Nozzle assembly for plasma arc cutting torch
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United States of America Patent
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May 3, 1994
Grant Date -
N/A
app pub date -
Oct 27, 1992
filing date -
Oct 27, 1992
priority date (Note) -
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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.
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