EP0902105A1 - Mehrschichtige Antihaft-Beschichtung mit verbesserter Härte für einen Aluminiumträger, Gegenstände und Küchengeräte mit dieser Beschichtung - Google Patents

Mehrschichtige Antihaft-Beschichtung mit verbesserter Härte für einen Aluminiumträger, Gegenstände und Küchengeräte mit dieser Beschichtung Download PDF

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Publication number
EP0902105A1
EP0902105A1 EP98402174A EP98402174A EP0902105A1 EP 0902105 A1 EP0902105 A1 EP 0902105A1 EP 98402174 A EP98402174 A EP 98402174A EP 98402174 A EP98402174 A EP 98402174A EP 0902105 A1 EP0902105 A1 EP 0902105A1
Authority
EP
European Patent Office
Prior art keywords
coating
layer
aluminum
alumina
hard
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.)
Granted
Application number
EP98402174A
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English (en)
French (fr)
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EP0902105B1 (de
Inventor
Claudine Gardaz
Jean-Pierre Résidence le Lac Buffard
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.)
SEB SA
Original Assignee
SEB SA
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Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP0902105A1 publication Critical patent/EP0902105A1/de
Application granted granted Critical
Publication of EP0902105B1 publication Critical patent/EP0902105B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • 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
    • 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

Definitions

  • the present invention relates to a coating non-stick multilayer with improved hardness for support made of aluminum or aluminum alloy.
  • the invention also relates to articles of aluminum or aluminum alloy and in particular cooking utensils with a coating according to the invention.
  • Coatings based on polytetrafluoroethylene (PTFE) applied to the interior surface and / or aluminum cooking utensils have the disadvantage of being sensitive to scratches and wear.
  • PTFE polytetrafluoroethylene
  • the purpose of the present invention is to achieve non-stick coating for aluminum support having improved resistance to scratching and wear.
  • the multilayer coating non-stick with improved hardness for support in aluminum is characterized in that it comprises the following layers: a first hard layer based alumina produced by anodic oxidation of the support aluminum immersed in an alkaline solution, applying micro arcs to this support by means of a current and a high potential difference, a second layer based on polytetrafluoroethylene and of chemical agents constituting a primer for one or more topcoats based on polytetrafluoroethylene.
  • This layer is composed of ⁇ alumina and ⁇ alumina covered with a surface layer of porous mullite (silico-alumina).
  • This hard layer has the particularity to be much harder and to have resistance to significantly higher wear than the layers alumina obtained by conventional anodization or thermal plasma spraying.
  • Figure 1 shows a container 1 containing an alkaline solution 2 in which an anode is immersed 3 and a cathode 4.
  • Anode 3 is an aluminum support which wants to oxidize the surface.
  • Anode 3 and cathode 4 are connected to a generator 5 allowing to apply between this anode 3 and this cathode, a high potential difference, for example between 500 and 1000 volts.
  • the generator 5 also makes it possible to generate short and high intensity pulses, way of forming micro electric arcs likely to oxidize the surface of the aluminum support 3.
  • This oxidation forms on the surface of the support a hard layer of alumina 6 (see Figure 2).
  • Layer 6 is mainly composed of ⁇ alumina and of a few percentages of ⁇ alumina.
  • mullite 7 (silico-alumina) which is porous.
  • the thickness of the hard layer of alumina 6 can vary between 5 and 100 microns.
  • This layer of alumina has a hardness and much higher wear resistance than those of coatings obtained by conventional anodization or thermal plasma spraying.
  • the hardness of this layer is greater than 1500 vickers while that of the conventional ceramic layers obtained by anodization is at most equal to 450 vickers.
  • a second layer 8 to based on polytetrafluoroethylene and chemical agents to constitute a primer, then one or more two layers 9, 10 of finishing based on polytetrafluoroethylene.
  • Layers 8, 9, 10 can have a total thickness between 5 and 50 microns.
  • compositions of the various layers 8, 9, 10 are given below, by way of examples, in the case of a non-stick coating for cooking utensils.
  • Components Layer 8% by weight Layer 9% by weight Layer 10% by weight Silica Sol precipitated at 30% dry extract in aqueous solution SNOWTEX C.30 10 - 30 0 0
  • Mineral pigments Iron oxide or carbon black 0 to 5 0 to 0.5 0
  • Emulsion of spreading agents at 15% dry extract comprising approximately 5 - 10% of acrylic copolymers 0 to 15 10 - 20 10 - 20 Polyamide-imide resin in 12% aqueous solution of dry extract 0 - 40
  • This invention is particularly intended for nonstick coating of cookware but also applies to any item you want create a sliding surface (for example a iron soleplate) having excellent hardness and wear resistant.
EP98402174A 1997-09-10 1998-09-02 Mehrschichtige Antihaft-Beschichtung mit verbesserter Härte für einen Aluminiumträger, Gegenstände und Küchengeräte mit dieser Beschichtung Expired - Lifetime EP0902105B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9711242 1997-09-10
FR9711242A FR2768158B1 (fr) 1997-09-10 1997-09-10 Revetement de couche antiadherent a durete amelioree pour support en aluminium, articles et ustensiles culinaires comportant ce revetement

