- 行业: Mining
- Number of terms: 33118
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The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
Iron containing carbon in excess of its solubility in the austenite that exists in the alloy at the eutectic temperature. For the various forms--gray cast iron, white cast iron, malleable cast iron, and nodular cast iron--the word "cast" is often left out, resulting in the terms gray iron, white iron, malleable iron, and nodular iron, respectively.
Industry:Mining
Iron formation that shows marked banding, generally of iron-rich minerals and chert or fine-grained quartz. Abbrev: BIF.
Industry:Mining
Iron in the form of thin sheets; used as cores of transformers, etc. The losses due to eddy currents with laminated iron cores are lower when compared with solid cores.
Industry:Mining
Iron ores in which the gangue consists principally of coaly matter; e.g., black band ironstone.
Industry:Mining
Iron plates suspended in dust chambers for the purpose of settling dust and condensing fumes that escape from the furnace with the gases.
Industry:Mining
Iron sulfide, in the form of pyrite, containing gold, probably in solid solution.
Industry:Mining
Iron which can be worked with ordinary cutting tools or which can be readily abraded with files. It is darker gray in color than the harder cast iron.
Industry:Mining
Iron-base alloy containing enough chromium to confer a superior corrosion resistance.
Industry:Mining
