JP2009006397A5 - - Google Patents

Claims (3)

An intermediate rolling step of rolling a web and a flange of a T-shaped steel piece roughly formed into a T-shape, and a finishing rolling step of performing a finish rolling to make the T-shaped steel piece obtained in the intermediate rolling step into a product shape A method for producing a T-shaped steel having
The intermediate rolling process includes a rolling process by a first rough universal rolling machine in which upper and lower horizontal rolls roll down the entire upper and lower surfaces in the web thickness direction, an edger rolling process in which the end face of the flange is rolled down, and upper and lower horizontal rolls. While the roll is rolling down the upper and lower surfaces in the plate thickness direction excluding the vicinity of the end of the web, one of the left and right heel rolls rolls down the web end surface in the web height direction, and the other is the flange in the plate thickness direction second and a rolling step using rough universal rolling mill, the finishing rolling step the method for producing a T-shaped steel, characterized by have a rolling process by the finishing universal rolling machine for rolling the. A T-shaped steel rolling equipment row for rolling a web and a flange using a T-shaped steel piece roughly formed into a T-shape as a material to be rolled,
As an intermediate rolling step, a first rough universal rolling mill having upper and lower horizontal rolls whose roll surface width is wider than the in-web dimension of the material to be rolled, and an edger rolling machine for rolling down the end face of the flange of the material to be rolled Upper and lower horizontal rolls whose width of the roll surface is narrower than the in-web dimension of the material to be rolled, and one that reduces the flange in the plate thickness direction and the other that reduces the end surface of the web in the web height direction. a second coarse universal rolling machine are arranged with vertical rolls with Ri Na,
As the finish rolling step, rolling equipment rows of T shaped steel width of the roll surface is characterized Rukoto finish universal rolling mill, such are arranged with a wider upper and lower horizontal rolls from web in dimensions, of the material to be rolled.   A groove portion whose bottom is linear and whose width is larger than the web thickness is formed at the center in the height direction of the scissors roll that rolls down the web end face of the second rough universal rolling mill in the web height direction. The rolling equipment row | line | column of T-section steel of Claim 2.