WO2011045738A1 - Procédé pour générer des informations sur une surface et/ou à l'intérieur d'un corps en vitrocéramique, et table de cuisson munie d'une plaque vitrocéramique - Google Patents

Procédé pour générer des informations sur une surface et/ou à l'intérieur d'un corps en vitrocéramique, et table de cuisson munie d'une plaque vitrocéramique Download PDF

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Publication number
WO2011045738A1
WO2011045738A1 PCT/IB2010/054606 IB2010054606W WO2011045738A1 WO 2011045738 A1 WO2011045738 A1 WO 2011045738A1 IB 2010054606 W IB2010054606 W IB 2010054606W WO 2011045738 A1 WO2011045738 A1 WO 2011045738A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
laser
glass ceramic
laser beam
khz
Prior art date
Application number
PCT/IB2010/054606
Other languages
German (de)
English (en)
Inventor
Miguel Angel BUÑUEL MAGDALENA
Diego Dionisio Micolau
Francisco Javier Ester Sola
Jose-Ramon Garcia Jimenez
José Ignacio Peña Torre
Fernando Planas Layunta
Daniel Sola Martinez
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to EP10779337A priority Critical patent/EP2488324A1/fr
Publication of WO2011045738A1 publication Critical patent/WO2011045738A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/262—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used recording or marking of inorganic surfaces or materials, e.g. glass, metal, or ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
    • C03C23/0025—Other surface treatment of glass not in the form of fibres or filaments by irradiation by a laser beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B23K2103/52—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording

