EP0106389A1 - Verfahren zur Oberflächenbehandlung von Aluminium - Google Patents

Verfahren zur Oberflächenbehandlung von Aluminium Download PDF

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Publication number
EP0106389A1
EP0106389A1 EP83201327A EP83201327A EP0106389A1 EP 0106389 A1 EP0106389 A1 EP 0106389A1 EP 83201327 A EP83201327 A EP 83201327A EP 83201327 A EP83201327 A EP 83201327A EP 0106389 A1 EP0106389 A1 EP 0106389A1
Authority
EP
European Patent Office
Prior art keywords
ions
zirconium
solution
titanium
phosphate
Prior art date
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.)
Withdrawn
Application number
EP83201327A
Other languages
German (de)
English (en)
French (fr)
Inventor
Klaus Dr. Wittel
Peter Schiefer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Continentale Parker Ste
Continentale Parker SA
Original Assignee
Metallgesellschaft AG
Continentale Parker Ste
Continentale Parker SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG, Continentale Parker Ste, Continentale Parker SA filed Critical Metallgesellschaft AG
Publication of EP0106389A1 publication Critical patent/EP0106389A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical 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
    • C23C22/05Chemical 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
    • C23C22/06Chemical 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
    • C23C22/34Chemical 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 fluorides or complex fluorides
    • C23C22/36Chemical 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 fluorides or complex fluorides containing also phosphates
    • C23C22/361Chemical 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 fluorides or complex fluorides containing also phosphates containing titanium, zirconium or hafnium compounds
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical 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
    • C23C22/05Chemical 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
    • C23C22/06Chemical 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
    • C23C22/34Chemical 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 fluorides or complex fluorides
    • C23C22/36Chemical 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 fluorides or complex fluorides containing also phosphates

