G.Weike Laser
Profession Laser Manufacturer more than 15 Years.
30
The diameter of nozzle
The cutting pressure
The laser cutting time
Cutting gas consumption estimates: the following is a list of cutting consumption
when cutting in the standard pressure and high pressure , so as to estimate
about the cutting gas consumption, use machine of the accumulation of data to
estimate the determine material varieties and different material thickness.
Standard pressure cutting: It is to point to the nozzle exit pressure is less than 6
bar cutting. Need oxygen or nitrogen as cutting gas. Using O
2
for cutting under
the condition of standard pressure, the available flowing pressure at joint of the
machine tool at least ten bar(when the gas consumption is10 Nm
3
/h, nozzle
export Ø 1.7 mm, and cutting pressure of 6 bar) .
High cutting: Cutting refers to the high pressure nozzle pressure is greater than
6 bar cutting. In general use nitrogen as cutting gas, a small number of cases is
also used by oxygen. high pressure cutting as a option to provide for processing
of stainless steel and aluminum profile.
c
）
The input pipe for supply cutting gas Cutting gas connection position
Cutting gas input line by the user to the entrance of machine tool joint.
Gas supply pipe must be installed to Ann in the figure shows the connection
location. Piping arrangement must be at least 150 mm from the ground, the
pipes which in the front of the connecting position must have at least 1 m area
for free configuration, so that when change the filter the pipe can be bent down
to come over.(Please refer Picture 3-1)
The installation of a complete set of gas transmission system, Such as the gas
container or tank of gas supply to the machine,are accomplished by a pipe. The
carburetor must be designed to able to comply with all of the connection
machine tool to by the biggest consumption. So that laying pipeline from the
carburetor to the machine tools must be as short as possible.when external gas
transmission system design and installation, be aware avoid the machine
connect the input line and the connection position ice up.A stop cock must be
installed in each input pipeline which connect to a single machine. In order to
make the input line can stop input by the stop cock (for example, in the case of
serving),it could also exhaust for the jet valve which in the machine connection.
Note: gas temperature is not allowed exceed 50
℃
, it is useful when
Raised Pressure Device produce the needed gas pressure.
.
Cylinders or a set of cylinders
Users should buy the cylinders and gas valve, at local markets.There are some
suggestion for the using of cylinders only for your reference.
To the cylinder pressure reducer used in cylinders or cylinder group is the
simplest way of cutting gas supply, but require a large amount of manual work
according to consumption. A set of gas cylinder group contains 12 gas bottle =
about120 Nm
3
gas.
Air will interrupt when replacement cylinder or cylindergroup.
