Intermittent Coating Control System Reducing Coating Variation in Intermittent Coating for Higher Production Repeatability

Customer Challenges Coating-Profile and Dimensional Variation in Intermittent Coating

Customer Challenges

Intermittent coating alternates between coated and uncoated sections to intentionally create areas without coating.
It contributes to mass production of rechargeable-battery materials that require this method, but it also presents the following challenges.

  • sentiment_sad The coating edge rises at the end of coating, disturbing the coating profile
  • sentiment_sad Variation in valve opening and closing causes dimensional variation in coating length and thickness
  • sentiment_sad Combined mechanical and electrical variation makes production conditions difficult to reproduce
  • sentiment_sad Condition setting takes time, increasing setup work and waste material

Solutions Achieve an Ideal Coating Edge and High Repeatability

Solutions

The Intermittent Coating Control System uses a dedicated control package to control coating start and end with high precision and repeatability.

1.Improve Repeatability of Intermittent-Coating Conditions and Minimize Dimensional Variation

  • sentiment_very_satisfied High-response valve drive using a linear motor (VCM) controls coating start and end quickly and accurately
  • sentiment_very_satisfied Valve-drive patterns are registered in the system
  • sentiment_very_satisfied Separate rise and fall patterns can be controlled
  • sentiment_very_satisfied Driving valve opening and closing according to defined patterns reproduces the same coating conditions every time

2.Streamline Condition Setting and Setup Work

  • sentiment_very_satisfied Monitor valve position and thrust, pressure inside the die, and other values
  • sentiment_very_satisfied Adjust conditions while checking measured values

3.Flexible Introduction into New and Existing Equipment

  • sentiment_very_satisfied Provided as a package including the controller, driver, and linear motor
  • sentiment_very_satisfied Easy to introduce not only into new equipment but also as a retrofit to existing coaters

The Intermittent Coating Control System helps improve intermittent-coating production into a high-quality, stable mass-production process.