TPT May 2015

Tube scarf ing systems & tools

ID scarfing with less power consumption

strength, while reducing weight and allowing more space to be used for impeders. The heavily fabricated mounting stand is now available with position sensors, including outputs to PLC/HDMI for precise repeatability, and to efficiently optimise set up time. Interchangeable tool holders

ELECTRONIC Heating Equipment’s (EHE) Canticut ID scarfing system is designed to enable the impeders to be fully integrated into the ID mandrel. It is claimed that this can reduce weld power consumption by up to 30 per cent compared with other ID scarfing methods. Supporting the scarfing tool on a cantilever removes the need for internal rolls. This key feature ensures that the mandrel covers a wide range of tube sizes and eliminates the problem of rolling weld spume or other debris into the tube wall. A Canticut unit can ID scarf pipe sizes ranging from 4.5" to 26" OD using only two mandrels. Recent improvements include a hydraulically actuated bead chopper to cut the stinger into manageable lengths for easy removal from the pipe. The use of newer high-strength alloys results in mandrels with increased rigidity and

OD tools and inserts with long-life CVD- coated carbide

coil design is important in achieving the high efficiency offered by solid- state welders. EHE coils are available to suit all types of induction welding equipment. The coils are fabricated from 99.9 per cent pure, oxygen-free, high-conductivity copper, with silver brazed joints and advanced cooling systems. Some larger coils use spray cooling, which reduces the risk of ‘hot spots’. Ferrite is a critical component in an impeder. EHE ferrite is specially made to the company’s stringent specifications, and offers claimed advantages that include lower losses, higher saturation flux density, and higher Curie temperature. EHE ferrite needs less than half the cooling time of other types, which means the impeder operates at a lower temperature, increasing its working life. This in turn means fewer impeder changes and less mill downtime. Electronic Heating Equipment Inc – USA Fax: +1 360 829 0170

and bead chopping heads can reduce mill down-time and allow the use of a wide variety of cutting tool styles to suit different grades of material and user preferences. In addition to the Canticut scarfing systems, EHE supplies impeders and impeder clusters for induction welders; premium-quality ferrite that is specially manufactured to high standards; and a wide range of off-the-shelf and custom-built coils. EHE manufactures and stocks impeders ranging in size

from 5 to over 200mm in diameter, and in lengths up to 1,500mm. Impeders are available with several types of outer casings, including high temperature epoxy/glass, Silglass™ and Ferroglass™. The range includes through- flow impeders, return-flow impeders, impeder support systems, integral mandrel impeders, hollow impeders, rectangular impeders for large mills, impeder clusters and custom impeders for special applications. Good

Canticut ID scarfing systems with cantilevered mandrel technology

Email: sales@impeder.com Website: www.impeder.com

Modular tube ID scarfing systems MANY tube mills need flexible pro- duction to meet the requirements of their customers. Alpha Metall provides a modular mechanical tube ID scarfing system that offers technical solutions for common tube ID 10-100mm. For tube ID 26-620mm the hydraulic tube ID scarfing technology it offers is state-of-the-art. Both technologies have been approved in the market for more than 30 years. The operation and training involved in the mechanical tube ID scarfing systems are easy, investment costs are competitive and the basic mechanical spare parts are available from Alpha Metall stock. Alpha Metall commissioning includes staff training and fine adjustment for perfect tube ID results. Customers can request an Alpha Metall tube ID scarfing system with a list of all the tube OD with corresponding wall thicknesses and steel grades. Inquiries on non-standard customised tube ID scarfing systems are also welcome. Alpha Metall GmbH & Co KG – Germany Fax: +49 6831 506958 Email: info@alpha-metall.de Website: www.alpha-metall.de

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M ay 2015