EP3463675A1 - Élément d'application d'un pulvérisateur rotatif composé d'un matériau à base de mousse, procédé de fabrication dudit élément et procédé de pulvérisation - Google Patents

Élément d'application d'un pulvérisateur rotatif composé d'un matériau à base de mousse, procédé de fabrication dudit élément et procédé de pulvérisation

Info

Publication number
EP3463675A1
EP3463675A1 EP17717740.9A EP17717740A EP3463675A1 EP 3463675 A1 EP3463675 A1 EP 3463675A1 EP 17717740 A EP17717740 A EP 17717740A EP 3463675 A1 EP3463675 A1 EP 3463675A1
Authority
EP
European Patent Office
Prior art keywords
application
application component
cellular structures
foam
base 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.)
Withdrawn
Application number
EP17717740.9A
Other languages
German (de)
English (en)
Inventor
Svenja Vetter
Herbert Schulze
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.)
Eisenmann SE
Original Assignee
Eisenmann SE
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 Eisenmann SE filed Critical Eisenmann SE
Publication of EP3463675A1 publication Critical patent/EP3463675A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/18—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • the invention relates to an application component for a rotary atomizer having a base body which has an outflow surface for an application material to be atomized.
  • the invention further relates to a method for producing such an application component and a method for coating objects with a rotary atomizer having such an application component.
  • rotary atomizers are often used as application devices.
  • Such rotary atomizers have a rapidly rotating application component, such as a bell cup or a spray disk on.
  • the material to be applied is applied via a central channel to the outflow surface of the application component, on which the material to be applied is moved outward, atomized and sprayed due to the centrifugal forces acting.
  • the rotating application component In order to keep the mechanical requirements on the drive, the storage and an industrial robot carrying the application device as low as possible, the rotating application component should have the lowest possible weight and yet have sufficient mechanical strength to absorb the centrifugal forces occurring.
  • this object is achieved by an application component mentioned at the outset, in which the basic body is formed at least partially in its interior from a material having cellular structures.
  • the inventors have recognized that the use of a material with cellular structures over an application component made of solid material is advantageous in order to achieve a weight reduction.
  • cellular structures are understood to mean structures which have a large number of small cavities, preferably with diameters of less than 5 mm, in particular less than 2 mm.
  • a material with cellular structures can have a quotient of bulk density to pure density (also called relative density), which can be between 10% and 60%, in particular between 30% and 50%.
  • Bulk density is understood to mean the density of a solid based on the volume including the cavities. The true density, however, refers to the actual solid material and is often referred to as mass density.
  • the cellular structures have mutually supporting thin-walled intermediate webs, so that a base body made of a material with cellular structures in comparison to a formed as a hollow body with the same density has a significantly higher strength.
  • the basic body can have almost completely but only in some areas a material with cellular structures.
  • Materials with cellular structures include, for example, cellular materials having foam, fiber, wire, hollow, honeycomb, and the like having open or closed cavities.
  • the material with cellular structures can also be formed from a material having a higher or the same true density as a material used on the base body for an outer strength sheath.
  • the main body itself can thus comprise two different materials.
  • the material with cellular structures is a metal foam, in particular an aluminum metal foam, a plastic foam and / or a ceramic foam.
  • foams make it possible to produce the cellular structures in a relatively simple manner.
  • cellular structures can also be targeted structures such as honeycomb structures or the like. Foams are particularly advantageous, however, because they can have high strengths at low densities.
  • the material having cellular structures comprises two different materials.
  • the cavities of the cellular structures can thus be filled with another, in particular lighter, material than the material which forms the intermediate webs.
  • the mechanical properties of the body can be optimized even better.
  • the cellular structures have a defined internal geometry. This is the case, for example, with a hexagonal honeycomb structure or the like.
  • the internal geometry of a foam is not defined because it is not possible to determine in the production process what size and shape an individual pore will ultimately have.
  • a defined internal geometry is particularly advantageous for a defined weight distribution within the body. Since the weight distribution influences the moment of inertia and thus the smoothness of the application component, a predictable weight distribution is relevant.
  • a method for producing an application component for a rotary atomizer with the following steps: a) Production of the application component with a base body which has an outflow surface for an application material to be atomized and whose interior is at least partially formed from a material with cellular structures ,
  • the production of the base body comprises the following steps: a) providing a casting mold which predetermines the outer contour of the base body; b) injection molding a solid material provided with a blowing agent.
