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A pilot mill test method for lubricants and emulsions in hot and cold rolling
RISE, Swerea, Swerea MEFOS AB.
2005 (Engelska)Ingår i: Proceedings - European Metallurgical Conference, EMC 2005, 2005, Vol. 2, s. 807-812Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

As increase of productivity and good product quality are constant goals within the rolling industry, the lubrication formulation is constantly modified or changed to meet these goals. However, it is a costly and not always problem free process to make industrial on-site tests of new lubricants. A more cost efficient way is to test the lubricants on a pilot scale first. The advantage is that there are good probabilities to isolate the lubricant performance and compare the outcome with the performance of other lubricants under controlled conditions. The pilot mill tests in this investigation were performed on 90 mm wide and 3 mm thick hot rolled aluminum strips. During the pilot rolling mill trials several products were tested. The tests were aimed at optimizing the performance of a traditional emulsion as well as a new lubricant, in this case a conditional emulsion. Different formulations were tested where additive levels, HLB values and viscosity were varied to test the performance of the traditional lubricant. The active components and the cloud point of the conditional emulsion were also varied and evaluated. Different lubricants were applied sequentially by a direct change of lubricant source during the rolling of one strip and under constant rolling conditions such as strip speed, strip tension and reduction. Parameters computer logged are strip back and forward tension, strip entry and exit speed, motor current, reduction, roll and strip exit temperature, upper and lower roll torque and roll force. The project target is to: • Improve the lubricant selection process • Allow an accurate application procedure testing facility • Increase the knowledge of novel products • Introduce the pilot mill as a testing facility one step before industrial on-line tests The test results show that changes of lubricant give an immediate response in rolling forces and rolling torques, which makes a direct comparison between different lubricant performances under identical mill conditions possible. Results from similar tests for the steel industry indicated a direct transferability to the industrial case. The strips surfaces will also be thoroughly analyzed but these analyses are not complete and will not be further discussed within this paper.

Ort, förlag, år, upplaga, sidor
2005. Vol. 2, s. 807-812
Nyckelord [en]
Emulsins, Lubrication, Pilot plant, Product testing, Strip rolling
Nationell ämneskategori
Materialteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-13504Scopus ID: 2-s2.0-84871264634ISBN: 3935797230; 9783935797238 (tryckt)OAI: oai:DiVA.org:ri-13504DiVA, id: diva2:973713
Konferens
European Metallurgical Conference, EMC 2005
Tillgänglig från: 2016-09-22 Skapad: 2016-09-22Bibliografiskt granskad

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Scopushttp://www.scopus.com/inward/record.url?eid=2-s2.0-84871264634&partnerID=40&md5=5318ae5aa1d7fbd748168ac9c14e843e
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