Metals Magazine 2/2016 | Project and Company News
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METALSMAGAZINEINNOVATION AND TECHNOLOGY FOR THE METALS INDUSTRY
ISSUE 02 | SEPTEMBER 2016
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THE FUTURE OF METALS
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Metals Magazine 2/2016 | News Flashes
modules will be installed that include a 3-D hearth-wear model and – for the first time – a new blast furnace data-mining tool for defining the most suitable burden- distribution pattern on the basis of previous operational data. Commissioning is scheduled for late 2016.
BGH Edelstahlwerke GmbH GermanyAn order was placed with Primetals Technologies by German steel producer BGH Edelstahlwerke to mod-ernize the electric arc furnace at its Freital site in order to optimize furnace movements and convert its tap-ping system. The furnace will be modernized in two conversion stages, and the work is scheduled for com-pletion during the summer shutdown in 2017.
Georgsmarienhütte GmbH GermanyThe Level 2 ELO/Sekmet systems will be remotely up-graded and integrated in the existing human-machine interface (HMI) of Georgsmarienhütte.
H.E.S. Hennigsdorfer Elektrostahlwerke GmbH GermanyPrimetals Technologies received the final acceptance cer-tificate for the upgrading of a bar mill in Hennigsdorf. Two roughing mill stands were replaced with new Red Ring stands, which do not have housings. This solution requires less space and the new stands offer greater rigidity for rolling products with ever-tighter product tolerances.
JSW Steel Ltd. IndiaThe final acceptance certificate was received by Primetals Technologies for four LD (BOF) converters that were upgraded in Steel Making Shop II. The project scope comprised the complete replacement of the converter shells and tilting drives (for two converters); installation of bottom-purging stations, condition-monitoring systems and forced-air shell- cooling systems; and the supply of an LACAM (refractory profile monitoring) system. Converter tap-to-tap times could be shortened and the lifetime of the refractories increased. Most notably, the productivity of the LD (BOF) converters could be improved by a remarkable 18.5%.
Rizhao Steel Group Co., Ltd. (Rizhao Steel) ChinaPrimetals Technologies received the final acceptance certificate from Rizhao Steel for three (out of a total of five) Arvedi ESP lines that are now in operation at the company’s steelworks in Rizhao, Shandong province.
Outokumpu Oyj FinlandUpgrading of the Mold Expert system (strand break- out prevention) will take place in 2016 on a slab caster that Primetals Technologies originally installed at Outo- kumpu’s Tornio steelworks in 2003. The project scope includes the installation of the latest algorithms for strand-sticker detection, strand depressions and critical friction conditions as well as deviations from normal stopper- or mold-level behavior. The newly developed Process Expert system, which indicates optimum values of important casting parameters, will be implemented. Furthermore, an Oscillation Expert system will be sup-plied, which immediately issues warnings in case of any deviations from the set-point oscillation, in addition to an automatic thermocouple tester.
SSAB Europe Oy FinlandThe second of three exchanged LD (BOF) converters supplied by Primetals Technologies recently com-menced operation at the SSAB Raahe Steel Works. The third replacement converter is scheduled to start up in September 2016.
Ugitech SA FranceFrench stainless steel wire rod producer Ugitech has awarded the final acceptance certificate to Primetals Technologies for its customized engineering solution to upgrade and automate the compacting and coil- handling process in the company’s rod mill, which recently met all performance targets.
ArcelorMittal Eisenhüttenstadt GmbH GermanyThe process-optimization system of Blast Furnace 5A of ArcelorMittal Eisenhüttenstadt will be upgraded by Primetals Technologies. Advanced management
Series 5 Red Ring rolling stand installed on the roughing train of the H.E.S. bar mill, Germany
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Metals Magazine 2/2016 | Fairs & Events
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AISTECH 2016
The AISTech 2016 Conference and Exposition took place May 16–18 in Pittsburgh, Pennsylvania, U.S.A. The event attracted some 7,800 producers, suppliers, corporate leaders and academics from 41 countries to exchange technical information, build professional networks, and learn about new process and product technologies. AISTech is organized by the Association for Iron and Steel Technology (AIST).
