20 June 2011
20 June 2011
KraussMaffei Berstorff (KB) is supplying its counter-rotating, parallel twin-screw extruders with extra wear protection in machines intended for processing polyolefin and PVC based natural fibre composites (NFC).
KB has developed the coating to protect the extruders from excessive wear problems and shorter service life caused by NFC. “Wear protection optimised for the material being processed guarantees far longer service lives for the processing units; this minimises downtime and the associated maintenance costs and loss of productivity,” says Michael Finkenzeller, Product Manager of Renewable Raw Materials, KB Extrusion Technology Division.
KB explained that increased expansion forces occur during the processing of resin compounds and result in adhesion wear on the screw outer diameter and in the barrel bores. To reduce this adhesion wear, they adapted the screw geometry to optimise flight and inter-screw clearance. NFC also cause abrasion wear and so KB have given the screws a protective hard chrome plating.
With its new ‘Process Live’ format, processing and manufacturing processes will become a visible focus of this year's Composites Europe exhibition in Stuttgart, Germany, on 6-8 November. Mechanical and plant engineering companies will get together in group exhibits to showcase their technologies in live interactions, enabling visitors to experience sub-processes in a larger context.
Hexagon Ragasco has sold 15 million of its composite LPG cylinders worldwide.
LM Wind Power's first two sets of LM 66.6 blades have been installed on Shanghai Electric Wind Power's 4.0 MW-136 wind turbine in China.