1.Air
Air can be provided directly by the air compressor, so it is relatively cheap compared to other gases. Although the air contains about 20% oxygen, the cutting efficiency is far less than that of oxygen, and the cutting ability is similar to nitrogen. A small amount of oxide film appears on the cut surface, but it can be used as a measure to prevent the coating layer from falling off. The end face of the incision is yellow.
The main applicable materials are aluminum, aluminum alloy, stainless copper, brass, galvanized steel, non-metal, etc., but when the quality requirements of the cutting products are high, aluminum, aluminum alloy, stainless steel, etc. are not suitable for air because air Will oxidize the base material.
2.Nitrogen
Some metals use oxygen to form an oxide film on the cutting surface when cutting, and nitrogen can be used to prevent the oxidation-free cutting of the oxide film. Therefore, it has the characteristics that it can be directly welded and painted and has high corrosion resistance. The incision end surface is white.
The main applicable plates are stainless steel, galvanized steel, brass, aluminum, aluminum alloy, etc.
3.Oxygen
It is mainly used for laser cutting of carbon steel. The use of oxygen reaction heat large-format increases the cutting efficiency, and the resulting oxide film increases the spectral absorption factor of the reflective material's beam. The end face of the cut is black or dark yellow.
Mainly suitable for rolled steel, rolled steel for welded structure, carbon steel for mechanical structure, high tension plate, tool plate, stainless steel, electroplated steel plate, copper, copper alloy, etc.
4.Argon
Argon is an inert gas. It is used to prevent oxidation and nitridation in laser cutting and is also used in welding. Compared with other processing gases, the price is higher and the cost is increased accordingly. The incision end surface is white.
The main applicable materials are titanium and titanium alloys.
Post time: Jan-16-2020
