TMK-ARTROM orders heat treatment line for tubes from SMS group

TMK-ARTROM, located in Slatina, Romania, has placed an order with SMS group to supply a heat treatment line for tubes. The plant serves for the production of seamless tubes, OCTG pipes (Oil Country Tubular Goods) as well as high-strength tubes for mechanical applications. The annual capacity is 160,000 tons. With the installation of this plant, TMK-ARTROM is strengthening its presence on the market with tubes for mechanical applications and for oil and gas exploration. The plant is scheduled to commence operation in the second quarter of 2017.

The heat treatment line ordered by TMK-ARTROM consists of an austenitizing furnace with walking beam transport system, a quenching head, a quenching tank, a walking beam tempering furnace and a cooling bed. The line allows carrying out various process steps, such as quenching, tempering and normalizing.

The heat treatment line will be able to treat tubes up to a wall thickness of 60 millimeters. Thanks to the high product flexibility, the plant is also suitable for the cost-effective processing of small batch sizes and different product groups. Eco-friendly recuperative burners with very low nitrogen oxide (NOx) emissions in the furnaces allow fuel savings of up to five percent compared with conventional burners.

The SMS group, under the roof of SMS Holding GmbH, is a group of global players in machinery and plant construction for the steel and nonferrous metals industry. More than 14,000 employees generate global sales of some EUR 3.4 billion.

Source: SMS Group

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Power X-HI stainless steel tandem cold mill from Primetals Technologies produces first coil at Beihai Chengde

  • Plant capacity is 600,000 tons of cold strip per year
  • Designed to produce stainless steels of AISI grade series 200 and 300
  • Short cold test phase and first coil produced within three months

In late December 2015, a stainless steel continuous tandem cold mill (TCM) supplied by Primetals Technologies to Beihai Chengde Stainless Steel Co. (Beihai Chengde) produced the first coil at the Beihai plant in the Chinese Guangxi Province. The mill consists of a Power X-HI type, five-stand, continuous tandem cold rolling mill and a heavy laser welder. The rolling mill has a rated capacity of 600,000 tons of cold strip per year, and is designed to produce AISI grades series 200 and 300. The cold test was performed within 17 days and the first coil produced within only three months. The order was placed in the mid-2013. It was the second order for an X-HI and the third order for a continuous TCM for stainless steel that Primetals Technologies had received from China.

Beihai Chengde is active in nickel mining and the production of narrow stainless steel strip. The company intends to use the new cold rolling mill to start producing wide strip. The continuous rolling mill handles hot-rolled, annealed and pickled stainless steel. It is able to achieve exit thicknesses from 0.3 to 3.0 millimeters from entry thicknesses of between 1.0 and 5.0 millimeters. The width of the strip varies between 800 and 1,300 millimetres.

The continuous rolling mill line comprises three main sections, each separated by strip accumulators. The entry section includes a double uncoiler station, each equipped with coil storage facilities, coil loading car and overhung mandrel uncoiler together with coil opening, flattening and shearing equipment. The Primetals Technologies welding machine is of heavy laser type (LW21H) and includes strip centering and strip cutting facilities as well as diagnostic systems.

The mill section includes five stands of Power X-HI type with associated high tension bridles and rinsing section to remove emulsion from the strip surface. The rolling speed is 400 meters per minute. The rolling stands are designed for a flying roll change, so production will not have to be interrupted to change the work rolls. This increases productivity and reduces output losses.

The exit section comprises exit bridle, inspection station, rotary shear, scrap and sample cutting, two recoilers, belt wrapper, paper interleaving feeding equipment, spool loading and coil unloading car with associated coil banding and storage. The strip looper between the rolling line and the exit section decouples the rolling process from the downstream activities, such as strip inspection and coil shearing. This means that these are no longer limiting factors on the mill throughput.

The scope of delivery also included variable-speed Sinamics drives with a total power of 22,000 kilowatts, and the basic (level 1) and process (level 2) automation. A Simatic WinCC-based solution handles operator control and monitoring tasks. It also enables distributed supervision, and features easy-to-use diagnostic and alarm functions.