At the conference part of the event, technical sessions, paper presentations and panel discussions provided insight into the technologies and trends that are shap-ing the future of iron and steel production. Specialists from Primetals Technologies held 27 of the 471 technical papers that were presented at the conference and participated in two panel discussions with a combined audience of more than 1,200 professionals.
The AISTech exposition featured 542 exhibiting compa-nies. At the 1,000 square-foot (93 m2) booth of Primetals Technologies, several interactive exhibits provided a unique experience for visitors. Satellite touch screens allowed customers to view slide shows and videos of the products, solutions and services that comprise the
Left: The company booth was highly visible in the exhibit hall
Top: With Mill360°, visitors experienced the latest technologies and reference plants in a 360-degree virtual-reality environment
PRIMETALS TECHNOLOGIES USES INTERACTIVE DISPLAYS AND TECHNICAL PRESENTATIONS TO PROMOTE ITS PRODUCT PORTFOLIO
Primetals Technologies portfolio. Another interactive touch screen showed interested visitors a simulation of the Arvedi ESP process.
Of all the exhibits, it was the Mill360° virtual-reality experience of Primetals Technologies that attracted the most attention. This tool allowed booth visitors to see 360-degree views of the EAF Quantum furnace, a combination rod and bar mill, and several ECO solution technologies. Large overhead monitors displayed what Mill360° users were experiencing, which attracted even more attention. The response to this innovative exhibit has been overwhelmingly positive, and the scalability of the platform ensures that AISTech attendees will have something new to see at AISTech every year. ●
Tom Suski, Communications, Primetals Technologies USA
Link to Mill360° at AISTech 2016
ON DOWNSTREAM TECHNOLOGIESFOR FLAT PRODUCTS
MORE VALUE FOR CUSTOMERS INTERVIEW: A WELLSPRING OF SOLUTIONS THROUGH VARIETY KALEIDOSCOPE OF SOLUTIONSFOR STRIP-PROCESSING LINES
FOCUS
METALSMAGAZINEINNOVATION AND TECHNOLOGY FOR THE METALS INDUSTRY
ISSUE 01 | January 2016
THE FUTURE IS VALUE-ADDEDWith the founding of PrimetalsTechnologies, an incredible array ofdownstream technologies is nowavailable from a single company tosupport producers to meet all marketrequirements for ultra-high productquality, precise dimensional tolerances,superior steel properties and efficient,competitive steelmaking.
For inquiries and more information:primetals.com
COVER IMAGE
Galvanizing line
Metals Magazine 1/2016 | Cover Story
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PICKLING LINES – PROVEN SOLUTIONS FOR CLEAN AND SCALE-FREE STRIP SURFACES Modularly designed continuous and push-pull pickling lines from Primetals Technologies are characterized by their efficiency, economic operation and use of advanced technologies such as compact scale breakers, state-of-the-art welders and turbulent pickling systems. Customers have the choice of different well-proven pickling concepts that include iBox, turbulent tank and shallow-bath tanks to meet specific requirements or preferences.
HOT-STRIP MILL – HIGH PERFORMANCE FOR NEW AND MODERNIZED MILLSThe demand for advanced, high-strength steel grades is continually growing, as are the requirements placed on product quality, mill pro-ductivity and plant availability. In order to remain competitive, new and existing steel plants must meet this challenge in the best-possible way. A wide range of solutions for hot-strip mills is offered to meet specific customer demands.
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ARVEDI ESP – ENDLESS STRIP PRODUCTION FROM CASTER TO COILIn the Arvedi ESP process, coiled hot-rolled strip is produced in a com-bined, continuous and uninterrupted casting and rolling line. Energy con-sumption and the associated costs and CO₂ emissions are reduced by up to 45% compared to conventional casting and rolling processes. With a length of just 180 m, the plants are also considerably more compact than conventional casting and rolling mills. A wide range of high-quality and ultra-thin steel grades can be produced for demanding steel appli-cations.
PLATE MILL – POWERFUL SOLUTIONS TO MEET INDIVIDUAL REQUIREMENTSImmense power combined with precision rolling, accelerated cooling and thermo-metallurgical conditioning are decisive factors for meeting the ever-increasing demands placed on plates for consistent high quality, uniform mechanical properties and dimensional perfection. Primetals Technologies assists producers to meet the highest plate standards with specialized solutions, all the way to the supply of complete plants.
