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In metallurgy, non-ferrous metals are metals or alloys that do not contain iron (allotropes of iron, ferrite, and so on) in appreciable amounts.. Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), [1] non-magnetic properties or resistance to corrosion (e.g. zinc). [2]
The hull has been vandalized and much of the general cargo that the ship carried has been removed by hunters of salvage and souvenirs over the years. In the 1970s divers dynamited her hull to search for non-ferrous metal. [11] The cargo included crockery, rolls of linoleum, champagne and red wine.
Non-ferrous extractive metallurgy is one of the two branches of extractive metallurgy which pertains to the processes of reducing valuable, non-iron metals from ores or raw material. [ 1 ] [ 2 ] [ 3 ] Metals like zinc , copper , lead , aluminium as well as rare and noble metals are of particular interest in this field, [ 1 ] while the more ...
The company also operates its own steel mill in Cape Town manufacturing high-specification steel reinforcing bar for the local construction industry. [8] In 1970, the restored body of a World War II Spitfire aircraft was mounted at the company’s Salt River, Cape Town premises where it became a world-famous landmark. In 1988, the Spitfire had ...
The specific study of the non-ferrous metals used in past. Gold, silver and copper were the first to be used by ancient humans. Gold and copper are both found in their 'native' state in nature, and were thus the first to be exploited as they did not need to be smelted from their ores. They could be hammered into sheets or decorative shapes.
South Africa produces more platinum and similar metals than any other nation. [22] In 2005, 78% of the world's platinum was produced in South Africa, along with 39% of the world's palladium. Over 163,000 kilograms (5,200,000 ozt) of platinum was produced in 2010, generating export revenues of US$3.82 billion. [24]
An eddy current separator (ECS) is a machine that uses a powerful magnetic field to separate non-ferrous metals from an input waste or ore stream. The device makes use of eddy currents to effect the separation. Non-ferrous metals typically separated by an ECS include aluminum, copper and die-cast metals. [1]
Established in 1972 to study non-ferrous metals, it played an important role during the development of Pakistan's clandestine nuclear weapons program. [3] [4] Its activities include research into non-ferrous and ferrous metals, materials science as well as testing, accreditation and quality assurance. [5]