EP0786312A1 - Verfahren zur Behandlung einer metallischen Oberfläche und Herstellung eines Kochgeschirrs - Google Patents

Verfahren zur Behandlung einer metallischen Oberfläche und Herstellung eines Kochgeschirrs Download PDF

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Publication number
EP0786312A1
EP0786312A1 EP97400100A EP97400100A EP0786312A1 EP 0786312 A1 EP0786312 A1 EP 0786312A1 EP 97400100 A EP97400100 A EP 97400100A EP 97400100 A EP97400100 A EP 97400100A EP 0786312 A1 EP0786312 A1 EP 0786312A1
Authority
EP
European Patent Office
Prior art keywords
coating
balls
metal
microcavities
billing
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
EP97400100A
Other languages
English (en)
French (fr)
Other versions
EP0786312B1 (de
Inventor
Jérôme Vilon
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
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 SEB SA filed Critical SEB SA
Publication of EP0786312A1 publication Critical patent/EP0786312A1/de
Application granted granted Critical
Publication of EP0786312B1 publication Critical patent/EP0786312B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/005—Vibratory devices, e.g. for generating abrasive blasts by ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
    • B08B7/026—Using sound waves
    • B08B7/028—Using ultrasounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/08—Devices for generating abrasive blasts non-mechanically, e.g. of metallic abrasives by means of a magnetic field or by detonating cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/47—Burnishing
    • Y10T29/479—Burnishing by shot peening or blasting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating

Definitions

  • the present invention relates to a method for treating a metal surface. It also relates to a process for manufacturing a culinary article.
  • microcavities can be formed by chemical attack on the metal.
  • this method has the disadvantage of encrusting sand particles in the microcavities formed in the metal.
  • the object of the present invention is to solve the aforementioned drawbacks by proposing a method for treating a metal surface in which the surface obtained is sufficiently smooth to avoid scratches and clogging by fatty substances.
  • this process is characterized in that in addition: c) the surface is billed by means of balls of small dimensions projected against the surface.
  • the microcavities are crushed at the metal surface.
  • the moving balls bounce off the surface: on each impact with the latter, the balls create an imprint and thus crush the microcavities.
  • the fouling and the scratch sensitivity of this surface are thus greatly limited due to the increase in its hardness and the smoothness thereof.
  • stage c) of billing follows stage b) of coating.
  • Billing of the coating, partial or total, and visible microcavities makes it possible to obtain a surface having a smooth appearance and very little scratching and porous, easily cleaned.
  • the billing of the surface by means of balls of small dimensions makes it possible to reach the areas of uncoated metal surface and having visible microcavities.
  • Milling therefore makes it possible to crush these microcavities located between the coated surface portions.
  • the metal surface is partially coated with polytetrafluoroethylene.
  • the purpose of blasting is thus to crush the visible microcavities and to glaze the coating of polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • the PTFE coating does not lose its non-stick qualities after the billing operation but on the contrary has a smooth and shiny appearance facilitating its cleaning.
  • a method of manufacturing a culinary article from a metal plate is characterized in that the two surfaces of the plate are treated by the treatment method according to the invention, this plate having a surface comprising a continuous coating of polytetrafluoroethylene and another surface comprising a partial coating of polytetrafluoroethylene forming a decoration.
  • the object of the treatment method according to the invention is to treat a metallic surface 1a, 1b, made of aluminum or aluminum alloy for example.
  • a series of microcavities 4 is formed on the surface 1a, 1b.
  • a coating is then applied at least partially to the surface 1a, 1b.
  • the coating can be a non-stick coating.
  • the coating is made of polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • PTFE can be carried out with a roller, with a spray gun or by screen printing, optionally using a screen or mask to protect the uncoated areas of the metal surface 1a.
  • the surfaces 1a, 1b, thus coated are then baked for about 5 minutes, at a temperature of 400-450 ° C.
  • the surface 1a after steps a) and b), has, as illustrated in FIG. 2, areas not coated with widely open microcavities 4, susceptible to clogging very easily.
  • the treatment method further comprises a step c) of billing, implemented in this example on the surface 1a, 1b, already coated.
  • the balls 7 are made of hard metal, such as stainless steel.
  • They have a diameter between 0.5 and 5 mm, so as to make impacts of small dimensions on the surface la.
  • the billing stage has a duration of between 0.5 and 5 seconds.
  • the balls 7 are set in motion under the action of ultrasound emitted by a generator 6.
  • the ultrasonic generator 6 produces ultrasonic waves which vibrate the sonotrode 8 (wave propagating along a vertical axis)
  • the balls 7 placed on the sonotrode 8 are set in motion by ultrasound and are projected onto the surface to be treated.
  • the sonotrode can be of parallelepiped shape.
  • a circular cover 9 is placed on the surface to be treated.
  • the surface presents it with microcavities 4 ′ crushed by the balls 7, as shown in FIG. 4.
  • an aluminum metal plate 1 is used on which the treatment method described above is applied, one of the faces being partially coated. of PTFE to form a decoration, and the other face 1b being entirely coated with PTFE.
  • the disc-shaped plate 1 is then pressed into the shape of a cooking container 10, the surface partially coated with PTFE corresponding to the outside face of the container 10.
  • the billing of the surfaces could also be carried out after the stamping or the flow-turning of the coated metal plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Cookers (AREA)
EP97400100A 1996-01-24 1997-01-17 Verfahren zur Behandlung einer metallischen Oberfläche und Herstellung eines Kochgeschirrs Expired - Lifetime EP0786312B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600799 1996-01-24
FR9600799A FR2743742B1 (fr) 1996-01-24 1996-01-24 Procede de traitement d'une surface metallique et de fabrication d'un article culinaire

