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The article explores the use of digital solutions to enhance energy efficiency in a steel rolling mill by optimizing operational parameters of the reheating furnace. Through the application of Six Sigma methodology and tools like Viridis Performance, the study aims to decrease electrical energy consumption without increasing fuel usage. Findings suggest that adjusting the furnace discharge temperature could potentially reduce electrical consumption by 2%. The research delves into various studies on hot rolling processes in steel mills, covering topics such as CO2-neutral heat generation, electricity consumption forecasting, process control, production process optimization, vibration analysis, sustainable scheduling, and statistical data analysis. Presented at AISTech 2024, an iron and steel technology conference in the USA, the research offers insights into technical approaches and methodologies for enhancing efficiency and sustainability in the steel industry. [Extracted from the article]

The document provides information about upcoming training seminars and conferences organized by the Association for Iron & Steel Technology (AIST). These events cover a range of topics related to the iron and steel industry, including the production and use of direct reduced iron, digital transformation in the industry, maintenance and design of refractory systems, and the steelmaking process. The document includes details about the programs, sessions, registration, accommodations, and organizers for each event. [Extracted from the article]

This article discusses the improvements made in the process practices of steel production to reduce the occurrence of slivers in ultralow-carbon automotive exposed application grades at Ternium Brasil. The focus is on mitigating the formation and entrapment of non-metallic inclusions, which can cause cosmetic surface imperfections and formability problems. The article evaluates the various stages of steel production, from converter to continuous casting, and discusses the operational practices implemented to enhance the cleanliness of the steel and reduce the presence of non-metallic inclusions. These improvements have resulted in a significant decrease in defects, from 5% in 2022 to 0.2% in 2023. [Extracted from the article]

The article focuses on AIST's upcoming educational events and seminars scheduled from September to November 2024, covering various topics such as maintenance solutions, cold rolling fundamentals, and digital transformation in the steel industry.

The transition from integrated steelmaking, the blast furnace (BF)-basic oxygen furnace flowsheet, to alternative flowsheets with lower greenhouse gas emissions is a growing trend for the decarbonization of the iron and steel industry. One such flowsheet is the direct reduced iron (DRI)-electric arc furnace (EAF) route. However, the DRI-EAF route is inefficient when using lower-grade, higher-gangue iron ores traditionally processed in the BF, which is the majority of iron ore supply in the world. The ability to effectively process BF-grade iron ore with a low-emission flowsheet is critical to the decarbonization of the steel industry globally. This study proposes the use of electric smelting furnace to improve the overall process yield and efficiency when using BF-grade iron ore and compares it to the established DRI-EAF process. [ABSTRACT FROM AUTHOR]

The article offers information on the transformation of the North American steel industry from a period of uncertainty in the late 1990s and early 2000s to a position of strength today. Topics include the challenges faced by the industry due to surging imports and outdated equipment, the industry's recovery driven by technology advancements and investments, and the significant capital investments being made to enhance efficiency, autonomy, and market competitiveness.

The article highlights the AIST Long Products Technology Committee's recent international study tour in Germany, offering insights into visits to Saarstahl AG's facilities, Badische Stahlwerke GmbH, and Stahlwerk Thüringen GmbH. The topics covered include diverse steel production processes, equipment advancements, and the exploration of historical and modern steelmaking sites.

The article discusses the deployment of a digital twin for a continuous casting machine at the integrated steel plant Ternium Brasil. Topics discussed include the use of artificial intelligence (AI) for smart maintenance, steps for implementing a digital twin including assessment, solution design and deployment, and the workflow in the monitoring stage.

The article focuses on the 2024 AIST Basic Oxygen Furnace Roundup, presenting data from the third quarter of 2023 supplied by the AIST Oxygen Steelmaking Technology Committee for reference.

The article focuses on the Austrian legend of the Wasserman in Eisenerz and recounts how the townspeople captured him, leading to the discovery of a significant iron deposit in the Erzberg mountain. Topics include the Wasserman's offer of gold, silver, or iron in exchange for his release, the choice of iron by the locals, and the subsequent transformation of Erzberg into a major open-pit mining operation.

