Recently, Xingtai Steel wire rod plant took a series of measures to improve the production technology of 130 mm Q275CR export square bar and obvious effects have been achieved.

　　The plant increase stop block on the south of 2 # cooling bed of breakdown mill to ensure the continuous production, polish the hot cutting platform for the 2 # shear to ensure the shear velocity and sufficiently matching speed, modify 2 # thermal camber of the blade to reduce the impact of change shear blade on production by reduce the maintenance time from 40 min to 10 min, add hook speed of turning steel adjust dialog box In Wincc pictures to convenient the master station personnel to adjust the speed of turnover and improve the rolling rhythm according to the specifications of rolling and steel site condition. Workshop held the shift production communication meeting regularly with advanced team for standard to improve the operation skills of each shift.

　　The shift production ability of 130 mm square bar Q275CR is increased from 520 tons to 610 tons. The order delivery speed is increased, and at the same time, the cost of breakdown process is decreased significantly.