Control method for reducing surface crush damage of wire spring steel

The invention discloses a control method for reducing the surface crush damage of wire spring steel. The control method comprises the procedures of heating, descaling, rolling, wire spraying, air cooling, coil collecting and bundling. In the descaling procedure, high-pressure water is adopted for descaling, and the pressure is controlled to be 16-20 Mpa, in the wire spraying procedure, a formed coiled wire coil is subjected to swing treatment, swing changes in a sine curve mode, the swing time is controlled to be 1-4 s, and the swing amplitude is controlled to be 2%-5%, and in the bundling procedure, a coil is pre-pressed with 5-8t pressure, and then normal pressing is carried out with 12-18t pressure after the coil is gathered. According to the control method, extrusion damage generated in the bundling procedure of the spring steel coil is effectively reduced, the number of bundling extrusion damage defect points is reduced from 25 per coil to 6 per coil on average, the machining efficiency of a user is impr