| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.2 ( March 1981 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Characteristics and Operation of Multipurpose Continuous Annealing Line at Chiba Works Fumiya Yanagishima, Yuji Shimoyama, Munetoshi Suzuki, Hideo Sunami, Takehiko Haga, Yukio Ida, Toshio Irie |
| Synopsis : The world's first multipurpose continuous annealing line facility started operation in July 1980 at the cold rolling plant, Chiba Works, Kawasaki Steel Corporation (KSC) and achieved steel production of 15 000t in September. Steels to be produced involves five types; high temper tinplate, low temper tinplate, non-oriented electrical steel, high-strength cold rolled sheet steel and ordinary cold rolled sheet steel. And three modes of heat cycle are applied to produce these five types of steels. In order to realize three modes of heat cycle in a single continuous annealing line, several technical innovations have been achieved in the mechanical, electrical and instrumental fields such as steel strip cooling system, intrafurnace tension control and steel strip temperature control. And a unique design and arrangement of cooling sections with multiple functions have also been developed. KSC has successfully established the production system and operation technology for producing five types of high quality steel with high productivity at low cost. |
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