Skip to content
FacebookLinkedinTwitterGoogle+Instagram
Hanna Technology
Hanna Technology
Powder Coating Line | Paint Spraying Equipment

Provide the best powder coating system solution

WhatsApp:+86 186 3213 8668sales@powderspraymachine.com
keywords
  • Home
  • About Us
    • About Us
    • Factory Show
    • EXPO
    • Cooperation Customers
  • Products
    • Powder Coating Line
      • Automatic Powder Coating Equipment
      • Manual Powder Coating Line
      • Power And Free Powder Coating Line
    • Powder Coating (Painting) Robot
      • Drag Teaching Programming Robot
      • Visual Automatic Programming Robot
    • Pretreatment System
      • Online Spray Pretreatment
      • Dip Tank Pretreatment
    • Powder Coating Booth
      • Fast Color Change Booth
      • Filter Recovery Powder Coating Booth
    • Powder Coating Oven
      • Camel Back Curing Oven
      • Tunnel Powder Coating Oven
      • Batch Powder Curing Oven
    • Conveyor Chain
      • Automatic Conveyor
      • Power And Free Conveyor
      • Manual Conveyor System
    • Electrocoating Line
    • Electrical Control System
    • Manual Powder Coating Machine
    • Liquid Painting Line
    • Powder Dip Coating Line
    • Powder Coating Powder
    • Powder Coating Machine Parts
  • Application
  • Service and After Sales
    • Service and After Sales
    • Quality Assurance And Service Content
    • Complaints and Feedback
  • Video
  • News
  • Contact
Hanna Technology
  • Home
  • About Us
    • About Us
    • Factory Show
    • EXPO
    • Cooperation Customers
  • Products
    • Powder Coating Line
      • Automatic Powder Coating Equipment
      • Manual Powder Coating Line
      • Power And Free Powder Coating Line
    • Powder Coating (Painting) Robot
      • Drag Teaching Programming Robot
      • Visual Automatic Programming Robot
    • Pretreatment System
      • Online Spray Pretreatment
      • Dip Tank Pretreatment
    • Powder Coating Booth
      • Fast Color Change Booth
      • Filter Recovery Powder Coating Booth
    • Powder Coating Oven
      • Camel Back Curing Oven
      • Tunnel Powder Coating Oven
      • Batch Powder Curing Oven
    • Conveyor Chain
      • Automatic Conveyor
      • Power And Free Conveyor
      • Manual Conveyor System
    • Electrocoating Line
    • Electrical Control System
    • Manual Powder Coating Machine
    • Liquid Painting Line
    • Powder Dip Coating Line
    • Powder Coating Powder
    • Powder Coating Machine Parts
  • Application
  • Service and After Sales
    • Service and After Sales
    • Quality Assurance And Service Content
    • Complaints and Feedback
  • Video
  • News
  • Contact

Powder coating principle and film thickness control method

Introduction to Powder Coating

Powder coating is a surface coating technology widely used in industrial manufacturing to provide strong, durable and high quality coatings for corrosion prevention, landscaping and protection of workpiece surfaces.

In powder coating, it is crucial to understand the principles and how to effectively control the film thickness of the coating. In this article, we will discuss the basic principles of powder coating and introduce several common methods of film thickness control.

washing after pretreatment of e coating line-1-2_副本

Principles of Powder Coating

The principle of powder coating is based on the processes of electrostatic adsorption and melt curing. The following are the basic steps of powder coating.

  1. Powder spraying: At the beginning of powder coating, the powder coating is uniformly sprayed onto the surface of the work piece to be coated by means of a spray gun. The powder particles have an electrostatic charge. 2.
  2. Electrostatic field adsorption: The sprayed powder particles are adsorbed by an electrostatic field onto the surface of the workpiece. Usually, the workpiece is connected to the ground and the spray gun is positively charged so that the powder particles are attracted to the workpiece.
  3. Baking and melting: The coated workpiece is heated in an oven to melt the powder particles and form the coating. After melting, the coating cures and forms a solid coating. 4.
  4. Cooling and curing: The coating is cooled and becomes robust. The whole process is very fast and allows efficient production.
Powder Coating Equipment Manufacturer- (9)

Film Thickness Control Methods

Controlling the film thickness of the coating is essential to ensure the quality of the coating. The following are some common methods used to control film thickness:

