Design and Development of PVT Pressing Die

• Main Authors: Ruo- Ciang-Syu, 徐若強
• Other Authors: Shyang-Jye Chang
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/ptjtzc

碩士 === 國立雲林科技大學 === 機械工程系 === 105 === The PVT test, which is focus on three parameter, each were P (Pressure)、V (Volume)、T (Temperature), and testing these three parameter will be able to know the expansion and shrinkage of polymer in high temperature and high pressure, than draw the chat of PVT relation. The purpose of this study is design and simulation analysis of PVT test in different situations. Through the capability of the machine industry and academia commonly used, we are more focus on the present machine can’t satisfy the conditions (above 300℃ tests) and advantage (high cooling rates of sample), that to development the novelty of PVT machine, in understanding the machine after the necessary conditions, planning the hardware configuration and calculate the specifications of parts and equipment require, and through the simulation to analysis, which will lead to different results, because setting the different initial conditions, also investigate and improve design after simulation result, according to the simulation result can be obtained the pressing die thermal expansion and cooling rate of high-temperature type and high cooling rate type, high-temperature die can be heating up to 7.2℃/s、1.3℃/s, high cooling rates die cooling rates to 22℃/s、20℃/s at the first 10 seconds. Keywords: PVT test, plastic high cooling rate, mold flow analysis