AN INVESTIGATION ON THE TEMPERATURE BEHAVIOR IN MOLD EMBEDDED WITH HEATER

摘要

Conventionally, a mold is to be cooled by cooling channels in an injection molding process. However, the demand for the high quality plastics has popularized the varied-thermo control of mold system. An electrical heater system is one of the popular heating methods used in varied-thermo type methods for its low cost and ease of use. To achieve good efficiency, the system layout and the switchover between heating and cooling have to be properly designed and optimized. In this study, a true 3D fully transient approach is proposed to simulate the temperature behavior of mold embedded with heater. Furthermore an experimental apparatus is also set up to measure and verify this transient behavior.