Definitions

  • the invention relates to a method for applying conversion coatings on aluminum surfaces by means of solutions which contain titanium and / or zirconium, fluoride and phosphate ions, but are free from nitrate, nitrite and chromium ions and from organic film-forming polymers and tannin.
  • Such methods work e.g. with an aqueous solution containing hexavalent chromium, trivalent chromium, alkali ions and silicon dioxide in certain proportions and coatings for electrical insulation, for corrosion protection and as a primer for paints and the like. (DE-AS 17 69 582).
  • Coatings can also be produced on metal surfaces with the aid of coating compositions which contain a compound of hexavalent chromium and a polymeric organic substance (so-called primer) and are then dried or baked on (AP-PS 197 164).
  • coating compositions which contain a compound of hexavalent chromium and a polymeric organic substance (so-called primer) and are then dried or baked on (AP-PS 197 164).
  • hexavalent chromium treatment fluids it is also known to clean the metal surface, in particular iron, zinc and aluminum, with an acidic aqueous solution, the chromium III ions, phosphate ions and finely divided silica , optionally also contains acetate, maleinate, zinc and / or manganese ions, to wet and dry the solution film (DE-OS 27 11 431).
  • compositions which contain certain amounts of zirconium and / or titanium as well as phosphate and active fluoride (US Pat. No. 4,148,670) or polyacrylic acid or ester and fluozirconic acid, Fluotitanic acid or fluosilicic acid (US Pat. No. 4,191,596) or tannin together with titanium and Fluorine ions (US Pat. No. 4,054,466) or complex fluorides of boron, titanium or zircon together with oxidizing agents, such as sodium metanitrobenzenesuronate (DE-AS 19 33 013).
  • phosphate and active fluoride US Pat. No. 4,148,670
  • polyacrylic acid or ester and fluozirconic acid Fluotitanic acid or fluosilicic acid
  • titanium and Fluorine ions US Pat. No. 4,054,466
  • complex fluorides of boron, titanium or zircon together with oxidizing agents such as sodium metanitrobenzenesuronate (DE-AS 19 33 013)
  • the last-mentioned methods are disadvantageous in that, due to the water-soluble constituents of the coating agent, a rinsing treatment is required, which often leads to wastewater which is difficult to treat or only a comparatively complicated bath monitoring leads to usable results.
  • Coating agents containing tannin sometimes lead to an undesirable discoloration of the treated metal surface. Because of the variety of known tannins, the coating agents are also difficult to reproduce in terms of their effect. Coating agents containing polymers tend to age and become unstable, particularly in the form of concentrates. In particular, a certain incompatibility with subsequently applied organic coatings is also not predictable.
  • the object of the invention is to provide a method for applying conversion coatings on aluminum surfaces which avoids the known, in particular the aforementioned disadvantages, and yet can be carried out simply and without additional effort.
  • the solution can be brought into contact with the aluminum surface in any conventional manner, such as by dipping and then draining, pouring over and spinning off, brushing, spraying using single or dual-substance nozzles, spraying or rolling on with flat or structured rollers in the same or in the opposite direction will.
  • Roll-on processes are particularly suitable because of the comparatively precise dosing of the solution quantities. Applying a solution amount of approx. 3 - 20 ml / m 2 aluminum surface is particularly advantageous. Because of the small amount of water to be evaporated, the amount of solution should be as low as possible.
  • the solution film applied to the aluminum surface can be dried at room temperature.
  • higher temperatures preferably from 50 to 120 ° C., given as the object temperature, should be aimed for.
  • the aluminum surface is brought into contact with a solution in which the molar ratio of phosphate ions to zirconium and / or titanium ions is at most 5.
  • this ensures a perfect layer formation, on the other hand it prevents the sparingly soluble zirconium phosphate from precipitating.
  • the aluminum surfaces are brought into contact with a solution in such a way that a layer weight of 20-200 mg / m 2 results.
  • the aluminum surfaces must be cleaned thoroughly.
  • the cleaning can be done with acidic cleaners based on phosphoric acid or sulfuric acid, which should also contain a surfactant, especially non-ionic type, if necessary also fluoride, or with strongly alkaline cleaners, e.g. with sodium hydroxide solution, condensed phosphate and surfactant.
  • strongly alkaline cleaners e.g. with sodium hydroxide solution, condensed phosphate and surfactant.
  • degreasing can also be carried out with or in addition with halogenated hydrocarbons.
  • Aluminum sheets measuring 100 x 200 mm were cleaned in a strongly alkaline cleaner based on sodium hydroxide solution, condensed phosphate, non-ionic surfactant at 65 ° C. for 15 seconds, thoroughly rinsed with water and freed of excess rinsing water by squeezing rollers.
  • the cleaned aluminum sheets were then immersed in the treatment solution at the reaction temperature for approx. 1 sec guided between grooved rollers or smooth rollers in such a way that 6 or 3 ml of solution film per m 2 of aluminum surface remained.
  • the solution was dried at an object temperature of 80 ° C.
  • the aluminum sheets were subjected to several tests.
  • the aluminum sheets provided with the conversion coating were coated with an epoxy paint (Mobil SHX 2636) and the paint adhesion was tested according to the T-bending test.
  • a second series of aluminum sheets was provided with a gold lacquer and, after the boiling test, subjected to a test for blistering, discoloration and lacquer detachment.
  • a hard PVC film was sealed using a PVC-based heat seal lacquer and the film's adhesion was determined after the peel test.
  • the table below shows the test results with regard to the paint detachment for the T-bending test in percent - based on the bending point.
  • the boiling test consists of first boiling the painted aluminum sheets in deionized water for 3 hours and then assessing the formation of blisters and discoloration.
  • some of the metal sheets are additionally subjected to mechanical stress before the cooking treatment in accordance with the aforementioned T-bending test or in accordance with the impact indentation.
  • the peeling test is characterized in that sheet metal strips or sheet metal strips 200 mm long and 15 mm wide provided with a conversion coating are provided on one side with a sealing wax and then by means of heated press jaws at a contact pressure of 300 Newton / cm 2 , a contact time of 4 sec and a temperature of the preheated press jaws 180 0C with a PVC-film are provided. After three days of storage in water, the loss of adhesion to a sheet not stored in water is determined by pulling off the film and is given in percent. The pull-off speed of the film is 30 mm / min.

