To harden the necks for the bodies hardness of 45 HSD the technology of hardening with high-frequency heating is introduced in the Company.
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The roll bodies hardening is executed in the automated induction hardening
facility with induction heating. This provides recurrence of the hardening
results. Hardness variation does not exceed 2-3 HSD. The work rolls have the
depth of the effective case up to 45 mm, the backup rolls - up to 60 mm along
the radius. To harden the necks for the bodies hardness of 45 HSD the technology of hardening with high-frequency heating is introduced in the Company. |
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