| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.4 ( December 1981 ) Special Issue on Steel Pipe ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Automatic Rolling System of Medium Diameter Seamless Tube by Process Computer Control
Yasuhiro Sayama, Fusao Togashi, Akio Ejima, Hideo Abe, Yutaka Funyu, Kazuyuki Sakurada, Tatsuro Maguchi, Yoshio Taguchi |
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Synopsis : New automatic billet heating and rolling systems by the use of process computer have been developed in a new seamless tube mill at Chiba Works. Rolling control models consist of the presetting of rolling condition, its adaptive functions and a partial dynamic AGC. Several other new systems, such as for material tracking, operator guidance, data analysis and tool life control, have also been developed for this automatic rolling system. These systems are applied to the whole rolling line throughout from the billet charging to the finishing of the sizer rolling. The accuracy of the dimensions of the tube, tube-to-billet yield and production efficiency are remarkably improved over the conventional manual rolling by applying the automatic rolling system. An outline of the rolling system for each mill and an evaluation of the system are discussed. |
| TextiPDF: 13p./486kbj |