METHOD OF CONTINUOUS HEAT TREATMENT OF COLD-ROLLED STRIP OF LOW-CARBON STEEL

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to metallurgy, in particular to a continuous heat treatment u0445u043eu043bu043eu0434u043du043eu043au0430u0442u0430u043du044bu0445 strips u043fu0440u043eu043au0430u0442u0430u043du043du044bu0445 of bars, and can be used in the stuff tin thickness of 0.14 - 0.25 mm u0434u043bu00a0 deep u0432u044bu0442u00a0u0436u043au0438. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 a tin with a hardness of 54... 60 units. u043du0440u0437u043eu0442.continuous thermal treatment of u0445u043eu043bu043eu0434u043du043eu043au0430u0442u0430u043du043eu0439 tin steel 08 led regime: heating up to 480 520u0441, re heating to 640 - 680u0441 and slow cooling lead to 480 520 with a speed of 0.8 - 1,7u0441 / with. as a result u0438u0441u043au043bu044eu0447u0430u0435u0442u0441u00a0 u0432u043bu0438u00a0u043du0438u0435 instability the chemical composition of the steel and rolling temperature on properties of u0433u043eu0440u00a0u0447u0435u0439 u043fu043eu0434u043au0430u0442u0430 finished tin. 1, table 2).