  • base bodies which, at least in some areas, have foam materials as material with cellular structures.
  • the production of the main body comprises an integral foam casting, in particular integral metal foam casting.
  • This may be high pressure integral foam casting or low pressure integral foam casting.
  • a base body can be produced, which has a compact outer area and yet consists in its interior of a lightweight foam material.
  • the production of the base body comprises a generative manufacturing method for producing the cellular structures.
  • SD printing method preferably 3D metal printing process in question.
  • the main body can be generated in one step, together with the cellular structures in the interior of a material, such as a metal alloy.
  • the fault surface can be processed (grinding, lapping, etc.) or provided with special friction and / or wear-reducing coatings.
  • the object according to the invention is achieved by the following steps: a) provision of an application device with an application component according to the invention; b) Coating the objects using the application device.
  • the application component should be made of an electrically conductive material or wear a corresponding coating.
  • Figure 2 shows a section through a rotary atomizer with a bell cup having a foam-filled hollow body as a bell cup; 3 shows a section through a rotary atomizer with a bell plate made of integral foam.
  • FIG. 1 shows a rotary atomizer 10 which has a bell cup 14, which is mounted on a bearing 12 and rapidly rotates during operation, as an application component.
  • the bell cup 14 has a base body 16, the mass of which constitutes a major part of the entire rotating mass.
  • a substantially inwardly cone-shaped outflow surface 18 is provided, which is supplied from a feed tube 20 starting to be applied coating material.
  • the base body 16 is at least in its inner region, as indicated by the checkered hatching, made of a foam material 22, in particular a high-strength aluminum foam alloy.
  • a foam material 22 is a material with cellular structures.
  • For the main body 16 has in its interior a plurality of hollow cavities, the foam pores 24, on whose intermediate webs 26 support each other.
  • the main body 16 also has an outer skin 28 which encloses the inner region of the main body 16 smooth.
  • the outer skin 28 of the main body 16 is further provided with a non-recognizable in the figure, friction and wear-reducing coating.
  • FIG. 2 shows a rotary atomizer 1 10, which also has a mounted on a bearing 1 12 bell cup 1 14.
  • the bell cup 1 14 in this case has a base body 1 16, in which an outer region 130, from a solid material, such as a high-strength aluminum alloy, is formed.
  • an interior region comprises a foam material 122, in particular a foamed aluminum alloy, which comprises a foam material has identical or greater true density than the aluminum alloy of the solid outer region 130. Due to the cavities of the foam material 122, however, there is a smaller bulk density in the interior than in the outside area.
  • a bell cup 1 14 can be made, for example, in sandwich construction.
  • FIG. 3 shows a rotary atomizer 210, in which the main body 216 of the bell cup 214 is designed as an integral foam component.
  • an exterior area made of a solid material continuously merges into an interior area of foam material 222.
  • Such an integral foam component can be manufactured by high-pressure or low-pressure integral foam casting.
  • a mold In the low pressure process, a mold is underfilled with a blowing agent added melt. The foaming melt then fills the mold. Due to the strong cooling on the mold wall creates a compact outdoor area of solid material. Depending on the process control and blowing agent concentration, the thickness of the exterior area can be influenced.
  • the mold In the high pressure process, the mold is first completely filled under pressure. After a time delay, an enlargement of the mold volume takes place, for example, by a core pull. As a result, the pressure drops abruptly and dissolved in the melt gases can expand in the not yet solidified interior and foam the melt.
  • the base body 216 of the bell cup 214 can be produced in a single casting step.
  • honeycomb structures in the manner of a honeycomb may be provided in the interior region of the main body 14.
  • honeycomb structures can be produced via a generative manufacturing method, such as, for example, a 3D metal printing method, so that the basic body can also be produced essentially in one step.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Nozzles (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne un élément d'application (214) destiné à un pulvérisateur rotatif (210), muni d'un corps de base (216) qui présente une surface de flux sortant (218) d'un matériau d'application à pulvériser. L'invention vise à obtenir un poids le moins élevé possible pour une résistance la plus élevée possible. À cet effet, l'intérieur du corps de base (216) est formé au moins par endroits d'un matériau (222) présentant des structures cellulaires. Le procédé de fabrication de l'élément peut être entre autres un procédé de coulée intégrale de mousse, en particulier de coulée intégrale de mousse métallique, ou un procédé additif.
EP17717740.9A 2016-05-24 2017-04-18 Élément d'application d'un pulvérisateur rotatif composé d'un matériau à base de mousse, procédé de fabrication dudit élément et procédé de pulvérisation Withdrawn EP3463675A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016006177.4A DE102016006177A1 (de) 2016-05-24 2016-05-24 Applikationsbauteil aus Schaum
PCT/EP2017/059177 WO2017202544A1 (fr) 2016-05-24 2017-04-18 Élément d'application d'un pulvérisateur rotatif composé d'un matériau à base de mousse, procédé de fabrication dudit élément et procédé de pulvérisation

