Use of Cryogenic Treatment to Improve Profile-Bending Roll Wear Resistance

Resumo

The possibility of using cryogenic treatment technology for tool steel of grade Kh12VMF in preparing rolls for a profile-bending mill is analyzed. The nature of the effect of cryogenic treatment on the structure is considered: proportion of residual austenite and secondary carbide distribution, mechanical properties, and wear resistance of steel analog AISI D2. Results are analyzed for this experiment under Severstal conditions for improving the wear resistance of roundhead rolls by cryogenic treatment. Preliminary evaluation is provided for the efficiency of using cryogenic treatment in the production of bent rolled product.