TPT March 2016

T E CHNOLOG Y

Engineered solutions for the tube industry EMMEDI designs and manufactures customised induction systems and solutions for the tube and pipe industry. More than 1,000 units are in operation worldwide and customers can now benefit from widespread technical support and after-sales services through local representatives and partners.

Custom annealing solutions

The company is taking advantage of new synergies with Ajax Tocco Magnethermic, an experienced manufacturer of induction heating equipment, to offer a wide range of products. The welding line includes equipment for high reliability, easy maintenance and simple design of inductor coils. Solid state welders have very compact cabinets and modular MOSFET-based inverters. Vacuum tube welders have been used by the tube industry for decades, with robust design and reliability, and are available with an output frequency range of 1:1.3 or 1:2. Contact welders are suitable for large pipes with high-strength materials, providing a high welding quality with a considerable energy saving. The automatic welding table is an automatically adjustable support on

welding performances or to analyse events in the recipe database. Seam annealing units are dedicated to the normalisation of the heat affected zone (HAZ) required to meet API standards for oil and gas applications. Independent heating units with individual power control for each head grant increased operational flexibility, and the new linear coil with reduced width allows the treatment of pipes from 30 to 660mm OD. Temperature management is precise thanks to a closed loop PID system that compares the requested set point with the actual temperature read by the pyrometer. Global control of the complex system is managed through an integrated management desk. Full body annealing is a generic heating process used for applications ranging from API tube quench and tempering, to oil and gas tube polyethylene coating, construction tube painting, hardening, bending and swaging. Emmedi systems are fully customisable to meet production requirements: designed with IGBT or MOSFET inverters, with power range from 30 to 3,000kW and temperature from 60 to 1,200°C.

three axes for the welding head, which allows the operator an accurate inductor positioning directly from the welder control desk, increasing fast and easy production set-up. Emmedi has also developed the Welding Management System (WMS) software platform. Installed in an industrial PC on the control desk, WMS allows real-time checking of all main welding functions, and the memorising of all welding parameters and events. Stored working data can be used to repeat the best

Bright annealing

Emmedi – Italy Email: info@saetemmedi.com Website: www.saetemmedi.com

Pipe bevelling solution from Cofim COFIM Industrie is a supplier of pipe bevelling solutions. Its machines are equipped with a safety system and full-function control box, and a quiet motor when electric drive is used. The machines use a cold cutting process that does not affect the tube material in the prepared zone, allowing any type of welding to assemble the line. The company states that using a Cofim machine makes it significantly easier for an operator to produce

welding preparations of any shape, safely, rapidly and repetitively.

Cofim Industrie – France Email: info@cofim.fr Website: www.cofim.fr

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M ARCH 2016