Publications (2)

Publication Number Publication Date
EP0786312A1 true EP0786312A1 (de) 1997-07-30
EP0786312B1 EP0786312B1 (de) 2000-06-14

Family

ID=9488417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400100A Expired - Lifetime EP0786312B1 (de) 1996-01-24 1997-01-17 Verfahren zur Behandlung einer metallischen Oberfläche und Herstellung eines Kochgeschirrs

Country Status (4)

Country Link
US (1) US5829116A (de)
EP (1) EP0786312B1 (de)
DE (1) DE69702271T2 (de)
FR (1) FR2743742B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809841A1 (de) * 1998-03-03 1999-09-16 Jana Zschech An eine Dauerwurfvorrichtung gekoppelter Rückgewinner für metallische Medien

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6360423B1 (en) * 1997-12-16 2002-03-26 Clad Metals Llc Stick resistant coating for cookware
US7093340B2 (en) 1997-12-16 2006-08-22 All-Clad Metalcrafters Llc Stick resistant ceramic coating for cookware
US5950470A (en) * 1998-09-09 1999-09-14 United Technologies Corporation Method and apparatus for peening the internal surface of a non-ferromagnetic hollow part
FR2791293B1 (fr) * 1999-03-23 2001-05-18 Sonats Soc Des Nouvelles Appli Dispositifs de traitement de surface par impacts
US6170308B1 (en) * 1999-07-20 2001-01-09 United Technologies Corporation Method for peening the internal surface of a hollow part
FR2801322B1 (fr) * 1999-11-18 2002-02-08 Snecma Procede de grenaillage par ultrasons de surfaces annulaires de grandes dimensions sur des pieces minces
DE10000026A1 (de) * 2000-01-03 2001-07-05 Deckel Maho Gmbh Schutzabdeckung für Werkzeugmaschinen und Verfahren zu deren Herstellung
US7028378B2 (en) * 2000-10-12 2006-04-18 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Method of shot blasting and a machine for implementing such a method
FR2816537B1 (fr) * 2000-11-16 2003-01-17 Snecma Moteurs Procede et installation de grenaillage par ultrasons des alveoles annulaires d'attache d'aubes sur un rotor
FR2816538B1 (fr) 2000-11-16 2003-01-17 Snecma Moteurs Procede pour augmenter la duree de vie des attaches d'aubes sur un rotor
FR2816536B1 (fr) * 2000-11-16 2003-01-17 Snecma Moteurs Procede et dispositif de grenaillage par ultrasons des alveoles "axiales" d'attache des aubes sur un rotor
US20030079346A1 (en) * 2001-10-30 2003-05-01 Dosso Elena Dal Process for diamond covering bodies having essentially a spherical or prismatic shape, being used in jewelry and a machine to carry out said process
DE102004029546A1 (de) * 2004-06-19 2006-01-05 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Oberflächenstrahlen von Gasturbinenschaufeln im Bereich ihrer Schaufelfüße
US20060021410A1 (en) * 2004-07-30 2006-02-02 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Shot, devices, and installations for ultrasonic peening, and parts treated thereby
DE102004059592B4 (de) * 2004-12-10 2014-09-04 MTU Aero Engines AG Verfahren zum Oberflächenstrahlen von Hohlräumen, insbesondere von Hohlräumen an Gasturbinen
EP2034373A4 (de) * 2006-06-08 2013-12-04 Endo Seisakusho Kk Röhre zur fixierung und prozess zu ihrer herstellung
DE102006036519A1 (de) * 2006-08-04 2008-02-07 Mtu Aero Engines Gmbh Deckelelement für eine Sonotrode und Strahlkammeranordnung zum Oberflächenstrahlen von Bauteilen
GB2492831A (en) * 2011-07-14 2013-01-16 Hkpb Scient Ltd Workpiece surface modification during ultrasonic peening
EP3680064B1 (de) * 2014-06-23 2024-08-07 Les Promotions Atlantiques Inc./ Atlantic Promotions Inc. Kochutensil
US20150367481A1 (en) 2014-06-23 2015-12-24 Les Promotions Atlantiques Inc. / Atlantic Promotions Inc. Method of treating a surface of a utensil
CN110421413B (zh) * 2019-05-30 2021-05-14 浙江工业大学 芬顿多域超声加工制备微半球凹模阵列方法及装置
US12303057B2 (en) 2020-04-07 2025-05-20 Zhejiang Bahe Kitchenware Co., Ltd. Physical non-stick pan with convex-concave structure, and manufacturing method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247932A2 (de) * 1986-05-28 1987-12-02 Seb S.A. Behälter, hauptsächlich für Küchenzwecke, der durch Prägen einer verzierten Metallscheibe hergestellt ist
EP0510546A1 (de) * 1991-04-23 1992-10-28 Winfried Heinzel Verfahren zum Beschichten von Haus- und Küchengerätschaften
EP0568322A2 (de) * 1992-05-01 1993-11-03 Meyer Manufacturing Co., Ltd Kochgeschirr und Verfahren zur dessen Gestaltung
WO1995017994A1 (fr) * 1993-12-30 1995-07-06 Teknosen S.A. Procede et dispositif d'ebavurage de pieces mecaniques
US5463916A (en) * 1992-03-13 1995-11-07 Seb S.A. Process for the preparation of a surface for the securement of a coating

