Cathode assembly for an electric arc spray apparatus

摘要

A cathode holder (14) includes a channel (36) for the cathode (12) of approximately the same diameter and a channel (42) receives a pressurized jet of plasma gas from a spray gun. The cathode is fixed in the channel by a retention member (16), also removing heat from the cathode during operation of the spray gun. An independent claim is included for a method of retaining a cathode in an electric arc spray apparatus.