| 摘要 |
PROBLEM TO BE SOLVED: To provide an annealing method capable of preventing the stickiness (build up) of foreign matters onto the surfaces of a conveying rolls for a long term and improving the quality stability and productivity of a steel sheet even when annealing the steel sheet in a continuous annealing furnace provided with conveying rolls subjected to a ceramic thermal-spray coating on the surface, and to provide the continuous annealing furnace. SOLUTION: In the method for annealing the steel sheet in the continuous annealing furnace provided with the conveying rolls subjected to the ceramic thermal-spray coating on the surface, the difference between the atmospheric temperature near the conveying rolls applied with the above coating on the surfaces and the steel sheet temperature in contact with the conveying rolls subjected to the ceramic thermal-spray coating on the surfaces is defined as≤230°C. COPYRIGHT: (C)2006,JPO&NCIPI
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