Don't waste money with worn screws and barrels. From: British Plastics & Rubber | Date: February 1, 1997| Author: Lupton, Andrew | COPYRIGHT 1997 M.C.M. Publishing Ltd. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

The screw and barrel are the prime movers in most polymer processing. It is vital they stay in peak condition. It is also inevitable that they will deteriorate in use Andrew Lupton of Lupton Holdings, which incorporates refurbishment specialists De Novo Engineering, Nickerson Machinery, Eurotec Tooling and Screwtech (Wellingborough), describes what can go wrong, and what can be done about it.

The screw and barrel are at the very heart of the injection moulding or extrusion m...

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