WCA January 2009

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PC wire line Mario Frigerio has a range of wire drawing lines available, including a new PC wire line for wires of up to 13mm diameter used for high-speed train sleepers. The in-line cutting system can carry out up to 60 cuts per minute. In order to produce straight wires at this diameter, the Mario Frigerio machine has twin capstans of 5,200mm diameter. This flexible machine allows the end user to treat 2/3 wires or a 7-wires strand. It uses a twin take-up/payoff spooling unit, the fully automatic Mario Frigerio layer winder. This line is equipped with a 500 kW furnace that allows a run speed of up to 400m per minute, in batches of 6 tons on the treatment line payoff, and double load on strand take-up/payoff. It has a 1,200mm capstan drawing line, made by Mario Frigerio, with horizontal payoff and the DIN 1600 spooler.

Mario Frigerio SpA – Italy Email : info@mariofrigerio.it

Fax : +39 0341 368 385 Website : www.mariofrigerio.it

Drawing equipment from Mario Frigerio ❍ ❍

For over 50 years, Niehoff has been developing a wide range of wire drawing machines and lines which cover all process steps in the non-ferrous wire drawing and in-line annealing process. Wire drawing machinery supplied by Niehoff is currently being used to produce wire from copper, copper alloys, aluminium, aluminium alloys, bi-metals such as copper clad aluminium and steel, plated copper, and multiple other kinds of composites as well as wire made of special materials with final diameters down to 0.014mm. The most recent additions are the new MSM224 drawing machine for the intermediate wire range and the MT200/ RI170.2 telephone cable wire drawing line which was introduced at the wire 2008 trade show. The MSM224 drawing machine is Niehoff’s latest offering for drawing wires made of copper alloys such as brass, bronze, German silver, nickel and nickel alloys as well as other non-ferrous metals like platinum, rhodium and special materials. This machine is designed for an inlet diameter of 3.5mm and a final diameter range of 0.8mm to 1.8mm and can work with speeds up to 25 m/s. The drawing capstans are individually driven by water-cooled motors. This drive principle enables a minimised slip operation resulting in wire with a very high surface quality. Other characteristics include a completely submerged drawing section and die holders with high-pressure lubrication. The MSM224 drawing machine can be combined with an inductive continuous annealer type RI250 or RI170 developed by the joint venture company Niehoff-Bühler GmbH NBM. The MT200/RI170.2 tandem wire drawing line (pictured) consists of a redesigned cone type draw box, the MT200, with an integrated RI170.2 inductive annealer and preheater and is designed for tandem inline operation with an extrusion line. The Continuous development in drawing technology

annealing technology was derived from the same inductive annealer technology as mentioned above, which has been successfully proven for years in various annealing applications. Optionally the annealer can be equipped with a calibration draft to guarantee close tolerances of the wire properties. Using dancer control, the line can be combined and synchronised with all existing types of extruders. A non-contacting temperature measuring system controls the wire temperature between annealer and extruder. The established MMH type multiwire drawing machines with an integrated RM continuous resistance annealer can simultaneously produce up to 48 wires with single wire final diameters of up to 0.05mm. These wires are characterised by highly homogeneous properties. In addition to multiwire drawing machines for copper wire, Niehoff offers 8 and 16-wire drawing machines for aluminium and aluminium alloy wires. The latest electronic control systems and drive technology implemented in the above machines have been introduced into multiwire drawing technology for plated wires and special applications.

The MT200/RI170.2 tandem wire drawing line ❍ ❍

The Niehoff range of drawing machines is completed by the MKN101 wet drawing machine. It is based on a compact modular concept that enables extreme flexibility and scalable configurations. The machine is designed for superfine wires made of copper, aluminium, and non-ferrous alloys, as well as precious metals and their alloys with final diameters down to 0.014mm. All these drawing machines can be configured for inline operation with a continuous annealer. Niehoff and Niehoff Bühler NBM offer a broad range of conductive and inductive continuous annealers specially designed to the specific properties of all kinds of non-ferrous wires. Maschinenfabrik Niehoff GmbH & Co KG – Germany Fax : +49 9122 977 155 Email : info@niehoff.de Website : www.niehoff.de

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Wire & Cable ASIA – January/February 2009