Welding torch and shield

摘要

A welding torch ( 10 ) for welding on a component has an electrode ( 12 ) within a nozzle ( 14 ) through which a flow of gas passes. A shield ( 20 ) defines an enclosure ( 22 ) around the nozzle ( 14 ). Means are provided for supplying weld filler material ( 18 ) into the vicinity of the electrode ( 12 ) through the shield ( 20 ). One end of the shield ( 20 ) is attached to the welding torch ( 10 ). The other end of the shield ( 20 ) is open and extends towards the component ( 16 ). An inflatable seal ( 28 ) is mounted on the end of the shield ( 20 ) to seal between the shield ( 20 ) and the component ( 16 ).