STECKEL MILL – PRODUCTION EFFICIENCY FOR SMALL CAPACITIESUnique and totally optimized solu-tions offered for new Steckel mills are based on decades of experience in supplying metallurgical plants. Plant modernization combines vast experience and innovative solutions, which enables customers to improve product quality, increase operational efficiency in coil production and serve specialized niche markets.
PLATE-STECKEL MILL – ROLLING A BROAD RANGE OF STEEL PRODUCTS AT LOW COSTS Highly efficient plate-Steckel mills combine the full asset utilization of the strip-rolling process with the grade and width range of a reversing plate mill. Innovative engineering assures high productivity, metallurgical precision during cooling, and opera-tional reliability. Plate-Steckel mills provide the flexibility to roll plates or coils as required in order to quickly respond to changing market demands.
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FIG. 1: Overview of the Arvedi ESP Line No. 1 – endless production from casting to coils
Metals Magazine 1/2016 | Technology | Linked Casting and Rolling
SETTING NEW STANDARDS IN HOT-STRIP PRODUCTION
ARVEDI ESP PLANT COMPLEX COMMENCES OPERATIONAT RIZHAO STEEL
The Chinese producer Rizhao Steel ordered a total of five Arvedi ESP lines from the former Siemens VAI (now Primetals Technologies) in 2013 and 2014. In the meantime, three of the lines have been started up. With a project execution time of only 20 months to the rolling of the first coil, this remarkable plant complex has set new milestones in the steel world.
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Metals Magazine 1/2016 | Technology | Linked Casting and Rolling
Executing a project of this complexity, which features five casting-rolling lines and an incredibly short start-up time of only 20 months for the first line, is a masterpiece of project management.
Eleven million tons of annual production capacity is the impressive figure for the new ESP complex now under construction at Rizhao Steel Holding Group Co., Ltd. (Rizhao Steel) in China. Lines 1 to 3, each with a strip width of 1,600 mm and a design capacity of 2.55 million tons, are already in operation – less than two years after the original order was placed (Figures 1 and 3). Lines 4 and 5 with strip widths of 1,300 mm and an annual design capacity of 1.7 million tons will be started up in 2016. A schematic overview of the Arvedi ESP complex is dis-played in Figure 2. In all five lines, strip will be rolled to a minimum thickness of 0.8 mm. A wide variety of steel grades will be produced for a broad spectrum of steel products and industrial sectors. Liquid steel for the wider ESP lines will be supplied from new LD (BOF) meltshops with 300-ton converters. For the narrower lines, the steel will be delivered from existing converter meltshops equipped with 63-ton converters.
PROJECT EXECUTIONExecuting a project of this complexity, which features five casting-rolling lines and an incredibly short start-up time of only 20 months for the first line, is a masterpiece of project
management. Perfect cooperation between the customer, Rizhao Steel, the main contractor, suppliers and the con-struction company was a decisive factor for this success. As the new plants 1 to 3 are almost identical to the Arvedi ESP “master plant” in Cremona, Italy, many of the draw-ings could be directly sent to the manufacturers within the first weeks following the contract signature. This approach allowed the project teams to rigidly adhere to the very tight time schedule. By employing many of the same manufacturers that had built the plant in Italy, a smooth project execution was assured. Furthermore, because manufacturing of the Rizhao ESP plants took place primarily in China, transport times could be kept to a minimum. The construction company under the guid-ance of Rizhao Steel achieved the nearly impossible by installing the entire plant from groundbreaking to comple-tion within 12 months. In parallel to the commissioning of Line 1, installation of Line 2 was already close to comple-tion when groundbreaking for Line 3 took place at the end of 2014. Project work for Lines 4 and 5, which are in the second plant complex, is progressing right on schedule. Rolling of the first hot coil on Line 4 is sched-uled for mid-2016 (Figure 4).
