method of manufacturing u0445u043eu043bu043eu0434u043du043eu0434u0435u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du043du043eu0439 reinforcement steel u043du0435u043du0430u043fu0440u044fu0433u0430u0435u043cu044bu0445 periodic profile for reinforced concrete structures with high performance p u043bu0430u0441u0442u0438u0447u043du043eu0441u0442u0438

摘要

the invention relates to ferrous metallurgy and can be used for the production of reinforcement steel triangular periodic profile to u043du0435u043du0430u043fu0440u044fu0433u0430u0435u043cu044bu0445 prefabricated concrete class 400 - 600 mpa diameter of 4.0 - 14.0 mm.to obtain u0445u043eu043bu043eu0434u043du043eu0434u0435u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du043du043eu0439 reinforcement steel grades of "b" and "c" are its induction heating to the temperature of the mill in the u0432u043eu043bu043eu0447u0438u043bu044cu043du043eu0433u043e 350 - 450u00b0C followed by cooling to a temperature of 100 150u00b0C in passing the bath or in the u0434u0443u0448u0438u0440u0443u044eu0449u0435u043c device. the lower limit of the temperature in the 350u00b0C received empirical method.heating above 450u00b0C leads to a dramatic reduction in the u043fu0440u043eu0447u043du043eu0441u0442u043du044bu0445 characteristics of steel. cooling to the temperature of 100 150u00b0C is necessary to ensure the operational stability of nodes spooling machine.as the use u043au0430u0442u0430u043du043au0443 with the following chemical composition, carbon is not more than 0.24%, manganese of not more than 1,40%, not more than 0.30% silicon, nitrogen is not more 0014%, iron and the inevitable impurities. carbon equivalent of not more than 0.52. removal of oxide from the surface of the rod is in the u0432u043eu043bu043eu0447u0438u043bu044cu043du043eu0433u043e roller mill in u043eu043au0430u043bu0438u043du043eu043bu043eu043cu0430u0442u0435u043bu044fu0445.this profile is u043du0435u043fu0440u0438u0432u043eu0434u043du044bu0445 roller kletjah with summary u043eu0431u0436u0430u0442u0438u0435u043c to 30%. to ensure the required class (a yield stress) of reinforcement steel is the management requirements on the content of carbon and manganese in cath. anke. the class of fittings (class "b" or "c") is u0438u043du0434u0443u043au0446u0438u043eu043du043du044bu043c induction of finished valves in the range of 350 450u00b0C.according to the research of heating in the temperature range of 350 450u00b0C allows for the class of u0445u043eu043bu043eu0434u043du043eu0434u0435u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du043du043eu0439 and u0440u043cu0430u0442u0443u0440u043du043eu0439 steel (class "b" or "c") without reducing the