13 SEP 12
/ Battery Charging Systems / Welding Technology / Solar Electronics
INERT GASES
INERT GASES INERT GASES
INERT GASES
INERT MIXED GASES
INERT MIXED GASESINERT MIXED GASES
INERT MIXED GASES
Argon
Ionizes easily, deep fusion penetration, finger-shaped, low cost to manufacture (filtered out of ambient air⁄.
Helium
Difficult to ionize; high heat conductivity; deep, wide penetration; fluid weld pool; good wetting; more expensive
than argon (filtered out of natural gas⁄
Argon-Helium Mix
The advantages/disadvantage of each gas increases and decreases in relation to the proportion within the mix.
ACTIVE GASES
ACTIVE GASES ACTIVE GASES
ACTIVE GASES
ACTIVE MIXED GASES
ACTIVE MIXED GASESACTIVE MIXED GASES
ACTIVE MIXED GASES
CO
2
Reacts with the material, deeper reduced-pore fusion penetration, tends towards spattering, cheap to manufacture
Argon CO2
Combines advantages of its components, the most used gas combination for unalloyed steel and chrome-nickel
Argon Oxygen
Arc more stable, reduced surface tension of weld pool, pore-sensitive, Oxygen 8% maximum
Gas Characteristics
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Weld Process
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