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Nordson Plasticising System Facilitates Moulding of Highly Filled Compounds

26 September 2017

Nordson Plasticising System Facilitates Moulding of Highly Filled Compounds

Nordson's new plasticising system for compounds with high levels of glass fibre reinforcement is said to provide wear resistance, high throughput and gentle mixing, enabling injection moulders to enhance productivity and part quality.

To be introduced at Fakuma 2017, the Xaloy High Glass Filled Polymer System is designed for injection moulding a wide range of resins with filler content of 10-60%. Applications include automotive, marine, electronic and other parts that require very high levels of strength and stiffness.

Components in the Xaloy package system include:

  • XaloyPulsar Mixing Screw, featuring a wave-style root geometry said to enhance distributive and dispersive mixing, providing continually varying, localised high- and low-pressure areas that yield complete melt homogenisation with low shear. The resulting gentle mixing is reported to minimise fibre breakage and thus maximise part strength.
  • XaloyX-8000 Screw Encapsulation, a nickel-based alloy with high tungsten carbide content that is said to provide twice the abrasive and corrosion wear life of 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.
  • XaloyX-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,” says Mark Colella, Global Product Manager for Nordson’s Xaloy brand. “Our new Xaloy plasticising system enables moulders to overcome the challenges to productivity and part quality posed by today’s increasingly higher loadings of glass fibre reinforcement.”


Photo provided by Nordson





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