Climax BW2600, Руководство по эксплуатации, Страница: 75 / 126

P/N 85555, Rev. 6 Page 59
NOTICE
The arc voltage should be adjusted during welding to maintain
the best bead profile and shorting performance. Due to
variations in the environment and welding systems, this manual
cannot provide exact specifications. Contact CLIMAX for
technical support related to welding parameters.
4.6.2 Using 0.035" wire
Follow these guidelines when using 0.035" wire:
• 100 amps = 200 in/min at 16–17 volts
• 125 amps = 240 in/min at 17–18 volts
• 150 amps = 300 in/min at 18–19 volts
NOTICE
These numbers are only guidelines and do not take into account
the variations of equipment and consumables.
4.6.3 Shielding gas
A flow range of 25–35 cfh (1 m
3
/hour) is recommended. Avoid excessive flow, as
this creates turbulence and could cause poor shielding.
If poor shielding is suspected, check for dirty nozzle or an obstructed gas flow
from the diffuser. If wind is a problem, make a shield from leather or other avail-
able non-conductive materials.
4.6.4 Wire and gas
The BW2600 is designed for solid steel wire using the MIG welding process.
The length of time that the bore welder may be used continuously depends on
spatter build-up in the welding nozzle. When deciding the type of wire, gas, and
power supply to use, select a combination that produces the smoothest arc action.
That will produce less spatter buildup.
Wires with higher de-oxidizer content usually work best. Wires E-70S-2 and E-
70S-6 are recommended; E-70S-2 produces finer spatter and less glass buildup in
multilayer buildups.
Any commonly used inert gas may be used, but those with high argon content are
preferred, such as the following combinations:
• 75% argon + 25% CO
2
for horizontal bore welder axis welding
• 92% argon + 8% CO
2
for vertical bore welder axis welding
Straight argon or helium should not be used for steel. Straight CO
2
produces a sig-
nificant amount of spatter.