PowR-Quip Contractor Serie Manual De Instrucciones página 16

GLOSARY OF TERMINOLOGY
AC or alternating current - electric current that reverses direction
periodically. 60 cycle current travels in both directions 60 times per
second.
ARC length - the distance between the end of the electrode and
the point of contact with the work surface.
Base metal - the material being welded.
Union butt - the union of two members aligned approximately in the
same plane.
Crater - vacuum formed when the bow makes contact with the
base metal.
CD or direct current - electric current that moves in one sense only.
The polarity (+ or-) determines the direction of the displacement.
CD o reverse polarity - occurs when the electrode holder is
connected to the positive pole of the welding machine. This
16
All manuals and user guides at all-guides.com
GENERATOR DIAGRAM
technology directs more heat melting the electrode rather than the
work piece. This technique is usually used with thin pieces.
DC Direct polarity - occurs when the electrode holder is connected
to the negative pole of the welding machine. With this technique the
most heat is targeting the work piece to achieve greater penetration
into thick pieces.
Electrode - a metal rod having approximately the same composition
of material being welded.
Fillet welding - welding of triangle, straight to join two surfaces at an
angle, "T" or in the corners.
Flux - a material, which when heated, emits a gas that covers the
area to be welded. This gas protects the metals that weld against
impurities in the air.
Welding with flux arches - also referred to as welding without gas,
this technique for welding uses a welding wire. The wire is tubular
and filled with flux.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE