- 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 ...
Corrosion that occurs when current flows between cathodic and anodic areas on metallic surfaces.
Industry:Mining
Corundum showing a bluish, reddish, or yellowish reflection of light, or lighter shade, than the stone itself. Compare: asterism; star ruby; star sapphire.
Industry:Mining
Coupling that joins two driving shafts that rotate about differently slanted axes.
Industry:Mining
Coverings for exposed trolley wires in mines and other locations where transportation power wires are within reaching height and are a constant source of danger to all personnel. Coverings, made of rubber or some other insulating material, guard workers from severe burns or electrocution by direct contact with the wire.
Industry:Mining
Cracks in cold, or nearly cold, metal, due to excessive internal stress caused by contraction. Formation of cracks may be caused by the mold being too hard or the design of a casting being unsuitable.
Industry:Mining
Crater theory defines an optimum burden or distance to a free face at which a spherical explosive charge is buried and produces the greatest volume of broken and excavatable rock. This distance is unique based on rock type and explosive type. The theory also defines the critical depth or spherical charge buried depth at which surface disturbance is barely detectable, resulting in slight surface mounding and minor cracking.
Industry:Mining
Criterion of trend in a continuous operation such as mineral processing. Abbrev., S.I.
Industry:Mining
