| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.13 ( September 1985 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of On-Line Quality Assurance System in the New Billet Mill Eisuke Yamanaka, Junjiro Yamasaki, Yasuhiro Nakagawa, Takuma Shibayama, Takayoshi Miura |
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Synopsis : To rationalize the manufacturing process of materials for longitudinal products and achieving synchronous operation between CC and rolling processes, a new billet mill has been constructed with the aim of modifying of No. 1 and No. 3 bloom casters at Mizushima Works. This paper reviews the outline of the sophisticated quality assurance system for the mill. The system whose functions are automatic designing of production specifications, on-line quality judgement with advanced NDI installations, and piecewise tracking and control forms a complete on-line quality assurance system. Since its commercial commissioning in February 1984, the full functioning of the system has greatly contributed to the smooth rating up of the mill and to the production of high-quality round and square billet, which has resulted in the significant improvement in the ratio of qualified products in the succeeding processes. |
| TextiPDF: 14p./609kbj |