Consumable cartridge for a plasma arc cutting system
First Claim
1. A metallic frame for a replaceable, unitary cartridge configured for installation into a plasma arc cutting torch, the metallic frame comprising:
- a first end connected to a nozzle, and a second end configured to mate with an electrode, the metallic frame surrounding and inseparably securing the electrode in electrical isolation from the metallic frame and the nozzle;
a set of flow passages built into the metallic frame, the set of flow passages fluidly connecting an internal surface of the metallic frame and an external surface of the metallic frame, the set of flow passages radially offset to impart a swirling fluid flow pattern to gases flowing therethrough; and
a plasma gas exit orifice for constricting exiting plasma gas, the plasma gas exit orifice included within, or in direct physical communication with, the nozzle, wherein the set of flow passages is oriented toward the plasma gas exit orifice.
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Accused Products
Abstract
The invention features a frame for a plasma arc torch cartridge. The frame includes a thermally conductive frame body having a longitudinal axis, a first end configured to connect to a first consumable component, and a second end configured to mate with a second consumable component. The frame body surrounds at least a portion of the second consumable component. The frame also includes a set of flow passages formed within the frame body. The set of flow passages fluidly connects an internal surface of the frame body and an external surface of the frame body. The set of flow holes is configured to impart a fluid flow pattern about the second consumable component.
201 Citations
11 Claims
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1. A metallic frame for a replaceable, unitary cartridge configured for installation into a plasma arc cutting torch, the metallic frame comprising:
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a first end connected to a nozzle, and a second end configured to mate with an electrode, the metallic frame surrounding and inseparably securing the electrode in electrical isolation from the metallic frame and the nozzle; a set of flow passages built into the metallic frame, the set of flow passages fluidly connecting an internal surface of the metallic frame and an external surface of the metallic frame, the set of flow passages radially offset to impart a swirling fluid flow pattern to gases flowing therethrough; and a plasma gas exit orifice for constricting exiting plasma gas, the plasma gas exit orifice included within, or in direct physical communication with, the nozzle, wherein the set of flow passages is oriented toward the plasma gas exit orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification