Autocatalytic Ni-PTFE Composite Coating on Brass Lock Core Rotors
Engineering Overview: Technical analysis of Ni-PTFE composite electroless plating, delivering 0.08 dry friction and 450 HV hardness for unlubricated cleanroom locks.
Technical & Engineering Specifications
| Process | Autocatalytic Electroless Ni-PTFE Deposition |
|---|---|
| Friction | 0.08 Ultra-Low Dry Friction |
| Hardness | 400 - 450 HV |
| Standard | ASTM B733 High-Phosphorus Nickel |
| PTFE Volume | 20% - 25% Sub-Micron PTFE Particles |
Self-Lubricating Composite Plating
Ni-PTFE (Nickel-Teflon Composite) co-deposits sub-micron PTFE particles (20%–25% by volume) inside an autocatalytic nickel matrix.
Tribological Performance
- Dry Friction: Achieves $\mu = 0.08$, operating for 100,000 cycles with zero oil or graphite.
- Corrosion: Withstands $>240\text{ hours}$ ASTM B117 salt spray.
Frequently Asked Engineering & Selection Questions
Q1: What are the primary material characteristics of this finish?
Technical analysis of Ni-PTFE composite electroless plating, delivering 0.08 dry friction and 450 HV hardness for unlubricated cleanroom locks.