DE102012207398A1 - Manufacture of roll used in press section of machine used in production and finishing of fibrous web, involves coating roll component with oxide ceramics, mechanically processing resultant component, and carrying out laser engraving - Google Patents

Manufacture of roll used in press section of machine used in production and finishing of fibrous web, involves coating roll component with oxide ceramics, mechanically processing resultant component, and carrying out laser engraving Download PDF

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Publication number
DE102012207398A1
DE102012207398A1 DE102012207398A DE102012207398A DE102012207398A1 DE 102012207398 A1 DE102012207398 A1 DE 102012207398A1 DE 102012207398 A DE102012207398 A DE 102012207398A DE 102012207398 A DE102012207398 A DE 102012207398A DE 102012207398 A1 DE102012207398 A1 DE 102012207398A1
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Germany
Prior art keywords
roll
functional layer
fibrous web
component
laser engraving
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DE102012207398A
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German (de)
Inventor
Dr. Mayr Wolfgang Peter
Alexander Etschmaier
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Voith Patent GmbH
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Voith Patent GmbH
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Priority to DE102012207398A priority Critical patent/DE102012207398A1/en
Priority to DE202012012592U priority patent/DE202012012592U1/en
Publication of DE102012207398A1 publication Critical patent/DE102012207398A1/en
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • 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
    • 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
    • C23C28/042—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 including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • D21F3/086—Pressure rolls having a grooved surface
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0246—Hard rolls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0841—Joints or connectors for sampling
    • A61M16/085—Gas sampling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3341—Pressure; Flow stabilising pressure or flow to avoid excessive variation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/603—Composites; e.g. fibre-reinforced
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/30—Fluoropolymers
    • F16C2208/32—Polytetrafluorethylene [PTFE]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F16C2223/42—Coating surfaces by spraying the coating material, e.g. plasma spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/42—Groove sizes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2324/00—Apparatus used in printing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2340/00—Apparatus for treating textiles

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Ceramic Engineering (AREA)
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  • Coating By Spraying Or Casting (AREA)
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Abstract

Manufacture of roll involves coating a roll component with oxide ceramics by high-velocity oxy fuel spraying process or plasma spraying process, mechanically processing the resultant coated roll component to predetermined surface roughness, and carrying out laser engraving on a surface of the roll component. An independent claim is included for roll, which has metallic material and functional layer containing oxide ceramics.

Description

Die Erfindung geht aus von einem Verfahren zur Herstellung einer Walze zur Verwendung in einer Maschine zur Herstellung oder Veredelung einer Faserstoffbahn wie beispielsweise einer Papier-, Karton- oder Tissuebahn, insbesondere zur Verwendung in der Pressenpartie einer solchen Maschine, nach dem Oberbegriff von Anspruch 1, sowie von einer solchermaßen hergestellten Walze nach dem Oberbegriff von Anspruch 5.The invention relates to a method for producing a roll for use in a machine for producing or finishing a fibrous web, such as a paper, board or tissue web, in particular for use in the press section of such a machine, according to the preamble of claim 1, and of a roll produced in this way according to the preamble of claim 5.

Aus dem Stand der Technik sind zahlreiche Verfahren zur Herstellung von Walzen mit oxidischen Keramikspritzschichten auf harten Presswalzen mittels HVOF- oder Plasmaspritzverfahren bekannt. Beispielsweise geht aus der DE 10 2008 001 720 A1 ein Verfahren zum Beschichten einer Werkstoffoberfläche, vorzugsweise der Oberfläche einer insbesondere ein Stahlsubstrat enthaltenden Walze, durch thermisches Spritzen hervor, bei dem ein Spritzzusatzwerkstoff erschmolzen oder angeschmolzen und mittels eines geeigneten Flammspritz-(FS-), High Velocity Oxygen Fuel-(HVOF-) und/oder High Velocity Air Fuel-(HVAF-)Systems auf die Werkstückoberfläche geschleudert wird. Numerous methods for the production of rolls with oxidic ceramic spray coatings on hard press rolls by means of HVOF or plasma spraying processes are known from the prior art. For example, goes from the DE 10 2008 001 720 A1 a process for coating a material surface, preferably the surface of a roller, in particular containing a steel substrate, by thermal spraying, in which a spray additive material is melted or melted and by means of a suitable flame spraying (FS), high velocity oxygen fuel (HVOF) and / High Velocity Air Fuel (HVAF) system is thrown onto the workpiece surface.

