EP0314049A3 - Powder spray gun with electrocinetic charging - Google Patents
Powder spray gun with electrocinetic charging Download PDFInfo
- Publication number
- EP0314049A3 EP0314049A3 EP88117691A EP88117691A EP0314049A3 EP 0314049 A3 EP0314049 A3 EP 0314049A3 EP 88117691 A EP88117691 A EP 88117691A EP 88117691 A EP88117691 A EP 88117691A EP 0314049 A3 EP0314049 A3 EP 0314049A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- charging
- spray gun
- powder
- insulating material
- electrocinetic
- 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- Withdrawn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
- 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
- B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Die Erfindung botrifft eine Sprühpistole mit elektrokineti scher Aufladung von pulverförmigem Material zum Zweck der elektrostatischen Beschichtung von Werkstücken mit Pulver lack. Das aufzutragende Plastpulvor wird beim pneumatischen Durchströmen eines ringspaltförmigen Isolierstoffkanals (8, 10) durch Überlagerung von triboelektrischen Effekten mit von diesen an einer passiven Ionisatorelektrode (61) ausgelösten Ionisationsprozessen aufgeladen. The invention relates to a spray gun with elektrokineti sheer charging of powdered material for the purpose of electrostatic coating of workpieces with powder paint. The plastic powder to be applied is used in the pneumatic Flowing through an annular-shaped insulating material channel (8, 10) by overlaying triboelectric effects with von triggered on a passive ionizer electrode (61) Ionization processes charged.
Erfindungsgemäß enthält der im Isolierstoffkanal (8, 10) angeordne te längliche Strömungsleitkörper (9, 10, 11) einen oder mehrere Abschnit te, die aus elektrisch halbleitendem Material bestehen oder eine solche Oberfläche besitzen und gegen die Ionisator elektrode und untereinander elektrisch isoliert sind. Da durch werden der Wirkungsbereich des Influenzionisators er weitert, die Pulveraufladung erhöht und funkenähnliche Gleitentladungen im Strömungskanal sowie Durchschläge der Kanalwand verhindert. According to the invention, the one in the insulating material duct (8, 10) contains te elongated flow guide (9, 10, 11) one or more sections te, which consist of electrically semiconducting material or possess such a surface and against the ionizer electrode and are electrically insulated from each other. There through he become the sphere of influence of the influencer continues, the powder charge increases and spark-like Sliding discharges in the flow channel and breakdowns of the Canal wall prevented.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD308300 | 1987-10-27 | ||
DD87308300A DD271611A3 (en) | 1987-10-27 | 1987-10-27 | SPRAY GUN WITH ELECTRIC KINETIC POWDER RECHARGE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0314049A2 EP0314049A2 (en) | 1989-05-03 |
EP0314049A3 true EP0314049A3 (en) | 1990-01-31 |
Family
ID=5593344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88117691A Withdrawn EP0314049A3 (en) | 1987-10-27 | 1988-10-24 | Powder spray gun with electrocinetic charging |
Country Status (6)
Country | Link |
---|---|
US (1) | US4979680A (en) |
EP (1) | EP0314049A3 (en) |
JP (1) | JPH01148354A (en) |
CA (1) | CA1336130C (en) |
DD (1) | DD271611A3 (en) |
HU (1) | HU198406B (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE460643B (en) * | 1987-04-28 | 1989-11-06 | Ac Greiff Ytbehandling Ab | POWDER SPRAY DEVICE WITH A LONG-TURNED RINGOUS CHARGING CHANNEL |
WO1992011950A1 (en) * | 1991-01-11 | 1992-07-23 | Jason Industries Limited | Powder fluidising system |
DE4141663C2 (en) * | 1991-12-17 | 1996-09-19 | Wagner Int | Electrostatic powder coating gun |
US5344082A (en) * | 1992-10-05 | 1994-09-06 | Nordson Corporation | Tribo-electric powder spray gun |
GB9225098D0 (en) | 1992-12-01 | 1993-01-20 | Coffee Ronald A | Charged droplet spray mixer |
US6880554B1 (en) * | 1992-12-22 | 2005-04-19 | Battelle Memorial Institute | Dispensing device |
US6105571A (en) * | 1992-12-22 | 2000-08-22 | Electrosols, Ltd. | Dispensing device |
EP0627265B1 (en) * | 1993-06-02 | 1998-01-21 | Matsuo Sangyo Co., Ltd. | Frictional electrification gun |
US5395046A (en) * | 1993-10-25 | 1995-03-07 | Nordson Corporation | Hand-held spray gun with replaceable handle |
