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LIQUID COOLED SHIELD FOR IMPROVED PIERCING PERFORMANCE

  • US 20090230097A1
  • Filed: 03/12/2008
  • Published: 09/17/2009
  • Est. Priority Date: 03/12/2008
  • Status: Active Grant
First Claim
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1. A shield for a plasma arc torch that pierces and cuts a metallic workpiece producing a splattering of molten metal directed at the torch, the shield protecting consumable components of the plasma arc torch from the splattering molten metal, the shield comprising:

  • a body;

    a first surface of the body configured to be contact-cooled by a gas flow;

    a second surface of the body configured to be contact-cooled by a liquid flow; and

    a seal assembly configured to be secured to the body and disposed relative to the second surface configured to retain the liquid flow contact-cooling the second surface.

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