Publications (1)

Publication Number Publication Date
EP3463675A1 true EP3463675A1 (fr) 2019-04-10

Family

ID=58548727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17717740.9A Withdrawn EP3463675A1 (fr) 2016-05-24 2017-04-18 Élément d'application d'un pulvérisateur rotatif composé d'un matériau à base de mousse, procédé de fabrication dudit élément et procédé de pulvérisation

Country Status (5)

Country Link
US (1) US20190247872A1 (fr)
EP (1) EP3463675A1 (fr)
CN (1) CN109153026A (fr)
DE (1) DE102016006177A1 (fr)
WO (1) WO2017202544A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101634298B1 (ko) * 2016-01-20 2016-06-30 박상은 더블 벨컵
GB2563054B (en) * 2017-06-01 2022-04-20 Novanta Tech Uk Limited Rotary atomiser bell cups

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0200258A3 (fr) * 1985-04-29 1988-02-03 Jean Michel Anthony Dispositif de pulvérisation ultrasonique
DE3634443A1 (de) * 1986-10-09 1988-04-21 Lactec Ges Fuer Moderne Lackte Vorrichtung zum elektrostatischen aufbringen von fliessfaehigen medien
SU1597224A2 (ru) * 1989-01-19 1990-10-07 Предприятие П/Я В-8525 Форсунка
JPH1110028A (ja) * 1997-06-23 1999-01-19 Fuji Photo Film Co Ltd 回転型霧化塗装装置及びこれを用いた静電塗装方法
JP2001162196A (ja) * 1999-12-07 2001-06-19 Anest Iwata Corp 回転静電塗装機の液供給方法
DE10161348A1 (de) * 2001-12-13 2003-06-26 Trw Automotive Safety Sys Gmbh Fahrzeuglenkrad
JP4826280B2 (ja) * 2006-02-22 2011-11-30 日産自動車株式会社 回転霧化頭および回転霧化頭の設計方法
DE102007004156A1 (de) * 2007-01-22 2008-07-24 Rüter, Rudi Glocke für einen Rotationszerstäuber
DE202007015115U1 (de) * 2007-01-22 2008-04-17 Rüter, Rudi Glocke für einen Rotationszerstäuber
KR20110081144A (ko) * 2008-09-09 2011-07-13 네뷸러 그룹 (비브이아이) 리미티드 금속 발포체 삽입물을 구비한 회전식 분무장치
DE102008047118B4 (de) * 2008-09-15 2024-02-01 Dürr Systems Ag Lackieranlagenbauteil
DE102008056411A1 (de) * 2008-11-07 2010-05-20 Dürr Systems GmbH Beschichtungsanlagenbauteil, insbesondere Glockenteller, und entsprechendes Herstellungsverfahren
WO2011129677A1 (fr) * 2010-04-12 2011-10-20 Nebula Group (Bvi) Limited Ensemble rotor pour atomiseur rotatif
JP5733996B2 (ja) * 2011-01-27 2015-06-10 本田技研工業株式会社 回転霧化式塗装装置
DE102014118178A1 (de) * 2013-12-19 2015-06-25 Mayser Gmbh & Co. Kg Verfahren zum Herstellen einer metallischen Struktur

