Study on Reduction of Energy Consumption for Mold-Temperature Control Using an Adsorption Heat Storage Material Inclusion Mold

2015 Fiscal Year Final Research Report

• Project/Area Number: 25289038
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: SATOH ISAO 東京工業大学, 理工学研究科, 教授 (10170721)
• Co-Investigator(Kenkyū-buntansha): SAITO TAKUSHI 東京工業大学, 大学院理工学研究科, 准教授 (20302937) ; KAWAGUCHI TATSUYA 東京工業大学, 大学院理工学研究科, 助教 (40376942)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: エネルギー工学 / プラスチック射出成形 / 金型温度制御 / 吸着蓄熱 / 消費エネルギー削減 / 生産性

Outline of Final Research Achievements

In order to reduce energy consumption necessary for dynamic temperature control of molds of plastic injection molding, we proposed a novel concept to change the mold temperature by adsorption/desorption of water vapor to/from a adsorption heat storage material included in the mold, and the feasibility was examined from the viewpoints of energy reduction and influence on the productivity. As the results, it was shown that the mold temperature can be definitely risen by the heat generation due to adsorption of water vapor to the heat storage material, and that quality of the molded is improved and thus the energy consumption is reduced to that extent. On the other hand, this study also revealed that effective mold heating requires some devices that guide the heat generated in the heat storage material to the cavity surface, and that regeneration of the heat storage material after heat generation takes relatively long time and thus deterioration of productivity is not negligible.

Free Research Field

工学