EP0902105A1 - Revêtement multicouche antiadhérent à dureté améliorée pour support en aluminium, articles et ustensiles culinaires comportant ce revêtement - Google Patents
Revêtement multicouche antiadhérent à dureté améliorée pour support en aluminium, articles et ustensiles culinaires comportant ce revêtement Download PDFInfo
- 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
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Classifications
-
- 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.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Cookers (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
- la figure 1 est un schéma de l'installation permettant de réaliser une couche d'alumine dure sur un support en aluminium;
- la figure 2 est une vue en coupe du revêtement dur antiadhérent selon l'invention.
Composants | Couche 8 % en poids | Couche 9 % en poids | Couche 10 % en poids |
Sol de Silice précipité à 30% d'extrait sec en solution aqueuse SNOWTEX C.30 | 10 - 30 | 0 | 0 |
Polytétrafluoroéthylène à 60% d'extrait sec dispersion aqueuse | 20 - 50 | 80 - 90 | 80 - 90 |
Perfluoroalcoxy à 50% extrait sec dispersion aqueuse (PFA 6900 HOECHST) | 0 - 20 | 0 | 0 |
Paillettes de mica recouvertes dioxyde de Titane | 0 | 0 à 3 | 0 à 3 |
Pigments minéraux Oxyde de fer ou noir de carbone | 0 à 5 | 0 à 0,5 | 0 |
Emulsion d'agents d'étalement à 15% extrait sec comportant environ 5 - 10% de copolymères acryliques | 0 à 15 | 10 - 20 | 10 - 20 |
Résine polyamide-imide en solution aqueuse à 12% d'extrait sec | 0 - 40 | 0 | 0 |
Claims (7)
- Revêtement multicouche antiadhérent à dureté améliorée pour support en aluminium (3), caractérisé en ce qu'il comprend les couches suivantes: une première couche dure (6) à base d'alumine réalisée par oxydation anodique du support en aluminium (3) plongé dans une solution alcaline (2), en appliquant sur ce support des micro arcs au moyen d'un courant et d'une différence de potentiel élevés, une deuxième couche (8) à base de polytétrafluoréthylène et d'agents chimiques constituant un primaire d'accrochage pour une ou plusieurs couches (9, 10) de finition à base de polytétrafluoréthylène.
- Revêtement conforme à la revendication 1, caractérisé en ce que la première couche dure (6) est constituée d'alumine α et d'alumine γ recouverte d'une couche superficielle (7) de mullite.
- Revêtement conforme à l'une des revendications 1 ou 2, caractérisé en ce que la première couche dure (6) a une épaisseur comprise entre 5 et 100 microns.
- Revêtement, conforme à l'une des revendications 1 à 3, caractérisé en ce que la deuxième couche de primaire d'accrochage (8) et la ou les couches de finition (9, 10) à base de polytétrafluoréthylène présentent une épaisseur comprise entre 5 et 50 microns.
- Revêtement conforme à l'une des revendications 1 à 4, caractérisé en ce que la première couche dure (6, 7) à base d'alumine est polie après application de la couche primaire d'accrochage.
- Article en aluminium ou en alliage d'aluminium comportant un revêtement conforme à l'une des revendications 1 à 5.
- Ustensile culinaire en aluminium ou alliage d'aluminium comportant un revêtement conforme à l'une des revendications 1 à 5.
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 (fr) | 1999-03-17 |
EP0902105B1 EP0902105B1 (fr) | 2003-12-03 |
Family
ID=9510930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98402174A Expired - Lifetime EP0902105B1 (fr) | 1997-09-10 | 1998-09-02 | Revêtement multicouche antiadhérent à dureté améliorée pour support en aluminium, articles et ustensiles culinaires comportant ce revêtement |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0902105B1 (fr) |
JP (1) | JP3881461B2 (fr) |
CA (1) | CA2246215C (fr) |
DE (1) | DE69820181T2 (fr) |
ES (1) | ES2212236T3 (fr) |
FR (1) | FR2768158B1 (fr) |
TR (1) | TR199801803A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009062815A2 (fr) * | 2007-11-16 | 2009-05-22 | BSH Bosch und Siemens Hausgeräte GmbH | Composants structurels traités pour un appareil de cuisson |
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)
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 (fr) * | 2009-09-04 | 2017-09-20 | Meyer Intellectual Properties Limited | Batterie de cuise en cuivre à revêtement anodisé |
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)
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 (fr) * | 1992-10-23 | 1994-04-27 | Meyer Manufacturing Co., Ltd | Ustensile de cuisson et procédé pour sa modification |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8923302D0 (en) * | 1989-10-16 | 1989-12-06 | Meyer Manuf Co Ltd | Cookware |
-
1997
- 1997-09-10 FR FR9711242A patent/FR2768158B1/fr not_active Expired - Fee Related
-
1998
- 1998-09-02 EP EP98402174A patent/EP0902105B1/fr not_active Expired - Lifetime
- 1998-09-02 CA CA 2246215 patent/CA2246215C/fr not_active Expired - Fee Related
- 1998-09-02 ES ES98402174T patent/ES2212236T3/es not_active Expired - Lifetime
- 1998-09-02 DE DE1998620181 patent/DE69820181T2/de not_active Expired - Fee Related
- 1998-09-10 JP JP25720398A patent/JP3881461B2/ja not_active Expired - Fee Related
- 1998-09-10 TR TR1998/01803A patent/TR199801803A1/xx unknown
Patent Citations (3)
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 (fr) * | 1992-10-23 | 1994-04-27 | Meyer Manufacturing Co., Ltd | Ustensile de cuisson et procédé pour sa modification |
WO1997003231A1 (fr) * | 1995-07-11 | 1997-01-30 | FEDOROVA, Ludmila Petrovna | Revetement d'une fine couche ceramique et procede de production |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009062815A2 (fr) * | 2007-11-16 | 2009-05-22 | BSH Bosch und Siemens Hausgeräte GmbH | Composants structurels traités pour un appareil de cuisson |
WO2009062815A3 (fr) * | 2007-11-16 | 2010-03-11 | BSH Bosch und Siemens Hausgeräte GmbH | Composants structurels traités pour un appareil de cuisson |
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 (fr) | 2012-05-16 | 2016-08-24 | Seb S.A. | Procédé d'obtention d'un récipient de cuisson comportant une face extérieure anodisée colorée électrochimiquement |
Also Published As
Publication number | Publication date |
---|---|
DE69820181D1 (de) | 2004-01-15 |
ES2212236T3 (es) | 2004-07-16 |
TR199801803A1 (xx) | 1999-03-22 |
FR2768158B1 (fr) | 2001-06-01 |
JP3881461B2 (ja) | 2007-02-14 |
CA2246215C (fr) | 2007-05-08 |
EP0902105B1 (fr) | 2003-12-03 |
FR2768158A1 (fr) | 1999-03-12 |
JPH11137440A (ja) | 1999-05-25 |
CA2246215A1 (fr) | 1999-03-10 |
DE69820181T2 (de) | 2004-09-23 |
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