1. Injection Molding
Figure 1-6 Resin temperature, residence time, and melting viscosity Figure 1-7 Resin temperature, residence time, and melting viscosity 1.6 Liquidity Liquidity of the molding material is important when deciding the molding condition at injection molding, and choosing thickness and gate position of the molded product when mold designing.
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CONTENTS 1. Injection Molding Machine - MEP
www.m-ep.co.jpAt the side where the capacity is small, plasticizing time and injection time become long, and it is used at the narrow capacity of the molding machine. That is, the filling shortage is caused due to the extension of molding cycle and slow filling rate.
4 Thermal Properties - m-ep.co.jp
www.m-ep.co.jp4・2 Thermal Conductivity and Specific Heat As shown in Fig. 4・2‐1, the specific heat of polycarbonate changes with temperature but it can be considered that this is 1.09～1.17J/(g.k) (0.26～0.28cal/g.℃)for the practical temperature range.This value does not differ very much from the common synthetic resins and corresponds to about 3 times of iron and
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