| Summary: | 碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 95 === In recently years, the mechanical areas have changed from traditional manufactures to CNC computer Aid control. Most of the low level work and traditional industries are moving from Taiwan to China. We seriously focus on upper our technologies in Taiwan now. The injection molding industry has shared its place in machine manufacture in Taiwan. Nowadays plastic injection is more popular than before. The plastic injection molding machine can be made by us in Taiwan. The technology of the injection molding is already come to maturity. In order to promote the competitiveness, the academia or manufacture industry spend a lot of time and money to promote the precise in injection molding.
There are many parameters in injection mold, so they need mold flow programs to analysis for plastic product. They can be used to save time and money in research. Mold flow analysis programs only can consider plastic product itself, only can design different gate line and cooling line, and product quality influence, as the reference of the mold design. But the mold flow programs can not consider actual work that will induce different pressure、speed、 temperature that will influence on products.
The main topic of this research is to discuss under the injection molding perform, when plastic material was pushed forward , the effect of the pressure within the barrel that was induced by the screw，and whether the effect of the frictional heating will cause the change of the barrel’s heat.
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