Development of High Dimensional Accurcy Smaller Diameter Wire Rods and Square Coils Manufactured by 4-Roll Mill

摘要

After introducing 4-roll mills for steel bars in 1994, Kawasaki Steel developed and introduced it for wire rods in 1998. Then, thanks to the development of various new technologies based on the characteristics of 4-roll rolling method, the company succeeded in constructing a highly precise-measurement and size-free rolling production system for steel bars and wire rods ranging from 4.2 to 85 mm in diameter and steel square coils from 12.7 to 27 mm on a side. Able to manufacture hot-rolled steel bars and wire rods with such high measurement precision, Kawasaki Steel can provide products to the automobile steel and other special steel markets in sizes and shapes as similar as possible to the finished products, thus minimizing further processing.