TPT July 2014

Industry News

Three-roll RSB technology BEIMAN Special Steel Co, part of the Dongbei Special Steel Group, has concluded a contract with Friedrich Kocks GmbH & Co KG for the delivery, assembly and commissioning of a reducing and sizing block (RSB) combined with the equipment and process for temperature-controlled rolling (LTR). block in the existing bar mill downstream of the 2-high roughing and intermediate mill consisting of 20 stands. The 3-roll block is able to roll any finished size of the whole product range as straight length onto the cooling bed out of a few entry cross-sections from the roughing and intermediate mill. The rolling configuration program Bamicon calculates optimum adjusting values for motor speed, rolls and guides as well as gear stages depending on the requested finished product.

technology. It simulates the temperature development of the rolled product, calculates the quality and quantity of the micro-structural development, and predicts the mechanical properties of the rolled cross-sections. The scope of supply includes quick automatic stand change system, stand and roll workshop with quick roll change, CAPAS computer-aided system for precise adjustment of rolls and guides in the stand, and the remote control of passes and guides of the 3-roll stands in the mill line. The total package is completed by supervision of assembly, commissioning and training of customer personnel. Commissioning of the modernised bar mill with the Kocks 3-roll RSB is planned for the end of 2014/beginning of 2015. Friedrich Kocks GmbH & Co KG – Germany Fax: +49 2103 51249 Email: marketing@kocks.de Website: www.kocks.de

After positive results and experience with the operation of the 3-roll RSB in the combined wire rod and bar mill at Dalian Special Steel, a second company belonging to the Dongbei Special Steel Group decided to expand and modernise its bar mill by implementing the 3-roll RSB technology. After completing the modernisation, the mill will produce 504,000t/a bars in SBQ quality within the dimension range of 16 to 100mm Ø. The new 370mm RSB in heavy-duty design, which will be equipped with four stand positions, will be designed for temperature-controlled rolling at low temperatures. The RSB will be operated as finishing

The LTR process with closed-loop control and corresponding equipment for the whole mill line is also included in the order. Kocks is in charge of the process know-how as well as engineering and hardware. For the first time, the Kocks Microstructure Simulator (KMS) will be applied as a supplement to the LTR process. Kocks developed KMS as a new software program for process simulation in long product mills particularly designed for the 3-roll

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J uly 2014