Die bekannten harten Presswalzen sind dabei oft in ihren Blattabgabeeigenschaften eingeschränkt. Um diese zu verbessern, werden Siegelungen oder bestimmte Oberflächenmorphologien eingesetzt. The known hard press rolls are often limited in their sheet delivery properties. To improve these, seals or certain surface morphologies are used.

Beispielsweise ist aus der EP 0230633 B1 ein Verfahren zur Herstellung einer Reibrolle zum Durchführen von Arbeiten an einem langgestreckten festen Material durch Reibkontakt bekannt, wobei die Rolle eine eine Arbeitsfläche bildende Außenfläche aufweist, auf welche ein Keramik- oder Metallkarbidüberzug aufgebracht wird und wobei der Überzug auf der Arbeitsfläche durch Laser-Gravieren mit einer Mehrzahl von Vertiefungen versehen wird, die ein im wesentlichen die gesamte Arbeitsfläche bedeckendes Muster aufweisen, wobei das Laser-Gravieren über im wesentlichen die gesamte Arbeitsfläche hinweg für eine gleichförmige, verschleißfeste Oberflächentextur sorgt.For example, is from the EP 0230633 B1 a method for producing a friction roller for performing work on an elongated solid material by frictional contact, wherein the roller has a working surface forming outer surface on which a ceramic or metal carbide coating is applied and wherein the coating on the work surface by laser engraving with a plurality of recesses having a pattern covering substantially the entire working surface, the laser engraving providing a uniform, wear-resistant surface texture over substantially the entire working surface.

Das aus der o.g. Patentschrift bekannte Verfahren zum Bearbeiten der Oberfläche einer Walze kann jedoch die Blattabgabeeigenschaften für die Anwendung in der Pressenpartie nicht verbessern, sondern sorgt im Gegenteil für eine Strukturierung des Endproduktes, die nicht erwünscht ist.The from the o.g. However, the patented method for processing the surface of a roller can not improve the sheet dispensing properties for use in the press section, but on the contrary ensures structuring of the end product, which is not desirable.

Weiterhin ist aus der EP 1111089 A1 ein Verfahren zum Versiegeln einer porösen Schicht an der Oberfläche eines Körpers, insbesondere zum Versiegeln einer thermischen Spritzschicht, bekannt. Als Versiegelungsmittel wird eine Flüssigkeit verwendet, die aus einem Lösungsmittel und mindestens einem darin enthaltenen oxidierbaren Metall besteht. Das Verfahren sieht vor, das Versigelungsmittel aufzutragen, einwirken zu lassen und dann durch Wärmeeintrag überschüssiges Versiegelungsmittel abzudampfen bzw. mechanisch zu entfernen. Das Verfahren kann beliebig oft wiederholt werden, bis die gewünschte Oberflächenqualität erreicht ist.Furthermore, from the EP 1111089 A1 a method for sealing a porous layer on the surface of a body, in particular for sealing a thermal sprayed layer, known. The sealant used is a liquid consisting of a solvent and at least one oxidizable metal contained therein. The method envisages applying the sealant, allowing it to act and then evaporating or mechanically removing excess sealant by applying heat. The process can be repeated as often as desired until the desired surface quality is achieved.

Nachteilig an diesem bekannten Siegelungsverfahren ist vor allem, dass es teuer und aufwendig ist, sowohl von Seiten der verwendeten Materialien als auch von deren Verarbeitung her.A disadvantage of this known sealing method is mainly that it is expensive and expensive, both from the side of the materials used as well as from their processing ago.

Es ist somit Aufgabe der Erfindung, eine Walze anzugeben, deren Oberfläche einerseits glatt genug ist, um bereits in der Pressenpartie zu einer hohen Glätte des Endproduktes beizutragen, und andererseits rauh genug, um hervorragende Blattabgabeeigenschaften aufzuweisen.It is therefore an object of the invention to provide a roller whose surface is on the one hand smooth enough to contribute already in the press section to a high smoothness of the final product, and on the other hand rough enough to have excellent sheet dispensing properties.

Die Aufgabe wird hinsichtlich des Verfahrens durch die kennzeichnenden Merkmale des Anspruchs 1 und hinsichtlich der Walze durch die kennzeichnenden Merkmale des Anspruchs 5 jeweils in Verbindung mit den gattungsbildenden Merkmalen gelöst.The object is achieved with regard to the method by the characterizing features of claim 1 and with respect to the roller by the characterizing features of claim 5 in each case in conjunction with the generic features.

