In a fast-paced society, efficiency has become the foundation of survival. In today's increasingly industrialized process, laser tube cutting machines are undoubtedly the representative of efficient cutting tools, and users who know laser cutting machines know that laser cutting machines are in the process of cutting. It is necessary to use auxiliary gas. Today, Longxin Laser will give you a reasonable application of the auxiliary gas of laser tube cutting machine!
The auxiliary gases that can be used in laser tube cutting machines are mainly air, nitrogen, oxygen and argon:
1. Air: Air can be supplied directly from the air compressor, so it is very 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 that of nitrogen. A trace 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 of the incision is yellow. The main materials are aluminum, aluminum alloy, stainless copper, brass, plated steel, non-metal, etc. However, when the quality of the cut product is high, aluminum, aluminum alloy, stainless steel, etc. are not suitable for air because of air. Will oxidize the base material.
2. Nitrogen: Some metals use oxygen to form an oxide film on the cutting surface when cutting. Nitrogen can be used to prevent oxidation-free cutting of the oxide film. Therefore, there is a feature that it can be directly welded, smeared, and has high corrosion resistance. The end face of the slit is whitish. The main applicable plates are stainless steel, plated steel, brass, aluminum, aluminum alloy, etc.
3. Oxygen: mainly used for laser cutting carbon steel. While the oxygen reaction heat is used to increase the cutting efficiency, the resulting oxide film increases the beam spectral absorption factor of the reflective material. The end of the slit is black or dark yellow. Mainly used for rolling steel, rolled steel for welding structure, carbon steel for mechanical construction, high tension plate, tool plate, stainless steel, plated steel, copper, copper alloy, etc.
4. Argon gas: Argon gas is an inert gas. It is used to prevent oxidation and nitriding during laser cutting machine cutting. It is also used in welding. Compared with other processing gases, the price is high and the cost is increased accordingly. The end face of the slit is whitish.
