WIA MC114-0, Руководство оператора

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1 INTRODUCTION
MMAW (Stick Welding)
Manual Metal Arc Welding (MMAW) is a
process where an arc is struck between a
flux-coated consumable electrode and the
work piece. The arc and the weld pool are
both shielded by gases generated by the
flux coating of the electrode.
The Weldarc 200 AC/DC has been
designed to be used with 2.0mm, 2.5mm,
3.2mm and 4.0mm diameter electrodes.
The smaller electrodes are used when
welding at lower currents, such as sheet
metal applications. Increasing the electrode
diameter permits higher welding currents to
be selected.
WIA supplies a wide range of mild steel and
special purpose electrodes which cater
for home workshop, rural, and industrial
requirements. Some popular AUSTARC
electrodes are listed below. The correctly
selected AUSTARC electrode will influence
the quality of the weld, and the stability
of the arc.
Austarc 12P, Classification E4313-A
A popular general purpose electrode
used with ease in all positions, vertical up
or down. The smooth forceful arc makes
it an ideal electrode for all general mild
steel applications.
Austarc 13S, Classification E4313-A
A smooth running electrode with a soft arc,
particularly suited to light sheetmetal and
smooth mitre fillet welds.
Austarc 16TC, Classification E4916-A
A low hydrogen electrode with good
arc stability and out-of-position welding
characteristics. This electrode is ideal
for medium carbon steels, or steels of
unknown analysis.
Unicord 312, Classification ES312-16
A high tensile (50tsi), chromium nickel
electrode specially formulated for joining
all alloy steels and irons, and for tool and
die maintenance.
Staincord 316L-016, Classification
E316L-16
For quality all position stainless steel
welding. Extra smooth running, high arc
stability, easy re-strike, excellent slag
removal and bead appearance.
Staincord 309Mo-16, Classification
E309LMo-16
For high quality all position stainless steel
welding. This extra low carbon alloy is
specifically indicated for AISI 309Mo type
alloys, but is also ideal for joining mild/low
alloy steel to a range of 300 and 400 series
stainless steels. Features extra smooth
running, high arc stability, easy re-strike,
excellent slag removal and bead appearance.
GTAW (TIG Welding)
Gas Tungsten Arc Welding (GTAW) is a
welding process where the arc is struck
between a non-consumable tungsten
electrode and the work piece. A ceramic
nozzle surrounds the tungsten electrode
and directs a flow of inert gas, usually
Argon, over the electrode and the weld
zone. If filler metal is required, it is hand
fed into the welding arc. The DC current
output of the Weldarc inverter is suitable
for welding most ferrous and non-ferrous
metals. The AC current output is for
welding Aluminium.