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What is Electrostatic Spraying?
What is Electrostatic Spraying?
Published: 2012/08/25
Channel: dawesartstudio
Electrostatic spray painting
Electrostatic spray painting
Published: 2010/02/16
Channel: highamsparkscience
Electrostatic Painting Demonstration
Electrostatic Painting Demonstration
Published: 2010/05/17
Channel: Ryan Cunningham
19-32: Electrostatic paint sprayer
19-32: Electrostatic paint sprayer
Published: 2016/03/09
Channel: Richard Wong
Electrostatic Spray Coating   Pita Bakery Application
Electrostatic Spray Coating Pita Bakery Application
Published: 2015/11/11
Channel: Spraying Systems Co. Australia
เครื่องพ่นสี (Electrostatic coating)
เครื่องพ่นสี (Electrostatic coating)
Published: 2014/06/29
Channel: Taey R.
Electrostatic Coating Application
Electrostatic Coating Application
Published: 2017/03/24
Channel: Got Paint?
Wagner GM5000 Electrostatic Spray Gun Product Demonstration
Wagner GM5000 Electrostatic Spray Gun Product Demonstration
Published: 2013/05/07
Channel: Wagner Australia
Wagner Electrostatic Paint Spray Demo
Wagner Electrostatic Paint Spray Demo
Published: 2009/01/29
Channel: Kristen Bittner
CM-1000 ELECTROSTATIC POWDER COATING.wmv
CM-1000 ELECTROSTATIC POWDER COATING.wmv
Published: 2010/05/29
Channel: Pete Thomas
American Top Guns Electrostatic Painting Machinery
American Top Guns Electrostatic Painting Machinery
Published: 2013/04/06
Channel: American Top Guns Electrostatic Painting
electrostatic coating for chairs
electrostatic coating for chairs
Published: 2014/03/20
Channel: Dariano Cattarin
Is There Any Electrostatic Powder Coating In Our Future??
Is There Any Electrostatic Powder Coating In Our Future??
Published: 2015/08/31
Channel: FortuneCookie45LC
CM Spray systems for electrostatic coating
CM Spray systems for electrostatic coating
Published: 2014/01/20
Channel: Dariano Cattarin
Electrostatic Coating Demonstration
Electrostatic Coating Demonstration
Published: 2014/05/23
Channel: natewex
DIY Powder Coating
DIY Powder Coating
Published: 2011/06/29
Channel: Jesse Sutton
Auto DISK Electrostatic Coating System
Auto DISK Electrostatic Coating System
Published: 2016/04/21
Channel: Ko Allan
AC Electrostatic grain coating system
AC Electrostatic grain coating system
Published: 2015/02/19
Channel: Elemechtron Engineering
Wagner GM5000 Electrostatic Spray Training and How to Demo Successfully
Wagner GM5000 Electrostatic Spray Training and How to Demo Successfully
Published: 2013/06/29
Channel: Ty Crowder
Electrostatic Spray Coating Application - Video 3
Electrostatic Spray Coating Application - Video 3
Published: 2014/02/14
Channel: Decc Company
vibrating electrostatic powder coating machine
vibrating electrostatic powder coating machine
Published: 2015/07/30
Channel: Wendy Zhang
UV Electrostatic coating Cue Creator
UV Electrostatic coating Cue Creator
Published: 2017/06/03
Channel: Cue Creator & McDermott Cues
DISK Electrostatic Coating
DISK Electrostatic Coating
Published: 2016/12/05
Channel: 紘原工業有限公司 GOODALL Industry Co., LTD.
Electrostatic painting red paint
Electrostatic painting red paint
Published: 2010/01/02
Channel: IwesprayitI
XT- 888 Electrostatic powder coating machine
XT- 888 Electrostatic powder coating machine
Published: 2014/06/06
Channel: Cui Yuan
Electrostatic Painting, Electrostatic Spraying Demo
Electrostatic Painting, Electrostatic Spraying Demo
Published: 2011/06/21
Channel: Vanda Coatings
Electrostatic Coating Ireland
Electrostatic Coating Ireland
Published: 2014/05/02
Channel: natewex
Electrostatic Spray Coating Line
Electrostatic Spray Coating Line
Published: 2016/11/15
Channel: Kerry Lu
Glass Coating Electrostatic Powder Coating Machine
Glass Coating Electrostatic Powder Coating Machine
