CONTROL OF EXTRUSION MOLDING

摘要

PURPOSE:To set a molding condition capable of always obtaining constant quality at all molding speeds in a non-steady state. CONSTITUTION:Die set temp. in a molding condition is calculated from the preliminarily experimentally calculated relation between a molding material, a molding condition and the characteristics of a molded product to be set and the number of rotations of a screw 5 using the relation between the molding material, the molding condition and an extrusion flow rate or the taking-up speed in the molding condition preliminarily experimentarily calculated on the basis of die temp. actually measured independently of the set temp. is calculated to be set to obtain the desired extrusion flow rate in an extrusion molding line or the taking-up speed in the molding condition.