١٣-١٢-٢٠١٧ الأربعاء , ٠٩:٣٦ مساء

Sheet Extrusion

What is Sheet Extrusion?

Process_Diagram-Sheet_Extrusion
  • Sheet Extrusion is a technique for making flat plastics sheets from a variety of resins
  • Molten resin is continuously extruded in a flat form through a die, then nipped by polishing rolls for cooling and shaping to form a flat sheet
  • The flat sheet is pulled by a haul-off system and is wound up to for a sheet roll

HIPF Course Description

Course Objective

At the end of this course, the trainees will have acquired basic knowledge and skills important to the operations of a Multilayer Sheet Extrusion Plant

Course Outline

  1. Introduction to Safety
      General Instructions; Protective Devices; Emergency Stops; Pictograms for Safety and Information; Dangerous Spots in Sheet Extrusion Line
  2. Introduction to Sheet Extrusion
      Definition of Sheet; Presentation of Sheet Rolls and Products from Sheets; Sheet Extrusion Principle and Techniques; Sheet Extrusion Process and Functions
  3. Introduction to Multilayer Co-extrusion
      Definition of Multilayer Co-extrusion; Methods for Multilayer Co-extrusion
  4. Introduction to Commodity Plastics
      Definition of Terms; Kinds of Commodity Plastics; History of Commodity Plastics; Polymerization Process; Sample Technical Data; Parameters and Application
  5. Machine Startup & Shutdown Procedure
      Proper Startup and Shutdown Procedures; Familiarization with the Control Buttons; Safety Measures
  6. Line Operations and Product Quality Check
      Parameter Adjustment; Quality Check – Online and Product Thickness, Appearance of Sheet, Product Width and Layer Thickness Using Polarizing Microscope
  7. Practice Operations
  • Machine Startup and Shutdown Operations
  • Parameter Adjustments
  • Quality Check – Online Sheet and Product Sheet
  • Run 0.65 mm Polystyrene Multilayer Sheet
  • Run 1.00 mm Polypropylene Multilayer Sheet
  • Definition of Sheet; Presentation of Sheet Rolls and Products from Sheets; Sheet Extrusion Principle and Techniques; Sheet Extrusion Process and Functions
  1. Introduction to Multilayer Co-extrusion
      Definition of Multilayer Co-extrusion; Methods for Multilayer Co-extrusion
  2. Introduction to Commodity Plastics
      Definition of Terms; Kinds of Commodity Plastics; History of Commodity Plastics; Polymerization Process; Sample Technical Data; Parameters and Application
  3. Machine Startup & Shutdown Procedure
      Proper Startup and Shutdown Procedures; Familiarization with the Control Buttons; Safety Measures
  4. Line Operations and Product Quality Check
      Parameter Adjustment; Quality Check – Online and Product Thickness, Appearance of Sheet, Product Width and Layer Thickness Using Polarizing Microscope
  5. Practice Operations
    • Machine Startup and Shutdown Operations
    • Parameter Adjustments
    • Quality Check – Online Sheet and Product Sheet
    • Run 0.65 mm Polystyrene Multilayer Sheet
    • Run 1.00 mm Polypropylene Multilayer Sheet