A temperature-dependent adaptive controller. Part I: controller methodology and open-loop testing.: An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on October 1, 2004. The length of the article is 7331 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

From the author: Currently, the controllers for achieving a desired injection velocity setpoint profile are independent of processing conditions in plastic injection molding. The dynamics of the reciprocating screw during injection mold filling is complex and temperature-dependent. This complexity is based on process parameters that are nonlinear, which can vary spatially in time. Open-loop tests were performed on two polymers at three melt temperatures and three mold-fill velocity regimes: low, medium, and high. These tests were based on close-loop injection mold-fill setpoints and a derived voltage velocity relationship for the injection velocity hydraulic valve. The results of the open-loop tests show that mold-filling injection velocity is polymer- and melt temperature-dependent. Polym. Eng. Sci. 44:1925-1933, 2004. [c] 2004 Society of Plastics Engineers.

Citation Details
Title: A temperature-dependent adaptive controller. Part I: controller methodology and open-loop testing.
Author: Rickey Dubay
Publication:Polymer Engineering and Science (Refereed)
Date: October 1, 2004
Publisher: Society of Plastics Engineers, Inc.
Volume: 44 Issue: 10 Page: 1925(9)

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