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Onehunga Ironworks
The Onehunga Ironworks was a colonial-era iron smelting and rolling operation at Onehunga, on the Manukau Harbour, (now a suburb of Auckland, New Zealand). It was at one time claimed to be the largest ironworks in the Southern Hemisphere. It is significant, both as the first large scale attempt to exploit New Zealand's iron-sand by Direct reduced iron, direct reduction, and as a precursor of New Zealand Steel, the modern steel industry of New Zealand. The ironworks was located adjacent to the Onehunga railway station#History, original Onehunga railway station. It operated—but not continuously—from 1883 to around 1895. It was partially demolished around 1903 but its brick chimney and some of its other structures were still standing in the late 1960s. Historical context New Zealand's iron-sand resource Vast deposits of iron-sand exist over 480 kilometres of the North Island's coast from Kaipara Harbour down to Whanganui. These iron-sand deposits are rich in the mineral ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onehunga Ironworks 1889 (Pegler, Enos Silvenus, D
Onehunga is a suburb of Auckland in New Zealand and the location of the Port of Onehunga, the city's small port on the Manukau Harbour. It is south of the Auckland CBD, city centre, close to the volcano, volcanic cone of Maungakiekie / One Tree Hill. Onehunga is a residential and light-industrial suburb. There are almost 1,000 commercial and industrial businesses in the area. Onehunga stretches south from Royal Oak, New Zealand, Royal Oak to the northern shore of the Manukau Harbour. To the east are the areas of Oranga and Te Papapa; to the west, Hillsborough, Auckland, Hillsborough. On the southern shore of the Manukau Harbour, and linked to Onehunga by Māngere Bridge (bridges), two bridges, is the suburb of Māngere Bridge (suburb), Māngere Bridge. Geography Onehunga lies on the Auckland isthmus, on the northern shore of Mangere Inlet, an arm of the Manukau Harbour, and just south of the volcanic cone of Maungakiekie / One Tree Hill. The Port of Onehunga, on Manukau Harbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Plymouth
New Plymouth ( mi, Ngāmotu) is the major city of the Taranaki region on the west coast of the North Island of New Zealand. It is named after the English city of Plymouth, Devon from where the first English settlers to New Plymouth migrated. The New Plymouth District, which includes New Plymouth City and several smaller towns, is the 10th largest district (out of 67) in New Zealand, and has a population of – about two-thirds of the total population of the Taranaki Region and % of New Zealand's population. This includes New Plymouth City (), Waitara (), Inglewood (), Ōakura (), Ōkato (561) and Urenui (429). The city itself is a service centre for the region's principal economic activities including intensive pastoral activities (mainly dairy farming) as well as oil, natural gas and petrochemical exploration and production. It is also the region's financial centre as the home of the TSB Bank (formerly the Taranaki Savings Bank), the largest of the remaining non-governm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waikato
Waikato () is a Regions of New Zealand, local government region of the upper North Island of New Zealand. It covers the Waikato District, Waipa District, Matamata-Piako District, South Waikato District and Hamilton, New Zealand, Hamilton City, as well as Hauraki Plains, Hauraki, Coromandel Peninsula, the northern King Country, much of the Taupō District, and parts of Rotorua, Rotorua District. It is governed by the Waikato Regional Council. The region stretches from Coromandel Peninsula in the north, to the north-eastern slopes of Mount Ruapehu in the south, and spans the North Island from the west coast, through the Waikato and Hauraki to Coromandel Peninsula on the east coast. Broadly, the extent of the region is the Waikato River catchment. Other major catchments are those of the Waihou River, Waihou, Piako River, Piako, Awakino River (Waikato), Awakino and Mokau River, Mokau rivers. The region is bounded by Auckland Region, Auckland on the north, Bay of Plenty on the east ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolling (metalworking)
In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness, to make the thickness uniform, and/or to impart a desired mechanical property. The concept is similar to the rolling of dough. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature, then the process is known as hot rolling. If the temperature of the metal is below its recrystallization temperature, the process is known as cold rolling. In terms of usage, hot rolling processes more tonnage than any other manufacturing process, and cold rolling processes the most tonnage out of all cold working processes... Roll stands holding pairs of rolls are grouped together into rolling mills that can quickly process metal, typically steel, into products such as structural steel (I-beams, angle stock, channel stock), bar stock, and rails. Most steel mills ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shingling
{{about, the industrial steel manufacturing process, the text mining technique, w-shingling Shingling was a stage in the production of bar iron or steel, in the finery and puddling processes. As with many ironmaking terms, this is derived from the French - ''cinglage''. The product of the finery was a bloom or loop (from old Frankish ''luppa'' or '' lopp'', meaning a shapeless mass); that of the puddling furnace was a puddled ball. In each case, this needed to be consolidated by hammering it into a more regular shape. This was done manually with heavy hammers; later by a waterwheel or steam powered hammers, leading to modern power hammers. The result was an oblong-shaped iron product similar in appearance to shingles used on roofs. In the finery, this was part of the work of the finer; during puddling, it was done by a special workman called the shingler. The iron (or steel) then had to be further shaped (drawn out) under the hammer or rolled in a rolling mill In met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batch Production
