Conveners
Mold Technology & Nozzle Performance
- Riccardo Carli (Prosimet SpA)
Mold Technology & Nozzle Performance
- There are no conveners in this block
Description
2.3.2
In the continuous casting, mold powder is added to the molten steel meniscus, where it forms a liquid slag that also contains a carbon-enriched layer. This phenomenon occurs even in ultra-low carbon steels, where small amounts of carbon are used to control the melting behavior of the mold powder. During the process, the liquid steel may come in contact with this layer leading to steel...
In continuous steel casting, the turbulent liquid steel flow in the mold has a significant influence on the produced steel quality. The varying process parameters casting speed and inert gas injection at the stopper rod tip influence the mold flow pattern. Most investigations consider the original geometry of the submerged entry nozzle. During the casting process, material deposition and...
This study addresses the issue of nozzle clogging failure in the continuous casting of Super304H stainless steel, investigating the impact of inclusions on nozzle clogging formation through experimental and thermodynamic calculations. Initially, the clogged nozzles were systematically examined, followed by the study of the evolution of steel melt inclusions at different stages of the smelting...
Thin slab casting is a well established technology in modern steel making, offering significant advantages in terms of efficiency, cost-effectiveness, and environmental sustainability compared to standard slab casting. As the industry trends towards even higher productivity, a new type of casting machine operating at medium thick moulds seem to be the emerging trend. One key factor...
Arcelormittal Industeel Belgium is steel plant producing carbon, low alloy, stainless steels and nickel based alloys through a single strand continuous caster, in combination with a plate mill.
Following a trial with FBG fibers horizontally installed in the broad face plates that took place in 2024, Industeel has decided to convert their slab caster to the latest technology of EBDS...
Fluorine has been widely used in continuous casting mold fluxes due to its ability to reduce surface tension, lower viscosity, and decrease melting temperatures. However, its dissolution in secondary cooling water leads to hydrofluoric acid formation, posing significant environmental and safety hazards. As a result, research has focused on alternative fluxing agents, with borate compounds...
One of the typical quality problems of near-net-shape products such as the beam blank is the appearance of surface and sub-surface cracks. The complex shape of the mould makes the casting of crack sensitive grades particularly challenging. This paper describes the process of modifying an existing beam blank section to improve its quality performance. It starts with the analysis carried out to...
This paper is part of the work on the EU funded RFCS project SHELL-CRACK that seeks to improve the as-cast slab quality of the shell in continuously cast semis through innovative strategies to control crack formation and microstructure evolution. Cracking initiation and propagation mechanism is a very complex phenomenon and depends on many factors, such as microstructure, cooling rate, cooling...
Steel manufacturers are increasingly challenged to deliver high product quality while simultaneously lowering operational costs to remain competitive. One key metric in evaluating performance is the cost per ton of steel produced.
This work aims to develop a mould plate design that provides measurable advantages in terms of cost per ton, without compromising on heat conditions, quality or...
The implementation of the optical fibers revolutionized mold monitoring and provides signals with previously unattained resolution and quality. The biggest challenge with this technology is to connect fiber optics in harsh environments because dust and dirt can easily block the optical connector and cause signal loss. The newly upgraded HD moldFO+ brings with it important progress, including a...