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Aeronautics
Air Liquide in the value chain

Inert gas blanketing (SPAL)

We supply industrial gases for clean melting processes and casting applications. Air Liquide’s patented EGAL process uses liquid cryogenics, i.e. argon or nitrogen, to reduce interactions between molten metal and atmospheric gases such as oxygen, nitrogen and water vapor during air melting operations. This SPAL technology allows steel manufacturers to producing castings with fewer defects, enhanced mechanical properties and lower rejects.

Air Liquide offers SPAL, Air Liquide’s technology family of inert blanketing processes. These patented processes include EGAL, SBAL and VRAL.

Gases

Why choose us?

  • 01

    High quality gas solutions

    Our gases are compatible with new lightweight composite materials used in the fabrication of components and the upkeep of aircraft.

  • 02

    Reliability

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

  • 03

    World-class expertise

    As a global company with an international network of experts that specialize in heat treatment, welding and curing, Air Liquide is ready to support your development and innovation.

  • 04

    Sustainable solutions

    We are deeply committed to sustainable development. Our solutions for the aeronautics industry have been developed with the environment and regulatory compliance at top of mind.