Abstract: The problem of excessive width at the head and tail of hotrolled electrical steel coils is a common production difficulty faced by domestic steel mills. This article mainly described the independent development of a rough rolling vertical roll AFC and SIN curve short stroke control model by model personnel through onsite data analysis and production tracking debugging, which improved the quality of the head and tail width of hotrolled electrical steel, effectively reduced the high point and ultra wide range of the head and tail width of hotrolled raw material coils, and thus reduced the incidence of edge breakage or even strip breakage accidents caused by scratching the guide rollers of the rolling mill in the next process due to the ultra wide head and tail of the strip steel. This technology is of reference significance for improving the yield of electrical steel production lines.

Key words: electrical steel, ultra wide head and tail, roughing, short stroke control, scraping edges