TPT May 2014

May/June 2014 Vol 27 No 3

The May Issue Welcome to the latest issue of the magazine. inside you will find all of the very latest tube and pipe technology and industry news as well as a feature on bending, endforming and swaging on page 78. We also have an in-depth article from Shandong Province about the selection and application of roll for welding steel pipe and cold roll formed steel on page 90. This magazine is being distributed at

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Rory Mcbride – Editor

several important trade shows including the well established Lamiera 2014 in the beautiful city of bologna, italy and at Tube Russia, which is now one of the leading tube shows in the world. Many of you will just have returned from the Tube Düsseldorf show and i hope it was a great success for your company and that everyone had a safe journey back home. our entire team flew out to germany so after a long build up it is exciting to finally get to the show and see this important industry of ours in all of its glory. Let’s just hope no volcanos decided to erupt this time… in the July issue of the magazine, which will be distributed at Tube China 2014, we have features on finishing and end finishing, washing and cleaning technology and tube and pipe mills so please email me at rory@intras.co.uk if you have any stories that you would like included. Enjoy the magazine. On the cover . . . The roots of EFD induction go back to the launch in 1950 of a universal induction hardening machine by the german company induktionserwärmung Fritz Düsseldorf gmbH (FDF). While FDF was expanding in the 1970s, an induction revolution was taking place in norway, where engineers had figured out how to transistorise frequency converters for induction heating. in 1981 three of those engineers founded ELVA induksjon. in 1983 they unveiled the Minac range of mobile converters. Workpieces no longer had to be brought at great cost to a stationary induction heater – the heater could now go to the piece. in 1991 the managing directors of FDF and ELVA met by chance. They talked… and speculated. FDF was strong in stationary induction hardening machines. ELVA was the agile innovator with a track record in finding new applications for induction heating. What if the two companies got together? in January 1996 FDF and ELVA merged to create EFD induction. And the rest is, as they say, history. Today, EFD induction is Europe’s largest supplier of induction solutions for industry (number two worldwide, but they aim to change that!). if you’d like to know more about them, their products, and how they can help boost your productivity, just get in touch. Putting the smarter heat to smarter use www.efd-induction.com Visit:www.efd-induction.com/weldacreport Exclusive report: How the EFD Induction Weldac really works The international magazine for the tube & pipe industries VOL27 NO3 US$33 MAY2014

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90 ARTiCLE: SELECTion AnD APPLiCATion oF RoLL FoR WELDing STEEL PiPE AnD CoLD RoLL FoRMED STEEL by Yuan Hou-zhi, Liu xing-yi, Shandong Province SiFang Technical Development Co, Ltd, China