- 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 ...
The extension produced in a tensile test after the ultimate tensile stress has been passed and concentrated on part of the gauge length where a neck is formed.
Industry:Mining
The extent to which a material exhibits the property of yielding hydroxyl ions in a water solution.
Industry:Mining
The extent to which one metal is capable of forming solid solutions with another. This varies widely between different pairs of metals, some of which are mutually soluble in all proportions, while others are practically insoluble in each other.
Industry:Mining
The extraction and refining of metals by the use of electric currents.
Industry:Mining
The extraction of 200 Btu/min (211 kJ/min), 12,000 Btu/h (12.7 MJ/h), or 288,000 Btu/d (3.1 GJ/d). The last is also called a ton-day of refrigeration. A ton of refrigeration is equal to 3.5168 kW of heat removal.
Industry:Mining
The extraction of metals from their ores or from the naturally occurring aggregates of minerals by various mechanical and chemical methods. The major divisions of extractive metallurgy may be classified as mineral dressing, pyrometallurgy, hydrometallurgy, and electrometallurgy.
Industry:Mining
The extraction of minerals in the liquid or gaseous state from the Earth's crust by means of boreholes and suction pumps. Boreholes are used for mining petroleum, and for the extraction of liquid solutions of salt, sulfur, etc.
Industry:Mining
The extraction of silver from sulfide ores or matte by roasting in such a way as to form sulfate of silver, leaching this out with hot water, and precipitating the silver by means of metallic copper.
Industry:Mining
