The invention discloses a preparation method of a bidirectional perpendicular controlled-rolling trace TiC reinforced Al-Cu-Mg
alloy plate. The preparation method comprises the steps that 1, TiC-Al intermediate
alloy is prepared through an endogenous preparation method; 2, Al-Cu-Mg
alloy melt is prepared; 3, the TiC-Al intermediate alloy is pre-heated and then pressed into the Al-Cu-Mg alloy melt,so that the addition of TiC
ceramic particles is 0.1-0.6%, by weight, of the total amount of Al-Cu-Mg alloy melt; 4, a
slag remover is added, after stirring and heat preservation are conducted, the melt surface
dross is removed; 5, after the melt is cast into a steel mold, TiC reinforced Al-Cu-Mg alloy
ingot is obtained; 6, the TiC reinforced Al-Cu-Mg alloy
ingot is
cut into a cuboid alloy block,and the
surface oxidation film of the alloy block is removed by
grinding; and 7, after the alloy block is subjected to homogenization treatment, second rolling, solidification, water
quenching and the aging treatment are conducted after first rolling and annealing, and the TiC reinforced Al-Cu-Mg alloy plate is obtained.