexafluorozirconate, Potassium Zirconium Fluoride, zirconium sulfate, zirconium carbonate, zirconium nitrate and zirconium phosphate.Dihydrogen hexafluorozirconate is most preferred zirconium-containing compound.Its scope of the concentration of zirconium-containing compound is preferably about 0.01g/l to about 2.0g/l in the composition, and more preferably about 0.05g/l is to about 0.5g/l.
The contriver determines preferably the pH value of treatment compositions to be maintained about 2.0 to about 7.0, more preferably between 2.8 to 7.0.The contriver finds: when in aforementioned range (2.0～7.0) when operating in addition, the corrosion protection that is provided is relatively poor in fact, and pH value is lower than needed in the stability of the preferable range treatment compositions aqueous solution in addition.
Handle to bathe and preferably contain ammonium hydroxide as being used for the neutralizing agent that enriched material reaches the treatment soln that obtains from this enriched material.So that this enriched material can not become unstable, ammonium hydroxide is essential for the paramount pH value of the pH value of regulating liquid concentrate.
The contriver also finds: compare with new bath, the ability that can make this bath produce excellent corrosion resistance of gathering of aluminium improved during treatment compositions was bathed.On the panel of having handled in old processing is bathed, the contriver has realized 1,000 hour anti-brine spray experiment.
Be this purpose, a kind of aluminum soluble salt can be added in the treatment compositions of the present invention.Be applicable to that aluminum soluble salt of the present invention comprises ammonium chloride aluminium, aluminium ammonium sulfate, aluminum nitrate, potassium aluminium sulfate and Tai-Ace S 150.If you are using, this aluminium salt should be present in this bath with 5 to 500ppm concentration (calculating with aluminium) usually, and preferred concentration is (to calculate with aluminium) between 10 to 200ppm.
Generally, the part cleaning of the stand-by present composition being handled is to remove dirt and other surface contamination.Preferably part is carried out deoxidation then and handle in acidic solution, it can remove oxide on surface, then flushing.The proper sourness solution that is used for wrought alloys is 50% salpeter solution, although also can use other acidic solution.By dipping or by spraying, make part contact about 30 seconds with wolframic acid zirconium composition of the present invention then to about 10 minutes time.The scope that preferably treatment compositions maintained about 55 °F to about 180 temperature, most preferably from about 70 °F to about 120 °F.Then, before coating or other processing, the dry and/or baking with part.
Non-essential composition can be added in this treatment compositions, comprise tensio-active agent, promotor, dyestuff, organic polymer, buffer reagent and pH regulator agent.
Further specify the present invention by the following example.It should be considered as illustrating but not with any reason restriction the present invention.
Embodiment 1
Thereby at first metal parts is immersed in 170 the alkaline cleaning solution 10 to 15 minutes and removes its surface contamination with the clean metal part.Employed alkaline cleaning solution is MacDermid TS 40A among this embodiment, and its concentration is 6oz/gal, although also can use other alkaline cleaning solution.Then, part is washed about 2 minutes time.Part is carried out in 50% salpeter solution about 1 minute time of deoxidation at ambient temperature, make the flushing for the second time of its experience then.Part is exposed to the time about 2 to 10 minutes in the conversion coating of the present invention in room temperature to about 125 temperature.Last and the dry and/or baking with the part flushing then.At last, part can be applied or otherwise handles.Table 1 provides a plurality of examples of the processing bath concentration that can be used for solution of the present invention.
The suitable bath concentration of table 1 solution of the present invention
| Composition | Prescription A | Prescription B | Prescription C |
| Wolframic acid, six ammonium salts | ???3.0g/l | ?2.5g/l | ???3.5g/l |
| Dihydrogen hexafluorozirconate | ???3.0g/l | ?2.5g/l | ???3.5g/l |
| Water | Be diluted to 1 liter | Be diluted to 1 liter | Be diluted to 1 liter |
Embodiment 2
By differing temps fired sample panel each 10 minutes, and the result of the panel that relatively applies through chromate conversion coatings, panel result's in the neutral salt spray test that investigation thermal treatment is handled for dipping 5 minutes in the composition of embodiment 1 influence.The results are shown in the table 2.
Table 2 thermal treatment exists for wolframic acid zirconium coating and chromate coating
The comparison of result's influence in the neutral spray test
| Temperature, ℃ | Until the hours that lost efficacy | |
| The wolframic acid zirconium coating | Chromate coating | |
| ????150 | 168 hours | ＜24 hours |
| ????200 | 144 hours | ＜24 hours |
| ????250 | 144 hours | ＜24 hours |
| ????300 | 312 hours | ＜24 hours |
| ????350 | 312 hours | ＜24 hours |
Learn that easily at high temperature, the panel that uses the present composition to handle provides big a lot of corrosion protection than the similar panel that uses chromate conversion coatings to apply.
