Jubilee weekend for Europe's biggest blast furnace
This weekend, Schwelgern blast furnace No. 2 in Duisburg/Germany is going to produce its 70 millionth t of hot metal. This record will be obtained within the first furnace campaign which started in autumn 1993.
Europe´s biggest blast furnace with a hearth diameter of 14.9 m has been supplying the two BOF melt shops Bruckhausen and Beeckerwerth for 19 years with an average hot metal amount of around 12000 t/d.
Featuring 42 tuyères and 4 tapholes BF 2 has been processing almost 19000 t of iron ore and up to 4000 t of coke. It has also been delivering high-value by-products, such as, around 3300 t of blast furnace slag/day as a basis for cement manufacture, and around 12 million m³ top gas per day for use in the mill's energy network.
Plants & Equipm.
Arashk Memarpour, Voicu Brabie, and Pär G. Jönsson:
Decarburization and clogging behaviour of yttria stabilized zirconia coatings applied to SEN´s Al2O3-C refractories by plasma PVD
Carbon oxidation is a main industrial problem for alumina-graphite refractory base materials used in commercial submerged entry nozzles (SEN) during preheating. Thus, the effects of plasma spray-PVD coating of yttria
Application
Chitaranjan Pany, Malli Krishnamoorthy Sundaresan, B. Nageswara Rao, Bhagavatheeswara Sivasubramonian, and N. Jayachandran Nair:
On the bursting of an HSLA steel rocket motor case during proof pressure testing
One of the high strength low alloy (HSLA) steel rocket motor cases bursted during proof pressure testing. Various empirical relations for the burst pressure are examined to identify a simple
Prod. & Quality
Rajeev Baskiyar, Roylen Topno, Arjun Prasad Singh, Ram Avtar, and Debasis Mukerjee:
Studies on aspects of mechanical property relations in QST rounds
What do laboratory tests reveal about tensile properties, chemical composition, microstructure and hardness, performed with as-rolled samples ofQST bars and rods? Will correlations of yield strength, ultimate tensile strength, and
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Prod. & Quality
Mamdouh Eissa, Hoda El-Faramawy and Mohamed Kamal:
Influence of calcium treatment on non-metallic inclusion morphology and mechanical properties of Pb-free resulphurized machinable steel
Resulphurized machinable steel is widely used as material for industrial machinery parts due to its better machinability compared to other categories of steels. The conventional resulphurized machinable steel contains lead
Automation
Erwin A. T. Wosch:
Modelling the thermal conditions in the continuous-casting secondary cooling zone by computer algebra
This investigation gives more insight into the fundamentals of slab and thin slab casters. How can slab surface temperature and the position of the liquid crater tip be approximated by
Surface techn.
Elsayed M. Elsayed, Atef Y. Shounoda, and Ahmed E. Saba:
A study on the electro-synthesis of zinc oxide films
Thin films of zinc oxide (ZnO) were grown by potentiostatic and galvanostatic cathodic deposition onto Cu, stainless steel, Ag and glassy carbon electrode (GCE) substrates from a simple aqueous zinc
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