Piranha CNC Plasma Cutting Table, Руководство по эксплуатации

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SAFETY
Sept-2018
11
TOXIC FUMES
Proper precautions must be exercised to prevent the exposure of others in the
vicinity to toxic fumes that may be generated while plasma cutting.
Certain chlorinated solvents such a perchloroethylene and trichlorethylene will
decompose under ultra violet radiation to form phosgene and other gasses. Care
must be taken to avoid the use of these solvents on materials being cut with plasma
arc cutting equipment. Containers of these solvents and other degreasing agents
should be removed from the immediate area around the plasma arc.
Metals coated with or containing significant amounts of lead, cadmium, zinc,
mercury or beryllium can produce harmful concentrations of toxic fumes when the
plasma arc cuts. Adequate local exhaust ventilation must be used or the operator
must be supplied with special equipment to guarantee a supply of fresh air such as a
respirator or air supplied helmet.
Metals coated with materials that emit toxic fumes must not be cut unless:
1. The coating is removed prior to cutting.
2. The area is adequately ventilated.
3. The operator is supplied with fresh air breathing equipment.
AIR CONTAMINATION
The plasma cutting process generates large quantities of hot metal dust and fumes
that would be hazardous if uncontrolled.
A blower pulls a vacuum through the fume extraction assembly in the bed of the
machine. The blower pulls the dust-laden air through a customer supplied filter
before exhausting the air to the environment.
The gases listed below either are produced normally during plasma arc cutting or
can form under certain conditions.
Ozone
Ozone is produced by the reaction of the plasma arc's ultraviolet radiation with oxy-
gen in the air. Uncontrolled, excessive levels of ozone can constitute a hazard.
When there is proper venting to the outside and the machine's internal ventilation
system is functioning properly, there is adequate control of ozone during torch
cutting.