The chemical condition in which metal is fit to be cast into ingots.
Standard, 2
A saw that is run at a high rate of speed and has a fusing action at its
cutting edge; used in cutting hot ingots. Standard, 2
The general arrangement of crystals in an ingot, which consists typically
of chill, columnar, and equiaxed crystals. According to the relations
between the mass and the temperature of the molten metal and mold,
respectively, one or two types of crystals may be absent. CTD
The primary and higher order reactants of the resins and the chemical
constituents of the molding compound, such as plasticizer, lubricant,
solvent, catalyst, stabilizer, fire retardant, hardener, and coloring
material.
a. A place for entering; a way of entrance. Webster 2nd
b. In underground bituminous mining there are three methods of ingress--by
drift, shaft, or slope. Drift mines are opened by driving horizontally
from the side of an elevation into the seam; shaft mines by sinking a
vertical shaft through the overlying strata into the seam; and slope mines
by driving an inclined entry through the overlying strata through the
surface into the seam. BCI
(As in the American Table of Distances for storage of explosives). A
building regularly used in whole or in part as a habitation for human
beings, or any church, schoolhouse, railroad station, store, or other
structure where people are accustomed to assemble, except any building or
structure occupied in connection with the manufacture, transportation,
storage, or use of explosive materials. Cote
In a cable excavator, the line that pulls the bucket to dig and bring in
soil. Also called digging line. Nichols, 1
Widely used to designate the part of the ash content of a coal that is
structurally part of the coal itself and cannot be separated from it by
any mechanical means, usually amounts to about 1%. Also called dirt; fixed
ash; constitutional ash. Opposite of free ash. See also:ash; ash yield;
extraneous ash. Mitchell; Pryor, 3
Property considered by some physicists to be possessed by certain
naturally occurring minerals, which readily respond without pretreatment
to levitation by the froth-flotation process; by other workers considered
due to slight surficial contamination during mining and transport.
Pryor, 3
The portion of the mineral matter of coal organically combined with the
coal. It contains elements that have been assimilated by the living plant,
such as iron, phosphorus, sulfur, calcium, potassium, and magnesium.
AGI
a. In general, the moisture that is present in the coal in the bed.
Mitchell
b. Of coal, that remaining after natural drying in air. Pryor, 3
c. Maximum moisture that a sample of coal will hold at 100% humidity and
atmospheric pressure. Bennett
d. See:moisture content
An original structural feature of the country rock that has been
faithfully preserved after replacement by ore. Schieferdecker
a. In drilling, a substance that, when added to cement, has the capacity
to slow down or lengthen the normal time required for that specific cement
to set; also, a substance added to drilling mud to check or slow down
organic or chemical deterioration or change in the physical
characteristics of the drilling mud. Long
b. A substance that when present in an environment substantially decreases
corrosion.
The total water gage actually produced by a mine fan.
See also:theoretical depression
See:original dip
In quarrying, the face formed by the blasting of the slope.
Streefkerk
See:first arrival
The process of causing a high explosive to detonate. The initiation of an
explosive charge requires an initiating point, which is usually a primer
and electric detonator, or a primer and a detonating cord or fuse.
Nelson
A detonator or detonating cord used to start detonation or deflagration in
an explosive material; can refer to a blasting cap or primer.
A borehole into which a cement slurry or grout has been forced by
high-pressure pumps and allowed to harden. Long
a. The process of emplacement of magma in preexisting rocks; magmatic
activity; also, the igneous rock mass so formed.
b. The forcing, under abnormal pressure, of sedimentary material
(downward, upward, or laterally) into a preexisting deposit or rock,
either along some plane of weakness or into a crack or fissure, producing
structures such as sandstone dikes. AGI