EP1980328A2 - Dispositif de revêtement de composants - Google Patents

Dispositif de revêtement de composants Download PDF

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Publication number
EP1980328A2
EP1980328A2 EP08006774A EP08006774A EP1980328A2 EP 1980328 A2 EP1980328 A2 EP 1980328A2 EP 08006774 A EP08006774 A EP 08006774A EP 08006774 A EP08006774 A EP 08006774A EP 1980328 A2 EP1980328 A2 EP 1980328A2
Authority
EP
European Patent Office
Prior art keywords
distributor disc
spray
coating
distributor
hollow body
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
EP08006774A
Other languages
German (de)
English (en)
Other versions
EP1980328B1 (fr
EP1980328A3 (fr
Inventor
Wolfram Dr. Wagener
Emil Schreier
Franz Bayer
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.)
Moll Maschinenbau GmbH
Bayerische Motoren Werke AG
Original Assignee
Moll Maschinenbau GmbH
Bayerische Motoren Werke AG
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 Moll Maschinenbau GmbH, Bayerische Motoren Werke AG filed Critical Moll Maschinenbau GmbH
Publication of EP1980328A2 publication Critical patent/EP1980328A2/fr
Publication of EP1980328A3 publication Critical patent/EP1980328A3/fr
Application granted granted Critical
Publication of EP1980328B1 publication Critical patent/EP1980328B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • B05B7/224—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material having originally the shape of a wire, rod or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
    • 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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/131—Wire arc spraying

