|
Monel
Monel is a group of alloys of nickel (from 52 to 67%) and copper, with small amounts of iron, manganese, carbon, and silicon. Monel is not a cupronickel alloy because it has less than 60% copper. Stronger than pure nickel, Monel alloys are resistant to corrosion by many aggressive agents, including rapidly flowing seawater. They can be fabricated readily by hot- and cold-working, machining, and welding. Monel was created in 1905 by Robert Crooks Stanley, who at the time worked at the International Nickel Company (Inco). Monel alloy 400 is a binary alloy of the same proportions of nickel and copper as is found naturally in the meteoritic nickel ore from the Sudbury (Ontario) mines and is therefore considered a puritan alloy. Monel was named after company president Ambrose Monell, and patented in 1906. One L was dropped, because family names were not allowed as trademarks at that time. The trademark was registered in May 1921, and the name is now a trademark of Special Metals C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambrose Monell
Ambrose Monell (1873 – May 2, 1921) was an American industrialist and military commander. He served as the first president of the International Nickel Company and was the namesake of the alloy known as Monel. Biography Monell was born in 1873 to New York City Civil Court Justice Ambrose Monell. He was the grandson of New York Surrogate's Court Chief Justice Claudius L. Monell. Expected to be a lawyer, Monell entered instead Columbia School of Mines, earning his degree in 1896. Monell became an instructor at the School of Mines upon graduation. He later joined Carnegie Steel Company as a metallurgical engineer and quickly rose through the ranks to become the company's Chief Metallurgical Engineer and assistant to the president by 1902. He was named one of the "Carnegie Boys" by Quentin R. Skrabec, Jr. as having made an impact on American industry. That year, he was named president of the newly incorporated International Nickel Company. Monell received a patent on January 30, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Crooks Stanley
Robert Crooks Stanley (August 1, 1876 – February 12, 1951) was an American industrialist and mining engineer. He was chairman and president of International Nickel Company and discovered the alloy Monel. Biography Stanley was born on August 1, 1876 in Little Falls, New Jersey. He attended Montclair High School as a star football player and graduated from the Stevens Institute of Technology in 1899 and received his engineer of mines degree from Columbia School of Mines in 1901. Stanley joined International Nickel (Inco) in 1901, serving as general superintendent from 1914 to 1918, and as vice president from 1918 to 1922. He then served as president from 1922 to 1950 and was chairman from 1937 until his death. Under Stanley, nickel reached worldwide importance, and the company saw rapid growth after World War I, producing 75% of the world's nickel. He also discovered Monel in 1905 and conceived the process of producing the alloy from ore. Stanley was also a director of United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vale Limited
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, New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Metals Corporation
Special Metals Corporation (SMC) is an American supplier of special refractory alloys and is headquartered in New Hartford, New York, United States. The company has operations in Huntington, West Virginia; Dunkirk, New York; Burnaugh, Kentucky; Elkhart, Indiana and Hereford, England. SMC's trademarks include Inconel, Incoloy, Monel, Nimonic, and Udimet. History "In 1952, a predecessor of Special Metals pioneered the melting technology that led to the practical development of the superalloys that are the critical materials used in the 'hot' section of modern jet engines." At year end of 1996, SMC had "45 million pounds of vacuum induction melting capacity", 590 employees, was incorporated in Delaware and was managed by Don Muzyka. SMC acquired Inco Alloys International from Inco in 1998 at the same time as it sold US$125 million of preferred stock to Titanium Metals Corporation. In 2006, Special Metals was acquired by Precision Castparts Corporation of Portland, Oregon, US ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nickel
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere. Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores. Use of nickel (as natural meteoric nickel–iron alloy) has been traced as far back as 3500 BCE. Nickel was first isolated and classified as an e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupronickel
Cupronickel or copper-nickel (CuNi) is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. The copper content typically varies from 60 to 90 percent. (Monel is a nickel-copper alloy that contains a minimum of 52 percent nickel.) Despite its high copper content, cupronickel is silver in colour. Cupronickel is highly resistant to corrosion by salt water, and is therefore used for piping, heat exchangers and condensers in seawater systems, as well as for marine hardware. It is sometimes used for the propellers, propeller shafts, and hulls of high-quality boats. Other uses include military equipment and chemical, petrochemical, and electrical industries. Another common 20th-century use of cupronickel was silver-coloured coins. For this use, the typical alloy has 3:1 copper to nickel ratio, with very small amounts of manganese. In the past, true silver coins were debased with cupronickel, such as coins of the pound sterling from 1947 onwar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkylation Unit