FIG. 2: Arrangement of the five Arvedi ESP plants at Rizhao Steel, China
Slab caster
High-reduction mill
Induction heater
Descaler
Finishing mill
Cooling section High-speed shear
Coiling section
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BENEFITS OF ENDLESS CASTING AND ROLLING TECHNOLOGY• Superior geometrical strip quality and flatness• High strip homogeneity along its entire length
(no strip head or tail ends)• Considerably extended work-roll lifetime • Reduced consumption of alloys for the
production of advanced steel grades• Excellent process stability
Metals Magazine 1/2016 | Technology | Linked Casting and Rolling
SUCCESSFUL START-UPSAfter a project period of only 20 months, the first coil on ESP Line No. 1 was produced in February 2015. Drawing on the experience of the Arvedi ESP line in Italy, the caster was put into operation in combination with the high- reduction mill and pendulum shear to initially produce plates, which were pushed from the line and separately piled. After fine-tuning the coupling of the caster and the high-reduction mill, in the next step the finishing mill, laminar-cooling section and downcoiler were simultane-ously started up. This allowed the plant to produce initial coils in semi-endless and endless mode only six days after the line entered service. Thanks to the well-trained Rizhao operators, production was ramped up quickly. Minimum gauges below 1 mm were reached after two months of operation, and the first 0.8-mm coil was produced just three months later in July 2015 (Figure 5).
FIG. 3: High-reduction stands of Arvedi ESP Line No. 1
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FIG. 4: A rigid time schedule was set for the start-up of each of the Arvedi ESP lines
Metals Magazine 1/2016 | Technology | Linked Casting and Rolling
Start-up of Line 2 followed on the heels of Line 1 and its completion was ahead of the contract date. The ramp-up was highly successful and already in month four line performance exceeded expectations by far. On Septem-ber 26, 2015, six weeks ahead of schedule, Line 3 com-menced operation. Thanks to the outstanding geomet-ric, mechanical and surface-quality parameters of the strip material, the coils produced on the new ESP pro-duction lines were quickly accepted in the Chinese and worldwide markets. This allowed Rizhao Steel to rapidly increase its steel production in the saturated Chinese steel market to full industrial operation.
COMPREHENSIVE TRAINING AS A KEY FACTOR FOR SUCCESSQuick ramp-up of the new ESP lines to their designed production capacity can also be attributed to the compre-hensive training of Rizhao operational and maintenance personnel. Basic training comprised theoretical training at Primetals Technologies in Linz and Erlangen for mechani-cal, electric and automation equipment. This was followed by three weeks of theoretical and practical instruction at the Arvedi ESP plant in Cremona. In an optional program with hands-on training, operators were involved with routine operational and maintenance practices for two months at the Arvedi plant in Cremona. With this experi-ence, production ramp-up of the fully automatic plant was even easier, which is a decisive factor for a fast payback on the investment.
HIGH-QUALITY STEEL GRADES, FROM THICK TO THINThe product mix of the ESP plants comprises low- and ultra-low-carbon steels, medium-carbon steels as well as high-strength, low-alloyed (HSLA) and dual-phase steel grades. Endless operation also leads to a number of operational and production advantages. For example, strip threading and the related roll shocks are avoided. Work-roll life is increased, and crop-cut losses at the head and tail ends are eliminated. No line speed-ups create transient operation conditions. Thanks to uniform and constant rolling conditions, precise geometrical and mechanical strip properties are achieved along the en-tire strip length. Rolling of the lowest strip thicknesses is particularly attractive, since this commands the highest profit margins. In the endless mode it is no problem to produce at thinnest-gauge levels for hours at full strip width and line productivity. The constant process pa-rameters in the endless operating mode, particularly with respect to the strip-temperature profile, enable advanced steel grades to be produced at a far higher degree of accuracy compared to conventional cast-ing-rolling processes. For example, overalloying is avoid-ed during the production of HSLA and pipe grades, which results in considerable cost savings for producers. And finally, quick development of new grades is sup-ported by constant operational conditions, which means that operational parameters are easily reproducible. ●
Andreas Jungbauer, Sales Manager, Endless Strip Production
FIG. 5: First 0.8-mm coil rolled on Rizhao Steel’s ESP Line 1
20 months Line 1
Line 2
Line 3
Line 5
Line 4
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2013 2014 2015 2016
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Metals Magazine 1/2016 | Technology | Interview
What are the main challenges that your company is currently facing?Giovanni Arvedi: In my opinion, the challenges are the situation of the European market and overall steel con-sumption in the E.U. We are also facing ever-increasing competition from Asian companies and the greater quan-tities of steel sold in Europe by Asian producers. Other challenges include the devaluation of certain currencies and the associated consequences, fluctuating exchange rates and deteriorating economies.
