Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Ya Yu Osada Scient Res AfiledCriticalState Ya Yu Osada Scient Res A
Priority to UA20031211589ApriorityCriticalpatent/UA69906C2/en
Publication of UA69906ApublicationCriticalpatent/UA69906A/en
Publication of UA69906C2publicationCriticalpatent/UA69906C2/en
Method for making a zee armature section with unequal shelves includes sequential in transitions bending by rollers, in stands of continuous profile-bending mill, of a strip half-finished product, with formation of intermediate zee profile with shelves having different width; at that bending of the shelves and the wall are performed by prescribed angles. At formation of the intermediate zee profile in the 3 last stands of the profile-bending mill the edge of the larger shelf is bended in arc by convex side outside; at that the value of curvature of the edge is determined by the formula; after that one performs step-by-step punching of the intermediate profile, in two steps, in which at the first step one performs formation of the transverse crimps, with bending the edges at the larger section, and at the second step one performs cutting and bending of the edges of the openings in the wall of the section.
UA20031211589A2003-12-152003-12-15Method to make zee-type non-equal shelves armature section
UA69906C2
(en)
PIECE OF HARDWARE IN THE SHAPE OF BAR FOR FALLEBA FITTINGS AND FALLEBA FITTING PROVIDED WITH IT, AS WELL AS THE SEMI-FINISHED PRODUCT AND PROCEDURE FOR ITS MANUFACTURE.