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Extrusion Pipe

Pipe Extrusion is a key manufacturing process designed for creating continuous lengths of piping, widely utilised for various applications due to its efficiency and versatility.

Overview of Pipe Extrusion:


  • Process Basics: Utilises thermoplastic granules that are heated, melted, and homogenized within a barrel by an Archimedean screw through both shear and heat.

  • Continuous Production: Capable of producing pipes of virtually unlimited length, making it ideal for extensive piping needs.

  • Custom Lengths: Pipes are extruded continuously and then cut to desired lengths post-cooling.



Examples of Pipe Applications:


  • General Use: Hosepipes for general watering or washing.

  • Industrial Applications: Mains water pipes for infrastructure.

  • Specialized Use: Pneumatic hoses for air tools and systems.



Mechanics of the Extruder:


  • Motor and Drive: An electric motor and hydraulic drive rotate the screw, pushing the plastic granules through the heated barrel.

  • Die Shaping: A die at the barrel's end shapes the molten plastic into the pipe's profile.

  • Cooling Process: After shaping, the pipe passes through a water bath with sizing formers, where it solidifies.


Quality Control Measures:


  • Speed Regulation: Take Off Rollers ensure the extrusion process is at the correct speed to maintain size and strength.

  • Vacuum Calibration: For hollow, high-tolerance pipes, vacuum calibration devices within the cooling bath ensure dimensional precision.



Post-Extrusion Handling:


  • Cutting and Coiling: Pipes are cut for transportation and application-specific uses, with longer pipes often coiled for convenience.



Advanced Techniques:


  • Co-Extrusion: This method integrates different materials or colors into a single pipe profile using twin head extruders for layered pipe structures.



Materials and Final Products:


  • Typical Materials: Thermoplastic Elastomers (TPEs) and Polypropylene (PP) are commonly used in pipe extrusion.

  • Product Range: Includes essential items like hosepipes, mains water pipes, and pneumatic hoses.


Pipe extrusion continues to be essential in the production of various types of pipes, underpinning a range of sectors from residential to industrial applications.

Technologies - Extrusion-  Pipes

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