GB9406255D0 (en) * | 1994-03-29 | 1994-05-18 | Electrosols Ltd | Dispensing device |
GB9406171D0 (en) * | 1994-03-29 | 1994-05-18 | Electrosols Ltd | Dispensing device |
GB9410658D0 (en) * | 1994-05-27 | 1994-07-13 | Electrosols Ltd | Dispensing device |
US5620138A (en) * | 1994-11-09 | 1997-04-15 | Nordson Corporation | Powder coating gun mounted diffuser and air cooled heat sink in combination with low flow powder pump improvements |
DE29500914U1 (en) * | 1995-01-21 | 1995-03-09 | Ophardt Technik KG, 47661 Issum | Device for the triboelectric charging of powdery substances |
US5622313A (en) * | 1995-03-03 | 1997-04-22 | Nordson Corporation | Triboelectric powder spray gun with internal discharge electrode and method of powder coating |
US5795626A (en) * | 1995-04-28 | 1998-08-18 | Innovative Technology Inc. | Coating or ablation applicator with a debris recovery attachment |
FR2750897B1 (en) * | 1996-07-10 | 1998-09-18 | Sames Sa | TRIBOELECTRIC PROJECTOR, COATING PRODUCT PROJECTION INSTALLATION AND METHOD FOR CONTROLLING SUCH A PROJECTOR |
US7193124B2 (en) | 1997-07-22 | 2007-03-20 | Battelle Memorial Institute | Method for forming material |
US6252129B1 (en) | 1996-07-23 | 2001-06-26 | Electrosols, Ltd. | Dispensing device and method for forming material |
GB2327895B (en) | 1997-08-08 | 2001-08-08 | Electrosols Ltd | A dispensing device |
US20040011901A1 (en) * | 2000-07-10 | 2004-01-22 | Rehman William R. | Unipolarity powder coating systems including improved tribocharging and corona guns |
US6645300B2 (en) | 2000-07-11 | 2003-11-11 | Nordson Corporation | Unipolarity powder coating systems including improved tribocharging and corona guns |
US20030038193A1 (en) * | 2000-07-11 | 2003-02-27 | Rehman William R. | Unipolarity powder coating systems including improved tribocharging and corona guns |
FR2820344B1 (en) | 2001-02-08 | 2003-03-14 | Eisenmann France Sarl | TRIBOELECTRIC SPRAYER |
US20040159282A1 (en) * | 2002-05-06 | 2004-08-19 | Sanner Michael R | Unipolarity powder coating systems including improved tribocharging and corona guns |
WO2006115122A1 (en) * | 2005-04-20 | 2006-11-02 | Kyoto University | Particle charging controlling device and method |
CN109647644B (en) * | 2019-01-17 | 2024-04-02 | 常德天工机械有限公司 | Spray gun for spraying paint inside air cylinder and paint spraying method |
CN113000238A (en) * | 2021-03-09 | 2021-06-22 | 马鞍山星苗智能装备有限公司 | Electrostatic friction spray gun |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555547B2 (en) * | 1975-12-10 | 1978-07-27 | Hajtomuevek Es Festoeberendezesek, Gyara, Budapest | Device for the electrostatic application or spraying of material particles |
DD134841A1 (en) * | 1978-03-22 | 1979-03-28 | Peter Dressler | APPARATUS FOR ELECTROKINETIC COATING WITH POWDER AND FIBER SOFT PARTICLES |
DE3420325A1 (en) * | 1984-05-30 | 1985-12-05 | Ransburg-Gema AG, St.Gallen | SPRAYING DEVICE FOR COATING ITEMS WITH POWDER |
DD232595A3 (en) * | 1984-02-08 | 1986-02-05 | Verkehrswesen Hochschule | DEVICE FOR ELECTROKINETIC CHARGING OF POWDER-FUSED SUBSTANCES |
DE3600808A1 (en) * | 1986-01-14 | 1987-07-16 | Esb Voehringer | ELECTROSTATIC POWDER SPRAYING DEVICE WITH TRIBOELECTRIC POWDER CHARGING |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE134841C (en) * | ||||
DE106308C (en) * | ||||
US4090666A (en) * | 1976-05-19 | 1978-05-23 | Coors Container Company | Gun for tribo charging powder |
US4135667A (en) * | 1977-03-23 | 1979-01-23 | Hajtomuvek Es Festoberendezesek Gyara | Apparatus for the electrostatic coating of workpieces |
SU761016A1 (en) * | 1978-10-10 | 1980-09-07 | Aleksandr Dubson | Apparatus for applying polymer powdered coating in electric field |
SU927327A1 (en) * | 1980-09-08 | 1982-05-15 | Московский Лесотехнический Институт | Electrostatic spraying gun |
US4498631A (en) * | 1981-10-13 | 1985-02-12 | Energy Innovations, Inc. | Electrogasdynamic coating system |
GB2118865B (en) * | 1982-04-20 | 1985-09-25 | Electropaint Ltd | Coating apparatus |
DE3412694A1 (en) * | 1983-04-07 | 1984-10-11 | Kopperschmidt-Mueller GmbH & Co KG, 7057 Winnenden | METHOD AND DEVICE FOR ELECTROSTATICALLY SPRAYING ON POWDER PARTICLES ON A SURFACE TO BE COATED |
JPS6282858A (en) * | 1985-10-08 | 1987-04-16 | Fuji Electric Co Ltd | Network control system |
-
1987
- 1987-10-27 DD DD87308300A patent/DD271611A3/en not_active IP Right Cessation