Embodiment 3
According to MIL-C-81706 and MIL-C-5541, panel that uses zirconium and tungsten solution-treated and the panel that uses chromate conversion coatings to handle are tested side by side.In order to make comparisons, naked aluminum deck is included in this test.To use priming paint and/or coating sprinkling through the panel of handling (or naked aluminium) or give powder coated.According to ASTM D 3359-87 method B (using adhesive tape), make panel stand 2 millimeters cross network/belt stripping tests then through handling (or naked aluminium) to measure the standard test methods of adhesive power.As predict, naked aluminum deck produces consistent adhesion failure.On the other hand, the panel with the coating of wolframic acid zirconium provides the adhesive power lifting that equals or exceeds with the panel of chromate coating.
Embodiment 4
Then, the panel with the coating of wolframic acid zirconium of the present invention is tested side by side with the panel that uses the MIL-C-81706/MIL-C-5541 chromate treating,, after this panel at high temperature being heated or toast, used naked aluminum deck to make comparisons in order to make comparisons.
In this embodiment, before japanning, will be heated to 20 minutes the time of temperature experience of 150 ℃, 200 ℃, 250 ℃, 300 ℃ and 350 ℃ through the panel of handling (or naked aluminium).Use priming paint spraying, japanning then through the panel of handling (or naked aluminium).
Make each panel stand 2 millimeters cross network/belt stripping tests according to ASTM D 3359-87 method B then.The result shows: the adhesivity of the panel of handling with the wolframic acid zirconium promotes and far surpasses naked aluminum deck or promote with the adhesive power of the panel of chromate treating.
Claims (43)
1. a method that forms conversion coating on the metallic surface comprises the steps:
Use contains the aqueous treatment solution process metal surfaces of following substances:
(a) a kind of source of tungstate ions; And
(b) a kind of zirconic soluble material; And
Dry then and/or toast treated metallic surface.
2. method according to claim 1, wherein said aqueous treatment solution also contains ammonium hydroxide.
3. method according to claim 1, wherein said source of tungstate ions is selected from following substances: ortho-tungstic acid salt, metatungstate and para-tungstate, poly-tungstate, assorted poly-tungstate, isopolytungstate, peroxide tungstate and combination thereof.
4. method according to claim 3, wherein said source of tungstate ions are metatungstate or para-tungstate.
5. method according to claim 3, wherein said source of tungstate ions is selected from following substances: the tungstate of sodium, potassium, lithium, calcium, cerium, barium, magnesium, strontium, hydrogen and ammonium.
6. method according to claim 3, wherein said source of tungstate ions is a wolframic acid, six ammonium salts.
7. method according to claim 1, the concentration of tungstate ion is calculated as about 0.01g/l to about 10.0g/l with tungsten in the wherein said treatment soln.
8. method according to claim 7, the concentration of tungstate ion is calculated as about 0.1g/l to about 1.5g/l with tungsten in the wherein said treatment soln.
9. method according to claim 8, the concentration of tungstate ion is calculated as 1.0g/l with tungsten in the wherein said treatment soln.
10. method according to claim 1, wherein said zirconic soluble material is selected from following substances: zirconium ammonium fluoride, dihydrogen hexafluorozirconate, Potassium Zirconium Fluoride, zirconium sulfate, zirconium carbonate, zirconium nitrate and zirconium phosphate.
11. method according to claim 10, wherein said zirconic soluble material is a dihydrogen hexafluorozirconate.
12. method according to claim 1, the concentration of the zirconic soluble material in the wherein said treatment soln are that about 0.01g/l is to about 2.0g/l.
13. method according to claim 12, the concentration of the zirconic soluble material in the wherein said treatment soln are that about 0.05g/l is to about 0.5g/l.
14. method according to claim 1, wherein said aqueous treatment solution also contains a kind of aluminum soluble salt.
15. method according to claim 14, the concentration of wherein said aluminum soluble salt is calculated between 5 to 500ppm with aluminium.
16. method according to claim 1, the temperature of wherein said treatment soln about 55 °F to about 180 scope.
17. method according to claim 16, the temperature of wherein said treatment soln are about 70 °F to about 120 °F.
18. method according to claim 1, the pH value of wherein said treatment soln maintains about 2.8 to about 7.0.
19. method according to claim 1 wherein before using the treatment soln process metal surfaces, cleans part.
20. method according to claim 19 wherein after the cleaning and before using described treatment soln to handle, is carried out deoxidation to the metallic surface and is handled.
