Compared with that of one with only induction coils

the magnetic induction intensity in mold for electromagnetic continuous aluminum alloy slab measured by the Teslameter can not meet the requirements of soft contact electromagnetic continuous casting as a result of the dramatic fading of magnetic induction intensity in the mold

which is attributed to the low magnetic conductivity of aluminum wall resulting in the eddy loss in electromagnetic field.The silicon steel sheets with excellent magnetic conductivity can decrease magnetic reluctance in the mold and make major magnetic lines form loop to reduce magnetic fading and to improve the magnetic induction intensity in the mold through arranging around the induction coils.The optimized arranging condition of silicon steel sheets in the mold is as follows:setting silicon steel sheets at side and bottom of the induction coils

in which setting numbers at the side are six sheets with 1.8 mm in thickness and at a distance of 8.5 mm from coil.