Title:
【発明の名称】押し出し工程の制御方法
Document Type and Number:
Japanese Patent JP2003511260
Kind Code:
A
Abstract:
An improved computer monitored continuous extrusion process for controlling the properties of an extruded material, wherein: 1) variable signals generated by an extruder drive and control system are transmitted to a data acquisition signal conditioning front end hardware, which isolates, amplifies and filters the variable signals and outputs variable analog signals; 2) the variable analog signals output by the data acquisition system signal conditioning front end hardware are converted to variable digital signals; and 3) the variable digital signals are transmitted to a control computer which calculates setpoints, which can be transmitted back to the extruder drive and control system or a feed control system used by the extrusion process, the improvement comprising selecting at least one variable signal having a coefficient of variability of greater than 0.05 and correlating said variable signal with variations in at least one property of the extruded material.
More Like This:
Inventors:
Pioboso, Michael Joseph
Sea, Paul Thomas
Sea, chi-kai
Wet Zell, Mark David
Sea, Paul Thomas
Sea, chi-kai
Wet Zell, Mark David
Application Number:
JP2001527970A
Publication Date:
March 25, 2003
Filing Date:
September 28, 2000
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
B29C48/92; G05D21/00; B29C48/03; (IPC1-7): B29C47/92; B29C47/08; G05D21/00
Attorney, Agent or Firm:
Heiyoshi Odashima