How do you see the future of the steel industry in your market areas, and what factors need to be taken into consideration?Arvedi: We expect increased growth in the European automotive market, which is a positive sign. The future of our company is directed toward Eastern Europe and the Maghreb countries [Algeria, Libya, Mauritania, Morocco and Tunisia].
What major activities, efforts or investments are planned by Arvedi to meet the challenges that lie ahead? Arvedi: We are focusing on reducing costs. We also have plans to install a new galvanizing line for the automotive market and a new painting line.
What are the main criteria that you consider when selecting a technology supplier, and which factors do you value most when dealing with business partners?
INTERVIEW WITH GIOVANNI ARVEDI, INVENTOR OF THE ARVEDI ESP PROCESS AND FOUNDER OF ACCIAIERIA ARVEDI S.P.A., CREMONA, ITALY
A CLEAR VIEW AHEAD
Yasukuni Yamasaki, CEO of Primetals Technologies, and
Giovanni Arvedi at Metec 2015
Arvedi: Reliability, overall responsibility and the capability of a supplier to provide mechanical parts, hydraulics, elec-trics and automation from a single hand. Also, a supplier must think strategically and work for the future.
Arvedi ESP technology is now accepted worldwide. What visions do you have for the future development of your process? Arvedi: We are trying to further develop our technology and implement even better solutions for the Arvedi ESP process. We have to follow the trend for higher quality and a longer lifetime of the final product.
On the basis of six years of operational experience with the Arvedi ESP line in Cremona, can you tell us what you consider to be the main advantages of your process compared to conventional casting and rolling plants?Arvedi: The advantages include a reduction in costs relat-ed to energy and the transformation costs from liquid steel to the hot-rolled product. Furthermore, we produce a special mix of products that is unique worldwide – and which cannot be duplicated by other traditional plants.
Finally, how would you characterize your business relationship with Primetals Technologies and its former companies?Arvedi: We have a really good business relationship and cooperation with your company. And we value the high de-gree of professionalism and competence of your people. ●
CREATING THE FUTUREOF METALS AS ONEEnd-to-end ExcellenceAcross the Metals Value Chain
Primetals TechnologiesAt METEC 2015
METALSMAGAZINEINNOVATION AND TECHNOLOGY FOR THE METALS INDUSTRY
ISSUE 01 | MAY 2015
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Primetals Magazine 1/2015 | Project Review
FIRST COIL PRODUCED ON NEW COLD-ROLLING MILL AT TANGSHAN 3. CHINA: The new cold-rolling mill that a Primetals Technologies-led consortium supplied to Tangshan Iron and Steel Group Co. Ltd. (Tangsteel) entered service with the production of the first coil in January 2015. The mill consists of a coupled pickling line and tandem cold mill (PLTCM), a continuous annealing line and a galvanizing line. The rolling complex is capable of producing 1.8 million t/a of high-strength, cold-rolled strip for use in the Chinese automotive industry. The PLTCM consists of five 6-high rolling stands that are equipped with SmartCrown rolls and special actuators and control systems to ensure that the required flatness demands of the finished products are met. The entry thickness of the strip ranges from 1.5 mm to 6 mm, which is rolled to a final thickness of between 0.2 mm and 2.5 mm. Strip widths vary between 700 mm and 1,600 mm. The PLTCM, annealing and gal-vanizing lines feature a common, integrated automation system that comprises basic (Level 1) and process-optimization (Level 2) systems and models. This enables all of the plant sections to be coordinated precisely with each another, which contributes to maximum plant availability and output while ensuring consistently high product quality.