Batch production is a method of manufacturing where the products are made as specified groups or amounts, within a time frame. A batch can go through a series of steps in a large manufacturing process to make the final desired product. Batch production is used for many types of manufacturing that may need smaller amounts of production at a time to ensure specific quality standards or changes in the process. This is opposed to large mass production or continuous production methods where the product or process does not need to be checked or changed as frequently or periodically. Characteristics In the manufacturing batch production process, the machines are in chronological order directly related to the manufacturing process. The batch production method is also used so any temporary changes or modifications can be made to the product if necessary during the manufacturing process. For example, if a product needed a sudden change in material or details changed, it can be done in be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrought Iron
Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag Inclusion (mineral), inclusions (up to 2% by weight), which give it a wood-like "grain" that is visible when it is etched, rusted, or bent to structural failure, failure. Wrought iron is tough, malleable, ductile, corrosion resistant, and easily forge welding, forge welded, but is more difficult to welding, weld electrically. Before the development of effective methods of steelmaking and the availability of large quantities of steel, wrought iron was the most common form of malleable iron. It was given the name ''wrought'' because it was hammered, rolled, or otherwise worked while hot enough to expel molten slag. The modern functional equivalent of wrought iron is Carbon steel#Mild or low-carbon steel, mild steel, also called low-carbon steel. Neither wrought iron nor mild steel contain enough carbon to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puddling (metallurgy)
Puddling is the process of converting pig iron to bar (wrought) iron in a coal fired reverberatory furnace. It was developed in England during the 1780s. The molten pig iron was stirred in a reverberatory furnace, in an oxidizing environment, resulting in wrought iron. It was one of the most important processes of making the first appreciable volumes of valuable and useful bar iron (malleable wrought iron) without the use of charcoal. Eventually, the furnace would be used to make small quantities of specialty steels. Though it was not the first process to produce bar iron without charcoal, puddling was by far the most successful, and replaced the earlier potting and stamping processes, as well as the much older charcoal finery and bloomery processes. This enabled a great expansion of iron production to take place in Great Britain, and shortly afterwards, in North America. That expansion constitutes the beginnings of the Industrial Revolution so far as the iron industry is conc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onehunga Ironworks - Design Of Wilson's Direct Reduction Furnace
Onehunga is a suburb of Auckland in New Zealand and the location of the Port of Onehunga, the city's small port on the Manukau Harbour. It is south of the city centre, close to the volcanic cone of Maungakiekie / One Tree Hill. Onehunga is a residential and light-industrial suburb. There are almost 1,000 commercial and industrial businesses in the area. Onehunga stretches south from Royal Oak to the northern shore of the Manukau Harbour. To the east are the areas of Oranga and Te Papapa; to the west, Hillsborough. On the southern shore of the Manukau Harbour, and linked to Onehunga by two bridges, is the suburb of Māngere Bridge. Geography Onehunga lies on the Auckland isthmus, on the northern shore of Mangere Inlet, an arm of the Manukau Harbour, and just south of the volcanic cone of Maungakiekie / One Tree Hill. The Port of Onehunga, on Manukau Harbour, is now much smaller than Auckland's east coast port on the Waitematā Harbour, but in the 19th century it was the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manukau Heads
The Manukau Heads is the name given to the two promontories that form the entrance to the Manukau Harbour – one of the two harbours of Auckland in New Zealand. The southern head, at the northern tip of Āwhitu Peninsula, is simply termed "The South Head", whereas the northern head is named "Burnett Head" (the term North Head is used to indicate a promontory in the nearby Waitematā Harbour). Both heads are hilly areas of land that rise steeply from the water to over 240m within less than 400m of the shoreline. History In Pre-European times, the west coast of the Āwhitu Peninsula was the site of Paorae, a flat sand dune land which was a major kūmara (sweet potato) cultivation site for Tāmaki Māori iwi. The land eroded during the 18th century, however the sand from the dune feature continued to move northwards, creating vast sand banks in the Manukau Heads and at Whatipu. The foot of the South Head cliffs is the location of the Matatuahu archaeological site, one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dover, New Jersey
Dover is a town in Morris County, New Jersey, United States. Located on the Rockaway River, Dover is about west of New York City and about west of Newark, New Jersey. As of the 2010 United States Census, the town's population was 18,157,DP-1 - Profile of General Population and Housing Characteristics: 2010 for Dover town, Morris County, New Jersey , . Accessed December 16, 2011. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Chambers (businessman)
John Chambers (c. 1839 – 27 September 1903) was a British citizen who became a New Zealand businessman and ironsands entrepreneur. Early life He was born in Bishop's Stortford, Hertfordshire, England in about 1839 and arrived in New Zealand in 1866. Steel production in Onehunga Chambers arrived in New Zealand in 1866 and realised that the ironsands on the beaches of Taranaki had iron production potential. The area takes its name from Mount Taranaki, a volcano that rises above the beaches. Chambers twice tried to further international interest in the resources of the sands, but was thwarted at first by the lack of interest and smelting difficulties. He tried in 1876, when he approached smelters in the UK and US, but a general lack of interest produced only a few laboratory test smelts. In 1886 John Parry managed to persuade Sir Henry Bessemer to experiment with the sands; the results were promising, though Bessemer was in his twilight years and unable to continue with developme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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