CONTINUOUS ANNEALING EQUIPMENT, CONTINUOUS ANNEALING METHOD, METHOD OF PRODUCING COLD-ROLLED STEEL SHEETS AND METHOD OF PRODUCING COATED OR PLATED STEEL SHEETS
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United States of America Patent
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Issued Date -
May 16, 2024
app pub date -
Feb 14, 2022
filing date -
Mar 30, 2021
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To provide continuous annealing equipment, a continuous annealing method, a method of producing cold-rolled steel sheets and a method of producing coated or plated steel sheets which enable a quick response to fluctuations in material properties and enable minimization of fluctuations in mechanical properties of products. The continuous annealing equipment is continuous annealing equipment for steel sheets including, in this order, a heating zone (6) and a soaking zone (7), the soaking zone (7) including a first soaking zone (7A) and a second soaking zone (7B) provided after the first soaking zone (7A), the continuous annealing equipment including: a first induction heating device (9) provided between first soaking zone (7A) and a second soaking zone (7B); and a measuring device (10) configured to measure austenite fractions of the steel sheets at an exit of the second soaking zone (7B).
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