Blown Film Coextrusion Die: 3-5 Layer Components

  • Thread starter Thread starter zaina
  • Start date Start date
  • Tags Tags
    Components Film
AI Thread Summary
Blown film coextrusion dies typically consist of multiple layers, with designs varying widely based on application needs. Key components include the die itself, which is responsible for shaping the film, and an air supply system crucial for the blowing process. Factories utilize large compressed air facilities that include compressors, dryers, and filters to ensure the air meets necessary quality standards. The quality of air supplied is essential for achieving optimal film characteristics. Understanding these components is vital for effective blown film production.
zaina
Messages
8
Reaction score
0
what are the components of blown film coextrusion die (three to five layers)
 
Engineering news on Phys.org
I'm not an expert by any means on the topic. However, from reading up on it, there appear to be many designs of dies used in the coextrusion process. I couldn't find a reference to 3 common components. I did find the attached in D.V. Rosato's "Extruding Plastics-A Practical Processing Handbook".
 
Last edited:
air supply to coextrusion die

thanks a lot FredGarvin

what are means of supplying air to these dies for blowing films
 
What exactly do you mean by "what means?" Factories will have large compressed air facilities. The facilities will comprise of compressors, dryers and filtering that will provide the air required in terms of flow and quality, i.e. oil/water content.
 

Thread 'Query on Isentropic relationships (such as PV^gamma = constant)'

Hi all, I have a question. So from the derivation of the Isentropic process relationship PV^gamma = constant, there is a step dW = PdV, which can only be said for quasi-equilibrium (or reversible) processes. As such I believe PV^gamma = constant (and the family of equations) should not be applicable to just adiabatic processes? Ie, it should be applicable only for adiabatic + reversible = isentropic processes? However, I've seen couple of online notes/books, and...
View full post »
Thread 'How can I find the cleanout for my building drain?'

Thread 'How can I find the cleanout for my building drain?'

I am a long distance truck driver, but I recently completed a plumbing program with Stratford Career Institute. In the chapter of my textbook Repairing DWV Systems, the author says that if there is a clog in the building drain, one can clear out the clog by using a snake augur or maybe some other type of tool into the cleanout for the building drain. The author said that the cleanout for the building drain is usually near the stack. I live in a duplex townhouse. Just out of curiosity, I...
View full post »

Similar threads

Where to Buy a 9m Wide Three Layer Blown Film Coextrusion Line?
Replies
1
Views
2K
Engineering Current density calculation in anisotropic ferromagnetic film
Replies
7
Views
2K
Thin film constructive interference
Replies
3
Views
4K
Thin-film interference: transmission & reflection of colors
Replies
6
Views
4K
B Reducing resonance in a rotating "World"
Replies
8
Views
748
Exokat [catsuit exoskeleton] and Simbot 8.4 invention idea?
Replies
16
Views
5K
BST - what is the weird layer at the bottom?
Replies
1
Views
2K
Discover the Piezoelectric Equations for Ceramic Multi-Layer Components
Replies
13
Views
3K
Will detecting 1 of the 3 slits break the wave patterns?
Replies
13
Views
2K
PDLC film or glass for optical shutters or shutter glasses
Replies
20
Views
5K

Hot Threads

Recent Insights

Back
Top