Английский для сварщиков. Гричин С.В. - 61 стр.

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61
current in an electrical conductor.
3. Flux
C
Electrical current whose magnitude and direction vary
cyclically, as opposed to direct current, whose direction
remains constant.
4. Welding
D
(from the Greek άνοδος = 'going up') is the electrode in a
device that electrons flow out of to return to the circuit.
Literally, the path through which the electrons ascend out
of an electrolyte solution. The other charged electrode in
the same cell or device is the cathode.
5. Alternating
current (AC)
E
In metallurgy, a substance which facilitates soldering,
brazing, and welding by chemically cleaning the metals to
be joined. Common ….s are: ammonium chloride or rosin
for soldering tin; hydrochloric acid and zinc chloride for
soldering galvanized iron (and other zinc surfaces); and
borax for brazing, and welding ferrous metals.
6. Carbon
dioxide
F
Atmospheric gas comprised of one carbon and two
oxygen atoms. A very widely known chemical compound,
it is often referred to by its formula CO2. It is present in the
Earth's atmosphere at a low concentration and acts as a
greenhouse gas. In its solid state, it is called dry ice. It is a
major component of the carbon cycle.
7. Oxidation
G
Loss of an electron by a molecule, atom or ion
8. Goggles and
safety glasses
H
(Formerly wolfram) is a chemical element that has the
symbol W (L. wolframium) and atomic number 74. A very
hard, heavy, steel-gray to white transition metal, it is found
in several ores including wolframite and scheelite and is
remarkable for its robust physical properties, especially the
fact that it has a higher melting point than any other non-
alloy in existence. The pure form is used mainly in
electrical applications but its many compounds and alloys
are widely used in many applications (most notably in light
bulb filaments, and as both the filament and target in most
X-ray tubes and in space-age superalloys).
9. Ozone
I
In metallurgy a ferrous alloy with a minimum of 10%
chromium content. The name originates from the fact that it
does not stain, corrode or rust as easily as ordinary steel.
This material is also called corrosion resistant steel when it
is not detailed exactly to its alloy type and grade,
particularly in the aviation industry.
10. Toxicity
J
also known as arc flash, welder's flash, corneal flash

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