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Use of a saeurekitts as a protection against corrosion for hot media metal surface is exposed to a helicoidal guide, in particular steel surface by a helicoidal guide
Use of a saeurekitts as a protection against corrosion for hot media metal surface is exposed to a helicoidal guide, in particular steel surface by a helicoidal guide
In the operation of a furnace for the production of iron or steel, the air preheater and the pipe communicating the preheater with the furnace are constructed of steel shells lined with an acid-resisting cement, with refractory lining overlying the cement. The acid-resisting cement is composed of quartz sand and refractory material in the form of hollow spheres, silicate binder, and hardener. The spheres are 10 - 40 vol.% of the total volume of quartz sand and spheres.
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