Definitions

  • the invention relates to a method for generating information on a surface of a glass ceramic body and to a method for generating information in the interior of a glass ceramic body. Furthermore, the invention relates to a hob with a glass ceramic plate, which has information generated by the method. From DE 20 2006 004 064 U1 a laser-printed glass ceramic disc is known. It is possible to produce inscriptions on the surface of the glass ceramic pane and / or ornaments in the interior of the glass ceramic pane by means of laser processing. In this case, a green laser in the wave range of 532 nm can be used.
  • information is generated on a surface of a glass ceramic body.
  • Information is generated by the action of a laser beam on the surface, whereby the laser is operated to produce the information in Q-switched operation, the so-called "Q-switch operation.”
  • the structuring of the surface with the laser beam is used to form the information
  • This mean pitch is also referred to as "hatch distance” and indicates, for example, the mean distance between two adjacent pits produced by the laser light.
  • the Ceran Suprema or ECO + manufactured by Schott is preferably used as the glass-ceramic material.
  • These are also dark Glass ceramic materials, so that in these the application of information on the surface is preferred.
  • this structuring enables both the formation of individual, precise lines and the areal display of information.
  • a diode-pumped solid-state laser is used as the laser, which in particular has a very high pulse power of a few kilowatts.
  • a Nd: YV04 laser is used.
  • a pulse repetition frequency in the Q-switched mode is set between 20 kHz and 40 kHz, in particular between 25 kHz and 35 kHz. This means that this repetition frequency in combination with the Q-switched very high energy pulse at short time intervals enables the desired contrasts and precise representations of information in the form of complex symbols or even letters and numbers, especially with regard to the precise surface processing of this specific glass-ceramic material allows.
  • a laser beam having a wavelength of 532 nm is produced for the processing of the glass ceramic material, which makes possible, in particular with regard to the material design of the glass ceramic per se, a very precise and also in view of undesired destruction of the material reliable laser beam processing.
  • the laser with maximum output power in view of the Beam energy is operated in the generation of I nformation.
  • the laser is operated at a reduced power, for example> 80%, but ⁇ 100% of the maximum output power with regard to the beam energy, so that an energy variation is possible during the generation of the given information, if necessary. so that in this context adjustments and individualities in the information generation are possible. Precisely when higher energies are required at specific points of the generated information, this energy can also be ramped up during the generation of information so that the laser beam power can then be adapted to the situation.
  • the laser beam is positioned to the surface in such a way that the beam focus, viewed in the direction of the beam, lies in a value range between +/- 2 mm around the level of the surface of the glass body to be processed.
  • the focus of the laser beam is formed directly on the surface and thus very concentrated energy is concentrated on a very small point. Due to the variation in the direction of the beam length with regard to the focus positioning to the surface, it is possible in this respect to produce situation-specific changes, so that even very specific areas of information generation can thereby be designed individually.
  • the laser beam is preferably focused in such a way that it has a minimum energy density of 10 kW / cm 2 .
  • the laser beam is moved when generating the information on the surface at a deflection speed between 100 mm / s and 1000 mm / s wi rd.
  • the deflection rate may be constant throughout the generation of the information.
  • information areas which are practically filled to a minimum and thus do not require large-area material processing are typical for contours or simple lines.
  • the maximum average structure spacing is initially predetermined, whereby a good contrast is achieved and, moreover, the most homogeneous possible flat representation of the information area is made possible; without recognizing every single line drawn by the laser during material processing. Thereafter, a maximum decay can be made on the basis of the present invention.
  • the deflection speed is smaller than in the first case, with the structure distance being greater in the second case than in the first case.
  • a further aspect of the invention relates to a method for generating information in the interior of a glass ceramic body, in which the information is generated by the action of a laser beam.
  • the laser is operated to produce the information in Q-switched operation, and the structuring of the glass body inside with the information to be generated by the laser beam is carried out with an average pitch of less than or equal to 0.2 mm.
  • a specific operation of a laser and, in particular, feature sizes for material processing with the laser are specified in a specific information generation inside the glass body, so that the information generated detected here very precisely and safely for an observer and understandable even in different air conditions can be.
  • the pulse repetition frequency in the Q-switched operation when generating information in the interior of the glass body between 50 kHz and 70 kHz, in particular set to 60 kHz.
  • the maximum output power of the laser both in the generation of information on the surface of the glass body and in the interior of the glass body between 7 W and 25 W.
  • the deflection speed between 100 mm / s and 400th mm / s, in particular between 200 mm / s and 400 mm / s.
  • This is preferably provided for transparent and transparent glass-ceramic materials as well as for dark and essentially for the human eye non-transparent glass-ceramic materials.
  • the average structure spacing is between 0.1 mm and 0.2 mm.
  • the invention relates to a hob with a glass ceramic plate which has information on the surface, which are produced by a method according to the invention or an advantageous embodiment thereof according to the first aspect and / or which has information inside, by a method according to the invention or a advantageous embodiment according to the second aspect, are generated.
  • the single FIGURE shows a hob 1, which has a glass ceramic plate 2.
  • a glass ceramic plate 2 On the glass ceramic plate 2 preparation container, such as pots, pans or the like can be placed.
  • the glass ceramic plate 2 has cooking zones 3, 4, 5 and 6.
  • Under the glass ceramic plate 2 3 to 6 radiators are mounted under the identified cooking zones, which can be heated by the cooking zones 3 to 6.
  • the cooking zones 3 to 6 are made for a user by displaying the contours 7, 8, 9 and 10.
  • These contours 7 to 10 thus represent the boundary of the cooking zones 3 to 6. It can be provided that these contours 7 to 10 are produced by means of laser processing of the glass-ceramic material as information.
  • a diode-pumped solid-state laser which operates in Q-switched operation and has a maximum output power between 7 W and 25 W.
  • parameter settings are given, which are a pulse repetition frequency in Q-switched operation between 25 kHz and 35 kHz, in particular 30 kHz.
  • the laser beam is generated with a wavelength of 532 nm, wherein the laser beam is positioned to the surface 1 1, that the beam focus in the direction of the beam and in the embodiment shown directly on the surface 1 1.
  • this beam focus in the direction of the beam viewed in a range of values between +/- 2 mmum the level of the surface 1 1 considered.
  • structuring specifics can be achieved which improve the viewing and precise representation of the information on the surface 11.
  • the contours 7 to 10 are moreover produced in such a way that the structuring of the surface 11 takes place with the laser beam with an average structure spacing of less than or equal to 0.2 mm.
  • the laser beam is also focused so that it has an energy density of at least 10 kW / cm 2 , wherein the deflection speed is between 200 mm / s and 400 mm / s.
  • the laser beam is generated in the generation of information on the surface 1 1 and thus the contours 7 to 10 with maximum output power and thus 100%.
  • different parameter settings of the laser can be made.
  • a high-precision information on the surface that can be reliably and easily recognized in the most diverse lighting conditions can be present even if the pulse repetition frequency at 20 kHz at a maximum output power of the laser beam of 100%, a pitch of 0.06 mm and a deflection speed of 350 mm / s, in which connection a time of about 4.87 seconds is required to produce one square centimeter of machined material.
  • a corresponding surface treatment is possible within 6.83 seconds.
  • a pulse repetition frequency of 20 kHz and an average structure spacing of 0.08 mm at the deflection speed of 250 mm / s a corresponding material surface can be treated or engraved and this can be done in 5.12 seconds.
  • this surface processing for information generation on the surface 11 takes place, at 100% output power, the deflection speed at 300 mm / s, the pulse repetition frequency at 20 kHz, and the mean pitch at 0, 06 mm lies.
  • the cooking field 1 in the interior of the glass ceramic plate 2 information 18 and 19, which are also only exemplified as a box.
  • letters and / or numbers and / or symbols may be generated.
  • a Q-switched diode-pumped solid-state laser with a maximum output power between 7 W. and 25 W is used for generating information 18 and 19, whereby here too the wavelength of the laser beam is 532 nm.
  • the pulse repetition frequency at 60 kHz the deflection speed between 200 mm / s and 400 mm / s and the average structure spacing is between 0.2 mm and 0.2 mm.
  • the glass-ceramic material is Ceran Suprema from Schott. Accordingly, it is also possible to use ECO + as the glass-ceramic material.
  • Both the number and the shape as well as the position of the information generated by said specific laser beam machining on the surface 11 and inside the glass ceramic plate 2 is merely exemplary.
  • Essential are the specific laser parameters in connection with the processing of the glass ceramic material, so that the information generated can be detected reliably, easily, accurately and precisely as well as for the user in different viewing angles to the glass ceramic plate 2 and in different lighting conditions safely and easily and in this regard even the most complex symbolic representations can be realized.

