PLASTICIZING PACKAGE ENHANCES THROUGHPUT AND PART QUALITY IN INJECTION MOLDING OF COMPOSITES WITH HIGH GLASS FIBER LOADINGS

Xaloy® System from Nordson Includes Wear-Resistant Screw, Barrel, and Valve Designed for High Output and Low-Shear Mixing, with Minimal Fiber Breakage

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NECKARSULM, GERMANY, September 15, 2017: A new plasticizing system for compounds with high levels of glass fiber reinforcement provides wear-resistance, high throughput, and gentle mixing, enabling injection molders to meet the requirements of metal-replacement and other high-strength applications while enhancing productivity and part quality.

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To be introduced by Nordson Corporation at Fakuma 2017 (Stand A6-6109), the Xaloy® High Glass Filled Polymer System is designed for injection molding a wide range of resins with filler content from 10 to 60%. Applications include automotive, marine, electronic, and other parts that require very high levels of strength and stiffness.

Components in the Xaloy® package system include:

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  • Xaloy® Pulsar™ I Mixing Screw, whose wave-style root geometry enhances distributive and dispersive mixing, providing continually varying, localized high- and low-pressure areas that yield complete melt homogenization with low shear. The resulting gentle mixing minimizes fiber breakage and thus maximizes part strength.
  • Xaloy® X-8000™ Screw Encapsulation, a nickel-based alloy with high tungsten carbide content that provides twice the abrasive and corrosion wear life than standard high-velocity oxy-fuel (HVOF)-applied coatings. Nordson uses HVOF technology to apply the coating to the entire screw geometry, then fuses the alloy to the parent metal of the screw, forming a metallurgical bond. In addition, the Xaloy® X-8000 encapsulation is double the thickness of standard HVOF-applied coatings.
  • Xaloy® X-800® Barrel Inlay, a liner combining a nickel-based alloy with tungsten carbide that provides a high degree of abrasion and corrosion resistance and functions compatibly with the Xaloy® X-8000™ screw encapsulation.
  • Application-Specific Valve, designed to accommodate the viscosity and flow properties of highly filled compounds.

“Wear-resistance is only one of the requirements for successfully processing the highly filled compounds called for in metal-replacement and other high-performance applications,” said Mark Colella, global product manager for Nordson’s Xaloy brand. “Our new Xaloy® plasticizing system enables molders to overcome the challenges to productivity and part quality posed by today’s increasingly higher loadings of glass fiber reinforcement.”

www.nordson.com