Nickel-PTFE Coating

涂層特點

以PTFE為基礎添加Ni等其他金屬元素，具有極高的化學穩定性，同時保證優良的耐磨性和抗腐蝕性，兼具低的摩擦系數和良好的自潤滑性。

Nickel–PTFE(Teflon)Plating (Ni-Te)

Polytetrafluoroethylene also known as P.T.F.E. It is a high polymer chemical consisting of fluorine resin. More than 1 ethylene hydrogen atom is replaced by fluorine atom; P.T.F.E. is a polymer that has millions of macromolecules. It is heat resistant, oil resistant, and chemical resistant and is not affected by almost all solvents.

●Nickel–Teflon Plating

P.T.F.E. as a solid lubricant disperses its P.T.F.E. particle uniformly over its Nickel Teflon film. It is a perfect self-lubricating film. When P.T.F.E. coated metal is rubbed against each other the P.T.F.E. particles disperse and spreads out thus reducing friction and prevents sticking.＊(μ）

Nickel metal becomes the matrix which contains phosphorus so the film is hardened by the heat during heat treatment.

Indicator of the characteristics of Nickel-Teflon plating under the various conditions.

＊Appearance of the surface and coefficient at friction by heat treatment（cf. figure 1）

After Nickel-Teflon plating at 10μm completed the P.T.F.E. particles that are exposed dissolve at the temperature at 350℃and change its form into fan shape, this further decreases the frictional coefficient.

＊Temperature of heat treatment and hardness（cf. figure 2）

After Nickel-Teflon plating at 3μm, the Nickel-Teflon plating shows the hardness at 300Hv under the condition of eduction. After heat treatment of 300℃x1Hr the hardness achieved is 550Hv. This hardness is the appropriate hardness.

＊Thickness of plating film and hardness（cf. figure 3）

When the thickness of Nickel-Teflon plating is 20μm or over it achieves the same strength as just Nickel-Teflon plating.