Primetals Technologies-supplied cold-rolling mill at Tangsteel, China
FIRST COIL PRODUCED ON NEW ARVEDI ESP LINE AT RIZHAO
2. CHINA: In February 2015, Chinese steel producer Rizhao Steel Group Co., Ltd. (Rizhao) rolled the first coil on its Arvedi ESP (Endless Strip Production) plant No. 1 supplied by Primetals Technologies. The plant is designed for an annual production of 2.55 million tons of high-quality, ultra- thin hot strip in widths up to 1,600 mm and thicknesses down to 0.8 mm. The plant is one of five endless cast-ing-rolling plants that Rizhao ordered from Primetals Technologies in 2013 and 2014. The other plants are either under construction or are currently being delivered. Primetals Technologies is responsible for engineering and the supply of mech anical equipment, media systems, technology packages and automation. All of the rolling stands will be equipped with Morgoil KLX oil film bearings that are specifically designed for Arvedi ESP applications. The project also includes a comprehensive training and support package.
In an Arvedi ESP line hot strip is continuously produced without inter-ruption in a directly linked continuous caster and rolling mill. Energy con-sumption is reduced by up to 45% compared to conventional plant con-figurations. With an overall length of just 180 meters, Arvedi ESP is also the most compact mill of its type in the world.
Metals Magazine 1/2015 | Cover Story
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Two of Siemens VAI’s lower-energy technologies, Finex and Arvedi ESP, were developed closely with steel companies. Do you envisage similar collaborations with other steelmakers? Yamasaki: Yes, if a steelmaker requests joint development of a technology, we are willing to embark on joint-venture projects. Finex and Arvedi ESP are examples where this has already happened successfully with both technologies now being sold to other steelmakers.
The exploitation of shale gas in the United States has resulted in a renaissance of DRI plants in the country. An example is the plant equipment supply for a 2-million-ton-per-year hot-briquetted DRI (HBI) plant by Primetals Technologies in Texas for the export of merchant HBI as a blast furnace feed. Do you see potential for more such projects that do not require the more stringent DRI qualities required for the EAF?Yamasaki: I do not expect shale gas to have a major influ-ence on steelmaking technologies in Europe. For the integrated mill, productivity can be increased by charging pre-reduced iron, which lowers CO2 emissions per ton of iron output. The DRI for this application does not require the low gangue ores needed for an EAF, as there are fewer regulations limiting the amount of slag formed. The plant now being supplied by Primetals Technologies in Texas makes use of the low-cost shale gas presently exploited in the U.S. and will produce hot-briquetted DRI (HBI) suitable for shipment to Europe or elsewhere as a blast furnace feed.
A number of thin-slab inline rolling processes are available to customers today. Is there a particular advantage in the Arvedi ESP process supplied by Primetals Technologies that will win new customers?Yamasaki: The Arvedi ESP process can readily produce thin hot band rolled to as little as 0.8 mm gauge and even thinner. This can replace cold-rolled and annealed material for these gauges at much lower processing costs.
Will metallurgical services continue to play a key role in the business activities of Primetals Technologies?Yamasaki: Customers increasingly want a complete life-cycle service, which we can provide. Outsourcing of such functions is now common in the United States and in Europe. On top of routine maintenance, Primetals Technologies can upgrade plant automation to maintain the plant working at optimum efficiency. This service is also offered for third-party equipment.
Where there are overlapping technologies between MHMM and Siemens VAI, such as in hot-strip mills and flue-gas cleaning, will new customers be given the choice of either technology?Yamasaki: There is little overlap in the portfolios of the two joint-venture companies. MHMM had, for example, no caster technology comparable to that of Siemens VAI. MHMM brings particular expertise in the hot-strip mill, such as the Pair Cross Mill stand for strip crown and flat-ness control, and the sizing press to minimize caster mold changes. The joint venture has enlarged the portfolio that can now be offered to customers.
The construction market accounts for 40% of all finished steel. Do you therefore see a need to increase develop-ment of plants to produce long products and plate?Yamasaki: We do offer many technologies for long prod-ucts, including head-hardened rails for railways, endless bar rolling mills as previously mentioned, beam mills and plate mills.
The company slogan is “Creating the future of metals as one.” Does this also mean increasing Primetals Technologies’ portfolio for nonferrous metals – alumi-num in particular? Yamasaki: Yes. Rolling mills for aluminum and copper foil are already part of the technologies offered and forecasts indicate an increasing demand for aluminum sheet for the automotive sector.
