TPT March 2012

T echnology N ews

World’s largest HAZControl technology welder

THERMATOOL Corporation has completed installation of the first 800kW variable frequency HF welder. Selectable welding frequency (in 1kHz increments) gives the operator fine-tuned heat input control over the heat affected zone (HAZ), assuring that the same high-quality weld is achieved run after run. Stabilised within ±1%, the selected welding frequency provides consistency to reproduce

a weld with enough reliability to build a brand on HAZ performance characteristics. Tube and pipe producers using over 500kW will benefit from this functionality. High-powered HFwelders have previously presented unique technical challenges to variable frequency implementation. With this installation Thermatool has opened the door to variable frequency for heavy wall tube and pipe producers, providing a 150kHz to

375kHz frequency range for an 800kW unit. Thermatool Corp continues to push power supply performance boundaries as it completes construction of a 1,000kW variable frequency welder that can operate between 200kHz and 275kHz. Thermatool Corp – USA

Email: info@thermatool.com Website: www.thermatool.com Stationary pipe-end preparation

TH WORTELBOER BV, which offers stationary pipe-end preparation machines, will present an all-new machine, the PBM- 16, at Tube Düsseldorf, Germany. Some of the improvements to the machine are: screens that are four times bigger and give a better view of the operation; a much

improved sliding system that improves sta- bility; by using a frequency regulator, speed is adjustable; larger toolheads are used to reduce tooling costs; and better feeding system of the toolhead. The company will also introduce an electric driven tube and pipe polisher resulting from requests from

customers who asked for an electric driven machine. The TPP is especially designed for cleaning the ends of pipe from rust, coating, paints etc before welding can take place. Th Wortelboer BV – The Netherlands Website: www.wortelboer.ws

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M arch 2012