Environmental improvements by using a water-based synthetic lubricant in Al-strip rolling

• Autorzy: Tahir M. , Stahlberg U.
• Konferencja: Second International Tribology Conference
• Języki publikacji: EN

Abstrakty

EN

The paper is focused on the influence of different types of lubricants in cold flat rolling of an Al-alloy. A water-based synthetic lubricant, least detrimental from environmental point of view, is compared with a conventional mineral-based oil and an oil-in-water emulsion. As a reference no lubricant was utilised. Mean friction coefficients are evaluated from forward slip measurements utilising the Slab method and FEM. For analysing the bearing capacity of the lubricants, the experiments were carried out for different single pass reductions. The lowest values of the friction coefficient were obtained for the emulsion and the highest for the synthetic lubricant. The strip surfaces roughness was investigated before and after rolling. The best bearing capacity, i.e. the smallest increase in friction with reduction, and the lowest surface roughness was found for the synthetic "environmental friendly" lubricant.

Słowa kluczowe

EN

environment; cold rolling; lubricants; friction; surface roughness; aluminium strip

PL

tarcie; walcowanie na zimno; smar

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2002
• Tom: Vol. 7, Spec. is
• Strony: 197--202
• Opis fizyczny: Bibliogr. 8 poz., tab., wykr.

Twórcy

autor

Tahir M.

• Division of Materials Forming, Department of Industrial Production Royal Institute of Technology, 100 44 Stockholm SWEDEN

autor

Stahlberg U.

• Division of Materials Forming, Department of Industrial Production Royal Institute of Technology, 100 44 Stockholm SWEDEN

Bibliografia

• [1] Geffraye F., Lanteri V., Gratacos P. and Dauphin S. (2000): Influence of the roll bite conditions on lilt surface quality of hot rolled coil. - Iron and Steel Society/AIME, 42nd Mechanical Working mid Steel Processing Conference Proceedings, vol.38, pp.233-242.
• [2] Hum B., Colquhoun H.W. and Lenard J.G. (1996): Measurements of friction during hot rolling of aluminium strips. - J. of Materials Processing Technology, vol.60, No. 1-4, pp.331-338.
• [3] Jarl M. (1988): Friction and forward slip in hot rolling. - Scand. J. Metali., vol.17, No.l, pp.2-7.
• [4] Lenard J.G. and Zhang S. (1997): A study of friction during the lubricated cold rolling of aluminium alloy. - J. of Materials Processing Technology, vol.72 pp.293-301.
• [5] Li G.Y. and Pinni M. (2000): Evaluation on lubrication and friction in cold rolling based on si analysis and forward slip. - 2nd European Rolling Conference, May 24-26, Vasteras, Swell Processing Conference Proceedings.
• [6] Rowe G.W. (1977): Rolling of flat slabs and strip, In: Principles of Industrial Metalworking Proc - London: Edward Arnold, pp.208-221.
• [7] Schey J. (1984): Rolling, In: Tribology in Metalworking - Ohio: ASM, Metal Park, pp.274-290.
• [8] Zhang S. and Lenard J.G. (1992): The effects of the reduction, speed and lubricant viscosity on frld in cold rolling. - J. of Materials Processing Technology, vol.30, No.2, pp. 197-209.