21. method according to claim 1, wherein said treatment soln does not contain chromium.
22. method according to claim 1, wherein said treatment soln applies by dipping or by sprinkling.
23. method according to claim 1, wherein said treatment soln also contain at least a material in a kind of tensio-active agent, a kind of promotor, a kind of dyestuff, a kind of organic polymer, a kind of buffer reagent and a kind of pH regulator agent.
24. a water-based transformation coating compound contains a kind of source of tungstate ions and a kind of zirconic soluble material.
25. composition according to claim 24, wherein said aqueous treatment solution also contains ammonium hydroxide.
26. composition according to claim 24, wherein said source of tungstate ions is selected from following substances: ortho-tungstic acid salt, metatungstate and para-tungstate, poly-tungstate, assorted poly-tungstate, isopolytungstate, peroxide tungstate and combination thereof.
27. composition according to claim 26, wherein said source of tungstate ions are metatungstate or para-tungstate.
28. composition according to claim 26, wherein said source of tungstate ions is selected from following substances: the tungstate of sodium, potassium, lithium, calcium, cerium, barium, magnesium, strontium, hydrogen and ammonium.
29. composition according to claim 26, wherein said source of tungstate ions is a wolframic acid, six ammonium salts.
30. composition according to claim 24, the concentration of tungstate ion is calculated as about 0.01g/l to about 10.0g/l with tungsten in the wherein said treatment soln.
31. composition according to claim 30, the concentration of tungstate ion is calculated as about 0.1g/l to about 1.5g/l with tungsten in the wherein said treatment soln.
32. composition according to claim 34, the concentration of tungstate ion is calculated as 1.0g/l with tungsten in the wherein said treatment soln.
33. composition according to claim 24, wherein said zirconic soluble material is selected from following substances: zirconium ammonium fluoride, dihydrogen hexafluorozirconate, Potassium Zirconium Fluoride, zirconium sulfate, zirconium carbonate, zirconium nitrate and zirconium phosphate.
34. composition according to claim 33, wherein said zirconic soluble material is a dihydrogen hexafluorozirconate.
35. composition according to claim 24, the concentration of the zirconic soluble material in the wherein said treatment soln are that about 0.01g/l is to about 2.0g/l.
36. composition according to claim 35, the concentration of the zirconic soluble material in the wherein said treatment soln are that about 0.05g/l is to about 0.5g/l.
37. composition according to claim 24, wherein said aqueous treatment solution also contains a kind of aluminum soluble salt.
38. according to the described composition of claim 37, the concentration of wherein said aluminum soluble salt is calculated between 5 to 500ppm with aluminium.
39. composition according to claim 24, the temperature of wherein said treatment soln about 55 °F to about 180 scope.
40. according to the described composition of claim 39, the temperature of wherein said treatment soln is about 70 °F to about 120 °F.
41. composition according to claim 24, the pH value of wherein said treatment soln maintains about 2.8 to about 7.0.
42. composition according to claim 24, wherein said treatment soln does not contain chromium.
43. composition according to claim 24, wherein said treatment soln also contain at least a material in a kind of tensio-active agent, a kind of promotor, a kind of dyestuff, a kind of organic polymer, a kind of buffer reagent and a kind of pH regulator agent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/099,769 | 2002-03-14 | ||
| US10/099,769 US20030172998A1 (en) | 2002-03-14 | 2002-03-14 | Composition and process for the treatment of metal surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1643181A true CN1643181A (en) | 2005-07-20 |
| CN100378246C CN100378246C (en) | 2008-04-02 |
Family
ID=28039680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038058278A Expired - Fee Related CN100378246C (en) | 2002-03-14 | 2003-02-07 | Composition and process for the treatment of metal surfaces |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20030172998A1 (en) |
| EP (1) | EP1492902A4 (en) |
| JP (1) | JP2005520047A (en) |
| CN (1) | CN100378246C (en) |
| AU (1) | AU2003212949A1 (en) |
| TW (1) | TWI255863B (en) |
