Controlled cooling equipment and controlled cooling process for medium-carbon non-tempered steel

The invention provides controlled cooling equipment and a controlled cooling process for medium-carbon non-conditioned steel, and belongs to the technical field of engineering vehicle engine part forging. Comprising a controlled cooling box, an air cooling box and a heat preservation furnace, and a fan structure is fixedly mounted at the top of the outer surface of the controlled cooling box and comprises a bottom plate; the invention relates to a water dispenser. Workpieces are placed into the first conveying belt from the conveying plate, the first motor is started to enable the first conveying belt to operate, the workpieces are conveyed s-s in the controlled cooling box, meanwhile, according to different sizes of the workpieces, the first pull handle is pulled to enable the sliding strip to slide in the sliding rail, the tooth set drives the first gear to rotate, and the second gear drives the second gear to rotate. Due to the fact that the size of the second air outlet groove is different from that of th