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In April 1852, Roach and his three partners purchased for the sum of $4,700 ($172,133) a small New York ironworks known as the Etna Iron Works, which had recently fallen into receivership. The ironworks, located at 102 Goerck Street, occupied a 40-by-100-foot (12 m × 30 m) property and consisted of a small foundry and some raw materials. [3]
The hobbyist starts by constructing a small foundry capable of melting silicon-aluminum and zinc alloys from recycled automotive parts. Then green sand castings are used to make a metal lathe. The lathe is the first machine built since it can be used to help build itself. The lathe and foundry are then used to make more complicated machine tools.
In 1855, the company used its cupola furnace as a small blast-furnace to smelt some iron ore into pig-iron, which was puddled and then sent to the Sydney works of P. N. Russell & Co., where it was used to make anchors, which with some ore samples and other manufactured items—including razors and a carriage axle—were exhibits at the 1855 ...
During the Han dynasty (202 BC – 220 AD), most, if not all, iron smelted in the blast furnace was remelted in a cupola furnace; it was designed so that a cold blast injected at the bottom traveled through tuyere pipes across the top where the charge (i.e. of charcoal and scrap or pig iron) was dumped, the air becoming a hot blast before ...
In a blast furnace, fuel , ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with oxygen enrichment) is blown into the lower section of the furnace through a series of pipes called tuyeres, so that the chemical reactions take place throughout the furnace as the material falls downward.
Furnace design is a complex process, and the design can be optimized based on multiple factors. Furnaces in foundries can be any size, ranging from small ones used to melt precious metals to furnaces weighing several tons, designed to melt hundreds of pounds of scrap at one time.
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The foundry department had two large travelling cranes, a large and small cupola and an air furnace. There was also a large Siemens melting furnace, for dealing with scrap, scrap and pig iron. It was complete with a steam travelling crane capable of lifting 6.4-tonne (7-short-ton) cast iron moulds and large wrought iron ladles.