| WO (1) | WO2003078682A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369246A (en) * | 2009-03-31 | 2012-03-07 | Prc-迪索托国际公司 | Method for treating and/or coating a substrate with non-chrome materials |
| CN109317382A (en) * | 2018-11-22 | 2019-02-12 | 安徽安铝铝业有限公司 | Technique for surface treatment of aluminium alloy sections |
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| EP3489015A1 (en) * | 2006-09-19 | 2019-05-29 | Swimc Llc | Food and beverage containers and methods of coating |
| JP2008174807A (en) | 2007-01-19 | 2008-07-31 | Nippon Hyomen Kagaku Kk | Chromium-free metal surface treatment liquid |
| US20090123656A1 (en) * | 2007-11-13 | 2009-05-14 | Ernest Long | Composition and method for controlling galvanic corrosion in printed circuit boards |
| US20090242081A1 (en) * | 2008-03-26 | 2009-10-01 | Richard Bauer | Aluminum Treatment Composition |
| US9347134B2 (en) | 2010-06-04 | 2016-05-24 | Prc-Desoto International, Inc. | Corrosion resistant metallate compositions |
| CN102312233B (en) * | 2010-06-29 | 2013-10-30 | 株式会社神户制钢所 | Aluminum alloy plate after surface treatment and manufacturing method thereof |
| KR101362525B1 (en) * | 2010-10-18 | 2014-02-13 | 가부시키가이샤 고베 세이코쇼 | Aluminium alloy plate, bonded body using same and vehicular member |
| CN102586730A (en) | 2011-01-17 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Film-coated part and preparation method thereof |
| TWI426153B (en) * | 2011-01-19 | 2014-02-11 | Hon Hai Prec Ind Co Ltd | Coated article and method for making the same |
| US20140041764A1 (en) * | 2012-08-07 | 2014-02-13 | Roberto Zoboli | Steel Pre-Paint Treatment Composition |
| JP6143431B2 (en) * | 2012-09-20 | 2017-06-07 | 株式会社神戸製鋼所 | Aluminum alloy plate, joined body and automobile member using the same |
| ITMI20122229A1 (en) * | 2012-12-21 | 2014-06-22 | Campagnolo Srl | BICYCLE COMPONENT INCLUDING AN ALUMINUM BODY AND A COMPOSITE BODY, AND METHOD OF MANUFACTURING SUCH A COMPONENT |
| US10435806B2 (en) | 2015-10-12 | 2019-10-08 | Prc-Desoto International, Inc. | Methods for electrolytically depositing pretreatment compositions |
| CN114836745A (en) * | 2022-03-21 | 2022-08-02 | 华南理工大学 | Aluminum alloy neutral zirconium-tungsten conversion solution and preparation method of zirconium-tungsten conversion film on surface of aluminum alloy |
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| US5143562A (en) * | 1991-11-01 | 1992-09-01 | Henkel Corporation | Broadly applicable phosphate conversion coating composition and process |
| JPH05214266A (en) * | 1992-01-31 | 1993-08-24 | Nippon Parkerizing Co Ltd | Self-depositing water-based coating composition |
| US5449415A (en) * | 1993-07-30 | 1995-09-12 | Henkel Corporation | Composition and process for treating metals |
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| WO1997021780A1 (en) * | 1995-12-13 | 1997-06-19 | Henkel Corporation | Hydrophilicizing post-treatment over chromate conversion coating |
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-
2002
- 2002-03-14 US US10/099,769 patent/US20030172998A1/en not_active Abandoned
-
2003
- 2003-02-07 CN CNB038058278A patent/CN100378246C/en not_active Expired - Fee Related
- 2003-02-07 AU AU2003212949A patent/AU2003212949A1/en not_active Abandoned
- 2003-02-07 WO PCT/US2003/003610 patent/WO2003078682A1/en not_active Application Discontinuation
- 2003-02-07 EP EP03708992A patent/EP1492902A4/en not_active Withdrawn
- 2003-02-07 JP JP2003576672A patent/JP2005520047A/en active Pending
- 2003-02-13 TW TW092102988A patent/TWI255863B/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369246A (en) * | 2009-03-31 | 2012-03-07 | Prc-迪索托国际公司 | Method for treating and/or coating a substrate with non-chrome materials |
| CN102369246B (en) * | 2009-03-31 | 2014-07-30 | Prc-迪索托国际公司 | Method for treating and/or coating a substrate with non-chrome materials |
| CN109317382A (en) * | 2018-11-22 | 2019-02-12 | 安徽安铝铝业有限公司 | Technique for surface treatment of aluminium alloy sections |
| CN109317382B (en) * | 2018-11-22 | 2021-10-19 | 安徽安铝铝业有限公司 | Surface treatment process for aluminum alloy section |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1492902A1 (en) | 2005-01-05 |
| EP1492902A4 (en) | 2005-06-15 |
| CN100378246C (en) | 2008-04-02 |
| TW200303934A (en) | 2003-09-16 |
| TWI255863B (en) | 2006-06-01 |
| JP2005520047A (en) | 2005-07-07 |
| AU2003212949A1 (en) | 2003-09-29 |
| US20030172998A1 (en) | 2003-09-18 |
| WO2003078682A1 (en) | 2003-09-25 |
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