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Primetals Technologies supplies additional continuous slab caster to the new HBIS Laoting plant

Chinese steel producer HBIS Laoting Steel Co. Ltd. has ordered a new two-strand continuous slab caster from Primetals Technologies.

The casting plant has a capacity of 2 million metric tons of slabs per annum and will form part of a new production facility for high-quality steels being built in the Laoting district in the south east of the autonomous city of Tangshan. Potentially hazardous tasks will be handled by LiquiRob casting platform robots. Two slab casters have already been ordered in 2017 and will start operation in 2019. This third continuous slab caster is scheduled for commissioning in February 2020.

HBIS Laoting was founded in 2017 in order to transfer production capacities out of the core city of Tangshan,.and belongs to HBIS Group Co., Ltd. HBIS Group is one of China's largest iron and steel material manufacturers and comprehensive service suppliers.

The two-strand continuous slab caster is designed for a production capacity of 2 million metric tons per annum. It has a machine radius of 9.5 meters and a metallurgical length of 35.1 meters. It casts slabs with a thickness of 230 millimeters in widths ranging from 800 to 1,600 millimeters. The maximum casting speed is 1.8 meters per minute. The range of products covers ultra-low carbon and low carbon steels, deep drawn, structural peritectic alloyed steels, and pipe grades.

Primetals Technologies is responsible for the detail engineering of the casting platform and the strand-guiding system, the basic and detail engineering of the maintenance area, as well as the engineering of the automation and the software for the new continuous slab caster. The scope of supply includes the complete electrical installations and automation, as well as core components, such as mold and mold oscillator, bender and Smart Segments for the strand-guide system. Primetals Technologies will also supervise the installation and commissioning, and conduct the customer training on site. A LiquiRob system will manipulate the hydraulic cylinder of the ladle slide gate and the media connection in the ladle area. Another LiquiRob system on the ladle caster platform will manipulate the ladle shrouds, measure the temperatures, and control the firing of the ladles.

The casting plant will be equipped with a straight cassette-type Smart Mold with LevCon mold level control, Mold Expert for the automatic breakout detection system and process data monitoring, DynaWidth for changing the width of the slab during operation, a DynaFlex mold oscillator and an electromagnetic mold stirrer. I-Star rollers will be used to support the strand in the segments of the strand-guide system. The DynaPhase and Dynacs 3D process models will be used for the dynamic control of the strand temperature. They calculate and dynamically control a three-dimensional temperature profile along the whole length of the strand. This enables the working points of the strand cooling, and thus the final strand solidification, to be determined precisely as a function of the casting speed, slab format and steel grade. DynaGap Soft Reduction 3D will be used to improve the interior quality of the slabs. The roller gap is dynamically adjusted during the final solidification in line with the working points calculated by Dynacs 3D. The center and edges are cooled in the bending section and segments to allow uniform, optimal cooling over the entire width of the slabs.

News No: 3493
Date: 2019/01/29 - 18:47
News Source: Primetals

Primetals Technologies  HBIS Laoting Steel Co.  continuous slab caster 

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