Results 81 to 90 of about 22,963 (264)
steel research international, EarlyView.The melting behavior of hot briquetted iron (HBI) is observed and compared with FactSage computing simulation. When using HBI in an electric arc furnace process, a proper design of intrinsic carbon content in HBI, charging ratio of HBI, and addition of lime are proposed to be essential to control the slag volume, maintain slag basicity, and mitigate ...
Min Joo Lee, Joo Hyun Park
wiley +1 more source
AISI Direct Steelmaking Program [PDF]
, 1991 Pilot plant trials with the horizontal vessel were completed. Design of a third pressurized vessel and an offgas cleaning and tempering system was completed. Installation is now underway. A basic study and a pre-engineering design of a 350,000-metric ton/y demonstration plant were completed, and efforts are underway to develop such a demonstration ...
openaire +4 more sources
Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings
steel research international, EarlyView.This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström +3 more
wiley +1 more source
Dissolution Rate of Various Limes into Steelmaking Slag
High Temperature Materials and Processes, 2013 In the steelmaking process, various solid oxides such as lime and dolomite are used as flux. It is well known that the dissolution rate of these oxides into the molten slag has an important role to increase the reaction rate between the steel and slag ...
Maruoka Nobuhiro +3 more
doaj +1 more source
Phoenix-Lance steelmaking [PDF]
JOM, 1959 Here is an interesting new steelmaking technique being developed in Germany for the production of open-hearth quality steels from high-phosphorus pig irons. It utilizes the classical basic-bessemer converter with top-blown oxygen, and has the advantages of early phosphorus removal and, consequently, less nitrogen pick-up in the final steel.
openaire +1 more source
The emergence of the 'coastal steelworks' in the European Coal and Steel Community (ECSC), 1952-1967. [PDF]
The coal and steel production was key in the post-war rebuilding of the European economy. However, after WWII, Germany still had the technological knowledge and experience to quickly regain its pre-war position as the dominant economic force in Europe ...
Poelmans, Eline
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Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage
steel research international, EarlyView.This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia +5 more
wiley +1 more source
Foaming is of great practical and theoretical significance for volcanic processes on the earth, the moon, and perhaps the meteorite parent bodies. The theory of foams agrees with steelmaking experience to indicate that their presence depends on the ...
Okeefe, J. A., Walton, W.
core +1 more source
Investigation of Microscopic Nonmetallic Inclusions in Powder Metallurgical High‐Speed Steels
steel research international, EarlyView.Methods for inclusion analysis are evaluated for suitability. Various powder metallurgical steels in different processing states are characterized. SEM/EDS data are further analyzed using analytical and statistical approaches. A thermodynamic method for determining inclusion phase composition is tested.
Manuel Schickbichler +5 more
wiley +1 more source
An Empirical Analysis of the External Finance Premium of Public Non-Financial Corporations in Brazil [PDF]
Our objective in this paper is to analyze empirically the relationship between the external finance premium of non-financial corporations in Brazil with their default probability and with their demand for inventories.
Alberto Ronchi Neto +1 more
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