Heat treatment of large-scale rolling machine rolls by high-power gas dynamic laser at Cherepovetz Metallurgy Work

摘要

The results are presented of measurements of surface hardness and wear resistivity of rolling machine 2000 rolls which were under heat treatment by high power gas dynamic laser at Cherepovetz Metallurgy Work. Surface hardness of rolls increased from 70 HSh to 80 - 85 HSh. Wear resistivity also showed considerable increase as compared with untreated rolls.