Gas path installation
Impurities in the welding gas such as hydrocarbons and water vapor will
damage the lens. The following table is the recommended welding gas
specifications. The higher the purity of the gas, the better the quality of
the welding gap.
Impurities can be filtered out in the gas supply pipeline, but oxygen and
water vapor can penetrate the optical system through non-metallic materials,
which is the source of dust and hydrocarbons. It is recommended to use
stainless steel accessories, and a filter that can remove particles as small
as 0.01 microns must be used for purification.
It is recommended to use a pressure gauge with a stainless-steel
diaphragm. Industrial pressure gauges will suck in air, and if a rubber
diaphragm is used, hydrocarbons will be produced due to aging and other
reasons.
HW980 provides 1 way welding gas connection. The outer diameter of the
gas pipe is 6mm. As shown in Figure 4 below.
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