N2 and O2 all have a quadrupole&comma; for the reason that the quadrupole of N2 is bigger than the quadrupole of O2&comma; the adsorption capacity by molecular sieve to N2 is stronger than O2&period; When the compressed air in certain pressure flow through adsorption bed formed by molecular sieve&comma; the N2 gas is absorbed and O2 is obtained by separation&period; The main part of O2 generator is two towers filled with molecular sieve&comma; when the compressed air get into adsorption tower&comma; the N2 is absorbed by molecular sieve&comma; O2 is produced from the export terminal&period; When one tower produces O2&comma; another tower release the N2 by reducing the pressure to get the renewable desorption of carbon molecular sieve&period; Two towers alternate adsorption and regeneration to output O2 continuously&period;

Application Overviews

In the reflow soldering of SMT&comma; nitrogen gas is charged into reflow furnace&period; The following advantages of soldering are listed in the nitrogen atmosphere&colon; 1&period; The quality of soldering is enhanced with the prevention of surface oxidation&period; 2&period; The flux is guaranteed to the correct activation&period; 3&period; The surface of soldering is more handsome&period;