Boiler Industry Coating Material: 76MXC bond coat under a thermal barrier
Protective Tube
Problem: high temperature corrosion
Solution: 8830 Arc Spray System with ArcJet
Coating Procedure:
Preparation method: Grit blast with aluminum oxide, 40 mesh at 100 psi [690 kPa]
Spray parameters: 175 Amps, 30 volts, 20 lbs [9.07 kg]/hr
Spray Time: 40 minutes
Spray angle: 90ｰ
Coating thickness: .020" [.508 mm]
Preheat temperature: 100ｰF [38ｰC]
Temperature during spray: 400ｰF [204ｰC]
Lathe speed: 550 rpm
Traverse speed: 215 sf/m
Base metal: Heat treated steel
Amount of material used: 6 pounds [2.7 kg] of 76MXC
Finishing Procedure:
Method: none
Finished thickness: .020" [.51 mm]
Sealer used: none
