Coating and surface processing | |
Название | Improvement of skin pass rolling to provide better surface quality of Zn-coated steel |
Автор | Th. Koll, M. Bretschneider, T. Klinkberg, F. Luther, B. Maas |
Информация об авторе | Salzgitter Mannesmann Forschung GmbH (Salzgitter, Germany): Koll Th., Dr. Nat., Head of Dept. “Metal Coatings”, e-mail: t.koll@sz.szmf.de
Poppe + Potthoff Präzisionsstahlrohre GmbH (Werther, Germany): |
Реферат | Non-alloyed and low-alloyed steels have after recrystallizing annealing the distinctly expressed yield strength stipulated by conglomeration of dissolved interstitial atoms (carbon. Nitrogen) in defect areas of a crystal lattice. Thereby unfavourable dents from rolls, as well as fluidity lines can occur during cold deformation. To provide these appearances at the exit sides of up-to-date galvanizing lines, skin pass rolling stands are mounted. They allow to create free dislocations in material due to small plastic deformation. Different kinds of skin pass rolling texture (based on Topocrom texture) are presented to obtain optimal homogeneous surface of galvanized steel strip providing individual skin pass deformation degree required for each steel grade. Topocrom technology opens wide opportunities for forming different roll texture. |
Ключевые слова | Galvanized strip, skin pass rolling, steel grades, surface, rolls, roughness, texture, dents |
Библиографический список | 1. Ritterbach, B.: Qualitätsregelkreis zur Erzeugung defi nierter Feinblechrauheiten mit verschiedenen Texturierverfahren, VDI-Verlag, Düsseldorf, 1998. |
Language of full-text | русский |
Полный текст статьи | Получить |