ELECTROLESS NICKEL
Electroless (chemical) Nickel-Phosphorus Plating is the most important catalytic process used in the last two decades. Licco`s nickel-phosphorus coating have different content of phosphorus. we have three types of coatings: low phosphorus coatings (2-5% P by weight), medium phosphorus coatings (6-9% P by weight) and high phosphorus coatings (>10.5% P by weight). The processes are done in working tanks with capacity of 2000 L and 3m length
Electroless Nickel-Phosphorus Coating Process Provides
The plating process is based on a redox reaction where a reducing agent, sodium hypophosphite (NaH2PO2)is oxidized and the nickel ions (Ni2+ are reduced at the surface of the material. The process is called autocatalytic because once the first layer of nickel is plated; this acts as a catalyst for the rest of the process. Consequently there is a lineal ratio between the reaction time and the thickness of the coating.
All these characteristics account for the application of the nickel-phosphorus coatings in a variety of industrial sectors as:
SERVICE INFO
| Electroless Nickel Coating Statistics | |
|---|---|
| Tensile Strength (ASTM D1708) | 4000 – 5000 psi |
| Elongation (ASTM D1457) | 50% |
| Impact Strength (ASTM D256) | 13 ft – lb/in |
| Hardness (ASTM D2240) | 60 – 90 HB (shore D) |
| Abrasion Resistance (Tabor) | > 15 mg |
| Coefficient of Friction (ASTM D1894) | .15 – .35 static |
| Dielectric Strength (ASTM D149) | 1400 volts per mil |
| Use Temperature | -100°F to 500°F max |
| Melting Point | n/a |
| Thermal Conductivity | n/a |
| Chemical Resistance (ASTM D543) | Good |
| Salt Spray Resistance (ASTM B117) | Excellent |
| Water Absorption (ASTM D570) | < .03 % |
| Thickness | .0008″ – .002″ |
Range Of Coatings
We provide worldwide quality coatings to various sectors including but not exclusive to industrial, oil & gas, oil-refining, petrochemical, marine, construction, mining, engineering, electronics and the military.
