Saarstahl AG

Völklingen, Germany

Saarstahl AG

Völklingen, Germany
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Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2007.1.2 | Award Amount: 5.71M | Year: 2007

The objective of SHAPE is to support the development and realization of enterprise systems based on a Semantically-enabled Heterogeneous Service Architecture (SHA). SHA extends service-oriented architecture (SOA) with semantics and heterogeneous infrastructures (Web services, agents, Semantic Web Services, P2P and grid) under a unified service-oriented approach.\nTo achieve this, SHAPE will develop a model-driven engineering (MDE) tool-supported methodology. SHAPE will take an active role in the standardisation of metamodels and languages for SHA. The technical results will be compliant with the proposed standards to ensure high industry acceptance.\nIn current SOA approaches, business requirements and technical details are intertwined constraining the evolution of service-oriented business solutions. SHAPE will provide appropriate metamodels and languages, methods and tools to separate the different viewpoints of SOA for the development of semantically-enabled, flexible and adaptive business services on a rich SHA infrastructure. SHAPE addresses the target outcomes of the objectives in ICT-2007.1.2.\nThe work in SHAPE will be organised in seven work packages: Industrial use cases, Model-driven methodology and architecture, Metamodels and languages, Modelling tools and services, Model transformations and deployment, Standardisation, dissemination and exploitation, and Project management.\nThe SHAPE consortium consists of six research and technology partners and two industrial users: SINTEF with expertise on MDE and software architectures, ESI with expertise on MDE, SAP with expertise on SOA technologies, SOFTEAM with expertise on MDE methods and tools, DERI with expertise on Semantic Web Services, DFKI with expertise on enterprise modelling and agent technologies, and Statoil and Saarstahl providing industrial requirements and case studies for validation of SHA.\nSHAPE will run for 30 months, has a total budget of 5,7 M with a requested EC contribution of 3,9 M.

Wu L.,KTH Royal Institute of Technology | Valentin P.,Saarstahl AG | Sichen D.,KTH Royal Institute of Technology
Steel Research International | Year: 2010

Two cold models were employed to simulate the formation of open-eyes in a gas stirred ladle. In the first model, water and silicon oils were employed to simulate liquid steel and slag respectively. In the second one, liquid Ga-In-Sn alloy was used to simulate liquid steel, while 12% hydrochloric acid simulated the top slag. The experimental results indicated that the gas flow rate, height of the lower liquid and height of the top liquid had a strong impact on the open-eye size. On the other hand, the viscosity of the top liquid and the interfacial tension between the two liquids had only little effect on the open-eye size. A semi-empirical model was developed to describe the size of open-eye as a function of the heights of the two liquids and the gas flow rate. The two sets of parameters obtained for the water and Ga-In-Sn models were very different. Industrial trials were also conducted to examine the applicability of the models. The model developed based on the Ga-In-Sn model could well predict the formation of an open-eye during ladle treatment. The model could be adopted by the industry to estimate the real gas flow rate by measuring the size of the open-eye online. On the other hand, the mathematical model based on water model experiments was unsatisfactory when applied to the industrial ladle process. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Harste K.,Saarstahl AG | Lungen H.B.,Stohlinstitut VDEh
Stahl und Eisen | Year: 2011

The material steel is the basis for a sustainable production in other branches. The German steel industry is the starting point for many industrial value added chains, like for example electrical engineering, steel construction, building industry, mechanical engineering, automotive industry as well as steel processing and metal goods. Through its manifold material properties steel is the solution for the customers of the steel industry to reduce CO2 emissions and to contribute to climate protection. The steel industry in Germany is one of the most modern in the world. But the production of steel inevitably leads to CO2 emissions. The current plans for the Commission trading in Europe for the period from 2013 on, the increasing costs of the financial support of renewable energies and the planned decreasing of the energy tax relief burden especially the German steel industry and impair its competition in the international business. In the course of this there exist important arguments for a steel production in Germany. As a consequence the question arises Quo vadis steel industry -what road does it take?

Krumeich J.,German Research Center for Artificial Intelligence | Jacobi S.,Saarstahl AG | Werth D.,German Research Center for Artificial Intelligence | Loos P.,German Research Center for Artificial Intelligence
Lecture Notes in Business Information Processing | Year: 2014

To keep up with increasing market demands in global competition, companies are forced to dynamically adapt each of their business process executions to currently present business situations. Companies that are able to analyze the current state of their processes, forecast its most optimal progress and proactively control them based on reliable predictions, are a decisive step ahead competitors. The paper at hand exploits potentials of predictive analytics on big data aiming at event-based forecasts and proactive control of business processes. In doing so, the paper outlines-based on a case study of a steel producing company-which production-related data is currently collected forming a potential foundation for accurate forecasts. However, without dedicated methods of big data analytics, the sample company cannot utilize the potential of already available data for a proactive process control. Hence, the article forms a working and discussion basis for further research on big data analytics. © Springer International Publishing Switzerland 2014.

