EP3463675A1 - Applikationsbauteil eines rotationszerstäubers aus schaummaterial und dessen herstellungsverfahren und anwendungssprühverfahren - Google Patents
Applikationsbauteil eines rotationszerstäubers aus schaummaterial und dessen herstellungsverfahren und anwendungssprühverfahrenInfo
- 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- Withdrawn
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
Description
Claims
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 (de) | 2016-05-24 | 2017-04-18 | Applikationsbauteil eines rotationszerstäubers aus schaummaterial und dessen herstellungsverfahren und anwendungssprühverfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3463675A1 true EP3463675A1 (de) | 2019-04-10 |
Family
ID=58548727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17717740.9A Withdrawn EP3463675A1 (de) | 2016-05-24 | 2017-04-18 | Applikationsbauteil eines rotationszerstäubers aus schaummaterial und dessen herstellungsverfahren und anwendungssprühverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190247872A1 (de) |
EP (1) | EP3463675A1 (de) |
CN (1) | CN109153026A (de) |
DE (1) | DE102016006177A1 (de) |
WO (1) | WO2017202544A1 (de) |
Families Citing this family (2)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200258A3 (de) * | 1985-04-29 | 1988-02-03 | Jean Michel Anthony | Ultraschallspritzvorrichtung |
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 |
DE202007015115U1 (de) * | 2007-01-22 | 2008-04-17 | Rüter, Rudi | Glocke für einen Rotationszerstäuber |
DE102007004156A1 (de) * | 2007-01-22 | 2008-07-24 | Rüter, Rudi | Glocke für einen Rotationszerstäuber |
EP2334441A1 (de) * | 2008-09-09 | 2011-06-22 | Nebula Group (BVI) Limited | Drehzerstäuber mit metallschaumeinsätzen |
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 (en) * | 2010-04-12 | 2011-10-20 | Nebula Group (Bvi) Limited | Rotor assembly for a rotary atomizer |
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 |
-
2016
- 2016-05-24 DE DE102016006177.4A patent/DE102016006177A1/de not_active Withdrawn
-
2017
- 2017-04-18 US US16/303,713 patent/US20190247872A1/en not_active Abandoned
- 2017-04-18 EP EP17717740.9A patent/EP3463675A1/de not_active Withdrawn
- 2017-04-18 CN CN201780031220.2A patent/CN109153026A/zh active Pending
- 2017-04-18 WO PCT/EP2017/059177 patent/WO2017202544A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
CN109153026A (zh) | 2019-01-04 |
DE102016006177A1 (de) | 2017-11-30 |
WO2017202544A1 (de) | 2017-11-30 |
US20190247872A1 (en) | 2019-08-15 |
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