Aiming at the poor surface conditions of the strips produced by single-roll casting and a slower speed and limited applicable alloys in conventional twin-roll casting

a new method of top side-pouring twin-roll casting process was proposed to overcome those disadvantages.Al-10Cu alloy strip with 100mm in width and 1.7～2.0mm in thickness as well as several meters long was produced successfully

and the casting speed could reach up to 60m/min.The surface quality and microstructure of the Al-10Cu strip produced were observed by OM（optical microscope）

SEM（scanning electron microscope）.The results show that the top side-pouring twin roll casting process can produce those alloys strips which cannot be produced by conventional twin roll casting

and the profile and surfaces of the strip exhibit desirable with ignorable defects

and the microstructure is fine and homogeneous with absence of observable segregation.In order to understand the behavior of the molten metal during casting

a numerical simulation was conducted using the ANSYS Fluent

and the results verified the experimental ones.