Landscapes

  • 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)
  • Application Of Or Painting With Fluid Materials (AREA)
EP83201327A 1982-09-30 1983-09-16 Verfahren zur Oberflächenbehandlung von Aluminium Withdrawn EP0106389A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3236247 1982-09-30
DE19823236247 DE3236247A1 (de) 1982-09-30 1982-09-30 Verfahren zur oberflaechenbehandlung von aluminium

Publications (1)

Publication Number Publication Date
EP0106389A1 true EP0106389A1 (de) 1984-04-25

Family

ID=6174596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201327A Withdrawn EP0106389A1 (de) 1982-09-30 1983-09-16 Verfahren zur Oberflächenbehandlung von Aluminium

Country Status (8)

Country Link
EP (1) EP0106389A1 (ja)
JP (1) JPS5983776A (ja)
AU (1) AU1972083A (ja)
CA (1) CA1199559A (ja)
DE (1) DE3236247A1 (ja)
ES (1) ES526551A0 (ja)
GB (1) GB2131052A (ja)
ZA (1) ZA837238B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699935A1 (fr) * 1991-09-10 1994-07-01 Gibson Chem Ltd Solution de traitement et de revêtement pour surfaces métalliques et procédé de revêtement utilisant une telle solution.
ES2068766A1 (es) * 1992-05-22 1995-04-16 Davidson Textron Inc Sistema para producir piezas de aluminio brillantes
WO1996017977A1 (de) * 1994-12-09 1996-06-13 Metallgesellschaft Aktiengesellschaft Verfahren zum aufbringen von phosphatüberzügen auf metalloberflächen
WO2004046421A1 (en) * 2002-11-15 2004-06-03 Henkel Kommanditgesellschaft Auf Aktien Passivation composition and process for zinciferous and aluminiferous surfaces
DE102016217507A1 (de) 2015-09-15 2017-03-16 Chemetall Gmbh Vorbehandlung von Aluminiumoberflächen mit zirkon- und molybdänhaltigen Zusammensetzungen

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232151A (ja) * 1985-04-04 1986-10-16 東洋製罐株式会社 アルミ製接着缶
US4881975A (en) * 1986-12-23 1989-11-21 Albright & Wilson Limited Products for treating surfaces
CA1333043C (en) * 1988-02-15 1994-11-15 Nippon Paint Co., Ltd. Surface treatment chemical and bath for aluminium and its alloy
JPH0784665B2 (ja) * 1988-03-25 1995-09-13 日本ペイント株式会社 アルミニウムの化成処理方法
GB8828559D0 (en) * 1988-12-07 1989-01-11 Novamax Tech Corp Composition & method for coating metal surfaces
BR9206419A (pt) * 1991-08-30 1995-04-04 Henkel Corp Processo para a produção de um revestimento de conversão protetor.
JPH0748677A (ja) * 1993-07-05 1995-02-21 Nippon Parkerizing Co Ltd アルミdi缶及びぶりきdi缶兼用表面処理液ならびに処理方法
US5603754A (en) * 1993-07-05 1997-02-18 Henkel Corporation Composition and process for treating tinplate and aluminum
JP2828409B2 (ja) * 1994-03-24 1998-11-25 日本パーカライジング株式会社 アルミニウム含有金属材料用表面処理組成物および表面処理方法
JP3315529B2 (ja) * 1994-06-03 2002-08-19 日本パーカライジング株式会社 アルミニウム含有金属材料の表面処理用組成物及び表面処理方法
US5494504A (en) * 1994-09-12 1996-02-27 Ppg Industries, Inc. Liquid rinse conditioner for phosphate conversion coatings
JP2002266080A (ja) * 2001-03-07 2002-09-18 Nippon Paint Co Ltd リン酸塩化成処理液、化成処理方法および化成処理鋼板
JP6295832B2 (ja) * 2014-05-28 2018-03-20 株式会社ブリヂストン アルミ−ゴム複合体及びその製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277644B (de) * 1962-07-03 1968-09-12 Metallgesellschaft Ag Verfahren und Loesungen zum Aufbringen von UEberzuegen auf Titan und dessen Legierungen
DE2701927A1 (de) * 1976-02-09 1977-08-11 Metallgesellschaft Ag Verfahren zur oberflaechenbehandlung von aluminium oder aluminium-legierungen
US4338140A (en) * 1978-02-21 1982-07-06 Hooker Chemicals & Plastics Corp. Coating composition and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1098253A (en) * 1976-04-05 1981-03-31 Timm L. Kelly Zirconium/titanium coating solution for aluminum surfaces
JPS53125238A (en) * 1977-04-09 1978-11-01 Nippon Paint Co Ltd Regenerating method for surface treating liquid for aluminum and its alloy
JPS5424232A (en) * 1977-07-26 1979-02-23 Nippon Packaging Kk Surface treating method of aluminum
US4187127A (en) * 1978-12-07 1980-02-05 Nihon Parkerizing Co., Ltd. Surface processing solution and surface treatment of aluminum or aluminum alloy substrate
NZ195810A (en) * 1979-12-26 1983-07-15 Amchem Prod Acidic aqueous solution forming a corrosion-resistant coating on aluminium
JPS5839232B2 (ja) * 1980-05-12 1983-08-29 日本パ−カライジング株式会社 アルミニウム及びアルミニウム合金表面の皮膜化成処理液

