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Article: Water-assisted injection molding of thermoplastic materials: effects of processing parameters.
- Article from:
- Polymer Engineering and Science
- Article date:
- November 1, 2003
- Author:
CopyrightCOPYRIGHT 2003 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
A newly developed water-assisted injection molding technology (1) has received extensive attention in recent years, owing to its light weight, relatively lower resin cost per part, faster cycle time, and its flexibility in the design and manufacture of plastic parts. Water-assisted injection molding can produce parts incorporating both thick and thin sections with less shrinkage and warpage and a better surface finish, but with a shorter cycle time. Typical applications include: 1.) tube and rod-like parts, 2.) large sheet-like structural parts with a built-in water channel network, and 3.) complex parts consisting of both thick and thin sections. ...