Community Research and Development Information Service - CORDIS

Abstract

Final report of Contract No. 7210-EA/329, 147, 148; 1 July 1995 to 30 June 1999

The scope of this research covers the understanding of the lubrication phenomena when rolling tinplate and reducing the sensitivity to disturbances as well as maintenance filtering of oils and cooling lubricants. It is mainly focused on the cold-rolling of tinplates where quite different trends are observed between tandem rolling (first reduction) and rolling after annealing (double reduction), both processes being very sensitive to lubrication and to complex phenomena occurring in the roll gap (physico-chemistry, plate-out, thermal effects, evolution of strip surface). Mechanical, physical and chemical critical parameters such as rolling speed, work roll diameter, entry/exit tension, incoming strip temperature, annealing process (batch/continuous), choice of oil/additive and technological devices of emulsion-making effects have been studied to provide a better understanding and optimisation of mechanisms at stake.

Direct operational and industrial transpositions at the Sollac Florange and Rasselstein plants of most experimental and theoretical results allow improvement of the stability and reliability of the double-reduction cold rolling process of tinplate (especially in the case of very low thickness), in terms of an effective constancy of the products (thickness, surface aspect) as well as an increase of productivity (higher speed, fewer strip breakages).

Two original concepts have been developed: a concept of a normalised forward slip for off- or online detection and control of abnormal lubrication conditions in the roll gap, and a concept for improved use and care of cooling lubricants to reduce oil and treatment costs. osts.

Additional information

Authors: FOURATIER A, IRSID, Maizièrez-les-Metz (FR);GEISSLER F, RHG, Neuwied (DE);ENDEMANN G, BFI, Düsseldorf (DE);SCHMIDT B, BFI, Düsseldorf (DE)
Bibliographic Reference: EUR 20092 EN (2002), pp.193. Euro: 29:50
Availability: EUR-OP reference: KI-NA-20092-EN-S. Available from EUR-OP sales agents. URL: http://eur-op.eu
ISBN: ISBN: 92-828-5191-5
Record Number: 200214464 / Last updated on: 2002-03-19
Category: PUBLICATION
Original language: en
Available languages: en