METHOD OF DETERMINING AGEING DURATION OF SEMIPRODUCTS OF THERMALLY STRENGTHENED ALUMINIUM ALLOYS BASED ON ALUMINIUMCOPPER-MAGNESIUM SYSTEM

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to metallurgy, thermal processing u0437u0430u043du0438u043cu0430u044eu0449u0435u0439u0441u00a0 polui river; u0430u0431u0440u0438u043au0430u0442u043eu044d number of aluminum alloys. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - to improve the stability of mechanical properties of semi-finished products. new in the str u0441u043eu0431u0435 u00a0u0432u043bu00a0u0435u0442u0441u00a0, extract temperature ageing J80 - 205.u0441 u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442, taking into account the duration of heating the hit ratio (j -. - 42.4 (t + (207,7 is (t) a.n (7,42 - 00357 (t) / (t - 180), where d is the length of heating furnace u0441u0442u0430u0440u0435u043du0438u00a0 hit products of 80 c until the preset temperature u0441u0442u0430u0440u0435u043du0438u00a0 (, 0) mines. 2, table 2).