Addplate™ and NiPlate™ 777
A COMPOSITE SILICON CARBIDE - MEDIUM PHOSPHOROUS ELECTROLESS NICKEL PLATING PROCESS FOR FRICTIONAL SURFACES
The 777 system is a composite silicon carbide - electroless nickel process designed to deposit a uniform composite nickel-phosphorous alloy with ultra-fine silicon carbide particles onto a great variety of metals, alloys, and non-conductors. The resulting coating has a uniform frictional surface.
The 777 system is available in two packaging options to best meet your needs. The NiPLATE™ option provides the greatest convenience to the user, while the ADDPLATE™ option provides the greatest economy for shipping and use. Both options produce the same properties and quality.
- The NiPLATE™ 777 option is supplied in four liquid concentrates: NiPLATE™ 777 A, 777 B, and 777 D are used for make-up, and NiPLATE™ 777 A, 777 C, and 777 D are used for replenishment.
- The ADDPLATE™ 777 option is supplied in three liquid concentrates: ADDPLATE™ 777 M is used for bath make up with NiPLATE™ 777 D and standard nickel sulfate and sodium hypophosphite commodities, and ADDPLATE™ 777 R is used for replenishment of the bath with NiPLATE™ 777 D and the same standard nickel sulfate and sodium hypophosphite commodities.
Some advantages of the 777 system are:
- Deposits with frictional surfaces
- Corrosion resistance
- High plating rate
- Excellent stability and bath life
- Self-adjusting bath pH
- Ease of use comparable to conventional electroless nickel
The 777 system electroless nickel processes meet or exceed MIL-C-26074D and AMS 2404C.
Typical Deposit Properties:
Phosphorous Content |
6-9% by wt. |
Hardness: |
|
o as plated |
550 VHN100 |
o heat treated @ 400°C for 1 hr. |
1040 VHN100 |
Salt Spray (ASTM-B-117) |
100 hrs. |
Stress |
slightly tensile |
Magnetic Properties |
slightly magnetic |
Deposition rate |
0.6 - 0.8 mil per hour |
Preferred Operating Conditions:
|
Range |
Optimum |
Solution Temperature |
83°- 90°C (180°-198°F) |
87°C(188°F) |
Solution pH |
4.6 - 5.0 |
4.8 |
Bath Loading |
0.3 - 0.7 ft2/gal |
0.5 ft2/gal |
Nickel Metal Concentration |
0.80 - 1.05 oz/gal |
0.95 oz/gal |
H2PO2 Concentration |
5.0 - 5.5 oz/gal |
5.3 oz/gal |
Agitation |
Mechanical or Filtered Air |
|
Consult a Surface Technology, Inc. Sales or Technical Service Representative for further information about this or any of our products and services.
