TPT July 2012

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Technology News

Unique cold pilger tube mill EZTM JSC is developing a unique cold pilger rolling tube mill CRTM 380 that is intended for production of seamless cold rolled tubes from carbon, alloy and stainless steel grades. the finished tubes and allows using mandrels with slight taper.

mechanism eliminates the ingression to the foundations of high-efficiency cooling lubricant, based on mineral oils, which is used for cooling of the deformation zone, as well as mixing with lubricant used in the drive mechanism.

It is the first time when the mill for the billet of such size is performed without transmissions but using of servo drives for mechanisms, which perform feed and turn, that increases significantly its technological capabilities. Designed arrangement of the stand unit and drive

The tubes rolled at the mill have precision sizes of thewall thickness, outer and inner diameter, and high quality of the outer and inner surfaces. Such tubes are used in space and air engineering, oil and chemical engineering, ship building and other industries. The design decisions which are applied for the CRTM-R 380 roller are patented. It is the first time when the mill for the billet of such size is performed with end loading scheme which allows to perform reloading without extracting of the mandrel from the deformation zone, that increases the accuracy of Fast cutting SAWING bar or tube is a machining process that all too often leaves the operator to decide the speed of the blade and the downfeed rate, which means it is the operator who dictates the cutting efficiency and, therefore, the actual cost. However it is possible to take the guesswork out of the process and to achieve significantly improved production rates as well as longer blade life. Danobat’s range of heavy-duty automatic horizontal bandsaws offers a maximum round cutting capacity of 420mm for the smallest model up to 1,100mm for the largest model. All models in the range are designed to cut difficult materials such as Inconel, Hastelloy, titanium and stainless steel as well as mild steel. The new iDS 5A, which has a cutting capacity up to 600mm in width and 520mm in height, achieves a blade speed of 18-150m/min courtesy of an 11kW main motor. In addition to an enhanced twin column structural design, the iDS 5A also features the latest version of the intelligent cutting system, the new “intelligent cutting software”.

EZTM JSC – Russia Website: www.eztm.ru

Consistency is the ‘mother’ of precision.

To achieve seamless perfection in your drawn and reduced finished tubes, you need ‘mother’ (or ‘starter’) tube hollows with extreme uniformity of wall thickness and consistent concentricity. And that means your search begins and ends at Tube Hollows International (formerly Dearborn Precision Tubular Products of Fryeburg, Maine). We can meet your specs precisely for deep hole drilling, trepanning, honing, grinding and turning …working with all commercial and medical grade alloys— stainless, titanium and carbon steels … for a range of demanding industries— aerospace, medical, oil & gas, nuclear and automotive . For ‘mother’ (or ‘starter’) tube hollows with the most consistent concentricity and extreme uniformity of wall thickness, count on the world leader in seamless precision: Tube Hollows InTernaTIonal

395 Portland Street, PO Box 160, Fryeburg, ME 04037 USA T 1.207.935.8823 • F 1.207.935.8824 • TubeHollows.com

Danobatgroup – Spain Website: www.danobatgroup.com

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J uly 2012

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