thyssenkrupp Steel Europe AG

thyssenkrupp Bolsters Electric Mobility Production with Annealing, Isolating Line

/ ANNEALING NEWS, AUTOMOTIVE HEAT TREAT NEWS

A new annealing and isolating line has been supplied to thyssenkrupp Steel for the production of high-grade NGO (non-grain-oriented electrical steel strip). This strip processing line comprises a precise heat treatment in which the structure of the cold-rolled strip is recrystallized during the annealing process, followed by the application of an insulating layer to ensure optimal electrical properties. This is particularly important for the materials used in motors and generators installed in electric vehicles.

The new processing line, supplied by the project partner, SMS Group, has an annual capacity of 200,000 tons and is designed to process electrical steel strip in widths of up is now in operation. SMS technology enables the production of electrical sheet for energy-efficient applications, for example electromobility. The technological core of the line is the combined heat treatment and coating process.

With this line, the modernization of thyssenkrupp‘s Bochum location is nearly complete, allowing the steel producer to better serve its clients in the automotive, energy, and other manufacturing sectors. The new plant will allow the manufacture of up to 0.2 mm thin electrical sheet with particularly homogeneous mechanical and magnetic properties, specially designed to meet the requirements of highly efficient motors used primarily in electric vehicles. The finishing line is scheduled to go on stream in 2026.

“This facility not only represents a huge step forward in our production capacities,” said Dr. Harald Espenhahn from thyssenkrupp Steel Europe, “it enables us to manufacture high-quality NGO steels that allow our customers to meet the changing demands of the market and to develop products with increased energy efficiency.”

3D model of the new annealing and insulating line for the production of non-grain-oriented (NGO) steel at thyssenkrupp Steel Europe’s Bochum site

Main image: The team from thyssenkrupp Steel Europe and SMS Group preparing to start up the pioneering plant technology for the manufacture of high-grade electrical sheet / L to R: Engin Karakurt, Chairman of the Works Council of thyssenkrupp Steel in Bochum; Dr. Harald Espenhahn, Head of Technology and Environmental Management, thyssenkrupp Steel; Andy Rohe, Head of Downstream Operations, thyssenkrupp Steel; Thomas Eiskirch, Mayor of Bochum; Dr. Marie Jaroni, Chief Transformation Officer at thyssenkrupp Steel; Markus Kovac, Head of the Bochum Plant Area, thyssenkrupp Steel

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thyssenkrupp Steel Europe to Receive Retrofit Combustion System

/ BULK GASES & SYSTEMS NEWS, FEATURED NEWS, MANUFACTURING HEAT TREAT

HTD Size-PR Logothyssenkrupp Steel Europe (tkSE) has given a parent company of a North American combustion company in Ohio an order to retrofit a FBA 8 combustion system.

Within the scope of a larger modernization project, thyssenkrupp Steel Europe AG (tkSE) will upgrade the combustion system of the FBA 8 galvanizing line, which is located at the Dortmund plant. The newly implemented heating system will provide drastically lower emissions.

The purchase order for delivery, assembly and commissioning of 195 modernized self-recuperative burners has recently been placed with WS Wärmeprozesstechnik GmbH. The heating system will achieve exceptionally low NOx emissions due to proven double P-tube design and the patented FLOX® combustion process. The retrofit is to be completed by mid 2022. Detailed planning will keep line down time to a minimum for the duration of the retrofit.

Dr.-Ing. Joachim G. Wünning
President
WS Wärmeprozesstechnik GmbH

In the future, the tkSE plant in Dortmund will operate three vertical strip lines, positioning it as an advanced and modern site for annealing and surface treating of steel strip globally. Up to 2.000.00 tons of steel can be processed annually, once all three lines are in full operation. tkSE employs and fully relies on proven and environmentally friendly heating technology. A technology that even today is suitable for a future with green combustion gases. After the conversion, approximately 800 low emissions burners will be in operation at the Dortmund facility.

WS can rely on decades of experience with the FLOX® combustion technology. Experience gained from tens of thousands of burners successfully in operation worldwide. FLOX® enables highly efficient burners to operate while simultaneously maintaining very low NOx emissions. "It is our ambition at WS," states Dr.-Ing. Joachim G. Wünning, president of WS Wärmeprozesstechnik GmbH, "to provide solutions for all continuously operated strip lines which can reliably attain NOx emissions well below 100 mg/Nm³, with simultaneously high combustion efficiency over 80% and which are, already today, suited for a future with green combustion gases."

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thyssenkrupp Steel Europe AG Orders Walking Beam Furnace

/ ATMOSPHERE AIR FURNACES NEWS, AUTOMOTIVE HEAT TREAT, FEATURED NEWS

Dr. Arnd Köfler
Chief Technology Officer (CTO)
thyssenkrupp Steel Europe AG

thyssenkrupp Steel Europe AG, a global manufacturer in high-grade flat steel, has ordered a walking beam furnace. The furnace is designed for heating slabs and will be located at their plant in Duisburg, Germany. This furnace replaces an old reheating furnace. The scope of the contract includes engineering and the largely turnkey delivery of all equipment as well as the erection and commissioning including training.

The new furnace is designed to produce premium sheets, which will service the automotive industry. With a capacity of 380 t/h, it will be integrated in the existing hot rolling mill infrastructure. Additionally, it will be used for heating slabs made of alloyed or unalloyed steel and charged in one and/or two rows. Finally, the furnace features a combustion air pre-heating system to significantly reduce the energy consumption of the overall production. In the long term, it will assist the thyssenkrupp group with achieving their climate related emissions targets.

“The new plant [read: furnace] is scheduled to start operating in mid-2022,” commented Dr. Arnd Köfler, Chief Technology Officer at thyssenkrupp Steel.

Further, “The new plant [read: furnace] will ensure the high surface quality requirements of the automotive industry,” said Antonio Catalano, Executive Vice President of the Tenova Downstream BU, “and support our customer’s forward strategy.”

Tenova, with the companies Tenova LOI Thermprocess and Tenova Italimpianti involved in the project, will design and supply the entire walking beam furnace plant including the charging roller table and the charging machine as well as the related electrical, measuring and control systems. In addition, a sophisticated automation system developed by Tenova LOI Thermprocess will enhance the control and energy efficiency of the furnace.

The production start of the walking beam furnace is scheduled for July 2022.

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