X-HI is a registered trademark of Primetals Technologies in some countries.

Source: Primetals Technologies

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Gerdau Ouro Branco issues Final Acceptance Certificate for Steckel mill supplied by Primetals Technologies

  • Mill produces 800.000 metric tons of hot-rolled coil per year
  • Part of a major project for the production of flat carbon steel in Brazil
  • Primetals Technologies supplied complete mechanical, electric and automation equipment

Brazilian steel producer Gerdau has issued the Final Acceptance Certificate (FAC) for a new Steckel mill supplied by Primetals Technologies for its Ouro Branco production site in the state of Minas Gerais. The Steckel mill has an annual capacity of 800,000 metric tons of hot-rolled coil and was part of a major order placed with Primetals Technologies in 2010, comprising the complete mechanical, electrical and automation equipment.

Gerdau is the leading long steel producer in the Americas and a leading global supplier of special steels. Gerdau has industrial operations in 14 countries in the Americas, Europe and Asia with combined installed production capacity of more than 25 million metric tons of steel per year. It is also the largest recycler in Latin America and around the world transforms millions of tons of scrap into steel each year.

The Steckel mill is part of an investment program for the Ouro Branco Steel Works, which is intended to establish the Gerdau as a flat carbon steel producer in Brazil. Under the investment program, Gerdau also ordered a plate mill and a two-strand continuous slab caster from Primetals Technologies. The end products include not only high grade plates for API (American Petroleum Institute) linepipes, but also for shipbuilding, the construction industry and pressure vessels.

Primetals Technologies supplied all the mechanical equipment for the Steckel mill, including the Steckel rolling stand with coiler furnaces, a crop shear, a laminar flow cooling section, and the downcoiler with its associated coil handling devices as well as the complete electrical and automation equipment. The rolling line is designed producing steel strip ranging in width from 900 to 2,100 millimeters and in thicknesses between 2 and 20 millimeters. The main drives of both rolling mills are equipped with non-salient pole synchronous motors powered by Sinamics SM150 voltage source converters. The scope of supply also covers the complete instrumentation, the measuring system and the automation, and includes all the technological control systems and process models. The project also included the complete power supply, including high, medium and low voltage switchgear. The scope of supply was rounded off by fluids systems and the water treatment plants for the two rolling lines. Primetals Technologies also was responsible for supervising the installation and commissioning of the equipment supplied.

Source: Primetals Technologies

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SHANDONG RIZHAO IRON & STEEL TO EQUIP NEW IRONMAKING PLANT WITH PAUL WURTH TOP CHARGING SYSTEMS

Luxembourg, 12 February 2016. For the construction of a brand-new, 8.5 mtpy ironmaking plant, Shandong Rizhao Iron & Steel relies on the latest technology of the international market leader in Blast Furnace top charging.

Shandong Rizhao Iron & Steel and Paul Wurth signed at the end of 2015 a contract for the delivery of two Bell Less Top® charging systems for the two blast furnaces of customer’s new ironmaking plant. Each blast furnace will have an inner volume of 5,100 m3, designed for a daily production of more than 11,500 tons of hot metal. These furnaces will be some of the largest ever equipped with a Central Feed BLT®.

The order comprises all the BLT’s mechanical equipment (including material hoppers of 100 m3 volume), the cooling systems, parts of the hydraulic system, field mounted electrical and lubrication equipment and site supervision services for erection and commissioning. The tops feature some of Paul Wurth’s latest developments, such as the pressurized cooling concept for the main gearbox and spherical maintenance valves.

The customer has decided to go with the international market leader who is using his experience gained from world-wide application of a reliable technology for continuous improvement and innovation.

Equipment supply and services will be provided from Luxembourg and China. The two blast furnaces of Shandong Rizhao’s new plant shall be commissioned in 2017, respectively 2018.

