ISSN 2594-5297
40º Simpósio de Laminação — Vol. 40, Num. 40 (2003)
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Abstract
Continually increasing demands on product quality and low-cost production force hot strip producers to permanently seek for equipment improvements and more efficient rolling operations. General remarks and aspects on targets, conversion-costs, quality-costs. Project planning and "hidden" potentials are explained. Three examples show the different approaches and philosophies of mill modernization. Two target groups are the motivator for modernization projects: *Decrease of conversion-costs *Adaptation of the hot rolled products to market requirements A detailed knowledge of the mill condition. the hot strip quality produced and the connection to costs lead to different measures. Often de-bottlenecking studies are the way to find the right measures to increase productivity. Additional benchmarks for decision-making are the return of investment and the paybadk period. Today more and more modernization measures target to increase profitability of a mill instead of more quality-oriented measures observed about 10 years ago. For special measures, which require a major shutdown it is useful to cooperate with an external partner such as mill builders who brings expertise for the technical solution, the evaluation of the investment costs, the planning of the revamp and shutdown. Moreover a external supplier shares the risk with the steel compa
Continually increasing demands on product quality and low-cost production force hot strip producers to permanently seek for equipment improvements and more efficient rolling operations. General remarks and aspects on targets, conversion-costs, quality-costs. Project planning and "hidden" potentials are explained. Three examples show the different approaches and philosophies of mill modernization. Two target groups are the motivator for modernization projects: *Decrease of conversion-costs *Adaptation of the hot rolled products to market requirements A detailed knowledge of the mill condition. the hot strip quality produced and the connection to costs lead to different measures. Often de-bottlenecking studies are the way to find the right measures to increase productivity. Additional benchmarks for decision-making are the return of investment and the paybadk period. Today more and more modernization measures target to increase profitability of a mill instead of more quality-oriented measures observed about 10 years ago. For special measures, which require a major shutdown it is useful to cooperate with an external partner such as mill builders who brings expertise for the technical solution, the evaluation of the investment costs, the planning of the revamp and shutdown. Moreover a external supplier shares the risk with the steel compa
Keywords
hot strip mill; modernization; conversion cost; productivity; flat products
hot strip mill; modernization; conversion cost; productivity; flat products
How to cite
Maierl, Josef; Djumlija, Gerlinde.
Trends in the Modernization of Conventional Hot-Strip Mills,
p. 691-700.
In: 40º Simpósio de Laminação,
Vitória - ES, Brasil,
2003.
ISSN: 2594-5297, DOI 10.5151/2594-5297-LA3403-11851
