TPT November 2009

B ending , E nd F orming & S waging

Simultaneous pipe bending and heat treating of heavy wall tube

A typical system is skid mounted and includes the induction heating quenching and bending equipment together with a single operator control panel. Ajax Tocco Magnethermic specialises in the design and manufacture of ‘engineered’ induction systems to meet individual cus- tomers' requirements. Investments include extensive in-house heat treat facilities complete with metallurgical laboratories, enabling process development to meet spe- cific requirements. FEA analysis is routinely used to minimise development times. Ajax Tocco Magnethermic Corp – USA Fax: +1 330 372 8608 Tube cutting and bevelling machine The TT-NG series of portable and self- centring tube cutting and bevelling machines from Protem are designed to perform accurate cutting and bevelling works on tubes and pipes of all schedules in one simultaneous operation, particularly on tubes with large wall thicknesses. The robust Protem TT clamshells can be used in various positions and are suitable for all types of materials. Their split frame configuration allows the clamshells to be opened in two half-shells. For manual clamping, four independent adjustable jaws are used. The nine models in the series range from the 45kg TT-NG 168 with a machining capacity of 60.3-168.3mm (2"-6"), to the 205kg TT-NG 900 with a capacity of 660.4- 914.4mm (26"-36"). Email: info@ajaxtocco.com Website: www.ajaxtocco.com

Ajax Tocco Magnethermic has combined its knowledge of hardening oil pipe to API standards with its pipe bending technology to both bend and heat treat heavy wall

tube simultaneously. The process is for a high specification 3" oil industry part, with typical working pressure of 15,000 psi (test 22,500 psi).

 Bending and hardening of heavy wall tube

Swaging systems and tooling

HydroPro Inc, USA, manufactures systems and tooling for hydro-forming or swaging. The company’s equipment can full depth expand a 400mm (15.75") expansion zone in just a few more seconds than it takes to expand a 40mm (1.57") zone. The expansion pressure and dwell times can be precisely set and controlled to accommodate different tube material characteristics, which is of particular use

when using tubes with high spring-back properties such as titanium and super duplex stainless steel. HydroPro’s SleevePro system uses hydroexpanding technology to expand sleeves or liners inside damaged parent tubes, to repair cracks or strengthen eroded or corroded tubes. The BoilerPro system mechanically sets and flares the ends of boiler tubes prior to hydroexpanding or mechanically rolling the joints. The TubePro WeldLock system locks the tube in the tubesheet, precisely sets the tube protrusion and centres the tube in the hole, while leaving small air gaps that allow weld gases to escape during the welding procedure. The TubePro WeldLock tooling’s automatic centring process sets the weld gap between the tube and the tubesheet hole constant throughout 360° of arc at the tubesheet face, in around six seconds. This system eliminates the need for tack welding, or lightly rolling tubes in place to prevent movement prior to welding or tube-to-tubesheet expansion. This is said to enhance the quality and consistency of the finished weld, whether performed with automatic orbital welding equipment or by manual welding methods.

Protem SAS – France Fax: +33 4 75 57 41 49 Email: contact@protem.fr Website: www.protem.fr Protem GmbH – Germany Fax: +49 7247 9393 33 Email: info@protem-gmbh.de

HydroPro Inc – USA Fax: +1 573 732 3318 Email: engineering@hpro.com Website: www.hpro.com

 Protem’s portable TT machine in action

 HydroPro’s HPX 6000 base system

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N ovember 2009

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