enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Geology of Wisconsin - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Wisconsin

    Unmetamorphosed sedimentary rocks are found in the rock record from the Cambrian, in the early Paleozoic.The feldspathic quartz sandstone and orthoquartz sandstone of Chequamegon, Devils Island and Orienta formations make up the Bayfield Group which underlies the entire Lake Superior shoreline of the state from Chequamecon Bay to the St. Louis River in the west.

  3. Pellet (steel industry) - Wikipedia

    en.wikipedia.org/wiki/Pellet_(steel_industry)

    This was necessary as naturally rich iron ores (containing over 50% iron) were being depleted. The development of pelletizing fine magnetite ores, which typically have less than 44 mm in size and are around 85% iron, began around 1943 with support from the University of Minnesota. The process was later adopted in Europe, particularly in Sweden ...

  4. Iron Mountain (company) - Wikipedia

    en.wikipedia.org/wiki/Iron_Mountain_(company)

    Iron Mountain Inc. is an American enterprise information management services company founded in 1951 and headquartered in Boston, Massachusetts.Its records management, information destruction, and data backup and recovery services are supplied to more than 220,000 customers [2] in 58 countries throughout North America, Europe, Latin America, Africa, Asia, and Oceania.

  5. Iron Mountain District - Wikipedia

    en.wikipedia.org/wiki/Iron_Mountain_District

    The iron ore was discovered by a Mormon scouting party in 1849, and furnaces were established in Cedar City in 1852, and then Old Irontown in 1868, to produce pig iron. Total production by 1965 from the district was 72,136,297 long tons of iron ore. [2] Major areas of iron deposits and their associated mines/pits/ore bodies include: Iron ...

  6. Gogebic Range - Wikipedia

    en.wikipedia.org/wiki/Gogebic_Range

    The iron comes from the Huronian Ironwood formation. It consists of alternating beds of ferruginous oolitic chert and fine-textured cherty carbonates. Iron minerals make up one third of the formation content, the rest being quartz. The formation was discovered in 1848 by Dr. A. Randall during the Fourth principal meridian survey near Upson ...

  7. Ferrous metallurgy - Wikipedia

    en.wikipedia.org/wiki/Ferrous_metallurgy

    Cast iron development lagged in Europe because wrought iron was the desired product and the intermediate step of producing cast iron involved an expensive blast furnace and further refining of pig iron to cast iron, which then required a labor and capital intensive conversion to wrought iron.

  8. Telluric iron - Wikipedia

    en.wikipedia.org/wiki/Telluric_iron

    Telluric iron is largely divided into two groups, depending on the carbon content. Type 1 is a cast-iron typically containing over 2.0% carbon, while type 2 ranges somewhere between wrought iron and a eutectoid steel. Both types tend to handle weathering in the elements very well, but tend to decompose and crumble very quickly in the dry ...

  9. Puddling (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Puddling_(metallurgy)

    The best yield of iron achievable from dry puddling is one ton of iron from 1.3 tons of pig iron (a yield of 77%), but the yield from wet puddling was nearly 100%. The production of mild steel in the puddling furnace was achieved circa 1850 [ citation needed ] in Westphalia , Germany and was patented in Great Britain on behalf of Lohage, Bremme ...