Research and practice of ESP long kilometer rolling technology
In order to improve the stability of the strip shape in the rolling with long kilometers of ESP production line,and solve the quality problems such as ribbing of coils and serious wave shape in the middle and late period,a large number of field tracking tests,data analysis and research were carried out on the factors affecting the continuous casting kilometers,such as the drawing speed of continuous casting,the temperature difference of the slab section,the roll shape,the wear model,the matching of axial and transverse movement of rolls,the key process of the rolling line and the temperature control.A complete set of ESP long kil-ometer rolling technical scheme was formed,such as casting speed increase system,temperature difference control strategy of casting slab section,rolling process and thermal history control,roll shape design,load distribution optimization,wear and roll shifting coefficient adjustment,etc.,and the ESP headless rolling production line was successfully realized with a single pouring time of 200 km long continuous rolling.The operation rate and yield rate of the mill are greatly improved,the rolling cost is ef-fectively reduced,and the economic benefits are remarkable.
ESP production linelong kilometer rollingstrip shapeoperation rateyield ratelow cost
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