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Frederick Carl Siemens
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17,788. Siemens, F. C. Aug. 3. Crucible furnaces.-In gas-fired crucible furnaces for melting steel, the material in which the crucible is embedded, or upon which it is supported, is formed of an incombustible refractory material which does not form a slag with the material of the crucible or other substance present. When basic materials are present, calcined magnesite, brucite, periclase, or calcined dolomite are suitable. When acid constituents are present; some form of silica or siliceous material may be used. For lower temperatures basic slag and bauxite are suitable.
GB190717788D1907-08-031907-08-03Improvements in Gas-fired Crucible Furnaces for Melting Steel.
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