basic oxygen process — a high speed method of steelmaking in which oxygen of high purity is blown through an oxygen lance at high velocity onto the surface of a bath containing steel scrap and molten pig iron within a vessel with a basic lining (basic oxygen furnace).… … Universalium
Basic oxygen steelmaking — ( BOS, BOF, Linz Donawitz Verfahren, LD converter ) is a method of steelmaking in which carbon rich molten iron is made into steel. The process is an improvement over the historically important Bessemer process. The LD converter is named after… … Wikipedia
Basic oxygen furnace — A basic oxygen furnace, also known as an LD converter , is the place within an integrated steel mill where molten iron from the blast furnace is changed into liquid steel. LD is short for Linz Donawitz, the names of the two towns in Austria, near … Wikipedia
Bessemer process — Metall. a process of producing steel, in which impurities are removed by forcing a blast of air through molten iron. [1855 60; after H. BESSEMER] * * * Technique for converting pig iron to steel invented by Henry Bessemer in England in 1856 and… … Universalium
copper processing — Introduction use of smelting or leaching, usually followed by electrolytic refining or recovery, to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of copper and of its… … Universalium
Industrial history of the People's Republic of China — Main articles: Economy and economic history of the People s Republic of China. China s industrial sector has shown great progress since 1949, but in the late 1980s it remained undeveloped in many respects. Although the country manufactured… … Wikipedia
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
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
iron processing — Introduction use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a… … Universalium
History of ferrous metallurgy — Iron (material) redirects here. For the chemical element Fe, see Iron. Bloomery smelting during the Middle Ages. The history of ferrous metallurgy began far back in prehistory. The earliest surviving iron artifacts, from the 5th millennium BC in… … Wikipedia
Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… … Wikipedia