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Solutions for gas nitriding and nitrocarburising of metals · for gas nitriding and nitrocarburising of metals ... The gas nitriding heat treatment of low alloy ... cast irons is

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  • ALNAT NSolutions for gas nitriding and nitrocarburisingof metals

    www.airliquide.com

    The gas nitriding heat treatment of low alloy steels, carbon steels andcast irons is performed under ALNAT N Nitrogen-Ammonia-NitrousOxide or Carbon Dioxide atmospheres with major benefits:

    Excellent wear of the nitrided layer Increased productivity thanks to a highly reactive atmosphere Adjustable nitriding potential with a high speed of treatment Upgrade of your process performance Easy implementation on conventional atmosphere furnaces Minimal capital expenses and maintenance Furnace safety management with Nitrogen

    FICHES AIR LIQUIDE ALNAT N:FICHES AIR LIQUIDE A4 28/04/08 14:36 Page 1

  • ALNAT Expertise to qualify the performance of your furnaces ALNAT Control to monitor the nitrogen potential ALNAT Performance:

    Complete process control to optimize the quality and flow-rate of theatmosphere delivered to your furnaces

    On-line atmosphere analysis (H2/NH3) Telemetry for remote monitoring and reporting

    A high quality atmosphere

    Adapted to high specifications nitriding process

    Customized installation

    Extended ALNAT offers

    04/08 - Expert Graphic - Photo credits: S. Braun, Air Liquide, Multigas - ALNAT is a trademark of the Air Liquide Group.

    Based on the accurate mixing of high purity nitrogen and ammonia with or withoutnitrous oxide or carbon dioxide, ALNAT N gives a constant atmospherescomposition and produces reproducible results on parts.Nitrous Oxide or Carbon Dioxide acts as an activator of the nitriding reaction. This process has quick kinetics and an adjustable nitriding potential.

    ALNAT N favors monophase nitride layers with less brittleness and better adherence than conventionnal gas nitriding

    For nitriding and nitrocarburising at 520C-570C In pit-, pot-, batch-type furnaces and pusher type furnaces Nitrogen atmosphere purge for furnace safety

    Engineered and designed to your specific needs ALNAT N panel supply for multi-furnace or single furnace Dedicated ammonia technology with regulated flow-rates Quick installation and easy start-up Preventive and corrective Air Liquide maintenance Consulting and training on gas handling and safety Automatic nitrogen safety pipeline and procedures

    ALNAT N

    FICHES AIR LIQUIDE ALNAT N:FICHES AIR LIQUIDE A4 28/04/08 14:36 Page 2

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