Method of producing a cold-rolled strip in one pass
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United States of America Patent
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Jun 2, 1998
Grant Date -
N/A
app pub date -
Aug 30, 1996
filing date -
Sep 1, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing a cold-rolled strip from a stainless, ferretic or austenitic high-grade steel or a titanium alloy, wherein the strip which has been wound into a coil and has been manufactured by a hot-rolling or casting process is subjected in one pass to the steps of unwinding the coil, mechanically descaling the strip if required, subsequently chemically and/or electrochemically first or black pickling of the strip, then cold-rolling the strip to finished dimensions, degreasing the strip as required, annealing the strip, finish-pickling the strip and, if necessary, passivating, dressing and stretcher-leveling the strip. The pickling step is carried out in a pickling solution which contains hydrochloric acid, sulfuric acid and/or nitric acid.
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