近年來，最普遍看到以及使用的東西即為塑膠製品，舉凡日常用品、3C產品、醫療用品等，都是塑膠成型的典型範疇並且廣泛地被使用在日常生活中。射出成型除符合品質與精密度的要求，更有低成本、高產能的特性，因此成為塑膠加工的重要技術。不過近期研究有關感應加熱應用於模具加熱上大多屬平面加熱，也就是加熱線圈彼此之間不會有高低差。但是實際上射出成型的產品並非都屬平面式的，大多數的產品都會有曲面或是深度不一樣的情況。對於這些產品，如果只是使用平面的加熱線圈並沒有辦法達到很好的加熱效果。
本研究的目標主要是希望透過將感應線圈改成非平面式，配合模穴的深淺進行設計，以達到高加熱效率以及高溫度均勻性。本次實驗共製作了兩組加熱線圈。第一組的加熱效果10秒由起始50oC上升至74.27 oC，升溫速率為每秒2.43oC，溫度均勻性為77.66%；第二組的加熱效果10秒由起始50oC上升至81.14oC升溫速率為每秒3.11oC，溫度均勻性為80.92%。

Plastic products were the most common things we used in recent years, like daily necessities, 3C products and medical supplies, all of above things were injection molding products and wildly used in everyday. Injection molding in addition to satisfying the requirements of quality and precision density, it had more low-cost and high-volume characteristics, so it became an important technology of plastics processing. However, recent studies on induction heating applied to the mold mostly flat, in other word, heating coils would not have the level difference to each other. Actually injection molding products were non-planar, most of products had curve or difference depth. For these cases, if only use planar heating coil, it could not achieve good heating effect.
This study was mainly designed non-planar heating coil, according to the depth of mold cavity designed heating coil in order to get high heating efficiency and high temperature uniformity. This study designed two heating coils. The first one total heating 10 seconds and temperature increased from 50oC to 74.27oC. Heating rate was 2.43oC/s and temperature uniformity was 77.66%. The second one total heating 10 seconds and temperature increased from 50oC to 81.14oC. heating rate was 3.11oC/s and temperature uniformity was 80.92%.

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