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The "revenge" of the three-high rougher
Örebro University, Department of Technology.
2004 (Swedish)In: Stahl und Eisen (1881), ISSN 0340-4803, Vol. 124, no 12, p. 141-147Article in journal (Refereed) Published
Abstract [sv]

Surface defects due to cooling the billet surface in the roll contact in the roughers is a problem in modern wire rod mills. The cooling reduces the ductility and gives rise to defects. Also the heating of the roll surface gives fire cracks in the rolls and bad surface of the rod. The defects can be avoided by making the roughing in reversing stands. For rolling 1 850 kg, 140 mm square billets, the capacity can be 62 to 134 t/h in two-high roughers, and 62 - 167 t/h in three-high roughers. By separating the rolling in an upper and a lower position the space for guides will be improved, and the barrel length can be reduced, giving better tolerances out of the stand. By replacing a worn-out middle roll and shifting the upper and lower rolls, four rolls only make up two roll sets.

Place, publisher, year, edition, pages
2004. Vol. 124, no 12, p. 141-147
National Category
Mechanical Engineering
Research subject
Mechanical Engineering
Identifiers
URN: urn:nbn:se:oru:diva-4527OAI: oai:DiVA.org:oru-4527DiVA, id: diva2:138826
Available from: 2007-07-12 Created: 2007-07-12 Last updated: 2017-12-14Bibliographically approved

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Lundberg, Sven-Erik

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