Process for reducing the nitrogen content in a steel melt comprises pretreating the melt with ammonia before being degassed
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Vessel for vacuum treatment of liquid steel
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Combination lance for treatment of metallurgical melts
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After-burning reaction gases arising during vacuum treatment of steel
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Vacuum-tight reaction vessel with a stuffing box for steel processing
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Slide bolt for melting pots
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Steel-processing vessel having a graphite rod heating means
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Reaction vessel for steel treatment, especially using the vacuum circulation process
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Ladle with heating device
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Air lock tubes for arc electrodes in vacuum melting plant - where each tube has telescopic upper portion with inflatable ring seal surrounding electrode
