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Select a step where Air Liquide intervenes in your value chain.

Inert gas blanketing (SPAL)

Our SPAL technology helps producers of ferrous and non ferrous products in their melting process to produce castings with fewer defects, enhanced mechanical properties and lower rejects.
The technology uses liquid cryogenics (argon or nitrogen), to reduce interactions between molten metal and atmospheric gases such as oxygen, nitrogen, water vapor, and carbon dioxide during air melting operations.


Equipment for industrial gases

SPAL liquid cryogen sparger and hoses

Gas supply modes