Operation
3.5 Operation environment
Height above sea level is below 1000m.
◆
Operation temperature range: -10˚C~+40˚C.
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Relative humidity is below 90% (20˚C).
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Preferably site the machine some angles above the floor level, the maximum angle
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does not exceed 15˚.
The content of dust,acid,corrosive gas in the surrounding air or substance can not
◆
exceed normal standard.
Take care that there is sufficient ventilation during welding.There is at least 30cm free
◆
disstance between the machine and wall.
3.6 Operation notices
Read safty instruction and Chapter 1 carefully before attempting to use this equipment.
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Connect the ground wire the machine directly.
◆
In case closing the power switch, no-load voltage may be exported.Do not touch the
◆
output electrode with any part of your body.
Before operation,no concerned people should be left,Do not watch the arc in
◆
unprotected eyes.
Ensure good ventilation of the machine to improve duty ratio.
◆
Turn off the engine when the operation finished to economize energy source.
◆
When power switch shuts off protectively because of failure.Don't restart it until
◆
until problem is resolved. Otherwise,the range of problem will be extended.
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4.1 TIG basic welding technique
Gas Tungsten Arc Welding (GTAW) or TIG (Tungsten Inert Gas) as it is commonly referred
to, is a welding process in which fusion is produced by an electric arc that is established
between a single tungsten (non- consumable) electrode and the work piece. Shielding is
obtained from a welding grade shielding gas or welding grade shielding gas mixture which
is generally Argon based. A filler metal may also be added manually in some circumstances
depending on the welding application.
Gas Cup
Either Ceramic,
High-lmpact or
Water Cooled
Work Piece
can Be Any Commercial
Metal
Welds Made With or
Without Addition
of Filler Metal
TIG Welding Application Shot
4.2 Joint froms in TIG
a butt joint
b lap joint
4.3 The explanation of welding quality
The relation of welding area color & protect effect of stainless steel
Welding area color
argent,golden
Protect effect
best
The relation of welding area color & protect effect of Ti-alloy
Welding area color bright argent orange-yellow blue-purple caesious white powder
Protect effect
best
better
04
4.4 TIG parameters matching
The corresponding relationship between gas nozzle
diameter and electrode diameter
Welding technique
Metal
Tungsten Electrode
Non-Consumable
Inert Gas
Shields Electrode
and Weld Puddle
c coner joint
d T joint
red-grey
grey
blue
black
good
worst
better
bad
of titanium oxid
good
bad
worst
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