The plant now being built by Primetals Technologies in Texas makes use of the low-cost shale gas presently exploited in the U.S. and will produce hot-briquetted DRI (HBI) suitable for shipment to Europe or elsewhere as a blast furnace feed.”
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Operation of the Arvedi ESP line at Acciaieria Arvedi has fully met expectations and overall product quality is excellent.”Giovanni Arvedi, Acciaieria Arvedi S.p.A., Italy
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Metals Magazine 1/2015 | Technology | Linked Casting and Rolling
Metals Magazine 1/2015 | Technology | Linked Casting and Rolling
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THIN IS BEAUTIFUL – ARVEDI ESP PRODUCTS SUBSTITUTE A WIDE RANGE OF COLD-ROLLED PRODUCTS
Principal author: Andreas Jungbauer Paper number: 288
High-strength but lightweight car bodies, ultra-thin structures that possess the highest tensile strength, and lowest-possible production costs – innovative processes are required to meet the demands for automotive and other high-end steel applications. After years of successful operation in Italy, and with five additional lines ordered from China, today Arvedi ESP is accepted as a proven technology that provides innumerable rolling possibilities to meet the highest downstream requirements. The use of 0.8 mm-thin hot-rolled products as a cold-rolled substitute – either directly or by processing the hot-rolled coils in con-tinuous pickling and galvanizing lines – makes the cold-rolling process unnecessary for many applica-tions. Operational results of the new Arvedi ESP plants as well as possible configurations for Arvedi ESP and processing lines are described.
High-quality 0.8-mm-thick hot-rolled strip from an Arvedi ESP line
After years of successful operation in italy, and with five additional lines ordered from China, today Arvedi ESP is accepted as a proven technology that provides unlimited rolling possibilities to meet the highest down-stream requirements.
AHSS PRODUCTION WITH ARVEDI ESP: A NEW DOOR OF OPPORTUNITY OPENS
Principal author: Bernd Linzer Paper number: 290
Pipe grades, high-strength but lightweight automo-tive steels, ultra-thin rolled strip with the highest tensile strength – and all at the lowest production costs. A new process achieves these defined targets: Arvedi ESP, standing for endless strip production. With precise thermomechanical rolling and rigorous temperature guidance in the narrowest possible oper-ational windows, Arvedi ESP opens the door for the development of new and demanding steel grades in the shortest possible implementation time and with reduced alloying expenses. Low operational costs are also made possible by efficient induction heating and the resulting energy savings. The potential of producing advanced high-strength steel (AHSS) with Arvedi ESP is described in this paper, including results from the first industrial plant in operation since 2009 at Arvedi Steel, Italy, and from the five ESP plants recently purchased by the Chinese steel producer Rizhao Steel, which focuses on the highly valuable local and export markets for high-quality, thin-gauge strip products.
Metals Magazine 1/2015 | Technology | Linked Casting and Rolling
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With five Arvedi ESP lines, the Chinese steel producer Rizhao Steel is now focusing on the highly attractive local and export markets for high-quality, thin-gauge strip prod-ucts. The first line commenced operation in the spring of 2015. The new casting-rolling complex is designed for a total annual production capacity of 11 million tons of high- quality, ultra-thin, hot-rolled strip products with widths of up to 1,600 mm and thicknesses down to 0.8 mm. The energy consumption and related costs are reduced by up
to 45% compared with conventional casting and rolling processes. This also means a major reduction in CO2 emis-sions. During the project phase, plant personnel from China received extensive training at the licensor’s plant – Acciaieria Arvedi S.p.A. in Italy – to prepare them to deliver the best operational performance with the new state-of-the-art endless casting-rolling facility. The plant setup, the training and support program, as well as the latest results from the start-up are presented in this paper.
RIZHAO STEEL COUNTS ON ARVEDI ESP FOR HIGH-QUALITY HOT-STRIP PRODUCTION
Principal author: Andreas Jungbauer; Paper number: 281
The new casting-rolling complex is designed for a total annual production capacity of 11 million tons of high-quality, ultra-thin, hot-rolled strip products with widths of up to 1,600 mm and thicknesses down to 0.8 mm.
High-reduction stands and induction heater of the Arvedi ESP plant No. 1 for Rizhao Steel, China
