High performance wire rod DL75 for cable strand was developed by optimizing smelting and controlled rolling and cooling process parameters.The outlet temperature of the pre-finishing rolling was set at 900 ℃,and the non-recrystalliza-tion zone was realized in the finishing rolling mill group.The actual cooling speed of Stermore controlled cooling roller table was measured.The rolling results showed that the sostenite rate was 87％,the grain size was 8,and the average tensile strength was 1 070 MPa,which met the customized requirements of customers.
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