×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Brush dispersion

Brush dispersion

(OP)
I have a project that I need some help finding a way to calculate and I don't know who to ask.

Mineral oil is dripped onto a surface and a rotating brush, (similar to how a street cleaner works with a horizontal rotating brush), smooths or pushes the oil across the surface. Is there a way to calculate the dispersion of the drop of oil providing you know the volume/size of the oil drop, brush geometry, speed, direction of rotation and crush (pressure) of the brush?

Can anyone can point me in the right direction to solve this problem?

RE: Brush dispersion

The drops simply replenish the oil in the brush. After a short while the brush becomes saturated with oil, and it is this fact that assures uniform dispersion of oil across the surface. It is just like painting a wall with a paint brush. There will be variation in the coating thickness but goal is to not have dry spots and not to have drips. Oil will continue to spread long after the brushing process. The average thickness can be controlled very accurately by the drip rate.

RE: Brush dispersion

The semiconductor industry has used spinning for photoresist dispersion for decades; when the viscosity and other fluid properties are correctly matched to the spin sped of the substrate, better than 1% uniformity can be achieved.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!