Posts: 1
From:Patalganga, Maharashtra, India
Registered: Sep 2005

posted September 02, 2005 02:54 AM               

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I am scientist working on Polyester development
While compounding on Lab Scale TSE we tend to lose a lot of PET Intrinsic Viscosity, requesting an advice on screw design for reducing the shear degradation

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Posts: 678
From:Brodheadsville, PA USA
Registered: Jun 2001

posted September 02, 2005 01:34 PM               

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This software is available for sale and has been used in shear stress analysis.

Please send an email to me if you are interested.

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Best Regards,

Tom Cunningham

Extrusion Technical Services

www.ExtrusionTechnicalServices.com

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Posts: 1
From:Kuala Lumpur
Registered: Jan 2006

posted January 12, 2006 04:40 AM               

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[QUOTE]Originally posted by Tom C:
Dear Tom :-

Kindly please e-mail to me the detail assemblies part for Extruder screw together with the part code and part name.

Your assistant and attention are extremely appreciated.

Regard and thank you.

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Posts: 678
From:Brodheadsville, PA USA
Registered: Jun 2001

posted January 14, 2006 10:46 AM               

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Yeah, sure, no problem. I have no idea what equipment you have, or what you are processing. Even if I did, do you think I'm going to just give up my time and knowledge to engineer this for you?

I find your request disrespectful and absurd.

Tom C

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Posts: 1
From:Istanbul TURKEY
Registered: Jan 2006

posted January 20, 2006 04:45 AM               

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Is there a simulation program which works on counter rotating twin screw extruders??

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Posts: 678
From:Brodheadsville, PA USA
Registered: Jun 2001

posted January 20, 2006 09:01 AM               

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Not that I am aware of, and I have looked for a long time.

Some researchers have done modeling of counter rotating and may be able to provide you with something.

Tom C

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Posts: 103
From:Silver City, NM, USA
Registered: Jun 2001

posted January 20, 2006 08:57 PM               

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Try contacting Cincinnati Milacron in Batavia Ohio----they produce both conical and parallel counter-rotating twin screw extruders---and may well have developed some computer models for counter-rotating twin screws. Other than that, I can "talk my way" down to what happens in a screw/barrel when a rigid PVC comound --i.e.pipe--traverses the extruder.

[This message has been edited by 2beeps (edited January 20, 2006).]

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