Process automation system revamp for 3000mm Plate mill at Xinyu Steel, upgraded the product size accuracy and performance. After 3 years online use, the system helped the mill produce 4mm gauge ship plate for about 2000,000 tons with execellent performance. As the most important part of project, the ship plate product project,was rewarded the national new tech. developing medal, second class.
New techs in the system：
1.New Load distribution models
2.New Mill Modula Models
3.Soft Pyrometer observer Models
4.Dyanamic Optimizing Models
5.Heavy Draft of Low Temperature Models
6.Profile Control And Gauge Control De-couple Models
7.Roll Change Schedule Models
8.Roll Wear and Expansion Models
For the first time, the plate mill process automation system was revamped by the demostic company with much more execellent results than those revamped by foreign companies.
The Yield ratio was upgraded by 1.5%, and the gauge hit ratio reached 98.96%.