Abstract

L'invention concerne un procédé pour générer des informations (7 à 17) sur une surface (11) d'un corps en vitrocéramique (2), procédé selon lequel les informations sont générées sous l'effet d'un faisceau laser appliqué sur la surface (11), le laser fonctionnant en mode déclenché pour la génération des informations (7 à 17) et les informations étant générées par structuration de la surface (11) au faisceau laser avec une distance moyenne entre deux structures inférieure ou égale à 0,2 mm. L'invention concerne également un procédé pour générer des informations à l'intérieur d'un corps en verre ainsi qu'une table de cuisson munie d'une plaque vitrocéramique (2).
PCT/IB2010/054606 2009-10-15 2010-10-12 Procédé pour générer des informations sur une surface et/ou à l'intérieur d'un corps en vitrocéramique, et table de cuisson munie d'une plaque vitrocéramique WO2011045738A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10779337A EP2488324A1 (fr) 2009-10-15 2010-10-12 Procédé pour générer des informations sur une surface et/ou à l'intérieur d'un corps en vitrocéramique, et table de cuisson munie d'une plaque vitrocéramique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200930852 2009-10-15
ES200930852A ES2363360B1 (es) 2009-10-15 2009-10-15 Procedimiento para generar informaciones sobre una superficie y/o en interior de un cuerpo de vitrocerámica, y campo de cocción con una placa de vitrocerámica.

Publications (1)

Publication Number Publication Date
WO2011045738A1 true WO2011045738A1 (fr) 2011-04-21

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PCT/IB2010/054606 WO2011045738A1 (fr) 2009-10-15 2010-10-12 Procédé pour générer des informations sur une surface et/ou à l'intérieur d'un corps en vitrocéramique, et table de cuisson munie d'une plaque vitrocéramique

Country Status (3)

Country Link
EP (1) EP2488324A1 (fr)
ES (1) ES2363360B1 (fr)
WO (1) WO2011045738A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073153A1 (fr) * 2010-11-29 2012-06-07 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour accroître une conductibilité thermique, en particulier cristallisation par laser dans une plaque de cuisson vitrocéramique, et composant d'appareil électroménager
WO2015043804A1 (fr) * 2013-09-24 2015-04-02 Schott Ag Procédé de modification de la géométrie de vitrocéramiques et article en vitrocéramique fabriqué par ce procédé
WO2015150969A1 (fr) * 2014-04-02 2015-10-08 BSH Hausgeräte GmbH Procédé d'application d'un symbole sur une surface d'un composant destiné à un appareil ménager, composant et appareil ménager
EP2559514B1 (fr) * 2011-08-17 2016-12-28 BSH Hausgeräte GmbH Procédé de fabrication d'un appareil électroménager et appareil électroménager
CN106735915A (zh) * 2016-11-22 2017-05-31 天津航空机电有限公司 一种防锈蚀的不锈钢激光刻字方法
DE102016111438A1 (de) 2016-06-22 2017-12-28 Schott Ag Element aus Glaskeramik mit intrinsischer Dekoration und Verfahren zu dessen Erzeugung

