NACHI-FUJIKOSHI CORP.

Friction and wear properties of the CrN coating

• Cronion is nachi CrN coating name
• CrN does not attack the contact material and does not wear itself

Kind of test	Measurement of the amount of wear
Testing machine name	Ring on-chip friction wear testing machine
Test condition	(1)Lubrication = No lubrication (2)Circumferential velocity = 0.3 (m/sec) (3)Load = 3.0 (kgf) (4)Measurement time = 1 hour

Comparison of surface roughness

material : High Speed Steel SKH57 Roughness of the surface processing before 0.8S

Heat resistance

Change of coating hardness by tempreture