Plasma torch with corrosive protected collimator

Details Plasma torch with corrosive protected collimator Plasma torch with corrosive protected collimator

2008-03-11

2008-03-11

Paschall, Mark (Department: 3742)

Electric heating

Metal heating

By arc

C219S121590, C219S121520, C219S075000

Reexamination Certificate

active

07342197

ABSTRACT:
To protect the collimator of a transferred plasma arc torch from premature failure due to corrosion, an anti-corrosive covering is applied on the exposed face surface and a portion of the inner exit bore of the collimator. The specification describes several methods for producing the collimator for a plasma torch having an anti-corrosive coating or cladding on the exposed surfaces thereof, including electroplating, electroless plating, flame spraying, plasma spraying, plasma transferred arc, hot isostatic pressing and explosive cladding.

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