1 results about "Rolling speed" patented technology

In order to solve the problem that 6061 mirror aluminum is difficult to produce in the prior art, the invention provides a preparation method of a single-sided high-glossiness 6061-H22 state aluminum alloy mirror plate, and the single-sided high-glossiness 6061-H22 state aluminum alloy mirror plate is prepared through reasonable raw material preparation, fusion casting, high-temperature homogenization heat treatment, hot rolling and cold rolling, mirror rolling, cleaning and incomplete recrystallization annealing. The contents of Mg, Si, Fe and the like in raw materials are controlled within a narrow range, the gas content and compound inclusions in casting are strictly limited, and the size of a second phase left in a cast ingot is sufficiently refined in cooperation with high-temperature homogenization heat treatment; secondly, the high-glossiness surface after mirror rolling is guaranteed by controlling roller grinding parameters and rolling oil parameters in mirror rolling, and the reduction rate, the rolling speed and the like in the rolling technology; and finally, cleaning and incomplete recrystallization annealing are carried out, so that the 6061 mirror aluminum alloy plate strip with the surface glossiness of a single face of the coiled material reaching 820 GU or above, the transverse reflectivity reaching 80% or above, the longitudinal reflectivity reaching 83% or above, the diffuse reflection rate lower than 10% and the surface roughness Ra 0.02 [mu]m is obtained.