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277644B (de) * 1962-07-03 1968-09-12 Metallgesellschaft Ag Verfahren und Loesungen zum Aufbringen von UEberzuegen auf Titan und dessen Legierungen
DE2701927A1 (de) * 1976-02-09 1977-08-11 Metallgesellschaft Ag Verfahren zur oberflaechenbehandlung von aluminium oder aluminium-legierungen
US4338140A (en) * 1978-02-21 1982-07-06 Hooker Chemicals & Plastics Corp. Coating composition and method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 90, Nr. 26, Juni 1979, Seite 303, Nr. 208761q, Columbus, Ohio, US & JP - A - 79 24 232 (NIHON PARKERIZING CO., LTD.) 23.02.1979 *
CHEMICAL ABSTRACTS, Band 91, Nr. 18, Oktober 1979, Seite 219, Nr. 144331k, Columbus, Ohio, US & JP - A - 79 68 734 (NIHON PARKERIZING CO., LTD.) 02.06.1979 *
CHEMICAL ABSTRACTS, Band 96, Nr. 14, April 1982, Seite 297, Nr. 108886q, Columbus, Ohio, US & JP - A - 81 163 280 (NIHON PARKERIZING CO., LTD.) 15.12.1981 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699935A1 (fr) * 1991-09-10 1994-07-01 Gibson Chem Ltd Solution de traitement et de revêtement pour surfaces métalliques et procédé de revêtement utilisant une telle solution.
ES2068766A1 (es) * 1992-05-22 1995-04-16 Davidson Textron Inc Sistema para producir piezas de aluminio brillantes
WO1996017977A1 (de) * 1994-12-09 1996-06-13 Metallgesellschaft Aktiengesellschaft Verfahren zum aufbringen von phosphatüberzügen auf metalloberflächen
US5904786A (en) * 1994-12-09 1999-05-18 Metallgesellschaft Aktiengesellschaft Method of applying phosphate coatings to metal surfaces
CN1066207C (zh) * 1994-12-09 2001-05-23 金属股份有限公司 在金属表面涂覆磷酸盐涂层的方法
WO2004046421A1 (en) * 2002-11-15 2004-06-03 Henkel Kommanditgesellschaft Auf Aktien Passivation composition and process for zinciferous and aluminiferous surfaces
DE102016217507A1 (de) 2015-09-15 2017-03-16 Chemetall Gmbh Vorbehandlung von Aluminiumoberflächen mit zirkon- und molybdänhaltigen Zusammensetzungen
WO2017046139A1 (de) 2015-09-15 2017-03-23 Chemetall Gmbh Vorbehandlung von aluminiumoberflächen mit zirkon- und molybdänhaltigen zusammensetzungen

Also Published As

Publication number Publication date
GB8326185D0 (en) 1983-11-02
GB2131052A (en) 1984-06-13
DE3236247A1 (de) 1984-04-12
CA1199559A (en) 1986-01-21
ZA837238B (en) 1984-06-27
ES8405447A1 (es) 1984-06-16
JPS5983776A (ja) 1984-05-15
ES526551A0 (es) 1984-06-16
AU1972083A (en) 1984-04-05

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: SCHIEFER, PETER

Inventor name: WITTEL, KLAUS, DR.