Marine
Corrosion is the marine industry's biggest enemy. Bearing seats, saddles, flanges, O-ring grooves, pump impellers and end-bell housings are all common marine applications — and scored hydraulic equipment, cylinder walls, valves, shafts and bearing fits have all been salvaged by the brush plating process.
Typical components
- Propeller shafts and rudder stocks
- Stern tubes and bearing seats
- Pump impellers and end-bell housings
- Hydraulic cylinders and valves
- Flanges and O-ring grooves
Why brush plating works here
- Salt-water pitting filled with copper heavy build-up and polished smooth
- Hard nickel topcoats (up to 54 Rc) for corrosion protection and hard surfacing
- Repairs completed on-board or dockside — faster than disassembly and machining
Corrosion: The Marine Industry's Biggest Problem
Corrosion on components in the marine industry is a major problem. Shown here is a seal area on a large generator from an ocean liner — the area had become grooved and pitted from exposure to salt water and harsh environments. The stator on the shaft is over 11 feet in diameter, and there was no available lathe to machine the corroded area without removing the stator.
Canadian Metal-Ad Corporation was called in to fill in the pitting and re-size the shaft back to its original tolerances. The pitting was filled with a copper heavy build-up and polished to a smooth finish. For corrosion protection and hard surfacing, a .005" build-up of 54 Rc nickel was deposited on top of the copper. The entire repair was completed in less time than it would have taken to remove the stator.
Have a marine repair?
Send us the drawings and photos — we'll respond with a plan and a quote.