Back to results
US 8,123,146 B2Granted
Wire combustion with increased application rates
AssigneeSulzer Metco (US), Inc.
InventorsDavid Hawley, Ronald J. Molz, James Leach
Life of this patent
Estimating the term…
Abstract
Shaping the feed wire for a combustion wire thermal spray process improves the operating capability of the combustion wire gun through higher feed rates and high operating efficiencies. The efficiency of the wire melting is increased over conventional systems through increasing the surface area of the wire cross section and exposing more of the wire material directly to the burner jets.
Claims18
A combustion wire thermal spray system, comprising:
- a wire feedstock having a cross-sectional surface perpendicular to a feedstock feed direction with a perimeter greater than
- 2
- π
- times a perimeter of a circle with an interior area equal to an interior area of the cross-sectional surface;
- the wire feedstock comprising a single solid gear-shaped wire having rounded convex lobes and rounded concave surfaces arranged between the rounded convex lobes;
- and
- a combustion wire gun comprising a combustion chamber adapted to produce a flame for melting the wire feedstock,
- wherein each rounded concave surface is defined by a first radius and each rounded lobe is defined by a second radius, and the first radius is equal to (1.08 divided by 3.55) times the second radius.
5 more elements
A combustion wire thermal spray system, comprising:
- a wire feedstock having a cross-sectional surface perpendicular to a feedstock feed direction with a perimeter greater than
- 2
- π
- times a perimeter of a circle with an interior area equal to an interior area of the cross-sectional surface;
- the wire feedstock comprising a single solid gear-shaped wire having rounded convex lobes and rounded concave surfaces arranged between the rounded convex lobes;
- and
- a combustion wire gun comprising a combustion chamber adapted to produce a flame for melting the wire feedstock,
- wherein a radius of each rounded concave surface is equal to (0.23 divided by 0.45) times a radius of each rounded lobe.
5 more elements
A combustion wire thermal spray system, comprising:
- a solid wire feedstock having a cross-sectional surface perpendicular to a feedstock feed direction with a perimeter greater than
- 2
- π
- times a perimeter of a circle with an interior area equal to an interior area of the cross-sectional surface;
- the wire feedstock comprising a gear-shaped wire having rounded lobes and inwardly curved surfaces;
- a radius of a respective rounded lobe being larger than a radius of a respective inwardly curved surface;
- and
- a combustion wire gun comprising a combustion chamber adapted to produce a flame for melting the wire feedstock.
5 more elements
Dependencies are inferred from the claim text.