TPT March 2018

16-20 April 2018

Higher frequency and higher efficiency “AFTER comprehensive testing of a range of different types of transistors, EFD Induction is now ready to introduce silicon carbide transistors in some of our high frequency, solid-state welders,” stated global sales director for tube and pipe, Peter Runeborg. industries where they are known for their compactness, productivity, reliability and efficiency.

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The Weldac series covers a wide range of power sizes from 50 kW up to 2,200 kW, and a frequency range of 90- 500 kHz. The Weldac is supported by a global network of EFD Induction factories, workshops and offices. Wherever cus- tomers are, after-sales service and support is not far away. “EFD Induction has always been at the forefront in developing equipment with the best power-to-volume ratio. Recently, we introduced the world’s first 1,000 kW welder in a single cabinet solution,” said Mr Runeborg. “We now also offer up to 1,100 kW in a single cabinet.” EFD Induction has to date installed thousands of heating solutions for a wide range of industrial applications, bringing the benefits of induction technology to many manufacturing and service companies. The company has manufacturing plants, workshops and sales and service centres in the Americas, Europe and Asia. Corporate headquarters are in Skien, Norway.

EFD Induction has a comprehensive range of solutions for the tube and pipe industry and offers a full range of consumables, including coils, ferrite, impeders and tube scarfing equipment. Weldac is EFD Induction’s family of high-output solid-state tube and pipe welders.

While the IGBT transistor is still the main power transistor with high-current capability – and in the solid-state Weldac system – EFD Induction will be introducing SiC transistors as an alternative in certain welders. “The testing yielded very promising results, and the silicon carbide transistor that we have found to be the best has proven to work extremely well. Particularly so for use in high frequency welders which are suitable for smaller pipes where impeder size is limited,” said Mr Runeborg. “So, as an alternative to IGBT transistors, we will begin to introduce SiC transistors where we see that they will be of benefit to our customers.” As one of the world’s largest induction heating manufacturers, EFD Induction is a specialist in induction heating technology, solutions and application expertise. Its heating solutions are employed throughout many demanding

EFD Induction – Norway Email: eni@efdgroup.net Website: www.efd-induction.com Machining flat or three-dimensional coils with small tube diameters

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of parts during bending operations and tube forming is ensured, with measurement in real time. VGP3D programming software for tube benders by BLM Group can also be used in the 4-Runner H1. Three- dimensional graphic programming of the piece is made simple and intuitive, and a simulation of the execution avoids multiple attempts during the production stage. In order to supply the coil, the 4-Runner H1 is equipped with a new reel with clutch, which allows it to work in neutral with commands inserted by the work program. Orbital cutting, both internal (4RIPC) and external (4RC), on the 4-Runner H1 is also electrical.

starting from the bending head, was to reduce the dimensions as much as possible, to allow the production of components that could not be manufactured previously. As part of the latest generation of completely electrical systems, the 4-Runner H1 bends by flexing right and left in process, and is multi-radius capable, with the possibility of variable radius. It can be easily integrated with a Smart bender to produce a complete system, which the BLM Group refers to as ‘bending with mandrel from coil’. All of the 4-Runner H1’s movement axes are electrical, including the blocking and support. Calibration of the equipment is easily performed thanks to the torque control, and saved with the part program. With no mechanical adjustments, maximum repeatability

THE coil bending system 4-Runner H1 is dedicated to difficult machining of flat or three-dimensional coils with small- sized tube diameters. Dimensions are important in such components, so the main goal of the 4-Runner H1’s design,

BLM Group – Italy Email: blm@blm.it Website: www.blmgroup.com

4-Runner H1 is dedicated to complex machining of tube

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MARCH 2018