SPW Product Catalogue 2019

WELDSTAR DC CARBON ARC GOUGING RODS
STAINLESS STEEL & SPECIAL ELECTRODES
Packaging & Sizes Current Range (Amps) Current
TAI40G 4.0mm 100 / Pk 240 ~ 350 DC+
TAI50G 5.0mm 100 / Pk 280 ~ 380 DC+
TAI65G 6.5mm 50 / Pk 290 ~ 400 DC+
TAI80G 8.0mm 50 / Pk 320 ~ 460 DC+
TAI95G 9.5mm 50 / Pk 460 ~ 600 DC+
Recommended Air Pressure & Flow
600 ~ 700 kpa 450 ~ 500 L/ min.
Applications
Weldstar Carbon Arc Gouging Rods are
used for the removal of metal using the
arc-air gouging process. They allow the
removal of metal from a wide range of
non-ferrous and ferrous metals
Product detail
Weldstar DC Carbon Arc Gouging
Electrodes are made using a high
quality carbon / graphite mixture. They
are coated with copper to improve
electrical conductivity of the required
high currents.
Notes on usage
1. These carbons are designed for use
on DC power sources only.
2. Connect to Constant Voltage Power
Source and set to desired Amperage
as per below.
3. Use Weldstar Gouging Torch
connected to 600~700 kpa of air
pressure at 450~500 L/min.
4. Place Carbon in jaws of torch
ensuring that the air flow is directed
on to the weld metal to be removed.
5. Ensure adequate safety clothing and
protection is used.
6. Commence gouging or cutting.
5
ARC AIR GOUGING
An electric arc is generated between the tip of a carbon
electrode (graphite) and the work piece. The metal is melted
by the electric arc and blown away by the air jet, thus leaving
a clean groove. The process is simple to apply (using the same
power source as SMA welding with an open circuit voltage
of at least 60V), has a high metal removal rate, and gouge
profile can be good controlled. DC+ (electrode positive) is
normally preferred for un-low and high alloyed steel but AC
(required special electrodes) is more effective for cast iron,
copper and nickel alloys. The electrode is a graphite (carbon)
rod which has a copper coating to reduce electrode erosion.
The gouging torch is normally operated with a compressed
air line. Air pressure should be at least 6 bar. The air stream
is directed at the arc from behind the electrode and sweeps
under the tip of the electrode. The width of the groove
is determined by the diameter of electrode, but depth is
dictated by the angle of electrode to the workpiece and rate
of travel. Dressing by grinding the side-walls of the gouge
should be carried out.
Applications:
General repair and maintenance
In metal fabrication and casting finshing
In construction, mining, chemical and petroleum technology
Is flexible, efficient and cost effective on practically any metal
as: carbon steel, un-and low alloyed steel, high alloyed steel
as stainless steel; grey, malleable and ductile cast iron; and
aluminium and copper and nickel alloys
Dia. (mm) per pack Pieces per carton Pack Type (1) Package Sales Unit Stock Product Number
DC Gouging Carbons 4,8x305 50 5 CB PK ex stock KA1054-048
6,3x305 50 5 CB PK ex stock KA1054-063
8,0x305 50 5 CB PK ex stock KA1054-080
9,5x305 50 5 CB PK ex stock KA1054-095
12,7x305 50 10 CB PK ex stock KA1054-127
Jointed Gouging Carbons 9,5x355 50 5 CB PK ex stock KA1196-095
13,0x430 25 5 CB PK ex stock KA1196-130
16,0x430 25 5 CB PK ex stock KA1196-16
19,0x430 25 5 CB PK ex stock KA1196-19
Flat Gouging Carbons 15.0x5.0x305 50 5 CB PK ex stock KA1239
CONSUMABLES
1300 WELDER (1300 935 337)
355