| 摘要 |
PROBLEM TO BE SOLVED: To provide a viscosity calculating method for a molten resin capable of obtaining the viscosity of a molten resin according to change in set temperature of the resin used for molding. SOLUTION: A numerical value X2 is calculated by subtracting a numerical value X1 obtained by adding a constant a to the glass transition temperature Tg of a resin from the standard molding temperature Ta of the resin. A numerical value X3 is calculated by dividing the value X2 by a constant b. A numerical value X4 is calculated by subtracting the numerical value X3 from a constanc c. The viscosity change rateΔη/°C accompanying change in temperature of the resin is calculated by dividing the numerical value X4 by the numerical value X2. A value Y2 is calculated by multiplying a numerical value Y1 obtained by subtracting the standard molding temperature Ta from the actual molding temperature Tc by the viscosity change rateΔη/°C. The viscosityηcorresponding to the actual molding temperature Tc is calculated by subtracting the value Y2 from the standard viscosityηd at the standard molding temperature Ta. COPYRIGHT: (C)2006,JPO&NCIPI
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