抄録
A varieties of small lot production and complicated processes are the principal forms of specialty-steel manufacturing. However, the amount of rolled products in Chita Plant, the largest specialty-steel plant in the world, exceeds 130, 000mT per month. This large tonnage could not be achieved without the computerized manufacturing systems including production-planning, process-controlling and quality-assurance programs. This paper, describes MERODY-System (Melting and Bloom Rolling Dynamic Control System) which makes the basis of the whole systems.
MERODY consists of, fundamentally,
(1) Schedule and technical-planning by dialogues between planners and computer;
(2) On-line process-controlling with various sub-systems and direct instructions through CRT displays to work shops.
This system had been developed in 1978 as the first step, and it was revised with a new large computer (ACOS 800-III) in 1980 in response to the installation of the new continuous casting machine. And at the present time, the efficient production of specialty steels with satisfactory properties are conducted through this system.
