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Recirculating mixhead.


The company has developed a larger recirculating mixhead for spraying polyurethane polyurethane

Any of a class of very versatile polymers that are made into flexible and rigid foams, fibres, elastomers (elastic polymers), surface coatings, and adhesives.
 in RIM (reaction injection molding Reaction injection molding OR RIM Molding is similar to injection molding except that a reaction occurs within the mold. The process uses thermoset polymers (commonly polyurethane) instead of thermoplastic polymers used in standard injection molding. ) applications. The 13 mm RIMSpray mixhead joins the company's smaller 6 mm MiniRim spray mixhead. They are said to be the only recirculating spray mixheads designed specifically for open-pour reaction injection molding. The RIMSpray mixhead applies a very wide coverage path instead of the narrow pour stream common to a standard open-pour mixhead. The RIMSpray head offers a 48" coverage path, as opposed to a 1" path for the standard mixhead. This fan-like dispersal dis·per·sal  
n.
The act or process of dispersing or the condition of being dispersed; distribution.

Noun 1. dispersal
 of polyurethane is said to greatly reduce the number of times the head must pass over the mold mold, name for certain multicellular organisms of the various classes of the kingdom Fungi, characteristically having bodies composed of a cottony mycelium. The colors of molds are caused by the spores, which are borne on the mycelium.  to complete the pour. It is also said to produce a much more even application of polyurethane to the mold surfaces, with precise control of over-spray. The size of the fan spray can be adjusted by changing the nozzle An orifice in an inkjet print head through which ink is sprayed onto the paper. Print heads with six thousand or more nozzles are common in today's printers.
Nozzle 
 tip or by adjusting the height of the mixhead off the face of the mold. (Gusmer-Admiral)

Circle 100 on card
COPYRIGHT 2001 Lippincott & Peto, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2001, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Rubber World
Date:Mar 1, 2001
Words:167
Previous Article:Paper calls.
Next Article:Injection molding machine.



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