Continuous improvement and optimization of converter process automation is essential to cope with basic oxygen furnace and argon oxygen decarburizer operator demands such as highest process accuracy, stability and evenly flexibility, short ramp-up, and lowest consumption figures. Primetals Technologies is constantly extending its principal equationbased process models and in parallel introducing data and rule-based functions leading to hybrid simulation tools for process control and optimization. Such data-driven functions require a high-quality and complete set of input data which are achieved through reliable measurement and data selection. Latest developments and references in this regard are presented. [ABSTRACT FROM AUTHOR]

The article announces several appointments and roles of the AIST (Association for Iron & Steel Technology) Leadership in the AIST Foundation, including the election of Geoffrey Brooks as the Chair, Britt MacKinnon as the Vice Chair, and Len Woods as the Secretary-Treasurer.

The article discusses the challenges associated with the presence of MgS(MnS) inclusion stringers in high-Artificial intelligence (AI) advanced high-strength steel (AHSS) and their potential impact on mechanical properties. Topics include the formation of MgS stringers around Aluminum Nitride particles, the equilibrium of Aluminum-Magnesium-Oxygen, Aluminum-Nitrogen-Oxygen, Calcium-Magnesium-Manganese-Sulfur systems in the steelmaking process, and the role of nitrogen pickup in high-Al AHSS.

Maintaining the tundish superheat in a certain temperature range is essential for the stability of the continuous casting process, quality of the cast product and the caster productivity. The final adjustment of the steel temperature in the ladle at the last station of the secondary refinement process is therefore key for adjusting the tundish superheat. In the present work, the temperature loss was modeled based on secondary refinement parameters, ladle condition and casting parameters using various machine-learning techniques. Moreover, the model was integrated as a real-time calculation in the level 2 on-line process control system. [ABSTRACT FROM AUTHOR]

Resin-bonded unfired bricks, such as magnesia carbon, are the most popular refractory products for the steelmaking industry. Novolac-type phenolic resin is the bonding agent for such unfired bricks for most refractory producers, thanks to its ease of use and less hazardous nature than ordinary bonding agent, pitch. Although resin-bonded bricks are cured at over 200°C during manufacturing, the remaining resin components emit odor and hazardous gases during use. To remove such unfavorable components and create a better workplace environment, new phenolfree bonded bricks are studied and tested. [ABSTRACT FROM AUTHOR]

The article analyzes dependency of input scrap quantity on energy consumption and greenhouse gas emissions by using a mass and energy balance that has been validated against plant data. It uses the static mass and energy balance to quantify heat available for scrap melting during the basic oxygen furnace (BOF) process. It is evident that higher scrap pre-heating temperature facilitates an increased scrap quantity to be fed into BOF converter.

In basic oxygen furnace (BOF) steelmaking, it is very important to understand the dissolution mechanism of magnesia-based flux to improve the productivity of BOF vessels by increasing the refractory lining life and reducing the downtime of vessels. In the present study, a mixed-control kinetic model for calcined dolomite dissolution and is presented considering the formation of dicalcium silicate (2CaO.SiO2 = C2S) solid solution on unreacted CaO and magnesiowüstite (MgO.FeO = MF') solid solution around the unreacted MgO interface. A general mixed-control kinetic model has been proposed to estimate the dissolution rates of calcined dolomite flux under different BOF slag compositions. The present model predictions are validated with plant operating data available in the literature as well as from Visakhapatnam Steel Plant, which shows encouraging results in predicting magnesia-based flux dissolution in BOF steelmaking-type slag. [ABSTRACT FROM AUTHOR]

The article offers information on the European Commission's approval of Germany's EUR1.3 billion financial aid package to ArcelorMittal for decarbonization efforts.

The article reports that the Canadian steelmaker Algoma Steel Inc. announced to undergo a transformation from furnace-basic oxygen furnace route to one that utilizes two state-of-the-art electric arc furnaces including examines EAFs are expected to lower the plant's carbon dioxide emissions.