Erfindungsgemäß ist dabei vorgesehen, dass das Verfahren die Schritte des Beschichten eines Walzenkörpers mit einer Oxidkeramik mittels HVOF- oder Plasmaspritzen, mechanisches Bearbeiten der Oxidkeramikbeschichtung zur Einstellung einer definierten Oberflächenrauigkeit, sowie das Einbringen einer Oberflächenstruktur durch Lasergravur umfasst.According to the invention, it is provided that the method comprises the steps of coating a roll body with an oxide ceramic by means of HVOF or plasma spraying, mechanically working the oxide ceramic coating to set a defined surface roughness, and introducing a surface structure by laser engraving.

Dadurch kann der Oberfläche eine Struktur vermittelt werden, die einerseits in ihrer Dimensionierung fein genug ist, um Markierungen in der Faserstoffbahn zu vermeiden, und dennoch genug offenes Volumen zur Verfügung stellt, durch welches ein definierter Wasserfilm an der Oberfläche der Walze haltbar ist, welcher die Blattabgabe unterstützt.Thus, the surface can be imparted with a structure that is fine enough on the one hand to avoid markings in the fibrous web and yet provides enough open volume through which a defined film of water can be preserved on the surface of the roll which supports the surface Sheet delivery supported.

Weitere vorteilhafte Aspekte und Ausgestaltungsvarianten der Erfindung gehen aus den untergeordneten Ansprüchen hervor.Further advantageous aspects and embodiments of the invention will become apparent from the subordinate claims.

Vorteilhafterweise kann das Verfahren zwischen den Schritten des Beschichtens und des mechanischen Bearbeitens einen Schritt der ersten Siegelung umfassen. Die Siegelung sorgt dabei für den Korrosionsschutz.Advantageously, the method may include a step of first sealing between the steps of coating and mechanical working. The seal ensures corrosion protection.

Weiterhin kann das Verfahren nach dem Schritt des Einbringens einer Oberflächenstruktur einen weiteren Schritt der Siegelung umfassen, durch welchen hydrophile und hydrophobe Bereiche an der Walzenoberfläche geschaffen werden, die die Blattabgabeeigenschaften zusätzlich verbessern.Furthermore, after the step of introducing a surface structure, the method may comprise a further step of the sealing, by which hydrophilic and hydrophobic regions on the Roll surface can be created, which additionally improve the sheet delivery properties.

Bevorzugt wird nach dem Schritt der weiteren Siegelung ein weiterer Schritt der mechanischen Bearbeitung durchgeführt.Preferably, after the step of the further sealing, a further step of the mechanical processing is carried out.

Gemäß vorteilhaften Ausführungsformen der Erfindung kann die Oberflächenstruktur zumindest Rillen und/oder Vertiefungen aufweisen, welche der Ausbildung und Aufrechterhaltung eines Wasserfilms auf der Walzenoberfläche dienen.According to advantageous embodiments of the invention, the surface structure may have at least grooves and / or depressions, which serve to form and maintain a water film on the roll surface.

Bevorzugt können die Rillen eine Breite von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm und eine Tiefe von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm aufweisen.The grooves may preferably have a width of 1 mm to 1 mm, preferably of 2 mm to 250 mm and a depth of 1 mm to 1 mm, preferably of 2 mm to 250 mm.

Weiterhin können die Vertiefungen vorteilhafterweise einen Durchmesser von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm und eine Tiefe von 1mm bis 0,5 mm, bevorzugt von 2 mm bis 100 mm aufweisen.Furthermore, the depressions can advantageously have a diameter of 1 mm to 1 mm, preferably of 2 mm to 250 mm and a depth of 1 mm to 0.5 mm, preferably from 2 mm to 100 mm.

Vorzugsweise kann die Funktionsschicht eine Oxidkeramik auf Basis von Al2O3, TiO2, Cr2O3, ZrO2, SiO2, Y2O3 oder Mischungen daraus sein.The functional layer may preferably be an oxide ceramic based on Al 2 O 3 , TiO 2 , Cr 2 O 3 , ZrO 2 , SiO 2 , Y 2 O 3 or mixtures thereof.

