Graphite
Gouging Rods - Welding Supplies |
NAC Carbon
Products’ welding supplies include graphite gouging rods that have proved more effective because
of our unique quality that’s measured at every interval.
- Cooler
for greater operator comfort.
- Heat
is at gouging rod tip.
- Joints
stay cool due to copper-coated connections.
- Gougine rods
carry increased amperage.
- Increased
conductivity and higher resistance to oxidation eliminates
overheating joints.
- Available
in all the conventional sizes: 12” – 15” – 17”
- Uniform
tightly adherent copper coatings to prevent leafing.
- Minimum
of both electrical resistance and of thermal conductivity.
- Most
suitable arc-supporting qualities.
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| Copper-coated connections, both male and female ends,
as well as on the rods, keep the joints cool. The result
is increased conductivity and economy. |
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| NAC Gouging
Rods are available in a variety of diameters and in 12”, 15” and 17” lengths. |
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Welding Supplies for Better Economy - NAC Graphte Gouging Rods
Our American made graphite gouging rods will outperform the gouging rods
of our competitors providing you with greater cost savings:
- NAC
graphite gouging rods remove up to 35% more metal per inch.
- Standard
sizes are 2% to 5% longer than competitive standards.
- Reduced
torch damage.
- Reduced
stub losses due to lower resistance joints.
- High
current – carrying
capacity.
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Field
Trial Results - Graphite Gouging Rods |
| Type
of Steel Casting |
5/8-in.
Diameter Rod |
Inches
of Rod Consumed
|
| Bolster
Plate |
NAC
Jointed Rod |
2.4 |
15.6 |
| Other
Rod |
4.0 |
27.6 |
| Side
Frame |
NAC
Jointed Rod |
2.1 |
15.6 |
| Other
Rod |
3.5 |
29.9 |
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Metal-Removal
Rate & Current
Metal-removal rate is directly related to current. As shown
in graph, when current doubles, the metal-removal rate increases
four times. For example, at 1400 amps a 3/4-in. rod removes twice
as much metal per minute as at 1000 amps. The graph is based
on typical foundry conditions. Specific applications may extend
or limit the range of any rod diameter or length actually used.
When rapid metal removal is your prime requirement, select the
smallest diameter rod that will carry the current. When your
prime requirement is a smooth finish, select the largest-diameter
rod for the available power supply. Large diameter rods provide
smoother arc-cleaned finishes. Finish can also be improved by
operating at smaller angle to the work piece.
Ways to Improve Gouging Rod Life
Excessive
burnback – caused by too high a current for
the gouging rod diameter, air pressure that’s too low, operation
in confined spaces which overheats the gouging rod surface, excessive
gouging rod length extending from the electrode holder, too thin a
copper coating on the rod. Copper leafing – the result of an extra
thick copper coating or poor coating adhesion.
Stub losses – caused by improper joint seating which produces
low electrical conductivity between mating surfaces of rod joints;
this can be avoided by firmly seating each gouging rod in the connecting
joint and rotating the rod about ¼ turn while tightening
the new rod into the old stub; this overcomes even a little
shop dust that might be in the connection. |
| Graphite Gouging Rods Sizes
and Specifications (Click
for more information) |