Definitions

  • the invention relates to a device for coating components.
  • a material in a layer which is usually only a few ⁇ m thick is applied to a carrier component in order, for example, to increase the wear resistance or to impart certain properties (for example electrical conductivity) to the component surface.
  • thermal coating methods in which the coating material is melted and then - regularly by means of a compressed air or other gas stream - atomized and transported to the surface to be coated, are used.
  • thermal coating processes are plasma coating, high speed flame spraying and electroforming wire spraying.
  • the disclosed therein arc spray unit has a rotatably driven burner shaft in the form of a hollow shaft, which is inserted into the cavity to be coated. At the lower end of the burner shaft a radially directed nozzle is provided, through which the droplets of the molten coating material is discharged by means of compressed air, which is supplied through the hollow interior of the burner shaft.
  • a replenishment device with two wire rollers is attached to this. Starting from the wire rollers, the two wires are led parallel to the longitudinal axis of the burner shaft up to the top. There, an electric arc is generated between the two wire ends by means of an electrical high voltage, which melts the wire material. The drops of molten wire are then captured by the flow of compressed air and discharged through the nozzle.
  • the replenishment device ensures a continuous supply of the burner with coating material.
  • the present invention seeks to provide a device for coating components, which is characterized by a simple structural design. Furthermore, a method should be specified, which advantageously allows the use of such a device. This object is solved by the subject matters of the independent claims; advantageous developments are the subject of the respective dependent claims.
  • the essence of the invention provides, in a device for coating a component, in particular a Hohlköpers, next to a spraying device, by means of which a directed spray of coating material is produced to provide an additional distribution device, by means of which the spray deflected to the surface to be coated of the component becomes.
  • both the spray device and the distributor device can have a particularly simple structural design.
  • the embodiment of the coating device according to the invention can be particularly preferably applied to an arc wire spraying device.
  • the device according to the invention preferably has at least one burner for melting the coating material and at least one nozzle pressurized with compressed gas for transporting the molten coating material.
  • the spraying device is preferably arranged on the end side on an elongate base body.
  • the elongated base body can simultaneously serve to supply the coating material and a compressed gas for the transport of the coating material.
  • the spray device generates a directed in the longitudinal direction of the body spray, so that a configuration can be achieved that does not require any deflection of the gas stream or the spray.
  • the distributor device has a rotary driven distributor disk.
  • a rotary driven distributor disk Such a configuration may have advantages in particular in the coating of a rotationally symmetrical Hohlköpers. If the particles of the spray jet of molten coating material meet the distributor disk, they are first grasped by the latter and moved in a circular path. However, the transferable centripetal forces are limited by the static friction between the particles and the surface of the distributor disc. If the static friction is exceeded, the particles are moved in the direction of the surfaces to be coated, following their tangentially directed inertial forces.
  • the distributor disc has recesses which extend from a central region into the outer region of the distributor disc and extend as far as possible at the edge of the distributor disc.
  • the depressions can be straight.
  • the recesses extend arcuately, preferably in the direction of rotation of the distributor disc. The recesses allow a higher acceleration effect of the distributor disc, since the particles / drops are guided in the wells.
  • the length and optionally the radius of the recesses can be chosen arbitrarily according to the respective coating process.
  • the rotating distributor disc is conical. This can be a particularly good distribution of a directed onto the distributor disc spray jet of the spray device in the direction of the surfaces to be coated allow, especially when the spray is directed to the tip of the conical distributor disc.
  • the tip of the conical distributor disc preferably lies on its axis of rotation.
  • the distribution device at least in the sections in which this comes into contact with the spray of molten coating material, a surface made of a ceramic material, wherein the distributor coated with the ceramic material or even completely or partially can be made of a ceramic material.
  • a surface made of a ceramic material wherein the distributor coated with the ceramic material or even completely or partially can be made of a ceramic material.
  • a rotary drive by means of which the distributor disc is driven in rotation, be designed controllable, so that the rotational speed of the rotating distributor disc can be adjusted to a desired and with regard to the actual coating process adapted value. This makes it possible to adjust the kinetic energy with which the particles impinge on the surface to be coated.
  • the spraying device and / or the distributing device is designed linearly movable. This allows the coating of larger component surfaces. Depending on the configuration of the coating device according to the invention, it may be provided to form only the spray device or the distributor linearly movable. Alternatively, both elements can be designed to be movable, wherein the movements can be synchronous or asynchronous. Preferably, the spraying device and / or the distributor disk are moved along the axis of rotation of the distributor disk.
  • the coating device according to the invention further comprises a suction device, which can serve to suck off the resulting overspray during coating.
  • a method according to the invention for coating a component, in particular a hollow body is characterized in that a spray jet of coating material directed onto a distributor device is produced by means of a spraying device and this spray jet is deflected by means of the distributing device onto the surface to be coated.
  • the coating material is supplied to the spray device in solid form or in powder form, since it is easy to handle in these conditions.
  • a coating material present in solid form or in powder form is melted before it is sprayed, as a result of which, inter alia, particularly fine particles can be produced.
  • the adhesion of the coating material to the surface to be coated can be improved in this way, since the hot particles of the material locally melt the surface of the component to be coated, whereby an improved cohesive connection is achieved.
  • the spraying device and the distributor device can be moved from different sides into the hollow cylinder. This can allow a structural separation between the spray device and distribution device, which can reduce the design effort for the entire coating device.
  • a device is shown, which is used for coating a cylinder bore in a ball housing of an internal combustion engine.
  • the illustrated coating apparatus has a spray lance 1 with a spray head 2 arranged at the end.
  • the spray lance 1 in whose elongated base body 3 both a supply for the present in the form of wires 4 coating material and a compressed air supply 5 is provided, generates a forward, that is directed in the direction of the longitudinal axis of the spray lance 1 spray jet of molten coating material.
  • a high electrical voltage applied between the two wires 4 of coating material, a high electrical voltage, whereby an arc between the two at a small distance from each other positioned ends of the wires 4 is generated.
  • the material is melted at the ends of the wires 4 and detected by the supplied by the compressed air supply 5 air flow, thereby forming a forward spray jet.
  • the topography of the distribution disc 8 is off Fig. 2 clear. This has on its upper side, ie, the spray lance 1 side facing in a regular division a plurality of wells, which extend with an arcuate course starting from a central region of the distributor disc 8 up to the edge region and leak there.
  • the arcuate depressions extend in the direction of rotation, ie their curvature corresponds to the direction of rotation of the distributor disc 8 in the counterclockwise direction.
  • the cylindrical long body 9 including the distributor disc 8 is driven in rotation by means of a rotary drive 10. Furthermore, the unit of distributor disc 8, cylindrical long body 9 and the rotary drive 10 can be moved linearly by means of a (lower) linear drive 11 in the direction of the longitudinal axis of the cylinder bore 6.
  • the spray lance 1 and the distributor 7 are aligned so that the longitudinal axes of the spray lance 1, the cylindrical long body 9 of the distributor 7 and the cylinder bore 6 are identical.
  • the spray of the spray lance 1 is thus aligned directly on the tip of the helical distributor disc 8.
  • the particles of the coating material striking the rotating distributor disk 8 are detected by the latter and accelerated in a circular path, the transferable centripetal forces, however, being limited by the static friction between the particles and the surface of the distributor disk 8. If the static friction is exceeded, the particles - following the tangentially directed inertial forces - are guided in the depressions in the direction of the edge and moved from there to the surfaces to be coated.
  • the distributor disc 8 thus causes a deflection of the spray jet by about 90 ° in the direction of the surfaces to be coated and an acceleration of the particles.
  • the coating of the cylinder bore 6 is carried out continuously by a synchronous, linear method of the spray lance 1 and the distribution device 7, wherein multiple layers can be generated by a multiple up and down.
  • the distance between the spray lance 1 and the distributor plate 8 is kept constant by a synchronous process of these two elements.
  • the spray lance or the distributor may also be possible for the spray lance or the distributor not to be (or possibly at a different speed than the respective other element) during the coating process. moving linearly, which changes the distance between the two elements during the process.
  • a possibly induced change in the kinetic energy with which the particles would impinge on the surface to be coated due to a changed distance between spray head 2 and distributor disk 8 can optionally be achieved by increasing the air pressure in the compressed air supply 5 of the spray lance 1 or by increasing the speed the distributor disc 8 are compensated.
  • the illustrated coating apparatus further comprises a suction device which serves to remove the overspray generated during coating.
  • the suction device has an upper and a lower Abdichtflansch 12, 13, which are placed on the two openings of the cylinder and each having an additional opening (connecting flanges 15).
  • a (not shown) vacuum hose is connected, through which the resulting overspray during coating is sucked.
  • the second opening air is supplied to the cylinder interior, so that the generation of a vacuum is prevented by the suction device.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Nozzles (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Spray Control Apparatus (AREA)
EP08006774.7A 2007-04-13 2008-04-03 Dispositif de revêtement de composants Active EP1980328B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007017513A DE102007017513A1 (de) 2007-04-13 2007-04-13 Vorrichtung zum Beschichten von Bauteilen