Gemäß einem vorteilhaften Aspekt der Erfindung kann die Funktionsschicht zumindest eine Versiegelung aufweisen, welche organischer Natur wie beispielsweise Epoxidharze, Epoxidharz mit Polytetrafluorethylen (PTFE), Silikon oder anorganischer Natur wie z.B. Silikate, Phosphate ist.According to an advantageous aspect of the invention, the functional layer may have at least one seal of organic nature such as epoxy resins, polytetrafluoroethylene (PTFE) epoxy, silicone or inorganic nature such as epoxy resin. Silicates, phosphates is.

Besonders vorteilhaft kann die Funktionsschicht eine weitere Siegelung aufweisen, welche hydrophobe und/oder hydrophile Stoffe enthält, insbesondere Silikon, Polytetrafluorethylen (PTFE), Perfluoralkoxy-Polymere (PFA), Perfluorethylenpropylen (FEP).Particularly advantageously, the functional layer may have a further seal which contains hydrophobic and / or hydrophilic substances, in particular silicone, polytetrafluoroethylene (PTFE), perfluoroalkoxy polymers (PFA), perfluoroethylene propylene (FEP).

In diesem Zusammenhang wird darauf hingewiesen, dass die in dieser Beschreibung und den Ansprüchen zur Aufzählung von Merkmalen verwendeten Begriffe "umfassen", "aufweisen", "beinhalten", "enthalten" und "mit", sowie deren grammatikalische Abwandlungen, generell als nichtabschließende Aufzählung von Merkmalen, wie z. B. Komponenten, Verfahrensschritten, Einrichtungen, Bereichen, Größen und dergleichen aufzufassen sind, und in keiner Weise das Vorhandensein anderer oder zusätzlicher Merkmale oder Gruppierungen von anderen oder zusätzlichen Merkmalen ausschließen.In this context, it is to be understood that the terms used in this specification and claims to include features include "comprise," "include," "include," "contain," and "with," as well as their grammatical variations, generally non-exhaustive of features such. Components, procedures, facilities, areas, sizes, and the like, and in no way excludes the presence of other or additional features or groupings of other or additional features.

Die Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnungen näher beschrieben. In den Zeichnungen zeigen:The invention will be described in more detail below with reference to the drawings. In the drawings show:

1 stark schematisierte Schnittansichten einer thermischen Spritzschicht für eine harte Presswalze mit erfindungsgemäß ausgestalteter Oberfläche, 1 highly schematic sectional views of a thermal spray coating for a hard press roll with inventively ausgestalteter surface,

2 stark schematisierte Schnittansichten einer thermischen Spritzschicht in gleicher Ansicht wie 1 mit zusätzlicher Siegelung, und 2 highly schematic sectional views of a thermal spray layer in the same view as 1 with additional sealing, and

3 stark schematisierte beispielhafte Oberflächenformen, die zur Anwendung auf einer erfindungsgemäß ausgestalteten Walze geeignet sind. 3 highly schematic exemplary surface shapes that are suitable for use on a roll designed according to the invention.

Es sei darauf hingewiesen, dass die Figuren lediglich illustrativen Zwecken dienen und keine Wiedergabe eines realen Bauteils darstellen. Größen wie Verhältnisse der einzelnen Komponenten sind daher im Hinblick auf eine klare Darstellung der Gegebenheiten gewählt und weichen von denen einer tatsächlichen Ausführungsform ab. It should be noted that the figures are for illustrative purposes only and do not represent a representation of a real component. Sizes and ratios of the individual components are therefore selected with regard to a clear presentation of the circumstances and differ from those of an actual embodiment.

In den 1 und 2 sind in gleicher Ansicht stark schematisierte Schnittansichten durch thermische Spritzschichten 1 gezeigt, die für die Anwendung auf harten Presswalzen in der Pressenpartie einer bahnverarbeitenden oder -veredelnden Maschine wie einer Papier-, Karton- oder Tissuemaschine und zur Kombination mit den erfindungsgemäßen Maßnahmen geeignet sind. Die Presswalze als solche wird an dieser Stelle nicht näher erläutert, da mit thermischen Spritzschichten 1 versehene Presswalzen wie weiter oben angesprochen bereits seit geraumer Zeit zum Stand der Technik gehören. In the 1 and 2 are in the same view highly schematic sectional views through thermal spray coatings 1 shown, which are suitable for use on hard press rolls in the press section of a web-processing or -veredelnden machine such as a paper, board or Tissuemaschine and for combination with the inventive measures. The pressure roller as such is not explained in detail here, as with thermal spray coatings 1 provided press rolls as mentioned above belong for some time to the prior art.

