Nozzle assembly for plasma arc cutting torch

Details Nozzle assembly for plasma arc cutting torch Nozzle assembly for plasma arc cutting torch

1992-10-27

1994-05-03

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912139, 21912151, 219 75, B23K 900, B23K 1000

Patent

active

053089499

ABSTRACT:
A plasma arc torch for cutting metal with the heat of a constricted arc and removing the molten material with a jet of hot ionized gases comprises a nozzle assembly in the torch includes a nozzle base and an insulator with a constricting orifice. The base and insulator are spaced from each other to form a flow path for a coolant such as water. An interference fit between the base and the insulator exerts a radially outward force on the insulator to enable the base and insulator to be assembled and disassembled with a pressing or pulling force in the approximate range of 0.3 to 16.0 pounds.

REFERENCES:
patent: 4891489 (1990-01-01), Bollinger et al.
patent: 4954688 (1990-09-01), Winterfeldt
patent: 5013885 (1991-05-01), Carkhuff et al.
patent: 5124525 (1992-06-01), Severance, Jr. et al.
patent: 5147997 (1992-09-01), Haberman

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