Trumpf LASERCELL 1005, Operator'S Manual

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B337EN02.DOC
Installation conditions TLC 1000 and TLC 1005 - Version 5
2-15
2.2 Cutting gases
Purity
Cutting gas Purity
Oxygen (O
2
) 3.5 99.95 % vol.
Nitrogen (N
2
) 5.0 99.999 % vol.
4
Cutting gas – purity
Note
In exceptional cases, nitrogen of the purity 4.6 (99.996) or of other
levels of purity can be used as long the following limit values are
not exceeded:
•
O
2
≤
100 ppm
•
H
2
O
≤
5 ppm
•
CnH
m
≤
1 ppm
Gas consumption
The cutting gas consumption depends on:
•
Nozzle diameter.
•
Cutting gas pressure.
•
Duration of the laser cutting.
To help you get a rough estimate of the potential cutting gas
consumption, consumption values with standard and high-pressure
cutting are shown below. For a differentiated estimate on certain
types of material and material thicknesses, refer to the data
collection of the machine.
4
When using nitrogen with low purity, oxygen impurities starting at 100 ppm
can cause discoloration of the cutting edges during high-pressure cutting.
This can be avoided only by using nitrogen with a purity of 5.0 or by using
a cutting gas supply with the gas tank (the nitrogen purity is generally 5.0
in the gas tank).
Table 2-8
Estimating the gas
consumption