TPT May 2024

INDUSTRY

High capacity mill set up in record time SMS RECENTLY put the new high capacity hot strip mill (HSM) at Jindal Steel Odisha Ltd (JSOL) into operation. To JSOL’s satisfaction, the erection and commissioning of the plant took place in record time, despite temporary restrictions caused by the Covid-pandemic. SMS implemented the new HSM in the Angul works of JSOL in the Indian federal state of Odisha. This is the first hot strip mill at this location. JSOL is a subsidiary of the OP Jindal Group. The company has had a long co-operation with SMS, because SMS has already supplied several metallurgical plants to the Indian steel producer. Based on this, JSOL placed an order with SMS in 2021 for the erection of a 1,780mm HSM, to be equipped with the world’s most advanced technologies in the field of hot strip production, especially when it comes to rolling of hot strip to thin final gauges. SMS’s main scope of equipment included the primary descaler, roughing stand No. 1 in 2-hi design with attached edger, roughing stand No. 2 in 4-hi design also with attached edger, transfer bar cooling system, HIBOX ® heat preservation hoods, mandrel-less coilbox, edge heating equipment, drum shear, secondary descaler, a seven stand finishing mill, laminar cooling and three downcoilers. SMS’s integrated business unit AMOVA supplied a coil conveying system, coil strapping machines, marking machine and an inspection line. In the roughing mill section, slabs with 12m length maximum, a thickness range from 180 to 260mm and a width range from 800 to 1,680mm are rolled down to transfer bar thickness. The range of hot strip thicknesses is 1.20 to 20mm. In total, JSOL’s HSM is designed for an annual capacity of five million tons. The range of steel grades that are to be processed is very wide. These include sophisticated grades such as HSLA, pipe grades and silicon steels. The share of harder material grades is more than 20 per cent. Furthermore, very thin strips can be rolled reliably and stably. This is possible by implementation of various innovative rolling technologies. Transfer bar cooling – for optimal temperature regulation in the roughing mill, SMS installed the transfer bar cooling system. HIBOX ® heat preservation hoods – JSOL’s HSM is equipped with the latest generation heat panels of the HIBOX ® type. This simplifies the inspection and maintenance of the elements and increases the service life by factor four compared to conventional preservation hoods. Mandrel-less coilbox – arranged between the second roughing stand and the finishing mill, the coilbox forms transfer bar into coils and thereby equalises the temperature over the transfer bar length. Edge heater – the edge heater, located upstream of the finishing mill descaler, utilises inductive heating. The primary role is to enhance strip edge quality by maintaining optimal pre-rolling temperatures. Finishing mill – the seven-stand finishing mill in 4-hi design is equipped with hydraulic adjustment systems, hydraulic loopers and latest generation CVC ® plus combined work roll shifting and bending systems.

DFT

"MKK Metal to Introduce DFT Line to Double its Production Capabilities in Next 3 Years. "

They ‒ are the largest manufacturer of steel products in South India. The DFT LINE mentioned is produced and manufactured by Tengdi.

TEL:+86-13831146634

SMS group www.sms-group.com

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MAY 2024