Publications (3)

Publication Number Publication Date
EP1980328A2 true EP1980328A2 (fr) 2008-10-15
EP1980328A3 EP1980328A3 (fr) 2011-12-28
EP1980328B1 EP1980328B1 (fr) 2014-01-15

Family

ID=39587000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08006774.7A Active EP1980328B1 (fr) 2007-04-13 2008-04-03 Dispositif de revêtement de composants

Country Status (2)

Country Link
EP (1) EP1980328B1 (fr)
DE (1) DE102007017513A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014106591A1 (fr) * 2013-01-04 2014-07-10 Ford-Werke Gmbh Dispositif de revêtement thermique d'une surface
EP2979766A1 (fr) * 2014-07-30 2016-02-03 Sturm Maschinen- & Anlagenbau GmbH Dispositif et procédé de revêtement métallique et unité de réception pour le dispositif
EP3047914A1 (fr) 2015-01-20 2016-07-27 Sturm Maschinen- & Anlagenbau GmbH Installation et procédé de revêtement métallique d'une pièce

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841617A1 (de) 1998-09-11 2000-03-23 Daimler Chrysler Ag Rotierende Drahtlichtbogenspritzanlage zur Beschichtung von Innenflächen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109224A3 (fr) * 1982-11-02 1985-08-07 Ransburg Japan Limited Pulvérisateur à cloche rotative
JPH06101012A (ja) * 1992-08-03 1994-04-12 Toyota Motor Corp 内面溶射方法
DE19822301C1 (de) * 1998-05-18 1999-12-09 Preussag Rohrsanierung Gmbh Verfahren und Vorrichtung zum Aufbringen einer Kunststoffschicht auf die Innenflächen von Hohlkörpern
DE10035926C2 (de) * 2000-07-21 2003-09-18 Polymer Chemical Co B V Verfahren zum Aufbringen einer aus mindestens zwei Komponenten bestehenden Kunststoffschicht
JP3801967B2 (ja) * 2001-08-28 2006-07-26 株式会社いけうち ノズルおよび該ノズルによる導管内周面への流体噴射方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841617A1 (de) 1998-09-11 2000-03-23 Daimler Chrysler Ag Rotierende Drahtlichtbogenspritzanlage zur Beschichtung von Innenflächen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014106591A1 (fr) * 2013-01-04 2014-07-10 Ford-Werke Gmbh Dispositif de revêtement thermique d'une surface
CN105051241A (zh) * 2013-01-04 2015-11-11 福特全球技术公司 用于热涂覆表面的装置
US10060020B2 (en) 2013-01-04 2018-08-28 Ford Global Technologies, Llc Device for thermally coating a surface
CN105051241B (zh) * 2013-01-04 2021-07-20 福特全球技术公司 用于热涂覆表面的装置
EP2979766A1 (fr) * 2014-07-30 2016-02-03 Sturm Maschinen- & Anlagenbau GmbH Dispositif et procédé de revêtement métallique et unité de réception pour le dispositif
WO2016015922A1 (fr) 2014-07-30 2016-02-04 Sturm Maschinen- & Anlagenbau Gmbh Dispositif et procédé de revêtement métallique ainsi qu'unité d'accueil pour le dispositif
US10286417B2 (en) 2014-07-30 2019-05-14 Sturm Maschinen- & Anlagenbau Gmbh Metallic coating device and method, and holding unit for the device
EP3047914A1 (fr) 2015-01-20 2016-07-27 Sturm Maschinen- & Anlagenbau GmbH Installation et procédé de revêtement métallique d'une pièce

Also Published As

Publication number Publication date
EP1980328B1 (fr) 2014-01-15
EP1980328A3 (fr) 2011-12-28
DE102007017513A1 (de) 2008-10-16

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