|
|
|
|
|
12/12/2008
 Email to a friend
|
| |
Sprays for coatings can be controlled over much wider speed ranges by adopting pulse width modulation
 .
Sprays for coatings, whether for the food industry or industrial products, can be controlled over much wider speed ranges by adopting pulse width modulation.
This requires quick ‘on’ and ‘off’ turns - and the latter can be greatly accelerated by a sharp, negative pulse. This ensures more efficient application of coatings, at constant drop size, and also offers a way of switching solenoid operated valves more quickly for other applications
Just turning down the flow rate to a spray nozzle results in a larger drop size and different spray pattern. Raoul De Winne of Spraying Systems has been describing how his company considered using needle vales in nozzles, and even variable geometry nozzles, but then decided their new solution was far better.
|
|
| |
Author
Tom Shelley
|
| |
| |
This material is protected by Findlay Media copyright 2010.
See Terms and Conditions.
One-off usage is permitted but bulk copying is not.
For multiple copies contact the sales team.
|
| |
|
|
| |
To comment on news stories or blogs you need to complete our 60 second registration process. Once completed this then allows you to download any and all white papers, register for e-zines and access our detailed supplier directory for FREE.
If you are all ready a registered user then enter your e-mail address and login.
You will need to have logged in prior to entering your comments in the boxes provided.
|