◆Take care that there is sufficient ventilation during welding.There is at least 30cm free
disstance between the machine and wall.
◆The content of dust,acid,corrosive gas in the surrounding air or substance can not
exceed normal standard.
◆Preferably site the machine some angles above the floor level, the maximum angle
does not exceed 15˚.
◆Height above sea level is below 1000m.
◆Operation temperature range: -10˚C~+40˚C.
◆Relative humidity is below 90% (20˚C).
3.5 Operation environment
3.6 Operation notices
◆In case closing the power switch, no-load voltage may be exported.Do not touch the
output electrode with any part of your body.
◆Connect the ground wire the machine directly.
◆Ensure good ventilation of the machine to improve duty ratio.
◆Turn off the engine when the operation finished to economize energy source.
◆Before operation,no concerned people should be left,Do not watch the arc in
unprotected eyes.
◆Read safty instruction and Chapter 1 carefully before attempting to use this equipment.
◆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.
TIG Welding Application Shot
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
Metal
Work Piece
canBe Any Commercial
Metal
Welds Made With or
Without Addition
of Filler Metal
Inert Gas
Shields Electrode
and Weld Puddle
Tungsten Electrode
Non-Consumable
a butt joint b lap joint c coner joint d T joint
4.2 Joint froms in TIG
Protect effect
best better
good
bad
worst
Welding area color bright argent orange-yellow
blue-purple
caesious
white powder
of titanium oxid
The relation of welding area color & protect effect of Ti-alloy
4.3 The explanation of welding quality
The relation of welding area color & protect effect of stainless steel
Protect effect
best better
good
bad
worst
Welding area color argent,golden
blue
red-grey
grey
black
4.4 TIG parameters matching
The corresponding relationship between gas nozzle
diameter and electrode diameter
04
Operation
Welding technique
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