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Fail-safe material feed for coextrusion.


A new concept is said to simplify feeding large numbers of extruders with many different materials in highly layered cast and blown film lines. The system is said to make it almost impossible to send the wrong material to the wrong destination. Instead of banks of individual feed pipes connecting each material silo directly to seven or nine extruders, CRG CRG Centre for Research on Globalisation
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 Logics Inc., Green Bay, Wis., connects each silo to a wall-mounted Smart Connect Stand for each extruder. The Smart Stand sequences the vacuum pumps Vacuum pump

A device that reduces the pressure of a gas (usually air) in a container. When gas in a closed container is lowered from atmospheric pressure, the operation constitutes an increase in vacuum in this container.
 and valves to feed the correct materials for a particular recipe to the extruder, reducing the amount of piping and vacuum usage. Programming is flexible and can be set up to override An arrangement whereby commissions are made by sales managers based upon the sales made by their subordinate sales representatives. A term found in an agreement between a real estate agent and a property owner whereby the agent keeps the right to receive a commission for the sale of  an operator error that contradicts the stored recipe--or simply give the operator an error message.

Other benefits include fast material changes because dedicated lines to silos don't need cleanout, plus energy savings from use of a variable-speed drive on the vacuum pump, which can run faster or slower according to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 the line diameter for each silo and Gaylord run.

CRG Logics introduced Smart Connect at NPE NPE NullPointerException (Java)
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 2006 in Chicago and has two installations--one for a nine-extruder, 17-layer cast film line and one for seven-layer blown film. Tel: (920) 884-7400 * www.crglogics.com

[ILLUSTRATION OMITTED]
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Copyright 2007, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:KEEPING UP WITH: Extrusion
Publication:Plastics Technology
Date:Mar 1, 2007
Words:210
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