Published: 2015/09/02
Channel: Anna--Xintu powder coating gun
Toilet Lid Electrostatic Coating Line
Toilet Lid Electrostatic Coating Line
Published: 2017/01/06
Channel: Kerry Lu
Electrostatic Powder Coating - wrap around demonstration using Encore XT spray gun from Nordson
Electrostatic Powder Coating - wrap around demonstration using Encore XT spray gun from Nordson
Published: 2014/10/14
Channel: NordsonICS
Electrostatic Turbo Bell Glass Bottle Spray Painting Demo
Electrostatic Turbo Bell Glass Bottle Spray Painting Demo
Published: 2015/01/17
Channel: JL Decotec
powder coating line,e-coating line,Electrophoresis
powder coating line,e-coating line,Electrophoresis
Published: 2014/10/06
Channel: gordy WU
Electrostatic paint finishing in sheet metal manufacturing
Electrostatic paint finishing in sheet metal manufacturing
Published: 2012/10/02
Channel: Short Run Pro
Electrostatic Coating Ireland Video
Electrostatic Coating Ireland Video
Published: 2014/05/02
Channel: natewex
Electrostatic painting machine manufacturer (electrostatic powder coating machine.)
Electrostatic painting machine manufacturer (electrostatic powder coating machine.)
Published: 2014/06/20
Channel: sooho5284
low price electrostatic spray gun &spray powder coating line spray painting equipment
low price electrostatic spray gun &spray powder coating line spray painting equipment
Published: 2016/02/22
Channel: Chrome Spray
Car Parts Robotic Electrostatic Coating Line
Car Parts Robotic Electrostatic Coating Line
Published: 2016/11/15
Channel: Kerry Lu
Fully Automatic Spray Painting With Electrostatic Coating System
Fully Automatic Spray Painting With Electrostatic Coating System
Published: 2016/12/27
Channel: JL Decotec
Manual powder coating gun small metal containers electrostatic spraying
Manual powder coating gun small metal containers electrostatic spraying
Published: 2017/05/19
Channel: Zeng Catherine
Automatic lacquer electrostatic coating machine spraying
Automatic lacquer electrostatic coating machine spraying
Published: 2017/06/20
Channel: Huang Janny
Electrostatic powder coating - Electrostatic powder coating Gun
Electrostatic powder coating - Electrostatic powder coating Gun
Published: 2012/01/07
Channel: İsmail Baç
TOTAL Electrostatic Powder coating equipment
TOTAL Electrostatic Powder coating equipment
Published: 2014/05/13
Channel: Jiyong Shin
Fujian Wanan Industry Group--China electrostatic powder coating manufacturer
Fujian Wanan Industry Group--China electrostatic powder coating manufacturer
Published: 2017/06/19
Channel: Moklin Lin
powder painting ,electrostatic powder coating
powder painting ,electrostatic powder coating
Published: 2013/05/01
Channel: Sally colo
Electrostatic Painting - A to Z
Electrostatic Painting - A to Z
Published: 2016/10/13
Channel: UnCleT215
Biliris electrostatic paint Athens
Biliris electrostatic paint Athens
Published: 2016/10/05
Channel: Biliris wheels & tires
Powder coating process of transformer ribs with NORDSON Encore electrostatic system
Powder coating process of transformer ribs with NORDSON Encore electrostatic system
Published: 2013/06/27
Channel: Jhon Pretreatment
Electrostatic Coating Ireland Video 3
Electrostatic Coating Ireland Video 3
Published: 2014/05/02
Channel: natewex
Electrostatic Gas Bottles Coating
Electrostatic Gas Bottles Coating
Published: 2014/07/07
Channel: Spray S.A.
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Electrostatic coating is a manufacturing process that employs charged particles to more efficiently paint a workpiece. Paint, in the form of either powdered particles or atomized liquid, is initially projected towards a conductive workpiece using normal spraying methods, and is then accelerated toward the work piece by a powerful electrostatic charge.[1]

