NiP Composite Coating of Piston Ring by Plate and Bumper Method
399
Fig. 1 Assembled mandrel
Fig. 2 a Front view of the special fixture, b plating set up for composite coating
cycles per second. The current density optimized is 3 amps/dm
2 to achieve uniform
plating (Fig. 3).
The composite plating was carried out similar to that of conventional NiP plating
by varying concentration of SiC and dunking speed and is given in Fig. 4a–d.
Fig. 3 NiP composite-coated piston ring
399
Fig. 1 Assembled mandrel
Fig. 2 a Front view of the special fixture, b plating set up for composite coating
cycles per second. The current density optimized is 3 amps/dm
2 to achieve uniform
plating (Fig. 3).
The composite plating was carried out similar to that of conventional NiP plating
by varying concentration of SiC and dunking speed and is given in Fig. 4a–d.
Fig. 3 NiP composite-coated piston ring