Английский язык для инженеров сварочного производства. Гричин С.В - 140 стр.

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140
MELTING RANGE
The temperature range between solidus and liquidus.
MELTING RATE
The weight or length of electrode melted in a unit of time.
METAL-ARC CUTTING
The process of cutting metals by melting with the heat of the metal arc.
METAL-ARC WELDING
An arc welding process in which a metal electrode is held so that the
heat of the arc fuses both the electrode and the work to form a weld.
METALLIZING
A method of overlay or metal bonding to repair worn parts.
MIXING CHAMBER
That part of a welding or cutting torch in which the gases are mixed for
combustion.
MULTI-IMPULSE WELDING
The making of spot, projection, and upset welds by more than one
impulse of current. When alternating current is used each impulse may
consist of a fraction of a cycle or a number of cycles.
NEUTRAL FLAME
A gas flame in which the oxygen and acetylene volumes are balanced
and both gases are completely burned.
NICK BREAK TEST
A method for testing the soundness of welds by nicking each end of
the weld, then giving the test specimen a sharp hammer blow to break
the weld from nick to nick. Visual inspection will show any weld
defects.
NONFERROUS
Metals which contain no iron. Aluminum, brass, bronze, copper, lead,
nickel, and titanium are nonferrous.
NORMALIZING
Heating iron-base alloys to approximately 100 °F (38 °C) above the
critical temperature range followed by cooling to below that range in
still air at ordinary temperature.
NUGGET
The fused metal zone of a resistance weld.
OPEN CIRCUIT VOLTAGE
The voltage between the terminals of the welding source when no
current is flowing in the welding circuit.
OVERHEAD POSITION
The position in which welding is performed from the underside of a
joint and the face of the weld is approximately horizontal.

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