METHOD OF CHANNEL PROFILE PRODUCTION AND RELATED DEVICE Russian patent published in 2009 - IPC B21D5/06 

FIELD: metallurgy.

SUBSTANCE: invention relates to production of cold-bent rolling profiles, mainly, light-weight channel profiles with horizontal wall, horizontal shelves and perforated side walls with vertical slotted perforations. The horizontal shelves are squeezed to the equal value by two pairs of driven squeezing rolls. The horizontal wall is squeezed by two pairs of driven squeezing rolls ensuring that slotted perforation sloping to the vertical axis of side walls is at the given angle. The device includes two shoes, two pairs of driven squeezing rolls installed at the inlet in the same axial plane to squeeze horizontal profile shelves and another two pairs of driven squeezing rolls being placed at a certain distance from them along profile movement direction to squeeze horizontal wall of the profile. There are also two horizontal idlers installed in serial arrangement after driven squeezing rolls to squeeze horizontal profile wall at the level corresponding to the level of horizontal shelves of the profile. Besides, all squeezing rolls are implemented so that they can move vertically within the preset limits and are provided with hatched working surfaces.

EFFECT: improved operational characteristics and reduced metal consumption.

3 cl, 2 dwg, 1 ex