Coating processes – Spray coating utilizing flame or plasma heat – Inorganic carbon containing coating – not as steel
Patent
1996-05-31
1998-01-13
Bareford, Katherine A.
Coating processes
Spray coating utilizing flame or plasma heat
Inorganic carbon containing coating, not as steel
427446, 427451, 427455, 427456, C23C 406
Patent
active
057076944
ABSTRACT:
A method for reducing oxygen content in metal coatings deposited by gas stabilized plasma spray techniques comprises the following steps. A metal powder is provided. Carbon is adhered and coated to the metal powder and a carbon coated metal powder is formed. A primary gas is provided to a plasma spray gun at a flow rate in the range of about 30-80 liter/min. A carrier gas is also provided to the plasma spray gun at a flow rate in the range of about 4-8 liter/min. The carbon coated metal powder is provided to the plasma gun at a flow rate in the range of about 30-85 gms/min. The plasma spray gun is positioned at a stand-off distance in the range of about 100-175 mm from a substrate. The plasma spray gun is energized with power in the range of about 28-42 kW. The carbon coated metal powder is sprayed onto the substrate and a metal coating having an oxygen content at least 20% by weight less than an oxygen content of the metal powder, is deposited.
REFERENCES:
patent: 4121083 (1978-10-01), Smyth
patent: 5144110 (1992-09-01), Marantz et al.
patent: 5372845 (1994-12-01), Rangawamu et al.
"Sprayforming by High-Power High-Velocity Plasma Spraying", Scholl et al., Fourth National Spray Conference, Pittsburgh, May 1991.
Beardsley M. Brad
Biltgen Gary L.
Bareford Katherine A.
Caterpillar Inc.
Khosla Pankaj M.
LandOfFree
Process for reducing oxygen content in thermally sprayed metal c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for reducing oxygen content in thermally sprayed metal c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for reducing oxygen content in thermally sprayed metal c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-324383