Die dargestellten thermischen Spritzschichten 1 sind im Ausführungsbeispiel in Form von Oxidkeramiken auf Basis von Al2O3, TiO2, Cr2O3, ZrO2, SiO2, Y2O3 oder Mischungen daraus ausgeführt und mittels herkömmlicher HVOF- oder Plasmaspritzverfahren auf den nicht näher dargestellten vorzugsweise aus Stahl gefertigten Walzenkern einer Presswalze aufgebracht.The illustrated thermal spray coatings 1 are in the embodiment in the form of oxide ceramics based on Al 2 O 3 , TiO 2 , Cr 2 O 3 , ZrO 2 , SiO 2 , Y 2 O 3 or mixtures thereof and carried out by conventional HVOF or plasma spraying on the non-illustrated preferably made of steel roll core of a press roll applied.

Die thermischen Spritzschichten 1 stellen jeweils die Oberfläche zur Verfügung, welche als Funktionsschicht mit der Faserstoffbahn direkt oder indirekt – in letzterem Fall über eine Papiermaschinenbespannung – in Kontakt treten.The thermal spray coatings 1 each provide the surface available, which as a functional layer with the fibrous web directly or indirectly - in the latter case via a papermachine fabric - in contact.

Auf dem Walzenkern der Presswalze kann zwischen der thermischen Spritzschicht 1 und dem Walzenkern zunächst eine Haftschicht 2 ausgebildet sein, welche der Haftvermittlung zwischen dem Walzenkern und den darauf ausgebildeten weiteren Schichten dient. Weiters kann eine Korrosionssperrschicht 3 vorgesehen sein.On the roll core of the press roll can between the thermal sprayed layer 1 and the roll core first, an adhesive layer 2 be formed, which serves the bonding between the roll core and the further layers formed thereon. Furthermore, a corrosion barrier layer 3 be provided.

Erfindungsgemäß ist vorgesehen, dass in die thermische Spritzschicht 1 zumindest eine Oberflächenform 4 eingebracht wird, welche beispielsweise in Form von Rillen 4a oder von Vertiefungen 4b gebildet werden können. In den 1 und 2 ist jeweils im oberen Teil eine Oberflächengestaltung mit Rillen 4a, im unteren Teil mit Rillen 4a und Vertiefungen 4b dargestellt. Alternativ können auch nur Vertiefungen 4b vorgesehen sein.According to the invention it is provided that in the thermal sprayed layer 1 at least one surface shape 4 is introduced, which, for example in the form of grooves 4a or depressions 4b can be formed. In the 1 and 2 is in the upper part of a surface design with grooves 4a , in the lower part with grooves 4a and depressions 4b shown. Alternatively, only depressions 4b be provided.

Die gewählten Oberflächenformen 4 sind dabei erfindungsgemäß mittels eines Gravurverfahrens, insbesondere mittels Lasergravur in die Oberfläche der thermischen Spritzschicht 1 eingeschrieben. The chosen surface shapes 4 are according to the invention by means of an engraving process, in particular by means of laser engraving in the surface of the thermal spray coating 1 enrolled.

Die Dimensionierung der Oberflächenformen 4 bewegt sich dabei im Mikrometerbereich bis zum einstelligen Millimeterbereich. So können die Rillen 4a eine Breite von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm und eine Tiefe von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm aufweisen, während die Vertiefungen 4b einen Durchmesser von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm und eine Tiefe von 1mm bis 0,5 mm, bevorzugt von 2 mm bis 100 mm aufweisen. The dimensioning of surface shapes 4 moves in the micrometer range to the single-digit millimeter range. So can the grooves 4a a width of 1mm to 1mm, preferably from 2mm to 250mm and a depth of 1mm to 1mm, preferably from 2mm to 250mm, while the recesses 4b have a diameter of 1mm to 1mm, preferably from 2mm to 250mm and a depth of 1mm to 0.5mm, preferably from 2mm to 100mm.

