5 Terms
Home > Industry/Domain > Mining > Mineral mining
Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
Add a new termContributors in Mineral mining
Mineral mining
Pyramid-set
Mining; General mining
A bit crown, the face of which is covered with a series of stubby pyramids, each apex of which is set with a diamond.
Single-layer bit
Mining; General mining
A bit containing a single layer of diamonds set so that the diamonds protrude on the surface of the crown.
Surface-set bit
Mining; General mining
A bit containing a single layer of diamonds set so that the diamonds protrude on the surface of the crown.
Nekton
Mining; General mining
A biological division made up of all the swimming animals found in the pelagic division.
Bottom-discharge bit
Mining; General mining
A bit designed for drilling in soft formations and for use on a double-tube core barrel, the inner tube of which fits snugly into a recess cut into the inside wall of the bit directly above the ...
Face-ejection bit
Mining; General mining
A bit designed for drilling in soft formations and for use on a double-tube core barrel, the inner tube of which fits snugly into a recess cut into the inside wall of the bit directly above the ...
Insert bit
Mining; General mining
A bit into which inset cutting points of various preshaped pieces of hard metal (usually a sintered, tungsten carbide-cobalt powder alloy) are brazed or hand-peened into slots or holes cut or drilled ...
