WO1997005302A1 - Procede de depot de sols dans des couches microporeuses de revetement - Google Patents

Procede de depot de sols dans des couches microporeuses de revetement Download PDF

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Publication number
WO1997005302A1
WO1997005302A1 PCT/DE1996/001188 DE9601188W WO9705302A1 WO 1997005302 A1 WO1997005302 A1 WO 1997005302A1 DE 9601188 W DE9601188 W DE 9601188W WO 9705302 A1 WO9705302 A1 WO 9705302A1
Authority
WO
WIPO (PCT)
Prior art keywords
lyosol
silica
microporous
pores
capillaries
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.)
Ceased
Application number
PCT/DE1996/001188
Other languages
German (de)
English (en)
Inventor
Ulrich Reininghaus
Peter Kurze
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.)
Electro Chemical Engineering GmbH
Original Assignee
Electro Chemical Engineering GmbH
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 Electro Chemical Engineering GmbH filed Critical Electro Chemical Engineering GmbH
Priority to DE19680596A priority Critical patent/DE19680596C1/de
Priority to DE59608600T priority patent/DE59608600D1/de
Priority to EP96922737A priority patent/EP0842309B1/fr
Priority to AU63527/96A priority patent/AU6352796A/en
Priority to AT96922737T priority patent/ATE212075T1/de
Priority to DE29680628U priority patent/DE29680628U1/de
Publication of WO1997005302A1 publication Critical patent/WO1997005302A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C25D11/18—After-treatment, e.g. pore-sealing
    • 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
    • C25D11/30—Anodisation of magnesium or alloys based thereon
    • 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
    • C25D11/024—Anodisation under pulsed or modulated current or potential
    • 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
    • C25D11/026—Anodisation with spark discharge

