HEAT TREATMENT METHOD FOR INTEGRATED large forgings

摘要

1.method of heat treatment of large forgings, including annealing in u043cu0435u0436u043au0440u0438u0442u0438u0447u0435u0441u043au043eu043c frame building and two time leave, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, after forging was u0434u00a0u0442 cooling to the temperature of 250 350u0441 with subsequent insulated poise at a certain temperature, then u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 heating and u0438u0437u043eu0442u0435u0440u043cu0438u0447u0435u0441u043au0443u044e excerpt continue u043bu044cu043du043eu0441u0442u044cu044e 30 to 40 hours at the temperature of 20 to 40u0441 below the critical point Ac1,then u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 heating and ageing temperature below the critical point u0430u04413 20 30u0441 with subsequent cooling and poise at a temperature below u0430r3 20 30u0441.;2. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the cooling of the structure u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 in 2 environments, first in the water to the temperature on the surface of 500u0441 on the most delicate parts, etc. in the oil until u043eu0445u043bu0430u0436u0434u0435u043du0438u00a0 surface 70 is 100u0441.;3. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that a u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 after hardening temperature trends, and the first holiday for 20 30u0441 below next vacation.