TPT September 2015

Technology News

New ERW tube mill for South American customer

Linear Cage Forming Technology for square and rectangular sections, in Turkey. The Cage Forming Technology, for square, rectangular and round sections, represents a significant percentage of the company’s production of carbon steel and stainless steel tubes.

are individually motorised, in order to control the used power and the torque in every passage, consequentially reducing roll wear. The line is equipped with a quick roll- change system by cassette, removable by crane. This system reduces the timing of production changeover. Olimpia is manufacturing five similar lines, with the final destinations in Central Asia and the Far East markets. The company has also installed two complete tube mills, with its patented

A COMPLETE new Olimpia 80 tube mill for carbon steel structural sections has been put into operation in South America at the plant of one of the largest Argentinian tube manufacturers. The complete tube mill, including packaging line, can produce round tube in an OD range from 35 to 139mm, and square sections from 40x40mm to 100x100mm in a thickness range from 1.5 to 6.5mm. The maximum mill speed is 120m/min. All the stands in break down, fin-pass and sizing sections

Olimpia 80 Srl – Italy Fax: +39 0523 864584

Email: olimpia@olimpia80.com Website: www.olimpia80.com Mitchell develops new rotary die head push pointers

The 150,000lb Six Die Hydraulic Push Pointer

during die change over, which facilitates a very fast and safe method for die change. The rotary cam indexing mechanism did not possess this feature. Mitchell is also building a 150,000lb Four Die Rotary Hydraulic Tube Push Pointer, utilising the same servo head drive system, along with

THE George A Mitchell Company, based in Ohio, USA, has produced over 60 Rotary Die Head Push Pointers of various capacities over the last 52 years of business. A Rotary Die Head Push Pointer is used when more than three dies are needed to accomplish a specific schedule of point reductions. Mitchell has recently developed and built a 150,000lb Six Die Rotary Hydraulic Push Pointer for pointing solid round bars, such as superconductor material. The round bars are drawn down to superconductor wire, the ultimate product, which is used in MRI (magnetic resonance imaging) machines. The rotation of the newly developed indexing die head is carried out via the use of a servo motor and drive system. The servo system allows infinite rotational adjustment and near perfect angular accuracy. The original device Mitchell used for rotary die heads was a rotary cam indexing mechanism. These devices have proven to be very expensive and costly to maintain. In other special applications the servo motor system allows for varying angular positions, whereas the rotary cam indexing devices used previously could only achieve equal angular positions. One major safety advantage of the new servo motor system is that the rotary die head can be rotated by hand

an automatic tube handling system for

p o i n t i n g a l u m i n i u m tubes prior to drawing. The drawn tubing will be further processed into drive shaft tubes for the a u t o m o t i v e industry. The

prior to machining premium thread for the OCTG market. The tube diameters accommodated by these machines range from 2 3 / 8 " to 22". The machines are also capable of pre-forming pipe ends for T&C connections. George A Mitchell Company – USA Email: sales@mitchellmachinery.com Website: www.mitchellmachinery.com

automatic tube handling system has been developed specifically for the aluminium tubes and consists of a tube unbundling unit, entry roll conveyor and easy down discharge buck system. Past recent activity for Mitchell has been the design and fabrication of several 500-ton and 750-ton drill pipe and casing tube end-forming machines to prepare, via cold forming, the ends of seamless drill pipe and casing tubes

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S eptember 2015