Torch for thermal spraying of surface coatings, and coatings obtained thereby
AssigneeTurbocoating S.P.A.
InventorsNelso Antolotti, Andrea Scrivani, Michele Scartazza, Gabriele Rizzi
Life of this patent
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Abstract
A torch (1) for thermal spraying of surface coatings, of the type that comprises a head (3) and a bracket (2) for the head (3), in which the head (3) pivots relative to the bracket (2). The invention also relates to the coatings obtained using the torch, whether of polymer, metal or ceramic materials, on any substrate coated thereby, whether of polymer, metal or ceramic or composite materials. The invention is applicable to different types of thermal spray torches, using plasma spray, combustion spray, High Velocity Oxygen Fuel (HVOF), or Low Velocity processes.
Claims16
A torch (1) configured for thermal spraying of surface coatings, comprising:
- a head (3) in which an electric arc is struck between a cathode tip and an inside of an anode for plasma generation, the cathode tip and the anode both being internally water cooled, the head (3) comprising a delivery unit (20), and conduits are provided on said delivery unit (20) for connection with corresponding delivery and outlet pipes (7, 8), which are configured to be connected with cavities for water circulation of the head (3);
- a bracket (2) for supporting the head (3), said head (3) pivots relative to the bracket (2), the bracket being connected to a guide arm;
- and
- two side plates (4) joining the head (4) and the bracket (2) together, the plates (4) being welded to the bracket (2) and each plate (4) having a hole for connection with a corresponding part of the head (3) so that the head (4) can pivot relative to the bracket (2), wherein
- said delivery unit (20) has housings formed therein for connection with joints (11) of the delivery (7) and outlet (8) pipes of the cooling water circuit and each of said housings comprises a gasket for watertight connection with the corresponding joint, and
- a center of rotation of the head (3) relative to the bracket (2) passes through an axis of the holes (5) not being coaxial with the an axis of the joints (11).
Dependencies are inferred from the claim text.