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US3705511A (en) * 1969-10-17 1972-12-12 Avco Corp Low penetration ball forming process
US4066817A (en) * 1976-03-10 1978-01-03 The Dexter Corporation Release coating for aluminum and tinplate steel cookware
PL194998A1 (pl) * 1976-12-31 1978-07-03 Politechnika Slaska Im Wincent Sposob przygotowania powierzchni wyrobow ze stopow zelaza,stopow niklu i stopow chromu przed procesem aluminiowania zanurzeniowego
JPS54153940U (de) * 1978-03-23 1979-10-26
JPS5648111A (en) * 1979-09-28 1981-05-01 Toshiba Chem Corp Impedance apparatus
JPS57101613A (en) * 1980-12-16 1982-06-24 Noritake Kinzoku Shokki Seisakusho:Kk Dinner knife
US4454740A (en) * 1981-09-10 1984-06-19 United Technologies Corporation Method for simultaneous peening and smoothing
FR2567778B1 (fr) * 1984-07-20 1986-11-21 Seb Sa Procede pour fabriquer un recipient culinaire et recipient culinaire obtenu
US4894959A (en) * 1988-05-19 1990-01-23 Hoover & Wells, Inc. Method and apparatus for cleaning a surface utilizing shot blasting
FR2715884B1 (fr) * 1994-02-04 1996-04-12 Gec Alsthom Electromec Procédé et dispositif pour le traitement de surface et la mise en précontrainte de la paroi intérieure d'une cavité.
US5670010A (en) * 1994-02-26 1997-09-23 E. I. Du Pont De Nemours And Company Process for adhering a fluororesin film to a metal surface using a primer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247932A2 (de) * 1986-05-28 1987-12-02 Seb S.A. Behälter, hauptsächlich für Küchenzwecke, der durch Prägen einer verzierten Metallscheibe hergestellt ist
EP0510546A1 (de) * 1991-04-23 1992-10-28 Winfried Heinzel Verfahren zum Beschichten von Haus- und Küchengerätschaften
US5463916A (en) * 1992-03-13 1995-11-07 Seb S.A. Process for the preparation of a surface for the securement of a coating
EP0568322A2 (de) * 1992-05-01 1993-11-03 Meyer Manufacturing Co., Ltd Kochgeschirr und Verfahren zur dessen Gestaltung
WO1995017994A1 (fr) * 1993-12-30 1995-07-06 Teknosen S.A. Procede et dispositif d'ebavurage de pieces mecaniques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809841A1 (de) * 1998-03-03 1999-09-16 Jana Zschech An eine Dauerwurfvorrichtung gekoppelter Rückgewinner für metallische Medien

Also Published As

Publication number Publication date
FR2743742A1 (fr) 1997-07-25
FR2743742B1 (fr) 1998-04-03
EP0786312B1 (de) 2000-06-14
DE69702271D1 (de) 2000-07-20
DE69702271T2 (de) 2001-02-22
US5829116A (en) 1998-11-03

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