fireclay crucible

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• crucible process — Technique for producing cast or tool steel. It was invented in Britain с 1740 by Benjamin Huntsman, who heated small pieces of carbon steel in a closed fireclay crucible placed in a coke fire. This was the first process used in Europe in which… …   Universalium

• hessian crucible — noun Usage: usually capitalized H : a cheap brittle fragile but very refractory crucible composed of the finest fireclay and sand and commonly used for a single heating …   Useful english dictionary

• glass pot — noun : a small fireclay crucible in which are fused the materials for making glass in small scale operations compare tank furnace …   Useful english dictionary

• industrial glass — Introduction       solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …   Universalium

• Refractory — A refractory is a material that retains its strength at high temperatures. ASTM C71 defines refractories as non metallic materials having those chemical and physical properties that made them applicable for structures, or as components of systems …   Wikipedia

• blast furnace — a large vertical furnace for smelting iron from ore, using coke as fuel: designed so as to direct a continuous blast of air through the fuel in order to obtain a high rate of combustion. [1700 10] * * * Vertical shaft furnace that produces liquid …   Universalium