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ES2570252A1 (es) * 2014-11-14 2016-05-17 Bsh Electrodomesticos Espana Sa Método para fabricar un componente de aparato doméstico que comprende una marcación generada por láser, un recubrimiento protector producido sobre ésta y componente de aparato doméstico

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EP0391848A1 (fr) * 1989-04-06 1990-10-10 Ciba-Geigy Ag Inscription par laser sur matériaux céramiques, glaçures, vitrocéramiques et verres
EP0432653A1 (fr) * 1989-12-15 1991-06-19 Schott Glaswerke Procédé de production de décorations de grande surface sur verre, vitrocéramiques ou céramiques et plaques vitrocéramiques décorées
WO1999025562A1 (fr) * 1997-11-14 1999-05-27 Cerdec Corporation Procede et materiau pour marquage au laser
DE10304382A1 (de) 2003-02-03 2004-08-12 Schott Glas Photostrukturierbarer Körper sowie Verfahren zur Bearbeitung eines Glases und/oder einer Glaskeramik
DE202006004064U1 (de) 2006-03-13 2006-07-27 Secqtec Gmbh & Co. Kg Laserbeschriftete Glaskeramikscheiben
EP2085702A2 (fr) * 2008-02-04 2009-08-05 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager doté d'un marquage et d'un agencement d'éclairage

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EP1124219A1 (fr) * 1995-06-21 2001-08-16 Ngk Insulators, Ltd. Substrat de disque magnétique, disque magnétique et procédé de production de substrats de disques magnétiques
JP2000301372A (ja) * 1999-04-23 2000-10-31 Seiko Epson Corp 透明材料のレーザ加工方法
ES2377695B1 (es) * 2009-07-14 2013-02-15 Bsh Electrodomésticos España, S.A. Placa de cubierta de aparato doméstico con un grabado interior por láser.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391848A1 (fr) * 1989-04-06 1990-10-10 Ciba-Geigy Ag Inscription par laser sur matériaux céramiques, glaçures, vitrocéramiques et verres
EP0432653A1 (fr) * 1989-12-15 1991-06-19 Schott Glaswerke Procédé de production de décorations de grande surface sur verre, vitrocéramiques ou céramiques et plaques vitrocéramiques décorées
WO1999025562A1 (fr) * 1997-11-14 1999-05-27 Cerdec Corporation Procede et materiau pour marquage au laser
DE10304382A1 (de) 2003-02-03 2004-08-12 Schott Glas Photostrukturierbarer Körper sowie Verfahren zur Bearbeitung eines Glases und/oder einer Glaskeramik
DE202006004064U1 (de) 2006-03-13 2006-07-27 Secqtec Gmbh & Co. Kg Laserbeschriftete Glaskeramikscheiben
CH699645B1 (de) * 2006-03-13 2010-04-15 Secqtec Gmbh & Co Kg Laserbeschriftete Glaskeramikscheiben.
EP2085702A2 (fr) * 2008-02-04 2009-08-05 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager doté d'un marquage et d'un agencement d'éclairage

Non-Patent Citations (1)

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Title
See also references of EP2488324A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073153A1 (fr) * 2010-11-29 2012-06-07 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour accroître une conductibilité thermique, en particulier cristallisation par laser dans une plaque de cuisson vitrocéramique, et composant d'appareil électroménager
EP2559514B1 (fr) * 2011-08-17 2016-12-28 BSH Hausgeräte GmbH Procédé de fabrication d'un appareil électroménager et appareil électroménager
WO2015043804A1 (fr) * 2013-09-24 2015-04-02 Schott Ag Procédé de modification de la géométrie de vitrocéramiques et article en vitrocéramique fabriqué par ce procédé
WO2015150969A1 (fr) * 2014-04-02 2015-10-08 BSH Hausgeräte GmbH Procédé d'application d'un symbole sur une surface d'un composant destiné à un appareil ménager, composant et appareil ménager
DE102016111438A1 (de) 2016-06-22 2017-12-28 Schott Ag Element aus Glaskeramik mit intrinsischer Dekoration und Verfahren zu dessen Erzeugung
CN106735915A (zh) * 2016-11-22 2017-05-31 天津航空机电有限公司 一种防锈蚀的不锈钢激光刻字方法

Also Published As

Publication number Publication date
ES2363360A1 (es) 2011-08-01
ES2363360B1 (es) 2012-06-13
EP2488324A1 (fr) 2012-08-22

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