TPT November 2007

Technology Update

Equipment for corrugated and spirally wound plastic pipe production Cincinnati Extrusion, Austria, is a supplier of extrusion lines for producing smooth and corrugated pipe. In recent years, the demand for corrugated pipe has increased, particularly for wastewater and sewage transport in pipe diameters up to 1,200mm. Pipes up to 3,000mm in diameter are manufactured by a spiral-winding process. Bauku is a German company that provides machinery for the production of spirally wound large-diameter pipe. Cincinnati Extrusion has entered into a partnership with Bauku to supply extrusion lines for spirally wound pipes, combining expert machine technology from Bauku with latest extrusion technology from Cincinnati Extrusion. In the Bauku production process, the extruder is placed on a mobile carriage running on rails alongside several winding stations. The winding stations are designed to accommodate mandrels from 300mm to 3,000mm nominal width (a width of 3,500mm is also possible, as an option). With different profile dies, the extruder can produce virtually any type of pipe profile and also extrude pipes with high wall thicknesses by stepless or multi-layer processes. The standard length of pipes produced is 6m. As a rule, these pipes are extruded with a socket and spigot, so that the socket joint automatically becomes an integrated part of the finished product. The basic extrusion line model is used to produce spirally wound pipe with diameters ranging either from 1,100mm to 1,800mm, or 2,000mm to 3,500mm. The winding stations required for each diameter range can be retrofitted on a modular basis. Lines can also be supplied that are specially designed for small pipes (300mm to 1,000mm). Cincinnati Extrusion GmbH – Austria Fax : +43 1 610 068 Email : welcome@cet-austria.com Website : www.cet-austria.com

pipes, but deliver faster, cheaper installation with less environmental disturbance. BorSafe grades are produced using Borealis’ proprietary Borstar PE 2G technology, the latest generation of multi-modal processes that enable the molecular tailoring of PE, to provide an optimal balance between processability and mechanical strength. In addition to durability, BorSafe HE3490- LS-H benefits pipe converters, due to its extrudability. German pipe producer Gerodur has chosen BorSafe HE3490-LS-H for its multi-layer pipe system for non-conventional installation techniques. Mr Henke, managing director of Gerodur, commented, “ Our system has been designed to answer the latest trends in installation techniques which are more demanding on the pipe. Borsafe HE3490- LS-H is the cornerstone of this system, and we have chosen it to help ensure long-term reliability and service-life to our customers. ”

to water savings by eliminating leaks and ensuring long-term performance for utilities and consumers. The United Nations calculated that over 2 billion people face water scarcity, making its conservation one of the most urgent global challenges. Pipes manufactured from BorSafe are characterised by their resistance to slow crack growth – one of the key requirements for water pressure pipes. Slow crack growth can be caused by surface scratches or notches created prior or during installation, or by external point-loads on the pipes, such as rocks. The phenomenon can cause long-term weakness in pipes, allowing water to escape. The durability of BorSafe HE3490-LS-H was tested by passing it for 18,000 hours in the Notch Pipe Test (NPT), 100 times more than required by the European standards for PE drinking water pipe systems. BorSafe also exceeds the specified German requirements, defined as Full Notch Creep Testing (FNCT). BorSafe HE3490-LS-H is suitable for the latest installation techniques, such as old pipe relining or sandless bedding filling, which have a tougher, more aggressive impact on

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Borealis AG – Austria Fax : +43 122 400 333

Email : info@borealisgroup.com Website : www.borealisgroup.com

Tooling service for tube bending machine manufacturers Bend Tooling Inc, USA, is a manufacturer of products for rotary-draw tube-bending, including inserted mandrels and wipers, single-piece poppet links for high-production tube-bending, and offset-geometry feathered edge wipers for high-pressure tube- bending. The company also offers tapered-leaf die sets for easy loading and unloading of square and rectangular tubes.

The company has drawn upon its experience to provide a new engineer-to-order tooling service for manufacturers and distributors of rotary-draw tube- bending machines. The service includes complete design-and-build of tool sets from raw data, ranging from standard sets for single-bend jobs, stacked sets with compound clamps for multi-bend applications, to elliptical tooling for hydroforming pre-bend operations. Die sets are available in a number of styles: inserted, double-inserted, quick-change, integrated stack,

› Bend Tooling Inc now provides an engineer-to-order tooling service

platform, and tapered-leaf. Mandrel and wiper tooling is also available in different styles, inserted and solid-body. All Bend Tooling products are precision-machined to completion (with no hand-working), including wiper feathered edges. All die sets feature a proprietary metallurgy and heat treatment for precision, toughness, and durability. All mandrels and wipers are manufactured from high-quality nickel-aluminium-bronze, aluminium-bronze, and alloy steels. Bend Tooling uses Datafacturing ® , an automated manufacturing technology, to quickly deliver tool sets to machine-builders and distributors. Bend Tooling Inc – USA Fax : +1 616 454 9958 • Email : info@bendtooling.com • Website : www.bendtooling.com

Bauku Troisdorfer Bau- und Kunststoff GmbH – Germany

Fax : +49 2262 720 726 Website : www.bauku.de

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N ovember /D ecember 2007