final melting process

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• Melting pot — For other uses, see Melting pot (disambiguation). The image of the United States as melting pot was popularized by the 1908 play The Melting Pot. The melting pot is a metaphor for a heterogeneous society becoming more …   Wikipedia

• Melting point apparatus — A Fisher Johns apparatus A melting point apparatus is a scientific instrument used to determine the melting point of a substance. Some types of melting point apparatuses include the Thiele tube, Fisher Johns apparatus, Gallenkamp (Electronic)… …   Wikipedia

• bloomery process — Process for iron smelting. In ancient times, smelting involved creating a bed of red hot charcoal in a furnace to which iron ore mixed with more charcoal was added. The ore was chemically reduced (see oxidation reduction), but, because primitive… …   Universalium

• zone melting — a process of purifying any of various metals and other materials, as germanium or silicon, by passing it in bar form through an induction coil. Also called zone refining. Cf. cage zone melting. [1955 60] * * * Any of a group of techniques used to …   Universalium

• Claus process — The Claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. First patented in 1883 by the scientist Carl Friedrich Claus, the Claus process has become the industry standard. The… …   Wikipedia

• Solvay process — The Solvay process, also referred to as the ammonia soda process, is the major industrial process for the production of soda ash (sodium carbonate). The ammonia soda process was developed into its modern form by Ernest Solvay during the 1860s.… …   Wikipedia

• Fourcault process — The Fourcault Process is a method of manufacturing flat glass. First developed in Belgium by Emile Fourcault, the process was used globally. Fourcault is an example of a vertical draw process, in that the glass is drawn against gravity in an… …   Wikipedia

• Electron Beam Melting — (EBM) is a type of rapid prototyping for metal parts. It is often classified as a rapid manufacturing method. The technology manufactures parts by melting metal powder layer per layer with an electron beam in a high vacuum. Unlike some metal… …   Wikipedia

• metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium

• 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

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium