Method for laser beam- or plasma cutting or connecting materials, comprises adding inert auxiliary gas containing a slight oxygen content, to a gas or gas mixture reacting with oxygen

摘要

The method for laser beam- or plasma cutting or connecting materials, comprises adding inert auxiliary gas containing a slight oxygen content, to a gas or gas mixture reacting with oxygen. The oxygen content is less than 0.1%. The portion of the gas or gas mixture added to the auxiliary gas is 5 times greater than the oxygen portion of the auxiliary gas or is 0.01-2%.