Multifunction rolling mill for H-beam and rolling method of rolling H-beam with multifunction rolling mill

摘要

There is provided a multifunction rolling mill for rolling an H-beam including: a pair of right and left vertical rollers composed of flange thickness reduction rollers; web thickness reduction horizontal rollers; and a pair of upper and lower horizontal rollers arranged on both sides of the web thickness reduction rollers, having flange width reduction rollers freely moved in the vertical direction by retracting mechanisms. In the case of reduction of flange thickness and web thickness rolling, the flange width reduction rollers of the above horizontal rollers are moved upward and downward so that the flange width reduction rollers of the horizontal rollers do not interfere with the vertical rollers.