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Troubleshooting Blown Film Extrusion Operations Seminar

May 17-18, 2012

Doubletree Hotel Chicago - Wood Dale                                                                    

1200 N. Mittel Blvd.
Wood Dale, IL 60191

1-630-860-2900

by Dr. Chris Rauwendaal and Paul Waller

For Questions Contact: Sietske Rauwendaal 530-269-1082 or sietske@rauwendaal.com

 

Scroll down for Outline

Printable Outline and faxable registration form

About the Seminar

This seminar presents an in-depth discussion of Troubleshooting the Blown Film Process.
The objectives of this seminar are for students:

  • to understand blown film extrusion and operation

  • to understand how plastic properties affect extrusion and film properties   

  • to be able to efficiently troubleshoot and solve blown film extrusion problems

Two recognized experts will be the instructors for the seminar.

What the attendees will learn:

  • to learn the basic principles of blown film extrusion

  • to learn about plastics used in blown film extrusion and plastic properties important in extrusion and in film properties   

  • to learn about blown film downstream equipment

  • to learn the operational principles of extrusion

  • to learn how to troubleshoot general extrusion problems and specific blown film extrusion problems, such as bubble instabilities, poor optical properties, interfacial instabilities, etc.

Who should attend:

  • Extruder operators

  • Extrusion supervisors

  • Manufacturing engineers

  • Quality control personnel

  • Technical service personnel

Course Description
Continued...

Day 1, Chris Rauwendaal

 

1.  Introduction & extruder hardware

• Basic extruder components

• Review of terminology

• Screw and barrel

• Feed system

• Screw drive

• Heating and cooling

• Instrumentation and control

                 

2. Plastic properties

• What are plastics?

• Plastics used in extrusion

• Melt flow properties

• Thermal properties

• Viscous heat generation

• Plastic quality control

                 

3. Inside the extruder

• Feeding

• Solids conveying

• Plasticating

• Melt conveying and mixing

4. Extruder screws

• Standard extruder screw

• Variations on standard screw

• Mixing screws

• Barrier type extruder screws

5. Blown film dies

• Side fed dies

• Bottom fed dies

• Spiral mandrel dies

• Coextrusion dies

• Oscillating dies

6. Operational principles

• Startup procedures

• Purging and changeover

• Shut down procedures


 

 

Click on the image to find a description of the book.

This book normally $149.00 is available with seminar registration for $125.00

 





Day 2, Paul Waller

 

7. Downstream equipment

• Comparison air ring systems

• Optimizing air ring setup

• Internal bubble cooling systems

• Automatic gauge control

• Bubble stabilizer systems

• Effect collapsing systems on gauge

  variation and roll geometry

• Surface treatment and limitations

• Web tension control and optimization

• Heat sealing and bag manufacturing

 

8.  Troubleshooting

• Requirements for efficient troubleshooting

• Tools for troubleshooting

• Systematic troubleshooting

• Polymer degradation

• Extrusion instabilities

• Bubble instabilities

• Air entrapment and gel problems

• Die lines

• Poor optical properties

• Extrusion instabilities

• Wear problems

• Interfacial instabilities

 

9. Workshops

• Eliminate melt fracture

• Eliminate interfacial instability

• Eliminate gels

• Control bubble instability

• Diagnose surface adhesion problems

• Diagnose and eliminate wrinkles

• Optimize heat seal strength

• Diagnose and minimize gauge variation

• Extruder temperature profiles

• Diagnose and eliminate extruder surging

• How to adjust for screw and barrel wear

Books authored by Chris Rauwendaal:

The following books are discounted when you register for a seminar.  If you want to order check appropriate box on registration form.

  • Polymer Extrusion
  • Understanding Extrusion
  • Troubleshooting the Extrusion Process
  • SPC in Injection Molding and Extrusion
  • Polymer Mixing
  • Mixing in Polymer Processing


            

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 
   
   

 

 
Copyright 2007 Rauwendaal Extrusion Engineering, Inc. 10556 Combie Rd P.M.B. 6677 Auburn, CA 95602-8908. 530.269.1082, fax 530.269.1084.
Information Request Form. / Technical Questions: chris@rauwendaal.com. / General Questions: sietske@rauwendaal.com. Website by Eloquence.