Definitions

  • aluminum is relatively corrosion-resistant because the metal surface in the air is immediately covered with a 5 to 20 nm thick, firmly adhering and very dense oxide layer which prevents further oxygen access.
  • Magnesium and titanium and their alloys are also protected against further oxidation by a thin oxide layer at normal temperature.
  • the anodically produced coating consists, for example, of a coherent sub-layer (barrier layer) about 0.15 ⁇ m thick and a microporous cover layer, which consists of capillaries perpendicular to the metal of 0.01 to 0.05 ⁇ m (10 - 50 nm) is penetrated at a distance of about 0.3 ⁇ m.
  • the microporous cover layer has an inner surface of about 100 m / g after its production and is very chemically reactive. This high chemical reactivity is caused by active centers, which are formed by OH groups in the near-surface area of the microporous cover layer (see Peri, J.B .: J.Phsy.Chem. 69 (1965), p. 220). With newer methods of anodic oxidation, microporous cover layers down to about 200 ⁇ m can be created on Al materials.
  • Anodic oxidation of magnesium can also be used to produce microporous cover layers which are oxidic in nature and, if appropriate
  • Anodic oxidation of titanium also forms microporous cover layers with different oxidic compositions
  • the pores are of different sizes. They range in size from 10 nm to 30 ⁇ m.
  • Coating film on the corrosion-resistant anodized surface film of aluminum products in which this includes subjected to a sealing treatment of the micropores in the oxide film by immersing them in an aqueous sealing liquid containing dispersed silica and then coating them with a thermosetting acrylic resin.
  • the purpose of this process is to be able to use coating agents with a drying or curing temperature of 140 ° C. or above due to the sealing treatment, in which problems of cracking and insufficient adhesion previously occurred.
  • Oxide films by immersing the aluminum objects in the aqueous sealing liquid containing silica or silicate should also close the micropores so that, for example, sulfuric acid remaining therein can no longer escape; but it was not possible or intends to fill the vertical capillaries with the silica.
  • the aim of the invention is to avoid the corrosion caused by the pores and to produce a stable bond between the microporous oxide cover layer and at least one compound forming an inorganic network.
  • the invention relates to a process for the treatment of microporous top layers produced by anodic oxidation or by plasma-chemical anodic oxidation on objects made of aluminum, magnesium, titanium or their alloys, in the form of silica in the pores or capillaries of the microporous top layer a lyosol is introduced in which the colloidally distributed Si0 2 particles are at least one dimension smaller than the diameter of the pores or capillaries and the introduced and applied silica lyosol is then coagulated or reacted with the cover layer.
  • a lyosol is a colloidal solution in which a solid substance is dispersed in a finely divided form in a liquid.
  • Organosols and hydrosols can also be used for the purposes of the invention, depending on whether it is a suspension of the silica in organic liquids, such as alcohols, preferably C 1 -C 6 -alcohols, or water.
  • organic liquids such as alcohols, preferably C 1 -C 6 -alcohols, or water.
  • the silica lyosol is a silica sol (see Römpp, chemistry lexicon, key words brine and silica sol).
  • the sol In order to achieve an incorporation of the sol into the pores or capillaries, it is introduced according to the invention in a form in which the SiO 2 particles are at least one dimension smaller than that
  • the size of the particles of colloidal silica in the sol is accordingly about 1 to 50 nm, preferably 1 to 10 nm.
  • the particles of the colloidal silica to be introduced are Appropriately as an aqueous and / or organic dispersion.
  • the film formers such as alcohols and / or silanes and / or salts of organic acids, which tend to polymerize or polycondense, are added to the SiO 2 sols.
  • Silica sols suitable for the purposes of the invention are known. They are produced by in situ growth of Si0 2 micro-nuclei and are then present as a concentrated aqueous dispersion of colloidally distributed pore-free amorphous Si0 2 particles. These Si0 2 dispersions generally contain minor amounts of alkali, which negatively charge the surface of the Si0 2 particles. As a result, the particles repel each other and bring about the stability of the solution. Silica sols which are suitable for the purposes of the invention are commercially available, for example, under the name KLEBOSOL. These can also be modified by other film-forming oxides of the third to eighth group of the periodic system of the elements, for example aluminum, indium, zirconium, titanium, iron, nickel and rare earths. Modification with mono- or polyhydric alcohols, eg diethylene glycol, is also possible. The silica lyosols can be produced by in situ growth of Si0 2 micro-nuclei and are then present as a concentrated aqueous dispersion
  • Substances especially alcohols and silanes, are added which form films with the silica.
  • the sols can also contain fillers, corrosion inhibitors, dyes, lubricants, surface-active substances, UV stabilizers in amounts which do not affect the reactivity of the sol with the microporous top layer.
  • Solids concentration of the silica sol is advantageously 15 to 60%, preferably 30 to 50%.
