The application of nitrogen in laser cutting nitrogen machine

According to the auxiliary gas used, laser cutting can be divided into two cutting methods: oxygen and nitrogen.

In oxygen cutting oxygen participates in combustion and the melting position temperature is close to the boiling point. High temperature leads to violent reaction and can not ensure smooth section; In addition, oxidation reaction and increased heat affected zone make the cutting quality relatively poor, easy to appear the quality defects such as slit width, cross section twill, poor surface roughness and welding slag. In nitrogen cutting, the material is melted entirely by laser energy, and the nitrogen gas blows out the slit and avoids inappropriate chemical reactions. The temperature of the melting point area is relatively low, coupled with the cooling and protective effect of nitrogen, the reaction is smooth and uniform, and the cutting quality is high. The section is fine and smooth, the surface roughness is low, and there is no oxide layer.