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United States Bureau of Mines
行业: Mining
Number of terms: 33118
Number of blossaries: 0
Company Profile:
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 ...
Pig iron purified by blowing air through it.
Industry:Mining
Pig iron suitable for the manufacture of wrought iron.
Industry:Mining
Pig iron used for the charge of a puddling furnace.
Industry:Mining
Pig iron with sufficiently low phosphorus (0.100% maximum) to be suitable for use in the Bessemer process.
Industry:Mining
Pig tin of about 99.95% purity, obtained from the Penang Mines in Malaysia.
Industry:Mining
Pile of refuse from a washer.
Industry:Mining
Piling composed of interlocking rolled steel sections driven vertically into the ground with guide walings in place before excavation starts.
Industry:Mining
Piling spoil alongside the excavation from which it is taken.
Industry:Mining
Pillars intended to support vertical load in excess of the weight of the strata directly above them. Generally, these abutment pillars are large pillars adjacent to smaller pillars, sometimes called yield pillars, which are incapable of carrying the weight of the strata above them.
Industry:Mining
Pillars of coal left in the mouths of abandoned rooms to support the road, entry, or gangway until the entry pillars are drawn. In Arkansas, these pillars are called entry stumps even when the rooms are first driven, before any pillars are pulled or the rooms abandoned.
Industry:Mining
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