Multi-purpose, multi-transfer, multi-position shielding gas for arc welding
AssigneeAir Products and Chemicals, Inc.
InventorsClaude Raymond Demers, Guy LeHouillier
Life of this patent
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Abstract
A shielding gas composition and method of using the shielding gas in gas metal arc welding or flux cored are welding, or composite cored arc welding. The gas is a mixture of argon, helium and carbon dioxide blended to facilitate metal transfer in any position for all the named processes.
Claims3
In a flux cored arc welding process wherein an arc is maintained between a continuous filler metal electrode consisting essentially of a metal enclosing fluxing materials and a weld pool the improvement comprising:
- shielding said arc with a gas mixture consisting essentially of 68% by volume argon, 20% by volume helium and 12% by volume carbon dioxide.
In composite cored arc welding process wherein an arc is maintained between a welding electrode and a base metal the improvement comprising shielding said arc with a gas mixture consisting essentially of 68% by volume argon, 20% by volume helium and 12% by volume carbon dioxide.
Dependencies are inferred from the claim text.