Application of carbon coating of the mold insert in micro injection molding

• Main Authors: Yueh-Lin Tsai, 蔡岳霖
• Other Authors: Wen-Bin Young
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/61261387746935236427

碩士 === 國立成功大學 === 航空太空工程學系專班 === 95 === Due to the improvement of injection molding technology, a lot of products become smaller and more delicate.The micro-injection molding gradually plays a major role in the mass production. This study utilized the surface rapid heating system to understand the heating effect on the micro-injection molding. A graphite thin film (0.1μm thickness) was coated onto the surface of insert the mold by ion sputtering to enhance the heat absorption during the infrared heating.Space the result shows that the injection process was enhanced by the graphite coating as well as the surface rapid heating system. In addition, the cavity temperature sensor indicates that the temperature of the mold is needed to be higher than the glass transition temperature to have a complete molding.