  1. Spray Distance Control: Controlling the distance between the spray gun and the workpiece is critical to controlling film thickness. Moving the gun closer to the part produces a thicker coating, while moving the gun away from the part produces a thinner coating. By adjusting the distance, film thickness control can be achieved. 2.
  2. Spray Speed Control: Controlling spray speed is another way to control film thickness. Faster spray speeds usually produce thinner coatings, while slower speeds produce thicker coatings. 3.
  3. Powder Coating Particle Size and Flow Control: The particle size and flow of the powder also affects the film thickness of the coating. Finer particles and higher flow rates usually produce thicker coatings, whereas coarser particles and lower flow rates produce thinner coatings.
  4. Multi-layer coating: Where a specific film thickness is required, a multi-layer coating method can be used. Each layer should be controlled very precisely to achieve the final desired film thickness.
  5. Thickness Measurement and Feedback Control: Thickness measurement instruments can be used to monitor the thickness of the coating in real time, and based on the results, adjustments can be made to the spraying parameters to keep the film thickness within the required range.
Powder Coating Equipment Manufacturer- (16)

Conclusion

Powder coating is a highly efficient and widely used surface coating technique based on the principles of electrostatic adsorption and melt curing.

To ensure the quality of coating, film thickness control is essential. By controlling the spraying distance, speed, powder coating properties and the use of film thickness measurement and feedback controls, accurate control of the coating film thickness can be achieved to meet the needs of different applications. Correct film thickness control ensures the quality, performance and durability of the coating.









    Close
    Share this page
    Share with PinterestShare with LinkedInShare with FacebookShare with Twitter

    Post navigation

    PreviousPrevious post:The 3 stages of powder adsorption workpiece in powder electrostatic coatingNextNext post:Paint coating line vs. powder coating line: a comparison of advantages and disadvantages

    From the Same Category

    Power And Free Conveyor 1
    Powder Coating Equipment: What Does Power and Free Conveyor Do?
    2025年5月14日
    How to Avoid Color Difference in Powder Coating Line
    2025年5月8日
    Chamber curing oven in the powder coating production line (2)
    How to Inspect Your Powder Coating Curing Oven Environment
    2025年4月10日
    Why Your Automatic Powder Coating Line Isn’t Delivering Enough Powder
    2025年4月3日
    The Secret About Coating Failure In Powder Coating Line
    2025年3月13日
    Powder Coating Robot
    Powder Coatings Redefined: Achieve Flawless Finishes with 0 Overspray Loss
    2025年3月6日
    Products Category
    • Powder Coating Line
      • Manual Powder Coating Line
      • Automatic Powder Coating Line
      • Power And Free Powder Coating Line
    • Powder Coating Painting Robot
      • Drag Teaching Programming Robot
      • Visual Automatic Programming Robot
    • Pretreatment System
      • Online Spray Pretreatment
      • Dip Tank Pretreatment
    • Powder Coating Booth
      • Fast Color Change Booth
      • Filter Recovery Powder Coating Booth
    • Powder Coating Oven
      • Camel Back Powder Coating Oven
      • Tunnel Powder Coating Oven
      • Batch Powder Curing Oven
    • Conveyor System
      • Automatic Conveyor
      • Power And Free Conveyor
      • Manual Conveyor System
    • Electrical Control System
    • Manual Powder Coating Machine
      • Powder Coating Machine Parts
      • Powder Coating Gun
    • Powder Dip Coating Line
    • Liquid Painting Line
    • Powder Coating Powder
    Hebei Hanna Technology Co.,Ltd
    • Telephone
      +86-311-85290395
    • WhatsApp
      +86 18632138668
    • Email
      sales@powderspraymachine.com

    Find us on:

    Mail
    Recent Articles
    • How to design line speed according to production capacity ?
      2021年5月24日
    • Choosing The Right Powder Coating System
      2021年5月18日
    • Power And Free Conveyor 1
      Powder Coating Equipment: What Does Power and Free Conveyor Do?
      2025年5月14日
    • How to Avoid Color Difference in Powder Coating Line
      2025年5月8日
    • Chamber curing oven in the powder coating production line (2)
      How to Inspect Your Powder Coating Curing Oven Environment
      2025年4月10日
    • Why Your Automatic Powder Coating Line Isn’t Delivering Enough Powder
      2025年4月3日
    • The Secret About Coating Failure In Powder Coating Line
      2025年3月13日
    • Powder Coating Robot
      Powder Coatings Redefined: Achieve Flawless Finishes with 0 Overspray Loss
      2025年3月6日
    Main Products

    Powder Coating Line

    Paint Spraying Equipment

    Pretreatment System

    Powder Spraying Room

    Conveyor Chain

    Curing Heating System

    Contact Us
    • Phone:
      +86-311-85290395
    • Mobile / WhatsApp
      008618632138668
    • Email
      sales@powderspraymachine.com

    Find us on:

    FacebookTwitterGoogle+YouTubePinterestFoursquare





      © Hebei Hanna Technology Co.,Ltd. 2018. All rights reserved.