Analysis of chattering phenomenon in industrial S6-high rolling mill

• Autorzy: Valigi M. C. , Papini S.
• Języki publikacji: EN

Abstrakty

EN

Chatter in rolling mills is the undesirable vibration observed in most of the rolling mills operating at high speed and rolling thin strip. In this work the authors discuss some problems relative to the vibrations occurring in a S6-high cold rolling mill. It can result in not good surface finish for some applications and, rare cases, in gauge variations in the rolled strip and it is considered to be the result of interaction between rolling mill structure and rolling-process. Three basic types of chatter can be classified in rolling mills: torsional, third-octave mode, and fifth-octave-mode chatter. S6-high rolling mill is an innovative mode to work the steel: it allows the use of very small work rolls laterally guided by individually adjustable side support rolls, which are supported by two rows of roller bearings mounted in cassettes. It has six rolls able to roll steel strip coming directly from hot rolling mill train. A proposed solution based on empirical observations, vibration analysis and considerations of a model is described with the aim to improve the quality of the product and increasing production.

Słowa kluczowe

EN

chatter; vibration analysis; S6-high rolling mill

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2013
• Tom: Vol. 14, No. 3
• Strony: 3--8
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Valigi M. C.

• Department of Industrial Engineering, University of Perugia, Italy

autor

Papini S.

• Department of Industrial Engineering, University of Florence, Italy

Bibliografia

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