  • Objects with such oxide cover layers are immersed in the lyosol, in particular silica sol, sprayed or painted with them.
  • the introduction can be improved in that the object provided with the oxide layer and immersed in the lyosol changes Exposed to pressure conditions.
  • An impregnation system is suitable for this, in which the air is first removed from the pores or capillaries using a vacuum. Under the action of the vacuum, the lyosol penetrates into the pores and, after the vacuum is released, is pressed into the pores by atmospheric pressure and thus also reaches the bottom of the vertical capillaries of the anodically produced coatings of aluminum or the finest branches of the microporous cover layers on magnesium or titanium materials or on the oxide ceramic layers produced by plasma chemical oxidation.
  • the change from vacuum and pressure, which can also exceed atmospheric pressure, is repeated one or more times if necessary.
  • Devices suitable for introducing the particles into the microporous cover layer of the objects are available, for example, in the form of the Maldaner impregnation system.
  • microporous cover layers such as hard anodized layers or oxide ceramic layers, which are less than 24 hours old, accelerate the incorporation of the silica sol to the bottom of the capillaries and pores by anodic oxidation or by plasma-chemical anodic oxidation.
  • Coagulation of the silica lyosol according to the sol-gel process known per se for the film formation of such brine (Sol-Gel Technology for thin Films, Fibers, Preforms, Electronics, and Specialty Shapes, edited by Lisa Klein, Noyes Publications, S. 50 ff., Sect. 4, Helmut Dislich, Thin Films from the Sol-Gel Process). Coagulation takes place by withdrawing the liquid from the lyosol, in particular the silica sol.
  • This silicate glass layer formed on the surface of the microporous cover layer from the Si0 2 particles is provided with pins protruding vertically into the capillaries of the anodized layer and having a diameter of 10 to 50 nm or in the manner of roots which penetrate the capillaries of other oxide layers, in particular ceramic layers. protrude, firmly anchored in the microporous top layer. That is probably the reason for the high corrosion and scratch resistance.
  • the invention also relates to components made of aluminum,
  • the surface of the microporous cover layer is preferably also covered with a film of these gels and connected to the gels in the pores or capillaries.
  • magnesium casting alloys of the ASTM designation are also suitable for the purposes of the invention.
  • EP-B-333 084 were treated according to the ORMOCER process in order to fill the capillaries and pores and to seal the surface of the microporous cover layer.
  • a scanning electron micrograph on a cross-section shows that the pores and capillaries are filled with the silicon dioxide formed after the thermal treatment or its reaction products.
  • the outer sealing layer has a thickness of approximately 5 ⁇ m.
  • plates After immersion in soda water glass and subsequent silicification in a CO 2 atmosphere, plates likewise had an approximately 5 ⁇ m thick sealing layer and in the neutral salt spray test mentioned only a service life of approx. 200 hours.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Laminated Bodies (AREA)
  • Saccharide Compounds (AREA)
  • Paints Or Removers (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Materials For Medical Uses (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Chemical Vapour Deposition (AREA)
  • Physical Vapour Deposition (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Ce procédé sert à traiter des couches microporeuses de revêtement déposées par oxydation anodique ou par oxydation anodique chimique au plasma sur des objets en aluminium, magnésium, titane ou leurs alliages. Ce procédé sert à sceller de manière durable la couche microporeuse de revêtement et à protéger ainsi le matériau de base contre la corrosion et l'usure. A cet effet, on introduit dans les pores ou capillaires de la couche microporeuse de revêtement de l'acide silicique sous forme d'un lyosol d'acide silicique dans lequel les particules de SiO2 réparties de manière colloïdale ont au moins une dimension inférieure au diamètre des pores ou capillaires. Le sol ainsi déposé dans les pores est ensuite coagulé ou amené à réagir avec la couche de revêtement.
PCT/DE1996/001188 1995-07-28 1996-07-02 Procede de depot de sols dans des couches microporeuses de revetement Ceased WO1997005302A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19680596A DE19680596C1 (de) 1995-07-28 1996-07-02 Verfahren zur Einlagerung von Solen in mikroporöse Deckschichten auf Gegenständen aus Aluminium, Magnesium, Titan oder deren Legierungen und Gegenstände aus Magnesium, Titan oder deren Legierungen mit Sol-behandelten Deckschichten
DE59608600T DE59608600D1 (de) 1995-07-28 1996-07-02 Verfahren zur einlagerung von solen in mikroporöse deckschichten
EP96922737A EP0842309B1 (fr) 1995-07-28 1996-07-02 Procede de depot de sols dans des couches microporeuses de revetement
AU63527/96A AU6352796A (en) 1995-07-28 1996-07-02 Process for depotsols into microporous coating layers
AT96922737T ATE212075T1 (de) 1995-07-28 1996-07-02 Verfahren zur einlagerung von solen in mikroporöse deckschichten
DE29680628U DE29680628U1 (de) 1995-07-28 1996-07-02 Mikroporöse Deckschichten mit eingelagerten Solen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19527688.4 1995-07-28
DE19527688 1995-07-28

