- 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 ...
Techniques for analyzing methods used in performing an operation and measuring the work involved. Work study fosters better use of materials, plant, and labor, thus ensuring higher productivity.
Industry:Mining
Temperature at which condensation of water occurs; a saturation temperature.
Industry:Mining
Temperature indicated by a conventional dry thermometer; a measure of the sensible heat content of air.
Industry:Mining
Temperature indicator that consists of a series of small bars placed horizontally on a refractory stand. On heating, some bars are bent to varying degrees, while others are unaffected. The temperature is indicated by the bar that is just beginning to sag. The bars are numbered 1 to 40, the temperature range being 600 to 1,550 degrees C.
Industry:Mining
Temperature of iron at which redness is observable in subdued daylight (525 to 700 degrees C). Bright red heat is in the range 700 to 1,000 degrees C and is followed by orange at 1,000 degrees C, white at 1,300 degrees C, and blue-white at 1,500+ degrees C.
Industry:Mining
Temperature range over which mixtures (alloys, fluxes) melt. In a constitutional diagram, the area between liquidus and solidus.
Industry:Mining
Temporarily reducing the temperature or the volume of the air blast on a blast furnace.
Industry:Mining
Temporary arch legs used adjacent to the face conveyor in an advance gate to allow the conveyor to be moved forward and still maintain the gate supports. The conveyor side half-arch is temporarily replaced by props and crossbars (false legs). When the conveyor has passed, the half-arch is bolted back in position.
Industry:Mining