Also Published As

Publication number Publication date
DE102016006177A1 (de) 2017-11-30
WO2017202544A1 (fr) 2017-11-30
US20190247872A1 (en) 2019-08-15
CN109153026A (zh) 2019-01-04

Similar Documents

Publication Publication Date Title
EP3259381B1 (fr) Procédé pour la fabrication d'un élément par pulvérisation thermique et installation pour la fabrication d'un élément au moyen d'un dispositif pour la pulvérisation thermique
DE4426627A1 (de) Metallischer Verbundwerkstoff und Verfahren zu seiner Herstellung
DE102013218223A1 (de) Verfahren für die Herstellung eines Bauteils für ein Fahrzeug
EP3397413A1 (fr) Procédé de fabrication d'éléments de paroi d'un corps dans le cas de réservoirs à fluide sous pression
DE102013003167A1 (de) Verfahren zur Herstellung eines dreidimensionalen Gegenstandes durch generativen Aufbau
DE102015216802A1 (de) Verfahren zum Herstellen einer Kapsel für ein heiß-isostatisches Pressen
WO2017202544A1 (fr) Élément d'application d'un pulvérisateur rotatif composé d'un matériau à base de mousse, procédé de fabrication dudit élément et procédé de pulvérisation
DE19959598A1 (de) Verfahren zum Herstellen einer Schaufel einer Strömungsmaschine
DE102016201369A1 (de) Vorrichtung, Anlage und Verfahren zur additiven Herstellung eines Bauteils
CH706237A1 (de) Verfahren zum Herstellen von Bauteilen aus faserverstärktem Verbundwerkstoff.
WO2020038929A1 (fr) Procédé pour produire un corps à enveloppe tubulaire légère et corps à enveloppe tubulaire légère
WO2016124502A1 (fr) Procédé et dispositif de fabrication additive de pièces
WO2017055563A1 (fr) Procédé de formation de corps volumiques
AT398286B (de) Hartmetall- oder keramikrohling sowie verfahren und werkzeug zur herstellung desselben
WO2018082740A1 (fr) Élément bille destiné à être utilisé avec un roulement et procédé pour la fabrication d'un élément de ce type
DE102013216439A1 (de) Verfahren zum Erzeugen eines schalenförmigen Bauteils sowie zur Anwendung dieses Verfahrens geeignete Herstellungsanlage
WO2006084558A1 (fr) Joint a rotule et son procede de production
EP1670627B1 (fr) Outil de formage pour produire des corps moules en mousse
EP3485056B1 (fr) Revetement d'alesages cylindriques sans activation prealable de la surface
DE102021105991A1 (de) Verfahren zur Herstellung eines dreidimensionalen Bauteils
WO2011098065A1 (fr) Procédé de fabrication d'une pièce, et pièce correspondante
WO2019175202A1 (fr) Procédé de fabrication d'une structure de distribution poreuse
EP2767379B1 (fr) Procédé de fabrication d'une âme de sandwich en matériau expansé et utilisation du procédé
DE3815616A1 (de) Verfahren und formwerkzeug zum herstellen von formteilen aus einem fluessigen reaktionsgemisch
AT525599B1 (de) Verfahren zur Herstellung eines Bauteils aus einem Metallpulver und/oder Keramikpulver

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
19U Interruption of proceedings before grant

Effective date: 20190731

19W Proceedings resumed before grant after interruption of proceedings

Effective date: 20200803

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20201110

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20210304