METHOD OF REINFORCEMENT STEEL PRODUCTION Russian patent published in 1996 - IPC

FIELD: rolling of unlimited length metal with section of repeated shape to produce special pieces, method is used for production of reinforcement steel of round or periodical shapes No 6, 7, 8, 10 reinforcement steels of mainly small diameters, that are not to be used for butt-welding and used for reinforcement of concrete structures. SUBSTANCE: method of reinforcement steel production provides for cold deformation of hot-rolled blank, shape formation and control of good production. Before beginning of cold deformation depending on value of guarantied strength of reinforcement rod required area of its cross-section is determined taking into consideration of steel mechanical properties and their following changes in process of cold deformation and on the base value of rolling stand reduction is set. Method provides production of cold rolled steel for reinforcement of ferroconcrete structures with guaranteed strength, increase of economical efficiency of its usage due to decrease of rod strength deviations range and decrease of reinforcement rod cross-section area and its mass. EFFECT: production of reinforced concrete structures with guarantied strength, increased economical efficiency. 2 dwg