Optimized thermal nozzle and method of using same
AssigneeOerlikon Metco (US) Inc.
InventorRonald J. MOLZ
Life of this patent
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Abstract
Nozzle for thermal spray gun, thermal spray gun and method of optimizing nozzle of thermal spray gun. The nozzle includes a central bore comprising a conical bore and a cylindrical bore. The conical bore is delimited by a conical wall surface in a conical bore section, the cylindrical bore is delimited by a cylindrical wall surface in a cylindrical bore section, and the conical bore section and the cylindrical bore section are structured so that heat is removed more rapidly from the conical wall than from the cylindrical wall.
Claims20
A nozzle for a thermal spray gun comprising:
- a central bore comprising a conical bore and a cylindrical bore;
- the conical bore being delimited by a conical wall surface in a conical bore section;
- the cylindrical bore being delimited by a cylindrical wall surface in a cylindrical bore section;
- and
- the conical bore section and the cylindrical bore section being structured so that heat is removed more rapidly from the conical wall than from the cylindrical wall.
A thermal spray gun, comprising:
- a nozzle having a conical bore and a cylindrical bore, wherein the nozzle is structured so that an average surface temperature of the conical bore is at least about 100° C. cooler than an average surface temperature of the cylindrical bore.
A method of cooling a nozzle in a thermal spray gun nozzle having a conical bore and a cylindrical bore, comprising:
- supplying cooling water from a rear of the nozzle to a front of the nozzle to cool wall surface temperatures of the conical bore and a cylindrical bore, wherein the front and rear of the nozzle are structured so that heat is removed more rapidly from a wall surface of the conical bore than from a wall surface of the cylindrical bore.
Dependencies are inferred from the claim text.