In the past, heat treatment of high precision ball screws and gears used in the food processing machinery and Office Automation machinery industries resulted in the formation of scales and required post heat treatment processing such as shot peening and grinding.
As a result, impurities, such as filings or sand, reduced the ball screw’s precision and quality.
Fuji Denshi’s “non oxidizing high frequency induction hardening” is a single-shot heating method that achieves ideal high precision heating while avoiding the formation of scales.