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Metals
Air Liquide in the value chain

Inert gas blanketing

Air Liquide’s patented Expanding Gas Air Liquide (EGAL) process, derived from SPAL 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.

Our SPAL technology helps producers of non-ferrous products to melt cleaner metals to produce castings with fewer defects, enhanced mechanical properties and lower rejects.

SPAL, Air Liquide’s technology family of inert blanketing processes, include EGAL and Surface Backfilling Air Liquide (SBAL). Contact us to learn more about these patented processes.

Gases

Why choose us?

  • 01

    Industry leader

    Air Liquide is a leading global supplier of industrial gases that are essential to the metals industry, such as oxygen, nitrogen and argon.

  • 02

    Customizable solutions

    Our teams will work with you to identify the most appropriate and cost-effective gas supply mode based on your purity, flow, volume and safety requirements

  • 03

    Reliability

    Air Liquide gas solutions are reliable, reproducible and in compliance with stringent and ever-evolving regulations

  • 04

    Global presence

    Air Liquide’s global network of metals industry experts serve millions of customers worldwide 

  • 05

    R&D support network

    We rely on our global network of application experts, engineering and research and development teams to provide the optimum solution for a given need