-
1988
- 1988-09-28 HU HU885035A patent/HU198406B/en not_active IP Right Cessation
- 1988-10-24 EP EP88117691A patent/EP0314049A3/en not_active Withdrawn
- 1988-10-26 CA CA000581368A patent/CA1336130C/en not_active Expired - Fee Related
- 1988-10-27 US US07/263,274 patent/US4979680A/en not_active Expired - Fee Related
- 1988-10-27 JP JP63269624A patent/JPH01148354A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555547B2 (en) * | 1975-12-10 | 1978-07-27 | Hajtomuevek Es Festoeberendezesek, Gyara, Budapest | Device for the electrostatic application or spraying of material particles |
DD134841A1 (en) * | 1978-03-22 | 1979-03-28 | Peter Dressler | APPARATUS FOR ELECTROKINETIC COATING WITH POWDER AND FIBER SOFT PARTICLES |
DD232595A3 (en) * | 1984-02-08 | 1986-02-05 | Verkehrswesen Hochschule | DEVICE FOR ELECTROKINETIC CHARGING OF POWDER-FUSED SUBSTANCES |
DE3420325A1 (en) * | 1984-05-30 | 1985-12-05 | Ransburg-Gema AG, St.Gallen | SPRAYING DEVICE FOR COATING ITEMS WITH POWDER |
DE3600808A1 (en) * | 1986-01-14 | 1987-07-16 | Esb Voehringer | ELECTROSTATIC POWDER SPRAYING DEVICE WITH TRIBOELECTRIC POWDER CHARGING |
Also Published As
Publication number | Publication date |
---|---|
CA1336130C (en) | 1995-07-04 |
EP0314049A2 (en) | 1989-05-03 |
HUT48134A (en) | 1989-05-29 |
HU198406B (en) | 1989-10-30 |
US4979680A (en) | 1990-12-25 |
JPH01148354A (en) | 1989-06-09 |
DD271611A3 (en) | 1989-09-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0314049A3 (en) | Powder spray gun with electrocinetic charging | |
DE69530602T2 (en) | DEVICE AND METHOD FOR COATING SUBSTRATES WITH RESIN POWDER PARTICLES CHARGED BY INDUCTION | |
DE2022088A1 (en) | Device for the electrostatic application of protective layers from plastic powder by means of a spray gun | |
DE2646798A1 (en) | Electric charging device for liq. or solid particles in air stream - has particles charged with one polarity by first electrode and with opposite polarity by second electrode | |
DE3721703A1 (en) | METHOD AND DEVICE FOR LACQUERING WORKPIECES WITH ELECTRICALLY INSULATING SURFACE BY ELECTROSTATIC APPLICATION OR. SPRAY ORDER | |
EP0127376A3 (en) | Apparatus for electrostatic coating of poorly conductive and non-conductive materials | |
ES463417A1 (en) | Electrostatic spraying apparatus | |
DE2247701A1 (en) | METHOD AND DEVICE FOR APPLYING SOLID OR LIQUID PARTICLES TO SURFACES BY USING ELECTRIC FIELD FORCE | |
CA965943A (en) | Electrostatic spray coating apparatus | |
GB976027A (en) | Method and apparatus for electrostatic charging | |
DE766247C (en) | Process for coating metallic objects by melting on corrosion protection substances in powder form | |
DE3173660D1 (en) | Coating compositions including a latex and a coalescing agent, production thereof and coatings so formed | |
ES351147A1 (en) | Method of electrostatically spray coating articles with a liquid coating material | |
JPS5298040A (en) | Method of electrostatically applying powder paint | |
AU1727270A (en) | Pretreatment coating composition for electrostatic spraying including activable pigment and method. | |
DE2508298A1 (en) | Plastic pipe with conducting coating - consisting of bonded thermosetting resin containing sufficient conducting particles to impart conductivity | |
GB1017859A (en) | Improvements in and relating to electrostatic spray-coating methods and apparatus | |
DE973804C (en) | Process for the production of coatings on cathodes of electrical discharge vessels | |
JPS51119738A (en) | Electrostatic powder coating | |
DE1050693B (en) | Electrostatic spray system | |
DE2306159C3 (en) | Electrophotographic recording material | |
DE2951531A1 (en) | Electrostatic paint sprayer field uniformity device - includes control electrode around spray head compensating for edge effect | |
AT282777B (en) | Process for producing adhesive plastic coatings | |
JPS629388B2 (en) | ||
JPS5359738A (en) | Continuous electrostatic powder coating and its equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT CH DE FR GB IT LI SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT CH DE FR GB IT LI SE |
|
17P | Request for examination filed |
Effective date: 19900622 |
|
17Q | First examination report despatched |
Effective date: 19910610 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19930503 |