Publications (2)

Publication Number Publication Date
EP0902105A1 true EP0902105A1 (de) 1999-03-17
EP0902105B1 EP0902105B1 (de) 2003-12-03

Family

ID=9510930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98402174A Expired - Lifetime EP0902105B1 (de) 1997-09-10 1998-09-02 Mehrschichtige Antihaft-Beschichtung mit verbesserter Härte für einen Aluminiumträger, Gegenstände und Küchengeräte mit dieser Beschichtung

Country Status (7)

Country Link
EP (1) EP0902105B1 (de)
JP (1) JP3881461B2 (de)
CA (1) CA2246215C (de)
DE (1) DE69820181T2 (de)
ES (1) ES2212236T3 (de)
FR (1) FR2768158B1 (de)
TR (1) TR199801803A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009062815A2 (en) * 2007-11-16 2009-05-22 BSH Bosch und Siemens Hausgeräte GmbH Treated structural components for a cooking appliance
WO2012066253A1 (fr) 2010-11-19 2012-05-24 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee dure coloree
ES2394703R1 (es) * 2010-12-22 2013-04-19 Bsh Electrodomesticos Espana Dispositivo de sujeción de soporte de producto de cocción
WO2013068681A1 (fr) 2011-11-07 2013-05-16 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee dure coloree
WO2013132185A1 (fr) 2012-03-07 2013-09-12 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee dure coloree
WO2013171408A1 (fr) 2012-05-16 2013-11-21 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee coloree electrochimiquement

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807071B1 (fr) 2000-03-28 2002-11-15 Dja Dodane Jean Et Associes Revetement anti-adherent ceramo-metallique pour ustensiles culinaires
KR100524045B1 (ko) * 2002-06-26 2005-10-27 주식회사 알파크린테크 마이크로 아크 산화 코팅용 자동 제어장치 및 그 방법
US7964085B1 (en) 2002-11-25 2011-06-21 Applied Materials, Inc. Electrochemical removal of tantalum-containing materials
US6919012B1 (en) 2003-03-25 2005-07-19 Olimex Group, Inc. Method of making a composite article comprising a ceramic coating
DE102005013670A1 (de) * 2005-03-14 2006-09-21 Decoma (Germany) Gmbh Verfahren zum Behandeln einer Oberfläche
US8617672B2 (en) 2005-07-13 2013-12-31 Applied Materials, Inc. Localized surface annealing of components for substrate processing chambers
US9127362B2 (en) 2005-10-31 2015-09-08 Applied Materials, Inc. Process kit and target for substrate processing chamber
CN101019742B (zh) * 2007-03-23 2010-05-19 严卫星 一种高耐磨的不粘炊具的制作方法
US7942969B2 (en) 2007-05-30 2011-05-17 Applied Materials, Inc. Substrate cleaning chamber and components
FR2923696B1 (fr) 2007-11-16 2012-08-17 Seb Sa Article culinaire comprenant un revetement antiadhesif resistant a la corrosion et a la rayure
SG157239A1 (en) * 2008-05-14 2009-12-29 Fulita Internat Entpr Pte Ltd A process for forming coatings on metallic surfaces
EP2478132B1 (de) * 2009-09-04 2017-09-20 Meyer Intellectual Properties Limited Kochgeschirr aus anodisiertem und kaschiertem kupfer
JP2014005480A (ja) * 2012-06-21 2014-01-16 Naofumi Warabi Ｍａｏ結晶性金属酸化物のホウロウ加工品
CN103963368B (zh) * 2013-02-06 2016-10-05 上海旭奈超贸易有限公司 一种具有氟树脂涂层的铝合金产品
CN107567217B (zh) * 2016-06-30 2019-11-22 比亚迪股份有限公司 一种壳体及其制备方法和应用
CN107567221B (zh) * 2016-06-30 2019-11-22 比亚迪股份有限公司 一种壳体及其制备方法和应用
CN108720621B (zh) * 2017-04-25 2021-08-10 佛山市顺德区美的电热电器制造有限公司 不粘涂层及其制备方法以及锅具和煮食设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027999A1 (de) * 1989-09-04 1991-03-14 Dipsol Chem Verfahren zur bildung eines keramischen films
EP0594374A1 (de) * 1992-10-23 1994-04-27 Meyer Manufacturing Co., Ltd Kochgeschirr und Verfahren zu dessen Ausgestaltung
WO1997003231A1 (fr) * 1995-07-11 1997-01-30 FEDOROVA, Ludmila Petrovna Revetement d'une fine couche ceramique et procede de production

