METHOD AND DEVICE FOR CALCULATING VISCOSITY OF RESIN FOR INJECTION MOLDING
PROBLEM TO BE SOLVED: To provide a method for precisely obtaining the viscosity of a resin used in the simulation of an injection molding process. SOLUTION: In addition to the viscosity at a high temperature, and in a high shear region which can be measured by a rheometer, the viscosity in a low she...
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Main Author | |
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Format | Patent |
Language | English |
Published |
15.01.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | PROBLEM TO BE SOLVED: To provide a method for precisely obtaining the viscosity of a resin used in the simulation of an injection molding process. SOLUTION: In addition to the viscosity at a high temperature, and in a high shear region which can be measured by a rheometer, the viscosity in a low shear rate region estimated from the frequency responsiveness of viscosity at a low temperature obtained by a dynamic viscoelasticity measurement device 2 is added. A part 3 in which viscosity values at temperatures and shear rates in a wide range are calculated, and they are subjected to a function approximation is included. The shearing viscosity values in a wide temperature range region and in a shear rate region are provided. COPYRIGHT: (C)2004,JPO |
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AbstractList | PROBLEM TO BE SOLVED: To provide a method for precisely obtaining the viscosity of a resin used in the simulation of an injection molding process. SOLUTION: In addition to the viscosity at a high temperature, and in a high shear region which can be measured by a rheometer, the viscosity in a low shear rate region estimated from the frequency responsiveness of viscosity at a low temperature obtained by a dynamic viscoelasticity measurement device 2 is added. A part 3 in which viscosity values at temperatures and shear rates in a wide range are calculated, and they are subjected to a function approximation is included. The shearing viscosity values in a wide temperature range region and in a shear rate region are provided. COPYRIGHT: (C)2004,JPO |
Author | YAMAGATA HIROAKI |
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Snippet | PROBLEM TO BE SOLVED: To provide a method for precisely obtaining the viscosity of a resin used in the simulation of an injection molding process. SOLUTION: In... |
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SubjectTerms | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
Title | METHOD AND DEVICE FOR CALCULATING VISCOSITY OF RESIN FOR INJECTION MOLDING |
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