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Kaldo Converter
A Kaldo converter (using the ''Kaldo process'' or ''Stora-Kaldo process'') is a rotary vessel oxygen based metal refining method. Originally applied to the refining of iron into steel, with most installations in the 1960s, the process is (2014) used primarily to refine non ferrous metals, typically copper. In that field, it is often named TBRC, or Top Blown Rotary Converter. History and description Steel production file:Affinage convertisseur Kaldo.svg, lang=en, upright=1.8, Evolution of chemical composition and temperature of the liquid steel, during the blowing in a Kaldo converter. The iron content is linked with the slag composition, the others elements are taken in the metal. The name "Kaldo" is derived from Prof. Bo Kalling, and from the Domnarvets Jernverk (''Stora Kopparbergs Bergslag'' subsidiary) both key in the development of the process. Research into the use of a stirring to promote mixing, and therefore rate of conversion was investigated from the 1940s, and investig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Affinage Convertisseur Kaldo
Cheese ripening, alternatively cheese maturation or affinage, is a process in cheesemaking. It is responsible for the distinct flavour of cheese, and through the modification of "''ripening agents''", determines the features that define many different varieties of cheeses, such as taste, texture, and body. The process is "characterized by a series of complex physical, chemical and microbiological changes" that incorporates the agents of "bacteria and enzymes of the milk, lactic culture, rennet, lipases, added moulds or yeasts, and environmental contaminants". The majority of cheese is ripened, except for fresh cheese. History Cheese ripening was not always the highly industrialised process it is today; in the past, cellars and caves were used to ripen cheeses instead of the current highly regulated process involving machinery and biochemistry. Some cheeses still are made using more historical methods, such as the blue cheese Roquefort, which is required to be ripened in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockerill-Ougrée-Providence à Marchienne-au-Pont
Forges de la Providence was a Belgian steel producing company based in the Hainaut region around Charleroi. Founded as ''Société Anonyme des laminoirs, forges, fonderies et usines de la Providence'' the company had three steel production sites at Marchienne-au-Pont in Belgium, and Réhon and Hautmont in France. The company was independent until 1966 when it became part of the Cockerill-Ougrée, briefly being absorbed into '' Thy-Marcinelle et Monceau'' before becoming part of Cockerill-Sambre. In the 1980s the French steel plants closed, the Belgian plant continued to operate until 2008, becoming part of the Duferco group as Carsid at the beginning of the 21st century. Coke and blast furnace production CARSID plant closed in 2008 due to an economic downturn, and did not restart - the plant was closed in 2012. Company history In 1836 the Englishman Thomas Bonehill built puddling furnaces for the Puissant and Licot de Nîmes families; in 1838 the company ''Société Anonyme de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steelmaking
Steelmaking is the process of producing steel from iron ore and carbon/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (the most important impurity) are removed from the sourced iron, and alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of steel. Limiting dissolved gases such as nitrogen and oxygen and entrained impurities (termed "inclusions") in the steel is also important to ensure the quality of the products cast from the liquid steel. Steelmaking has existed for millennia, but it was not commercialized on a massive scale until the mid-19th century. An ancient process of steelmaking was the crucible process. In the 1850s and 1860s, the Bessemer process and the Siemens-Martin process turned steelmaking into a heavy industry. Today there are two major commercial processes for making steel, namely basic oxygen steelmaking, which has liquid pig-iron from the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AJAX Furnace
The AJAX furnace was a modification of the tilting open hearth furnace that used blown oxygen to improve productivity. The process was used in the UK during the 1960s at a time of transition from open hearth to oxygen based steel making. History and description The AJAX process invented in 1957, and named after its originator, Albert Jackson. The process involved modifying an open hearth furnace to use oxygen instead of air. The use of oxygen in the open hearth negated the need for an external fuel source, as with Linz-Donawitz converters. The furnaces were used at the United Steel Companies at the Appleby-Frodingham steelworks near Scunthorpe, Lincolnshire, England as an alternative to installing completely new oxygen based steelmaking plant. In operational practice at Appleby-Frodingham the design initially increased productivity by 38%, as well as reducing scrap requirement from per . Later productivity increases were from 70% to 100%, with conversion costs reduced to 68%. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metallo-Chimique
