| 摘要 |
PURPOSE:To suppress the bulging in the end part of a material to be rolled for H-shaped steel in accordance with edging by providing a pair of flat rolls for the side faces of the respective rolls of edger mills by way of the flange of said material, and pressing the respective peripheral surfaces of the flat rolls to the outside surface of the flange. CONSTITUTION:A pair of flat rolls 7 are provided by way of the flange of a material 5 to be rolled on the side surfaces of the roll pair 6 of edger mills which subject the material 5 to edge rolling, and the respective circumferential surfaces R thereof are brought into abutment to the outside surfaces of the flange. Oil hydraulic devices 9 interposed between bearing stands 8 and a supporting base 11 are used to adjust the flat rolls 7 in the width direction of the flange. An oil hydraulic device 10 interposed between a sliding base 12 and a mounting base 13 and the above-described devices 9 are used in combination to adjust the rolls 7 in the thickness direction of the material 5. While the material 5 is reduced down by the roll pair 6, the material is reduced down in the thickness direction by the side surfaces S of the roll pair 6 and the peripheral surfaces R of the rolls 7. Clearances delta for prevention of abrasion are provided between the roll pair 6 and the flat rolls. |
