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Ferritic rolling with additional annealing to produce a deep‐drawable ultra‐thin‐gauge hot strip
Author(s) -
Tomitz Andreas,
Kaspar Radko
Publication year - 2000
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.200005721
Subject(s) - annealing (glass) , recrystallization (geology) , strips , hot rolled , metallurgy , materials science , deep drawing , mechanical engineering , composite material , engineering , geology , paleontology
In order to produce ultra‐thin hot strips by ferritic rolling, that exhibit a good deep‐drawability, finishing temperatures must be reduced, so that an additional recrystallization annealing of hot strips after coiling becomes necessary. In the present work laboratory investigations were carried out on a commercial IF and ELC steel by using the hot deformation simulator Wumsi. By means of texture measurement and the calculation of r‐values the process parameters of the ferritic rolling and of a subsequent annealing were optimized. Additionally to a conventional annealing of cold coils a new energy saving processing route with direct charging of warm coils was tested by the laboratory simulation. Particularly good deep‐drawabilty were achieved by this technology.