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section 6
Warning
Warning
Warning
Warning
possible explosion hazard from plasma cutting aluminum-lithium alloys!
Aluminum-Lithium (Al-Li) alloys are used in the aerospace industry because of 10% weight
savings over conventional aluminum alloys. It has been reported that molten Al-Li alloys
can cause explosions when they come into contact with water. Therefore, plasma cutting
of these alloys should not be attempted in the presence of water. These alloys should only
be dry cut on a dry table. Alcoa has determined that "dry" cutting on a dry table is safe
and gives good cutting results. DO NOT dry cut over water. DO NOT water injection cut.
The following are some of the Al-Li alloys currently available:
Alithlite (Alcoa)
Alithally (Alcoa)
2090 Alloy (Alcoa)
X8090A (Alcoa)
X8092 (Alcoa)
For additional details and information on the safe use from the hazards associated with
these alloys, contact your aluminum supplier.
oil and grease can Burn Violently!
•
Never use oil or grease on this torch.
•
Handle torch clean hands only on clean surface.
•
Use silicone lubricant only where directed.
•
Oil and grease are easily ignited and burn violently in the presence of
oxygen under pressure.
hydrogen explosion hazard.
Do Not Cut Underwater With H-35! Dangerous buildup of hydrogen gas is possible in
the water table. Hydrogen gas is extremely explosive. Reduce the water level to 4 inch-
es minimum below the workpiece. Vibrate plate, stir air and water frequently to prevent
hydrogen gas buildup.
spark hazard.
Heat, spatter, and sparks cause fire and burns.
•
Do not cut near combustible material.
•
Do not cut containers that have held combustibles.
•
Do not have on your person any combustibles (e.g. butane lighter).
•
Pilot arc can cause burns. Keep torch nozzle away from yourself and
others when activating plasma process.
•
Wear correct eye and body protection.
•
Wear gauntlet gloves, safety shoes and hat.
•
Wear flame-retardant clothing that covers all exposed areas.
•
Wear cuffless trousers to prevent entry of sparks and slag.
pt-36 plasma torch
X8192 (Alcoa)
Navalite (U. S. Navy)
Lockalite (Lockhead)
Kalite (Kaiser)
8091 (Alcan)
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Troubleshooting
