Invention Grant
US08212173B2 Liquid cooled shield for improved piercing performance 有权
液体冷却防护罩,提高穿孔性能

Liquid cooled shield for improved piercing performance
Abstract:
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 can include 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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