Publications (1)

Publication Number Publication Date
WO1997005302A1 true WO1997005302A1 (fr) 1997-02-13

Family

ID=7768067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/001188 Ceased WO1997005302A1 (fr) 1995-07-28 1996-07-02 Procede de depot de sols dans des couches microporeuses de revetement

Country Status (7)

Country Link
EP (1) EP0842309B1 (fr)
AT (1) ATE212075T1 (fr)
AU (1) AU6352796A (fr)
DE (3) DE59608600D1 (fr)
ES (1) ES2168491T3 (fr)
PT (1) PT842309E (fr)
WO (1) WO1997005302A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999015474A3 (fr) * 1997-09-20 1999-05-27 Bosch Gmbh Robert Materiau composite
EP1231299A4 (fr) * 1999-08-17 2006-08-02 Isle Coat Ltd Revetement de protection composite multifonctions a base d'alliages legers
EP1903124A3 (fr) * 2006-09-22 2009-07-22 Innovent e.V. Technologieentwicklung Procédé de fabrication d'une couche composite à gradient inorganique-inorganique ou inorganique-organique
WO2008152077A3 (fr) * 2007-06-12 2009-11-05 Siemens Aktiengesellschaft Procédé d'introduction de nanoparticules dans une surface d'aluminium oxydée de façon anodique
GB2469115A (en) * 2009-04-03 2010-10-06 Keronite Internat Ltd Process for the enhanced corrosion protection of valve metals
CN102199785A (zh) * 2011-06-29 2011-09-28 上海理工大学 一种钛合金耐磨涂层的微弧氧化溶液及其应用
GB2513575A (en) * 2013-04-29 2014-11-05 Keronite Internat Ltd Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components
CN106435685A (zh) * 2016-09-18 2017-02-22 佛山科学技术学院 铝表面电沉积制备低吸收率与高半球发射率氧化膜的方法
WO2021058916A1 (fr) * 2019-09-27 2021-04-01 Liebherr-Aerospace Toulouse Sas Procede de fabrication d'une pièce resistante au feu d'un systeme de conditionnement d'air et pièce obtenue par un tel procede
US11312107B2 (en) * 2018-09-27 2022-04-26 Apple Inc. Plugging anodic oxides for increased corrosion resistance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011298A1 (de) 2007-03-16 2008-09-18 Süddeutsche Aluminium Manufaktur GmbH Teilpigmentierung einer Deckschicht zur Vermeidung von Interferenzen bei Aluminiumbauteilen oder Aluminium aufweisenden Bauteilen
EP2166200A1 (fr) 2008-09-23 2010-03-24 Franz Rübig & Söhne GmbH & Co. KG Cuvette de ressort de soupape et son procédé de fabrication
DE102017207589A1 (de) * 2017-05-05 2018-11-08 Federal-Mogul Nürnberg GmbH Thermisch isolierende Beschichtung für einen Aluminiumkolben

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR802421A (fr) * 1936-02-26 1936-09-04 Protection du magnésium contre la corrosion par vitrification
US4421789A (en) * 1981-06-30 1983-12-20 Occidental Chemical Corporation Process for treating the surfaces of aluminum heat exchangers
EP0410003A1 (fr) * 1989-02-14 1991-01-30 Sumitomo Electric Industries, Ltd. Fil electrique isole

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959896A (ja) * 1982-09-28 1984-04-05 Nippon Light Metal Co Ltd アルミニウム陽極酸化皮膜を封孔処理する方法
JPS59179798A (ja) * 1983-03-30 1984-10-12 Mitsubishi Heavy Ind Ltd アルミニウム又はその合金部材
JPS61250193A (ja) * 1985-04-26 1986-11-07 Pentel Kk 滑り止め性を有するアルミニウム又はアルミニウム合金成形体の表面処理法
DE3808610A1 (de) * 1988-03-15 1989-09-28 Electro Chem Eng Gmbh Verfahren zur oberflaechenveredelung von magnesium und magnesiumlegierungen
JPH0327043A (ja) * 1989-06-23 1991-02-05 Fuji Photo Film Co Ltd 湿し水不要感光性平版印刷版
JPH04311595A (ja) * 1991-04-08 1992-11-04 Nippon Parkerizing Co Ltd アルミニウムのセラミックコーティング方法
JPH06316787A (ja) * 1993-04-28 1994-11-15 Kojundo Chem Lab Co Ltd アルマイトの表面処理法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR802421A (fr) * 1936-02-26 1936-09-04 Protection du magnésium contre la corrosion par vitrification
US4421789A (en) * 1981-06-30 1983-12-20 Occidental Chemical Corporation Process for treating the surfaces of aluminum heat exchangers
EP0410003A1 (fr) * 1989-02-14 1991-01-30 Sumitomo Electric Industries, Ltd. Fil electrique isole

