EoW November 2013

News Technology

Wire die is vital for efficiency and quality

The wire die is vital to the efficiency, quality and profitability of a wire mill. The die must have the correct geometry and tolerance or there will be inconsistent quality, customer returns, increased scrapes, operator frustration and down time. Tolerance has equal importance as geometry. The real diameter of dies, particularly final dies, has to be as much as possible to the stated diameter, ie with narrow tolerance. As to the finishing dies and when drawing thin wires, dies must be used measuring the wire elongation instead of tolerance on wire diameter. To optimise the performance efficiency of the high-speed multi-wire drawing operation, Ajex & Turner has introduced long nibs. Wire has better finishing and fewer breakages, and the life of the die is much more than short nib. The company is equipped with Conoptica, the world’s highest die inner geometry checking instrument from Norway. The print out of bearing, blending and reduction angle can be taken to check complete die geometry. Recut or repolish die on observation of wear ring of wire contact to maximise die life; filter lubricant to remove metal fines to maximise lubricant flow, wire finish and die life; do not exceed New bend-optimised fibres fromTratos Guidelines for customers include:

▲ ▲ The die must have correct geometry and tolerance

maximum die size recommendation for blank size; decrease bearing length for higher speed drawing; use finer grain dies blanks for improved wire surface finish and in drawing ferrous and plated wires; use coarser grain die blanks for drawing larger size non-ferrous wire to provide longer die life and improved wire dimensional control; in high temperature drawing of tungsten and molybdenum wire, maintain reducing atmosphere in drawing zone to minimise detrimental oxidation effects and maximise die life; and use matched elongation die sets in multi-wire drawing machines.

Ajex & Turner Wire Dies Co – India Website : www.ajexturner.com

APP-100 packaging system M Power Tech Inc has launched a new packaging system, APP-100, for AC power cord and DC cables that have to be wound and tied before being packed into a cardboard sleeve or plastic bag.

enterprise networks and high-density Fibre-to-the-Home applications.” AllWave FLEX is an ITU-T G.657.A1 bend-optimised single-mode fibre, providing outstanding macrobend and microbend performance. Bending loss is extremely low across the full usable spectrum of wavelengths from 1,260 to 1,625nm and these fibres can be coiled into a loop with less than 0.5 dB incurred loss at 1,625nm and less than 0.2 dB incurred loss at 1,550nm – five times better than the bending performance of conventional single-mode and leading ‘low water peak’ fibres. AllWave FLEX is suitable for indoor applications and Outside Plant (OSP) that require bend radii as low as 10mm. AllWave FLEX+ fibre offers many of the same benefits and is the first Zero Water Peak (ZWP) that actually exceeds both ITU-T G.657.A2 and G.652.D specifications. The range is suitable for many applications in which small bend diameters may be required, including central office buildings, backbone cabling in Multi Dwelling Units (MDUs) and enterprise networks. Tratos – Italy Website : www.tratos.eu

Tratos has launched the AllWave® FLEX and the AllWave FLEX+ bend-optimised single-mode fibre range, developed alongside cutting-edge fibre optic network solutions manufacturer OFS in order to offer customers a brand new solution for any application that requires exceptionally small bend diameters. Featuring a 200-micron coating, AllWave fibres occupy 46 per cent less area than conventional 250-micron coated fibres, enabling them to be used in cables with higher fibre counts per tube and in microcables where cable diameters must be minimised. The bend-optimised design enables tight, low loss bends and the coating meets dynamic fatigue characteristics without risking fibre strength, resulting in long-term reliability and ultimate peace of mind for the customer. Mirko Gori, area sales manager for Tratos, said: “The 200-micron Allwave FLEX+ fibres offer enhanced bend performance and low diameter, as well as full compatibility and compliance with the installed base of conventional G.652.D single-mode fibres. This makes them an excellent choice for higher density cables for our customers’ access networks,

▲ ▲ The APP-100 fromM Power Tech

The APP-100 includes automatic winding and tying machines, conveying system, paper or plastic packing machine, labelling device, quantity counter, auto loading system to send packed cables into a carton, and auto box sealing machine. An optional palletising system is also available to complete the production line with less manpower and cost. M Power Tech Inc – Taiwan Website : www.mpfa.tw

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November 2013