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You are here: Home / Abrasion / C9000 Millennium Carbide Feed Screw – Extrusion, Abrasive Wear

C9000 Millennium Carbide Feed Screw – Extrusion, Abrasive Wear

December 11, 2018 by Marija G

The Problem:

A manufacturer of extrusion equipment approached Extreme Coatings for help to solve a high wear issue with one of its customers. This proprietary process coats paper with a thin, uniform film of highly filled (iron ferrite) polymer. This film is later magnetized to create a printable paper with a magnetic backing.

Line speed is critical to quality film deposition and this dictates when a screw and barrel system is out of tolerance. When an uneconomic rate results the feed screw is removed and rebuilt. A 2-1/2” extrusion screw with C83 hard facing and chrome plating lasts about 70 days in operation. Total production at this point is about 150,000 Kg of material processed.

The Solution:

Extreme Coatings applied their XC9000 Millennium carbide which is designed to combat fine particle abrasion. The screw is 2-1/2” (63 mm) with barrier flight and mixer. Coating thickness was .010” (0,125 mm) with a mirror 16/32 (0,4- 0,8 Ra) finish. This screw was installed in July of 2005.

The coated screw processed for a total of 210 days until output rate became uneconomical. Total wear in the barrier/compression section of the screw was 0.28” (0,7 mm) and the screw was stripped of remaining tungsten carbide to be rebuilt and recoated with XC9000.

Benefits:

The customer was very pleased with triple the wear life of their previous screw. Most importantly, total output for the coated screw was 675,000 Kg of material, a 25% increase over the previous feed screw. (See graph) By maintaining a close tolerance between the screw and barrel, this extrusion system operated more efficiently for a longer period of time resulting in higher total outputs.

Filed Under: Abrasion Tagged With: Extrusion

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MENU
  • Home
  • About Us
    • Shows and Events
    • News
  • Our Processes
    • High Velocity Thermal Spray
    • The Process
    • Encapsulation Protection
      • Full Encapsulation of Feedscrews
      • Partial Encapsulation of Feedscrews
    • Chrome Plating Replacement
      • Feedscrews, Mixing Rotors, etc.
      • Mud Rotors and Downhole Tools
  • Applications
    • Plastic & Rubber Industries
      • Feedscrews
      • Parallel Twin Feedscrews
      • Co-Rotating Twin Feedscrews
      • Ultrasonic Welding Horns
      • Cushion Master
      • Continuous Mixing Rotors
      • Mixer Bodies
      • Extrusion Dies, Die Plates, Sheet Dies
      • Granulator Knife Blades
    • Oil & Gas Industry
      • Downhole Mud Rotors
      • Mandrels
    • Marine Anti-Fouling
  • Technical Resources
    • Coating Formulas
      • Tungsten/Chromium Carbide
      • NiBoride
      • Other
    • Test Results
      • Abrasive Wear Test ASTM G65
      • Adhesive Wear Test ASTM G77
    • Case Studies
    • FAQs
    • Company Literature
    • ROI
    • Videos
  • How to Buy
    • Our Distributors
    • Purchase Encouragement Program (PEP)
    • Warranty
  • Contact Us
    • Application Profile Form