Título

ARVEDI ESP (ENDLESS STRIP PRODUCTION) FIRST THIN SLAB ENDLESS CASTING AND ROLLING RESULTS

ARVEDI ESP (ENDLESS STRIP PRODUCTION) FIRST THIN SLAB ENDLESS CASTING AND ROLLING RESULTS

Autoria

Arvedi, G.; Mazzolari, F.; Siegl, J.; Jungbauer, A.

DOI

10.5151/2594-5297-17542

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Resumo

The Italian steel producer Acciaieria Arvedi SpA operates a mini-mill for flat rolled products with a single casting line (max. width 1300 mm) at its mini-mill in Cremona, Italy with an annual output of 1.3 mtpy of flat products using ISP (In-line Strip Production) technology, patented by Arvedi. Following this positive experience with its continuous thin slab casting and rolling process, improved in several stages over the years and resulting in a stable production unit of high quality hot rolled strip, it was decided to invest in a new line adopting ESP (Endless Strip Production) technology, also patented by Arvedi, a direct evolution of ISP. Due to its highly compact lay-out with a total length of 190 m, lower investment costs are incurred for an Arvedi ESP line compared with conventional thin slab casting and direct rolling plants. Production costs will also be noticeably lower than those of other thin slab plants and also of the ISP plant already operating in Cremona. Productivity of the ESP plant, based on a single casting line, will be about 2 mtpy for the first phase and a possible increase in mass flow from the caster may take capacity up to 3 mtpy. Total energy and water consumption of the Arvedi ESP process is very low compared with that of a conventional casting and rolling process: depending on the final product energy consumption will be 50-70% lower and water consumption 60- 80% lower. Due to endless rolling operations, the production of strip with uniform and repeatable mechanical properties will be possible along the entire strip width and length and with the line's ability to produce ultra-thin hot rolled strip gauges of 0.8 mm (and lower), a subsequent cold rolling process will no longer be necessary for many strip applications. The Arvedi ESP plant is the first example of fully continuous production from liquid steel to hot rolled coil on the downcoiler in seven minutes and the Cremona plant will be the reference plant (master plant) for sales of future ESP lines. The aim of this presentation is to provide data relative to the new plant, commissioning and the first production results of the endless casting and rolling line. A contract was signed in 2006 with Siemens VAI as principal process and plant supplier of the new plant and construction is now completed in Cremona. Start-up is under way and will be concluded within the first half of 2009.

 

The Italian steel producer Acciaieria Arvedi SpA operates a mini-mill for flat rolled products with a single casting line (max. width 1300 mm) at its mini-mill in Cremona, Italy with an annual output of 1.3 mtpy of flat products using ISP (In-line Strip Production) technology, patented by Arvedi. Following this positive experience with its continuous thin slab casting and rolling process, improved in several stages over the years and resulting in a stable production unit of high quality hot rolled strip, it was decided to invest in a new line adopting ESP (Endless Strip Production) technology, also patented by Arvedi, a direct evolution of ISP. Due to its highly compact lay-out with a total length of 190 m, lower investment costs are incurred for an Arvedi ESP line compared with conventional thin slab casting and direct rolling plants. Production costs will also be noticeably lower than those of other thin slab plants and also of the ISP plant already operating in Cremona. Productivity of the ESP plant, based on a single casting line, will be about 2 mtpy for the first phase and a possible increase in mass flow from the caster may take capacity up to 3 mtpy. Total energy and water consumption of the Arvedi ESP process is very low compared with that of a conventional casting and rolling process: depending on the final product energy consumption will be 50-70% lower and water consumption 60- 80% lower. Due to endless rolling operations, the production of strip with uniform and repeatable mechanical properties will be possible along the entire strip width and length and with the line's ability to produce ultra-thin hot rolled strip gauges of 0.8 mm (and lower), a subsequent cold rolling process will no longer be necessary for many strip applications. The Arvedi ESP plant is the first example of fully continuous production from liquid steel to hot rolled coil on the downcoiler in seven minutes and the Cremona plant will be the reference plant (master plant) for sales of future ESP lines. The aim of this presentation is to provide data relative to the new plant, commissioning and the first production results of the endless casting and rolling line. A contract was signed in 2006 with Siemens VAI as principal process and plant supplier of the new plant and construction is now completed in Cremona. Start-up is under way and will be concluded within the first half of 2009.

Palavras-chave

Arvedi, ISP, ESP, Endless

Arvedi, ISP, ESP, Endless