Durch die genannte Dimensionierung der Oberflächenformen 4 kann somit sichergestellt werden, dass einerseits genug offenes Volumen zur Verfügung gestellt wird, um einen stabilen Wasserfilm aufzubauen und zu erhalten, um die Blattabgabeeigenschaften der Walze zu verbessern, andererseits jedoch durch die Oberflächenformen 4 keine Markierung der Faserstoffbahn erfolgt, so dass das Endprodukt die gewünschte glatte Oberfläche behält.By the mentioned dimensioning of the surface forms 4 Thus, it can be ensured that, on the one hand, enough open volume is made available to build up and maintain a stable film of water to improve the sheet dispensing properties of the roller, but on the other hand by the surface shapes 4 no marking of the fibrous web takes place, so that the end product retains the desired smooth surface.

Betrachtet man 2, so ist ersichtlich, dass die thermische Spritzschicht 1 mittels einer Siegelung 5 versiegelt sein kann. Durch geeignete Wahl der Versiegelung, welche organischer Natur wie beispielsweise Epoxidharze, Epoxidharz mit Polytetrafluorethylen (PTFE), Silikon oder anorganischer Natur wie z.B. Silikate, Phosphate sein kann, kann die Blattabgabe weiter verbessert werden. If you look at 2 , it can be seen that the thermal spray coating 1 by means of a seal 5 can be sealed. By suitable choice of the seal, which may be organic nature such as epoxy resins, epoxy resin with polytetrafluoroethylene (PTFE), silicone or inorganic nature such as silicates, phosphates, the sheet delivery can be further improved.

Auch können durch die Verwendung von Silikonen, Polytetrafluorethylen (PTFE), Perfluoralkoxy-Polymere (PFA), Perfluorethylenpropylen (FEP) beispielsweise gezielt hydrophile und hydrophobe Bereiche geschaffen werden, die einerseits für eine gute Überführung sorgen und andererseits die Blattabgabe verbessern.Also, by the use of silicones, polytetrafluoroethylene (PTFE), perfluoroalkoxy polymers (PFA), perfluoroethylene propylene (FEP), for example, specifically hydrophilic and hydrophobic areas can be created, on the one hand provide for a good transfer and on the other hand improve the sheet delivery.

In 3 sind stark schematisiert Ausführungsformen für mögliche Oberflächenformen 4 dargestellt. Die Vertiefungen 4b können wie aus 1 und 2 oder 3 unten ersichtlich in Form von runden napfartigen Einbuchtungen ausgebildet sein, es sind jedoch auch andere Formen wie Rechtecke, Quadrate – 3 rechts oben – oder Waben – 3 links oben – denkbar und möglich.In 3 are highly schematized embodiments for possible surface shapes 4 shown. The wells 4b can look like 1 and 2 or 3 be formed below in the form of round cup-like indentations, but there are other shapes such as rectangles, squares - 3 top right - or honeycomb - 3 top left - conceivable and possible.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 102008001720 A1 [0002] DE 102008001720 A1 [0002]
  • EP 0230633 B1 [0004] EP 0230633 B1 [0004]
  • EP 1111089 A1 [0006] EP 1111089 A1 [0006]

Claims (11)

