WIA W67-1, Руководство оператора

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1 INTRODUCTION
Gas Metal Arc Welding (G.M.A.W.) is an
arc welding process where a consumable
wire is fed by motor driven feed rolls to a
welding gun, and where welding current is
supplied from the welding power source.
The welding arc is struck between the work
piece and the end of the wire, which melts
into the weld pool. The arc and the weld
pool are both shielded by gas flow from the
gun, or in the case of “self shielded” wires,
by gases generated by the wire core.
The process is very versatile in that by
selection of the correct wire composition,
diameter and shielding gas, it can be used
for applications ranging from sheet-metal
to heavy plate, and metals ranging from
carbon steel to aluminium alloys.
The Weldmatic W67 4RD has been designed
to be used with consumable wires in the
range from 0.9mm to 1.6mm diameter. The
smaller wire sizes are used when welding
at lower currents, such as sheet-metal
applications. Increasing the wire diameter
permits higher welding currents to be
selected.
A common application of G.M.A.W. is for
welding Mild Steel. In this application, a
Mild Steel solid consumable wire such as
AUSTMIG ES6 is used with a shielding gas
of Carbon Dioxide, or Argon mixed with
Carbon Dioxide. Alternatively, Flux-cored
consumable wires are available in both gas
shielded, and ‘gasless’ self shielding types.
Stainless steel and Aluminium can be
welded with G.M.A.W. using the correct
consumable wire and shielding gas.
The Weldmatic W67 4RD Wirefeeder has
been designed to feed a range of hard,
soft, and flux-cored wires for the G.M.A.W.
process. A compact motor with integral gear
box is coupled to a 4 roll drive assembly
forming the basic component of the
wirefeeder. The motor is controlled by an
electronic speed control which provides
speed regulation and compensation for
supply voltage variations.
2 RECEIVING
Check the equipment received against the
shipping invoice to make sure the shipment
is complete and undamaged. If any damage
has occurred in transit, please immediately
notify your supplier.
The W67 package contains;
– Weldmatic 4RD Enclosed Wirefeeder
W67 with drive rolls 0.9/1.2mm V Groove
1.2/1.6 V Groove 0.9/1.2 1.2/1.6 Knurled
Roller.
– Interconnecting leads
– (This) Operating Manual W67-40.
If the W67, 4RD Wirefeeder is included
in a package with a Weldmatic MIG
welder, it will also contain the following;
– Welding gun and cable assembly
(see Section 10.4 for details)
– Work lead
– Gas hose
– Argon/mixed gas regulator/flow gauge.