Composite Consumables for a Plasma Arc Torch

摘要

An electrode is provided for use in a plasma arc torch. The electrode includes a body having an elongated forward portion and a ring-shaped aft portion. The forward portion is configured to provide an electrically conductive path from the distal end to the proximal end. The forward portion comprises a first conductive material. The ring-shaped aft portion, defining a hollow center, is configured to substantially surround a portion of the forward portion when the forward portion is located inside of the hollow center. The aft portion includes a pneumatic reaction region for receiving a biasing flow of a pressurized gas. The aft portion comprises a second material. In some embodiments, the first conductive material is the same as the second material.

主权项

1. An electrode for use in a plasma arc torch, the electrode comprising:
an elongated forward portion, defining a proximal end and a distal end, configured to provide an electrically conductive path from the distal end to the proximal end, the forward portion comprising a first conductive material; a ring-shaped aft portion, defining a hollow center, configured to substantially surround a portion of the forward portion when the forward portion is located inside of the hollow center, wherein (1) the aft portion includes a pneumatic reaction region for receiving a biasing flow of a pressurized gas and (2) the aft portion comprises a second material; and an emitter disposed in the proximal end of the forward portion.