摘要:
A process is provided for boriding metals and metal alloys in a fluidized bed at a temperature of from about 580.degree. to about 1300.degree. C. As a boriding agent, there was used a granular material comprising essentially spherical particles having a particle size of from about 0.025 to about 5.00 mm, which granular material was manufactured by spray drying a preferably aqueous suspension or dispersion based on materials that yield boron, and which can contain fillers, extenders and binders.
摘要:
Kiln furniture for supporting ceramic products to be baked in a high-speed baking kiln includes an inorganic fibrous material needled blanket having a plurality of depressions therein, and a plurality of separate basic bodies of a ceramic material mounted in the depressions and forming an upper emplacement surface for supporting the ceramic products.