Apparatus and method for a liquid cooled shield for improved piercing performance
摘要:
A shield for a plasma arc torch is configured to protect consumable components of the plasma arc torch from splattering molten metal. The shield includes a generally conical unitary body defining (i) an interior surface to form a gas flow path with an outer surface of an adjacent nozzle of the plasma arc torch, and (ii) an exterior surface. The body includes (i) a distal first portion defining an exit orifice; and (ii) a proximal second portion formed of a flange sharing a common surface with the distal first portion. The shield also includes a seal assembly disposed on the common surface to retain the liquid coolant flow along the proximal second portion.
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