Hahn C.,German Research Center for Artificial Intelligence | Jacobi S.,Saarstahl AG | Raber D.,German Research Center for Artificial Intelligence
Proceedings - 2010 IEEE/WIC/ACM International Conference on Intelligent Agent Technology, IAT 2010 | Year: 2010

Service-orientation has become the leading paradigm for modern IT system design and development as service-oriented system design has great potential for improving the efficiency and quality of the IT systems. This paper presents a model-driven approach for the generic integration of service-oriented architectures (SOA) and multi-agent systems (MAS). In fact, a model transformation from SoaML - a meta-model for SOA - to PIM4AGENTS - a platform independent metamodel for MAS - is utilized for integration. The relevance of this approach is proven by applying it to a real-world industry scenario. © 2010 IEEE.

Jacobi S.,Saarstahl AG | Hahn C.,German Research Center for Artificial Intelligence | Raber D.,German Research Center for Artificial Intelligence
Proceedings - 2010 IEEE/WIC/ACM International Conference on Intelligent Agent Technology, IAT 2010 | Year: 2010

In the course of globalization competitive pressure is rising in most industrial sectors. High quality products are basic prerequisites for companies of high wage countries to be present on the global market. Improved adherence to delivery date, increased flexibility despite to decreased production costs are some examples of the challenges to be managed just to keep current positions. In general, these requirements are mostly requirements on the processes-not on the actual products. Economic efficiency is not any longer just a property of products and quality, but more and more a property of processes. Thus, process capability is getting more important beside production capability. This paper shows how service-oriented architectures (SOA) and multi-agent systems (MAS) can be integrated using a model-driven approach. In fact, a model transformation from SoaML - a metamodel for SOA - to DSML4MAS - a domain-specific modeling language for MAS - is utilized for the integration. The relevance of this approach is proven by applying it to a real-world industry scenario. This includes modeling a segment of a production chain of Saarstahl AG - a global respected steel manufacturer. The presented approach helps to increase flexibility of mid and short term planning and scheduling along the chosen segment and thus improve processes. © 2010 IEEE.

St. Ingbert D.,Saarstahl AG
MPT Metallurgical Plant and Technology International | Year: 2014

German wire producer, Drahtwerk St. Ingbert GmbH (DWI) has constructed a new surface treatment line for the pickiling and coating of wire. The new line allows coating of higher quality and with greater homogeneity. Combined with bell-type annealing, in which wire coils are heat treated in a defined process in order to achieve particular material properties. The investment amounts to 13.5 million Euros.

Krishnapisharody K.,McMaster University | Krishnapisharody K.,Saarstahl AG | Irons G.A.,McMaster University
Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science | Year: 2013

The modeling of gas-liquid plumes in steelmaking ladles has been the subject of many investigations. In most studies, the "modified" Froude number, based on the momentum of the injected gas, has been employed to characterize two-phase plumes. This approach has several shortcomings and is critically reviewed in the present work. Based on an extensive review of previous work and theoretical considerations, it is demonstrated that the injected momentum and consequently, the modified Froude number has no significance to gas blowing operations in Ladle Metallurgy. Instead, an approach based on the "plume" Froude number, derived from the buoyancy of the plume, is shown to be more useful in modeling the plume as well as ladle hydrodynamics. The dissipation behavior of the gas momentum in the vicinity of the injector is further clarified. © 2013 The Minerals, Metals & Materials Society and ASM International.

Krishnapisharody K.,Saarstahl AG | Irons G.A.,McMaster University
Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science | Year: 2014

During inert gas stirring in steel ladles, the overlying slag is pushed to the side by the rising gas-metal plume, resulting in an open eye of exposed steel. The present work is devoted to the modeling of ladle eyes in a bath covered with a thick slag layer, where the eyes formed are often smaller than the cross-section of the gas-metal plume. A mathematical model is developed from fundamental fluid flow considerations by extending a previous mechanistic-based approach for modeling eye formation under thin slag layers. The present model for the eye size correlates a dimensionless eye area to the density ratio of the liquids and an appropriate Froude number, expressed in the primary operating variables. The model is consistent with the experimental results in different gas/liquid/liquid systems. Further, a criterion is deduced for soft bubbling of Argon in the ladle without exposing the metal to the atmosphere. Finally, recommendations concerning the proper application of the thin and thick slag models are made. © 2014, The Minerals, Metals & Materials Society and ASM International.

Trojahn W.,Schaeffler Group | Valentin P.,Saarstahl AG
Materials Science and Technology | Year: 2012

For pricing reasons the extent of metallurgical treatment often is questioned about its influence on bearing performance. In this paper steels with three different quality levels are compared with regards to cleanliness and fatigue resistance. © 2012 Institute of Materials, Minerals and Mining.

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