The effect of bending radius(2.5~7.5 mm)

tension load(20～80 N)and rolling direction of specimen on reversed bending times of imported cold rolled non-orientation silicon steel sheet has been tested. Results showed that as bending radius R was 5 mm

with increasing tension load from 20 N to 60 N

the reversed bending times of longitudinal specimen decreased from 24 to11

and with increasing tension load from 60 N to 80 N

the reversed bending times was constant; and as tension load was 60 N

with increasing bending radius R from2.5 mm to 7.5 mm

the average reversed bending times of longitudinal specimen increased from 6.5 to20.7.The reversed bending times of longitudinal specimen was higher than that of transverse specimen by 6.6%~22.7%.