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8923302D0 (en) * 1989-10-16 1989-12-06 Meyer Manuf Co Ltd Cookware

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027999A1 (de) * 1989-09-04 1991-03-14 Dipsol Chem Verfahren zur bildung eines keramischen films
EP0594374A1 (de) * 1992-10-23 1994-04-27 Meyer Manufacturing Co., Ltd Kochgeschirr und Verfahren zu dessen Ausgestaltung
WO1997003231A1 (fr) * 1995-07-11 1997-01-30 FEDOROVA, Ludmila Petrovna Revetement d'une fine couche ceramique et procede de production

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009062815A2 (en) * 2007-11-16 2009-05-22 BSH Bosch und Siemens Hausgeräte GmbH Treated structural components for a cooking appliance
WO2009062815A3 (en) * 2007-11-16 2010-03-11 BSH Bosch und Siemens Hausgeräte GmbH Treated structural components for a cooking appliance
WO2012066253A1 (fr) 2010-11-19 2012-05-24 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee dure coloree
US9976225B2 (en) 2010-11-19 2018-05-22 Seb S.A. Method for obtaining a cooking vessel having a colored, hard, anodized outer surface
ES2394703R1 (es) * 2010-12-22 2013-04-19 Bsh Electrodomesticos Espana Dispositivo de sujeción de soporte de producto de cocción
WO2013068681A1 (fr) 2011-11-07 2013-05-16 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee dure coloree
US10039405B2 (en) 2011-11-07 2018-08-07 Seb S.A. Method for obtaining a cooking vessel having a colored hard anodized outer face
WO2013132185A1 (fr) 2012-03-07 2013-09-12 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee dure coloree
US9714475B2 (en) 2012-03-07 2017-07-25 Seb S.A. Method for obtaining a cooking vessel having a colored hard-anodized outer face
WO2013171408A1 (fr) 2012-05-16 2013-11-21 Seb S.A. Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee coloree electrochimiquement
FR2990615A1 (fr) * 2012-05-16 2013-11-22 Seb Sa Procede d'obtention d'un recipient de cuisson comportant une face exterieure anodisee coloree electrochimiquement
EP3058854A1 (de) 2012-05-16 2016-08-24 Seb S.A. Herstellungsverfahren eines kochbehälters, der eine aussenseite umfasst, die elektrochemisch farbig eloxiert ist

Also Published As

Publication number Publication date
JPH11137440A (ja) 1999-05-25
EP0902105B1 (de) 2003-12-03
CA2246215A1 (en) 1999-03-10
FR2768158A1 (fr) 1999-03-12
JP3881461B2 (ja) 2007-02-14
DE69820181T2 (de) 2004-09-23
DE69820181D1 (de) 2004-01-15
TR199801803A1 (xx) 1999-03-22
ES2212236T3 (es) 2004-07-16
FR2768158B1 (fr) 2001-06-01
CA2246215C (en) 2007-05-08

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