WCA November 2011

Technology news

Custom-made cold weld dies facilitate continuous production

British company PWM, which designs and manufactures high-performance cold welding equipment, is stepping up production of its custom-made dies for welding two different sizes of non-ferrous wire and rod. According to PWM’s managing director, Steve Mepsted, more wire manufacturers are looking for cold welding dies capable of bonding different sizes of wire during the wire drawing process. “We custom make dies specifically for this application, enabling manufacturers to weld different wire sizes together extremely quickly when changing spools, ” said Mr Mepsted. “Manufacturers can, for example, weld 2.5mm diameter wire to 2.7mm diameter wire without disrupting production, which has considerable cost benefits.” PWM’s double cavity dies are hand-made by skilled engineers in the company’s own workshops to stringent quality standards using top quality tool steel. Leading cable manufacturer Tratos has created Tratos Nuclear ® , a low voltage power cable specifically designed for use in nuclear power station cranes. Manufactured from a tinned flexible conductor, with HEPR insulation and EVA sheaths for strength and durability, Tratos Nuclear has been designed to give the best possible performance where tensile strength, bending radius, temperature and operating speed are paramount. The cable has an operational speed of 200mt/min and working ambient temperatures of -25°C to 90°C. Tratos Nuclear has undergone extensive and vigorous testing and is approved by IMQ to BTS 74 068000, NF M 64-001, CEI EN 61074 AND UNI ISO 4650. Although most of the recent demand is

❍ ❍ Custom made dies from PWM

for dies to weld wire sizes with diameters within the range 0.3mm to 1.8mm (0.011"-0.071"), PWM has made dies to bond materials with larger diameters, for example 8mm rod to 9.5mm rod. PWM offers manufacturers a fast turnaround and can provide custom-made dies within two weeks from receipt of order. Standard sizes of die can be supplied within 24 hours. PWM Ltd – UK Fax : +44 1233 820 591 Email : pwm@btinternet.com Website : www.coldpressurewelding.com

Going nuclear. . .

❍ ❍ The nuclear cables from Tratos

cables for moving applications from Tratos, which include mono-spiral and multi-spiral reeling, basket reeling, festoons and spreaders. The cables supply power, control and signalling functions.

Tratos Ltd – UK Fax : +44 1246 858 001 Email : info@tratos.co.uk Website : www.tratos.co.uk

Tratos Nuclear is one of the range of

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Wire & Cable ASIA – November/December 2011