Posts: 1
From:Germany
Registered: Mar 2004

posted March 04, 2004 11:03 PM            

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Hello,
do you know where I could find an efficient practical forrmula which could
provide extruder capacity as function of rotating speed, extruder diameter
and polymer type ?
I am not looking for a perfect result, only for a rough extimation of
extruder capacity (+/- 10%).

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Posts: 297
From:New Zealand
Registered: Jun 2001

posted March 05, 2004 03:04 AM               

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Screw design would have to come into it, back pressure generated by die/adaptors/screen pack etc

Dual spiral systems have a neat little program that you could try http://www.dualspiralsystems.com/

Steve

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Steve Hodgson

If at first you don't succeed, skydiving is not for you.

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Posts: 285
From:McHenry, IL USA
Registered: Nov 2002

posted March 05, 2004 07:50 AM               

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Steve H: I can only thank you immensly for the DUALSPIRAL lead to simulation software!

I've visited their facility, and can only state that it was the best, most organized, multicultural facility I ever visited. They are a great Company!

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Posts: 297
From:New Zealand
Registered: Jun 2001

posted March 05, 2004 02:43 PM               

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Hi Ken

I registered the extrusion simulation software, its quite a useful predictor and worth the $20.

Steve

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Steve Hodgson

If at first you don't succeed, skydiving is not for you.

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Posts: 59
From:Nottingham, Notts., U.K.
Registered: Jun 2001

posted March 05, 2004 04:00 PM            

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LC,

I agree that the Dualspiral sofware is useful for what you want. You could also have a look at our website Extruder Output.

I have compared the results from Dualspiral with ours and the agreement is quite good.

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Peter P.
pepeNOSPAM@polytech.co.uk
www.polytechconsultants.com

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