An addition to the electrostatic coating (or e-coating) process is dipping electrically conductive parts into a tank of paint that is then electrostatically charged. The ionic bond of the paint to the metal creates the paint coating, in which its thickness is directly proportional to the length of time the parts are left in the tank and the time the charge remains active. Once the parts are removed from the paint tank, they are rinsed off to remove any residual paint that is not ionically bonded, leaving a thin film of electrostatically bonded paint on the surface of the part.

Process characteristics[edit]

  • Uses a high voltage electrostatic charge which is applied to both the workpiece and the sprayer mechanism
  • Uses 95% of sprayed paint due to reduced over-spray and better wrap-around
  • Paint materials can be either powdered or liquid
  • Process can be either automatic or manual
  • Workpieces must be conductive
  • Workpieces are usually baked after coated
  • The baked on paint adheres extremely well and is difficult to remove without aggressive means of removal.

Process[edit]

The workpiece travels down a conveyor belt towards a paint booth, or paint tank, where it is sprayed with, or dipped into, electrostatically charged paint particles. Integrated into a powder paint booth is a powder recovery unit, which recovers between 95% and 100% of the paint over-spray coatings. After the workpiece is coated, it continues on the conveyor belt to an oven, where the paint is cured. The benefits to the process of electrostatic coating is the ability to recover the little over-spray and having the process automated which will cut costs. The reason for the little over spray is the paint particles that do not hit the piece will turn in the air and go back to the piece. There are also some drawbacks to the process: everything in the area of the coating must be grounded to prevent static buildup and can easily arc, damaging the hanging devices and/or the locations where the hanging devices rest on the conveyor. All hangers, conveyors, etc. must be cleaned often to ensure a good ground and prevent anyone in the area from getting a severe shock. In an airborne system, any recesses on the piece that is being coated can be missed because the electrostatic paint is more attracted to corners and sharp edges; this means that another process for coating can be a better option if the piece has recesses. In the dipping process, air entrapment can occur in blind holes and deep recesses, so the positioning of the part as it enters the paint tank is critical in removing any trapped air that will restrict paint coverage. [2]

Workpiece geometry[edit]

The geometry of the workpiece is limited only by the size of the paint booth or tank. Using electrostatic coating, it is possible to apply paint in various thicknesses being limited only by the paints tendency to run and therefore ruin the coating if applied in too thick a manner. It is usually preferred to apply many thin coats as opposed to one thick coat.

Setup and equipment[edit]

The workpiece may be delivered to the coating booth or hangers in any fashion, most commonly using either hands or pliers. After passing through the booth, or tank, and getting coated, the workpiece then either goes into a baking oven or out into the open air to allow the paint to cure on the part. In spray coating, many different spray nozzles may be used depending on the desired paint consistency and the shape of the workpiece.

Typical tools and geometry produced[edit]

There are a wide variety of spray nozzles available for use in electrostatic coating. The type of nozzle used will largely depend on the shape of workpiece to be painted and the consistency of the paint.

References[edit]

  1. ^ Manufacturing Processes Reference Guide, 1st ed. , Robert H. Todd, Dell K. Allen, and Leo Alting, 1994
  2. ^ https://web.archive.org/web/20090118064613/http://www.etfinancial.com/coatingsequip.htm. Archived from the original on January 18, 2009. Retrieved January 11, 2009.  Missing or empty |title= (help)

External links[edit]

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