- 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 process of picking up and carrying along, as the collecting and movement of sediment by currents, or the incorporation of air bubbles into a cement slurry.
Industry:Mining
The process of preservation of plant tissues under the influence of arrested decay.
Industry:Mining
The process of pulling the drill string from a borehole, performing an operation on the string (such as changing a bit, emptying the core barrel, etc.), and then rerunning the drill string into the borehole.
Industry:Mining
The process of recording the formations traversed by a drill hole, based on the measurements of two basic parameters observable in uncased holes; namely, the spontaneous potential and the resistivity of the formations to the flow of electric currents. The detailed study in situ of the formations penetrated by a drill hole, based on 1058 measurements made systematically by lowering an apparatus in the hole responding to the following physical factors or parameters: (1) the resistivities of the rocks; (2) their porosity; (3) their electrical anisotropy; (4) their temperature; and (5) the resistivity of the drilling muds.
Industry:Mining
The process of reducing high air pressure gradually enough so as not to injure people who have been working in it.
Industry:Mining
The process of reducing the cross-sectional diameter of tubes or wire by drawing through successively smaller dies without previously heating the material, thereby increasing its tensile strength. Steel wire for prestressing is made by this process.
Industry:Mining
The process of removing impurities from molten metal or metallic compounds by blowing air through the liquid. The impurities are changed either to gaseous compounds, which are removed by volatization, or to liquids which are removed as slags.
Industry:Mining
The process of removing moisture from mine air to increase its cooling capacity--an important factor in environmental health and comfort in deep mining.
Industry:Mining
The process of removing scale or oxide from metal objects by immersion in an acid bath to obtain a chemically clean surface prior to galvanizing or painting.
Industry:Mining
