Title

MELHORIA DA QUALIDADE DAS DIMENSÕES DAS CHAPAS PARA LATAS DOS LTF 1 E 2 DA CSN USANDO VIBRAÇÃO E PLANEJAMENTO DE EXPERIMENTOS – CHATTER

IMPROVING THE QUALITY DIMENSIONS OF THE CAN STRIPS TCM 1 AND 2 CSN USING VIBRACIONAIS AND DESIGNS OF EXPERIMENTOS - CHATTER.

Authorship

Gomes, Ulisses Rocha; Paulino, Wilson de Sousa; Neto, Pedro Corrêa do Amaral; Aquino, Ricardo Perroni; Gomes, Gustavo Leopoldo; Neves, Aloísio Dias; Fernandes, João Carlos; Silva, Francisco Herilton da; Oliveira, Flávio Geraldo de

Gomes, Ulisses Rocha

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Paulino, Wilson de Sousa

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Neto, Pedro Corrêa do Amaral

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Aquino, Ricardo Perroni

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Gomes, Gustavo Leopoldo

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Neves, Aloísio Dias

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Fernandes, João Carlos

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Silva, Francisco Herilton da

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Oliveira, Flávio Geraldo de

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DOI

10.5151/2594-5327-0169

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Abstract

No presente trabalho avaliou-se o comportamento dinâmico dos laminadores de tiras a Frio (1 e 2) da CSN. A fabricação de aços finos para atender a demanda da indústria alimentícia é extremamente exigente nas dimensões e propriedades mecânicas. A laminação é sensível às condições operacionais, portanto a instabilidade pode causar descontrole na espessura, gerando perda de produto. As metodologias adotadas foram: implantação de monitoramento de vibração (SKF MasCon

In the present study were evaluated the dynamic behavior of the temper cold mills (TCM1 and TCM2) of CSN. The manufacture of thin steel to meet the demand of food industry is very demanding on the dimensions and mechanical properties. The process of mill is sensitive to the practiced parameters, so the instability can cause disanag of the thickness, causing loss of product. The methodologies adopted were: implementation of a monitoring of vibration, research through peripheral equipment vibration and statistical analysis using designs of experiments (DOE). The results showed that the TCM1 is excited in the chatter of this event is self-excited. the run up test characterized this criticism speeds. The DOE showed the relevant parameters of the process. The TCM2 analysis showed chatter of 5 . The test run up showed that the excitation of low frequency is from the drive. The DOE TCM2 showed that gaps are increased by the speed. It is concluded that online monitoring that interacted with the parameters through mathematical models defined by the DOE guarantee the stability of TCM and removing the phenomenon of chatter.

Keywords

Aços; Chatter; Vibração; Planejamento de experimento; DOE.

Steel; Chatter; Vibration; Designs of experiments; DOE.