Source: Paul Wurth

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Baosteel Zhanjiang commissions high-performance hot strip mill

Chinese Baosteel Zhanjiang Iron & Steel Co. Ltd. has successfully commissioned its new high-performance hot strip mill supplied by SMS group.

The hot strip mill installed at Baosteel’s new steelmaking location in Zhanjiang in the south of China has an annual capacity of 5.5 million tons. It has been designed to produce hot strip with final thicknesses between 1.2 and 25.4 millimeters and strip widths from 800 to 2,100 millimeters.

The product portfolio ranges from soft deep-drawing grades to high-strength construction steels and further to tube/pipe grades. Based on an optimized layout, the new hot strip mill consists of a slab sizing press, one two-high and one four-high reversing roughing stand, each with a flanged-on edger, seven CVC® plus four-high finishing stands, a laminar strip cooling system and two hydraulically operated coilers.

Thanks to the numerous incorporated Ecoplants technologies, the rolling mill sets a new benchmark in terms of economic efficiency of hot strip production. Ecoplants technologies from SMS group combine ecology and economy, as they reduce energy consumption and/or increase the yield.

One of the Ecoplants solutions implemented in the roughing mill is the slab sizing press. With the aid of this machine, the slab width can be flexibly adapted to facilitate the coordination between the continuous caster and the hot strip mill. Thus the slab sizing press supports hot charging of slabs, contributing to a distinct reduction in energy consumption. Using the slab sizing press offers the additional advantage that the output of the upstream continuous caster can be increased.

Key features of the finishing mill are the newly developed Sieflex®-HT high-performance spindles. The hot strip mill for Baosteel Zhanjiang is the first in China to have high-performance spindles in all finishing stands. Especially in the first finishing stands such spindles allow to transmit higher rolling torques and rolling forces as are required for the production of high-strength hot strip. Additionally, the new Sieflex®-HT spindles allow for the installation of work rolls with optimized diameters. This also contributes to reduced energy consumption.

Other Ecoplants components incorporated in the mill include the CVC® plus system (Continuously Variable Crown) with integrated work roll bending as well as profile, crown and flatness control, hydraulic differential-tension loopers in the finishing mill and thermal insulation hoods between the roughing and the finishing mill to reduce heat losses of the strip.

For strip cooling, which is a decisive metallurgical tool of the plant, SMS group implemented a concept tailor-made for Baosteel Zhanjiang‘s product range. The combination of zones coming with reinforced laminar cooling and standard cooling groups provides for high cooling rates and flexible cooling strategies, allowing a wide product portfolio to be produced in the most efficient way.

Source: SMS Group

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Final Acceptance for the 1,0M-t/y Danieli MiniMill at POSCO SS Vina Vietnam

On December 17th, 2015, POSCO SS-VINA and DANIELI successfully completed the commissioning of the new 1,0 Mt/y MiniMill Plant at the Ba Ria Works, in the Phu My Industrial Zone, and signed its Final Acceptance Certificate.

The POSCO SS VINA MiniMill Plant is the second complete greenfield MiniMill installed by the Danieli Group in Vietnam in the recent years. The new plant’s production cycle embraces the complete range of production processes, from scrap processing to steel melting, secondary refining, billet and beam-blank conticasting, as well as two hot-rolling mills for the production of:
– Billets up to 160 mm, blooms up to 200×300 mm and beam blanks;
– Deformed rounds from 10 to 61 mm dia, H-beams up to 700 mm, equal angles up to 200 mm, unequal angles up to 300×90 mm, and channels up to 400 mm in order to satisfy the growing demand for construction-grade steel products in the domestic market.
The plant also is capable of producing track shoes, sheet piles and rails for local markets and neighboring countries. The green-field steel complex includes all auxiliary plants and services (i.e., WTP, compressed air, workshops, laboratories, etc.), while Danieli Automation supplied all electricals and an advanced level 1, 2 and 3 automation system for the whole plant.

All these activities have been possible thanks to the solid partnership of the two companies, and the close cooperation of the two teams involved, showing their readiness to face future challenges together.

Source: Danieli Group

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