Dissociated Ammonia Atmospheres
James Hogg Ammonia Systems ammonia crackers are used to create a dissociated ammonia atmosphere, i.e free hydrogen and nitrogen, which is used in a variety of heat treatment applications where protective atmospheres are required:
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Bright annealing and brazing of high alloy steels, magnetic steels and rare metals
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Bright tempering of castings
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Sintering of powders
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Nitriding of steels
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Carbo-nitriding
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Any application where it is absolutely necessary to avoid surface oxidation
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As a substitute for exothermic and endothermic-base atmospheres when a smaller output is acceptable
Advantages of Dissociated Ammonia Atmospheres
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High quality
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High purity
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Nitrogen and Hydrogen can be used for any purpose without further treatment
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Transportation and handling of ammonia cylinders is not difficult
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Ammonia contains no oxygen
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Ammonia liquid and vapour are lighter than water and air
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The Hydrogen and Nitrogen produced by decomposition is cheaper than other methods
