METHOD FOR CONTROLLING THE HEATING-UP OF AN EXTRUSION DEVICE FOR PRODUCING AN ELASTOMERIC SEMI-FINISHED PRODUCT

• Main Author: AMURRI CESARE EMANUELE
• Format: Patent
• Language: English; Korean
• Published: 31.10.2013
• Subjects: 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

In the manufacturing of a semi-finished product made of elastomeric material, a method for controlling the heating of an extrusion device which includes multiple structural units having respective different working temperatures and thermal inertias includes: a) setting, for all of the above-mentioned units a heating temperature to a value equal or close to the working temperature of the unit which has the lowest working temperature; b) simultaneously heating all of the above-mentioned units; c) when said unit is approaching or has reached the heating temperature, setting for the other units a new heating temperature to a value equal or close to that of the working temperature of the unit, the working temperature of which is closest to the heating temperature; and d) iteratively repeating the operations mentioned in b) and c), until all of the above-mentioned units have reached the respective working temperature.