An alkylation unit (alky) is one of the conversion processes used in petroleum refineries. It is used to convert isobutane and low-molecular-weight alkenes (primarily a mixture of propene and butene) into alkylate, a high octane gasoline component. The process occurs in the presence of an acid such as sulfuric acid (H2SO4) or hydrofluoric acid (HF) as catalyst. Depending on the acid used, the unit is called a sulfuric acid alkylation unit (SAAU) or hydrofluoric acid alkylation unit (HFAU). In short, the alky produces a high-quality gasoline blending stock by combining two shorter hydrocarbon molecules into one longer chain gasoline-range molecule by mixing isobutane with a light olefin such as propylene or butylene from the refinery's fluid catalytic cracking unit (FCCU) in the presence of an acid catalyst. Since crude oil generally contains only 10-40% of hydrocarbon constituents in the gasoline range, refineries typically use an FCCU to convert high molecular weight hydrocarbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guardian Building Art Deco Gate, Detroit
Guardian usually refers to: * Legal guardian, a person with the authority and duty to care for the interests of another * '' The Guardian'', a British daily newspaper (The) Guardian(s) may also refer to: Places * Guardian, West Virginia, United States, an unincorporated community in Webster County * Guardian Nunatak, a landform on Antarctica's Dufek Coast * Guardian Rock, an islet off the Antarctic Peninsula in Bigourdan Fjord * Guardian telephone exchange, Manchester, England * Wonder Mountain's Guardian, a roller coaster at Canada's Wonderland, Vaughan, Ontario People * GuardiaN (Ladislav Kovács; born 1991), Slovak professional video-game player * Angel Guardian (born 1998), Filipina actress and singer * Don Guardian (born 1953), mayor of Atlantic City, New Jersey, United States Arts, entertainment, and media Fictional entities * Guardian (comics), characters from various comics * Guardian (DC Comics), a DC Comics superhero * Guardian (''Highlander''), a characte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: *Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into ''static friction'' ("stiction") between non-moving surfaces, and ''kinetic friction'' between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities (see Figure 1). *Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other. *Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. *Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body. *Internal friction is the force resisting motion between the elements making up a so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Density
Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematically, density is defined as mass divided by volume: : \rho = \frac where ''ρ'' is the density, ''m'' is the mass, and ''V'' is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate – this quantity is more specifically called specific weight. For a pure substance the density has the same numerical value as its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium and iridium are the densest known elements at standard conditions for temperature and pressure. To simplify comparisons of density across different s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minesweeper (ship)
A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of the naval mine dates to the Ming dynasty.Needham, Volume 5, Part 7, 203–205. Dedicated minesweepers, however, only appeared many centuries later during the Crimean War, where they were deployed by the British. The Crimean War minesweepers were rowboats trailing grapnels to snag mines. Minesweeping technology picked up in the Russo-Japanese War, using aging torpedo boats as minesweepers. In Britain, naval leaders recognized before the outbreak of World War I that the development of sea mines was a threat to the nation's shipping and began efforts to counter the threat. Sir Arthur Wilson noted the real threat of the time was blockade aided by mines and not invasion. The function of the fishing fleet's trawlers with their trawl gear was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galvanic Corrosion
Galvanic corrosion (also called bimetallic corrosion or dissimilar metal corrosion) is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte. A similar galvanic reaction is exploited in primary cells to generate a useful electrical voltage to power portable devices. This phenomenon is named after Italian physician Luigi Galvani (1737-1798). Overview Dissimilar metals and alloys have different electrode potentials, and when two or more come into contact in an electrolyte, one metal (that's more reactive) acts as anode and the other (that's less reactive) as cathode. The electropotential difference between the reactions at the two electrodes is the driving force for an accelerated attack on the anode metal, which dissolves into the electrolyte. This leads to the metal at the anode corroding more quickly than it otherwise would and corrosion at the cathode being inhibited. The presenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