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999015474A3 (fr) * 1997-09-20 1999-05-27 Bosch Gmbh Robert Materiau composite
EP1231299A4 (fr) * 1999-08-17 2006-08-02 Isle Coat Ltd Revetement de protection composite multifonctions a base d'alliages legers
EP1903124A3 (fr) * 2006-09-22 2009-07-22 Innovent e.V. Technologieentwicklung Procédé de fabrication d'une couche composite à gradient inorganique-inorganique ou inorganique-organique
WO2008152077A3 (fr) * 2007-06-12 2009-11-05 Siemens Aktiengesellschaft Procédé d'introduction de nanoparticules dans une surface d'aluminium oxydée de façon anodique
GB2469115B (en) * 2009-04-03 2013-08-21 Keronite Internat Ltd Process for the enhanced corrosion protection of valve metals
WO2010112914A1 (fr) 2009-04-03 2010-10-07 Keronite International Ltd Procédé de protection renforcée contre la corrosion de métaux de soupapes
GB2469115A (en) * 2009-04-03 2010-10-06 Keronite Internat Ltd Process for the enhanced corrosion protection of valve metals
US9816188B2 (en) 2009-04-03 2017-11-14 Keronite International Limited Process for the enhanced corrosion protection of valve metals
CN102199785A (zh) * 2011-06-29 2011-09-28 上海理工大学 一种钛合金耐磨涂层的微弧氧化溶液及其应用
CN102199785B (zh) * 2011-06-29 2012-12-12 上海理工大学 一种钛合金耐磨涂层的微弧氧化溶液及其应用
GB2513575B (en) * 2013-04-29 2017-05-31 Keronite Int Ltd Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components
US9765440B2 (en) 2013-04-29 2017-09-19 Keronite International Limited Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components
GB2513575A (en) * 2013-04-29 2014-11-05 Keronite Internat Ltd Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components
CN106435685A (zh) * 2016-09-18 2017-02-22 佛山科学技术学院 铝表面电沉积制备低吸收率与高半球发射率氧化膜的方法
US11312107B2 (en) * 2018-09-27 2022-04-26 Apple Inc. Plugging anodic oxides for increased corrosion resistance
WO2021058916A1 (fr) * 2019-09-27 2021-04-01 Liebherr-Aerospace Toulouse Sas Procede de fabrication d'une pièce resistante au feu d'un systeme de conditionnement d'air et pièce obtenue par un tel procede
FR3101361A1 (fr) * 2019-09-27 2021-04-02 Liebherr-Aerospace Toulouse Sas Procede de fabrication d’une pièce resistante au feu d’un systeme de conditionnement d’air et pièce obtenue par un tel procede
US20220372628A1 (en) * 2019-09-27 2022-11-24 Liebherr-Aerospace Toulouse Sas Method for manufacturing a fire-resistant part of an air conditioning system and part produced by such a method
US12428734B2 (en) 2019-09-27 2025-09-30 Liebherr-Aerospace Toulouse Sas Method for manufacturing a fire-resistant part of an air conditioning system and part produced by such a method

Also Published As

Publication number Publication date
EP0842309B1 (fr) 2002-01-16
AU6352796A (en) 1997-02-26
DE19680596C1 (de) 2001-08-23
ES2168491T3 (es) 2002-06-16
DE59608600D1 (de) 2002-02-21
EP0842309A1 (fr) 1998-05-20
DE29680628U1 (de) 1998-11-05
PT842309E (pt) 2002-07-31
EP0842309A4 (fr) 1996-09-30
DE19680596D2 (de) 1997-09-18
ATE212075T1 (de) 2002-02-15

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