Results 41 to 50 of about 2,438 (183)

Effect of Intrinsic Carbon in Hot Briquetted Iron on Melting and Refining Efficiency under Electric Arc Furnace Conditions for Sustainable Steelmaking with Active Use of H2‐Reduced Iron

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

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, Alvaro Rubio Ordoñez, Roberto Caballero Carlon, Björn Glaser   +3 more
wiley   +1 more source

Automated Machine Learning for Nitrogen Content Prediction in Steel Production: A Comprehensive Multi-Stage Process Analysis

Applied Sciences
Nitrogen control in steel production critically influences mechanical properties and product quality, yet traditional mechanistic models struggle to capture complex multivariable interactions across the complete steelmaking chain.
Jaroslav Demeter, Branislav Buľko, Peter Demeter, Martina Hrubovčáková, Slavomír Hubatka, Lukáš Fogaraš   +5 more
doaj   +1 more source

Hot Metal Temperature Forecasting at Steel Plant Using Multivariate Adaptive Regression Splines

Metals, 2019
Steelmaking has been experiencing continuous challenges and advances concerning process methods and control models. Integrated steelmaking begins with the hot metal, a crude liquid iron that is produced in the blast furnace (BF).
José Díaz, Francisco Javier Fernández, María Manuela Prieto   +2 more
doaj   +1 more source

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, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

Deoxidation in molten steel by liquefied petroleum gas

工程科学学报, 2015
Oxygen in molten steel was removed with liquefied petroleum gas in laboratory. The results show that it is feasible to use liquefied petroleum gas for deoxidation in molten steel to produce high-carbon and high-quality clean steel with VD vacuum smelting
WANG Hai-jun, WANG Jian-jun, MENG Yu-yong, CHANG Li-zhong, ZHOU Li   +4 more
doaj   +1 more source

Steelmaking. Recycle of Steelmaking Waste in Arc Furnace.

DENKI-SEIKO[ELECTRIC FURNACE STEEL], 1999
Minimization and utilization of wastes is one of the most important subject in manufacturing industries today. Daido Steel developed several technologies to utilize wastes so that the reusing and recycling ratio of steelmaking slag, used refractory, EAF dust and stainless steel dust becomes higher.
Masakazu Hayaishi, Norio Honjo, Masahide Tsuno, Motoshi Shinkai   +3 more
openaire   +2 more sources

Phenomenological Prediction of Defect Formation in Continuous Casting of Steel Utilizing Fundamental Modeling and Machine Learning

steel research international, EarlyView.
In this article, decision tree classifiers are developed to predict defects in continuous casting of steel utilizing caster data from SSAB Raahe Works (Finland). Phenomenological quality criteria extracted from applicable process measurements and results from solidification and heat transfer simulations are utilized in prediction.
Julius Norrena, Seppo Louhenkilpi, Ville‐Valtteri Visuri, Tuomas Alatarvas, Agne Bogdanoff, Timo Fabritius   +5 more
wiley   +1 more source

Evolution mechanisms of MgO-Al2O3 in non-oriented silicon steel

工程科学学报, 2015
The evolution mechanisms of MgO-Al2O3 in the process of calcium treatment in non-oriented silicon steel were studied by laboratory experiments, with focus on the evolution process in the early and middle of calcium treatment.
SUN Yan-hui, ZHAO Yong, CAI Kai-ke, SUN Sai-yang, MA Zhi-fei, FANG Zhong-qiang   +5 more
doaj   +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, Robert Musi, Martin Hafok, Christoph Turk, Gerald Schneeberger, Susanne Michelic   +5 more
wiley   +1 more source