Verfahren zur Herstellung einer Walze zur Verwendung in der Pressenpartie einer Maschine zur Herstellung und/oder Veredelung einer Faserstoffbahn, umfassend die folgenden Verfahrensschritte: 1) Beschichten eines Walzenkörpers mit einer Oxidkeramik mittels HVOF- oder Plasmaspritzen; 2) mechanisches Bearbeiten der Oxidkeramikbeschichtung zur Einstellung einer definierten Oberflächenrauigkeit; 3) Einbringen einer Oberflächenstruktur durch Lasergravur. Process for producing a roll for use in the press section of a machine for producing and / or refining a fibrous web, comprising the following process steps: 1) coating a roll body with an oxide ceramic by means of HVOF or plasma spraying; 2) mechanical working of the oxide ceramic coating to set a defined surface roughness; 3) Introduction of a surface structure by laser engraving. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Verfahren zwischen den Schritten des Beschichtens und des mechanischen Bearbeitens einen Schritt der ersten Siegelung umfasst.A method according to claim 1, characterized in that the method between the steps of coating and mechanical processing comprises a step of the first seal. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Verfahren nach dem Schritt des Einbringens einer Oberflächenstruktur einen weiteren Schritt der Siegelung umfasst.A method according to claim 1 or 2, characterized in that the method comprises, after the step of introducing a surface structure, a further step of the sealing. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass nach dem Schritt der weiteren Siegelung ein weiterer Schritt der mechanischen Bearbeitung vorgesehen ist. A method according to claim 3, characterized in that after the step of the further sealing a further step of the mechanical processing is provided. Walze zur Verwendung in der Pressenpartie einer Maschine zur Herstellung und/oder Veredelung einer Faserstoffbahn wie einer Papier-, Karton- oder Tissuebahn, umfassend einen Walzenkörper aus einem metallischen Material und zumindest einer darauf angeordneten Funktionsschicht, die geeignet ist, mit der Faserstoffbahn mittelbar oder unmittelbar in Kontakt zu treten, wobei die Funktionsschicht aus einer Oxidkeramik besteht und durch ein thermisches Spritzverfahren auf dem Walzenkörper aufgebracht ist, dadurch gekennzeichnet, dass die Funktionsschicht zumindest eine Oberflächenstruktur aufweist, welche durch Lasergravur in die Funktionsschicht eingebracht ist. Roller for use in the press section of a machine for producing and / or finishing a fibrous web, such as a paper, board or tissue web, comprising a roll body of a metallic material and at least one functional layer arranged thereon, which is suitable, directly or indirectly, with the fibrous web to come into contact, wherein the functional layer consists of an oxide ceramic and is applied by a thermal spraying process on the roll body, characterized in that the functional layer has at least one surface structure which is introduced by laser engraving in the functional layer. Walze nach Anspruch 5, dadurch gekennzeichnet, dass die Oberflächenstruktur zumindest eine der folgenden Formen aufweist: Rillen, Vertiefungen.Roller according to claim 5, characterized in that the surface structure has at least one of the following shapes: grooves, recesses. Walze nach Anspruch 6, dadurch gekennzeichnet, dass die Rillen eine Breite von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm und eine Tiefe von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm aufweisen.Roller according to claim 6, characterized in that the grooves have a width of 1mm to 1mm, preferably from 2 mm to 250 mm and a depth of 1mm to 1mm, preferably from 2 mm to 250 mm. Walze nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Vertiefungen einen Durchmesser von 1mm bis 1mm, bevorzugt von 2 mm bis 250 mm und eine Tiefe von 1mm bis 0,5 mm, bevorzugt von 2 mm bis 100 mm aufweisen.Roller according to claim 6 or 7, characterized in that the recesses have a diameter of 1mm to 1mm, preferably from 2 mm to 250 mm and a depth of 1mm to 0.5 mm, preferably from 2 mm to 100 mm. Walze nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass die Funktionsschicht eine Oxidkeramik auf Basis von Al2O3, TiO2, Cr2O3, ZrO2, SiO2, Y2O3 oder Mischungen daraus ist.Roller according to one of claims 5 to 8, characterized in that the functional layer is an oxide ceramic based on Al 2 O 3 , TiO 2 , Cr 2 O 3 , ZrO 2 , SiO 2 , Y 2 O 3 or mixtures thereof. Walze nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, dass die Funktionsschicht zumindest eine Versiegelung aufweist, welche organischer Natur, insbesondere Epoxidharze, Epoxidharz mit Polytetrafluorethylen (PTFE), Silikon oder anorganischer Natur, insbesondere Silikate, Phosphate ist.Roller according to one of claims 5 to 9, characterized in that the functional layer has at least one seal which is organic in nature, in particular epoxy resins, epoxy resin with polytetrafluoroethylene (PTFE), silicone or inorganic nature, in particular silicates, phosphates. Walze nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, dass Funktionsschicht eine weitere Siegelung aufweist, welche hydrophobe und/oder hydrophile Stoffe enthält, insbesondere Silikon, Polytetrafluorethylen (PTFE), Perfluoralkoxy-Polymere (PFA), Perfluorethylenpropylen (FEP).Roller according to one of claims 5 to 10, characterized in that functional layer has a further seal which contains hydrophobic and / or hydrophilic substances, in particular silicone, polytetrafluoroethylene (PTFE), perfluoroalkoxy polymers (PFA), perfluoroethylene propylene (FEP).
DE102012207398A 2012-05-04 2012-05-04 Manufacture of roll used in press section of machine used in production and finishing of fibrous web, involves coating roll component with oxide ceramics, mechanically processing resultant component, and carrying out laser engraving Ceased DE102012207398A1 (en)

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