Metallo-Chimique International N.V., based in Beerse, Belgium, also described simply as Metallo, is a privately held metals and mining company. The company was incorporated in 1919. Metallo now specializes in the recycling and refining of metalliferous materials (e.g. copper, tin, lead, zinc, as well as cable, waste from the electronics sector, car catalysts, and the like), to produce pure tin and lead, electrolytic copper, copper anodes and solder Solder (; NA: ) is a fusible metal alloy used to create a permanent bond between metal workpieces. Solder is melted in order to wet the parts of the joint, where it adheres to and connects the pieces after cooling. Metals or alloys suitable ... from a wide variety of scrap and residues. The company produces approximately 10,000 tons of cu-anodes, 1,500 tons of lead-ingots and 800 tons of tin-ingots per month. It is the leading producer of pure tin in Europe. All Metallo-Chimique final products are made out of scrap and by-pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inco
Vale Canada Limited (formerly Vale Inco, CVRD Inco and Inco Limited; for corporate branding purposes simply known as "Vale" and pronounced in English) is a wholly owned subsidiary of the Brazilian mining company Vale. Vale's nickel mining and metals division is headquartered in Toronto, Ontario, Canada. It produces nickel, copper, cobalt, platinum, rhodium, ruthenium, iridium, gold, and silver. Prior to being purchased by CVRD (now Vale) in 2006, Inco was the world's second largest producer of nickel, and the third largest mining company outside South Africa and Russia of platinum group metals. It was also a charter member of the 30-stock Dow Jones Industrial Average formed on October 1, 1928. Pre-Vale history Founding of Inco The company was founded following the discovery by blacksmith Tom Flanagan in Copper Cliff Ontario of chalcopyrite deposits, while the Canadian Pacific Railroad was being built. Initially, ore was shipped for smelting to a plant in Constable Hook, N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usinor
Usinor was a French steel making group formed in 1948. The group was merged with Sacilor in 1986, becoming Usinor-Sacilor and was privatised in 1995, and renamed Usinor in 1997. In 2001 it merged with Arbed (Luxembourg) and Aceralia (Spain) to form the European company Arcelor, which became part of ArcelorMittal in 2006. History Sacilor and predecessors In 1704 Jean Martin de Wendel bought an ironworks in Hayange, Lorraine (region), Lorraine in north-eastern France. Over the next one hundred years industrial production grew, and, in 1822 the first coke fired blast furnace in France was constructed. Further growth occurred under de Wendel family ownership in the next century; in 1850 approximately 20,000 tons of iron and cast iron each were produced, by 1869 this had increased 15 blast furnaces and a production of well over 100,000 tons of cast iron and iron each. Production included rails, bars, sheet, tin and wire. The company was split as a result of the Alsace-Lorraine region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sollac
Sollac (Société Lorraine de Laminage Continu) was a French steel company formed in December 1948 as a cooperative to produce steel rolls in Lorraine from steel provided by several other companies. There were various changes of ownership during the years that followed. In 1970 the company, under pressure from the French government, began to develop a large new continuous strip mill in the south of France. The French steel industry soon went into crisis, with excess capacity and declining demands from automobile manufacturers and the construction industry. Sollac became a subsidiary of Usinor in 1987, responsible for all flat products. In 2002 Usinor became part of Arcelor, which in turn was merged into ArcelorMittal in 2006. Formation After World War II (1939–45) the United States wanted to ensure that the French steel industry could compete effectively with the Ruhr. Usinor (Union Sidérurgique du Nord de la France) was formed in 1948 by a merger of Denain-Anzin, founded in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharon Steel Corporation
Sharon ( he, שָׁרוֹן ''Šārôn'' "plain") is a given name as well as an Israeli surname. In English-speaking areas, Sharon is now predominantly a feminine given name. However, historically it was also used as a masculine given name. In Israel, it is used both as a masculine and a feminine given name. Etymology The Hebrew word simply means "plain", but in the Hebrew Bible, is the name specifically given to the fertile plain between the Samarian Hills and the coast, known (tautologically) as Sharon plain in English. The phrase "rose of Sharon" (חבצלת השרון ''ḥăḇaṣṣeleṯ ha-sharon'') occurs in the KJV translation of the Song of Solomon ("I am the rose of Sharon, the lily of the valley"), and has since been used in reference to a number of flowering plants. Unlike other unisex names that have come to be used almost exclusively as feminine (e.g. Evelyn), ''Sharon'' was never predominantly a masculine name. Usage before 1925 is very rare and was apparen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stanton Iron Works
Stanton may refer to: Places United Kingdom ;Populated places * Stanton, Derbyshire, near Swadlincote * Stanton, Gloucestershire * Stanton, Northumberland * Stanton, Staffordshire * Stanton, Suffolk * New Stanton, Derbyshire * Stanton by Bridge, Derbyshire * Stanton by Dale, Derbyshire * Stanton Chare, Suffolk * Stanton Drew, Bristol * Stanton Fitzwarren, Wiltshire * Stanton Harcourt, Oxfordshire * Stanton Hill, Nottinghamshire * Stanton in Peak, Derbyshire * Stanton Lacy, Shropshire * Stanton Lees, Derbyshire * Stanton Long, Shropshire * Stanton Moor, Derbyshire * Stanton Prior, Somerset * Stanton St Bernard, Wiltshire * Stanton St John, Oxfordshire * Stanton St Quintin, Wiltshire * Stanton under Bardon, Leicestershire * Stanton upon Hine Heath, Shropshire * Stanton Wick, Somerset United States ;Populated places * Stanton, California * Stanton, Delaware * Stanton, Iowa * Stanton, Kansas * Stanton, Kentucky * Stanton, Michigan * Stanton, Mississippi * Stanton, Miss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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