NDLI: Three critical measurements on injection molding processes

Content Provider	IEEE Xplore Digital Library
Author	Dininger, J.
Copyright Year	1994
Description	Author affiliation: Eng. Technol., Lorain County Community Coll., Elyria, OH, USA (Dininger, J.)
Abstract	The key to implementing control of the injection molding process is to utilize a strategy through which we understand the molding process from a plastics point of view. It is extremely important to understand the plastic as it flows through the barrel of the machine and into the mold, as well as understanding how the various variables of the process acting on the plastic material determine the characteristics of the finished plastic part. To achieve the maximum degree of process control and have positive effects on the finished plastic product being molded, it is important to measure and control the plastics variables. The author discusses three plastics variables: plastics melt (stock) temperature, plastics cooling rate, and another related plastics variable: plastics moisture content. One major problem exists in measuring and controlling these plastics variables however, injection molding machines do not have controls marked "plastics temperature" "cooling rate", and "plastics moisture content". The molding machines and auxiliary equipment only have controls that indirectly influence these plastics variables. Because of the interrelationship of these plastics variables, the basic injection molding process is extremely capricious, any attempt to control these plastics variables must seek to isolate them from each other as much as possible. Then, changing one control will not cause multiple effects in key parameters.<>
Starting Page	2159
Ending Page	2164
File Size	659828
Page Count	6
File Format	PDF
ISBN	0780319931
DOI	10.1109/IAS.1994.377729
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-10-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Moisture control Cooling Thermal variables control Injection molding Fasteners Electric variables control Temperature control Plastic products Conducting materials
Content Type	Text
Resource Type	Article

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