FIELD: metallurgy.
SUBSTANCE: deforming heat-strengthened rollers are made of 9XC, 9X type alloy steels of 58-65 HRC hardness. In this case, the working surfaces of the rollers are made of triangular and/or trapezoidal profile, and the mandrel has cylindrical shape with end sections of smaller diameter and stop flange of larger diameter. The working surfaces are coated with fluorine-based energy-modifying composition. At that, the working surfaces of the rollers and mandrels are made with allowance for restoring worn surface layer.
EFFECT: increased quality of treated surface and the accuracy of geometric dimensions.
8 cl, 3 dwg
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