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Nitrogen Gas Generator Outline


OUTLINE
This membrane segregation system enables the generation of highly concentrated (99.9-95%) nitrogen gas merely by supplying compressed air. It is possible to obtain highly concentrated (99.9-95%) nitrogen gas only by adjusting the flow at the nitrogen outlet and supplying air pressure.

*Nitrogen (N2)
About 78% of the atmosphere is nitrogen and about 21%, or the remainder, is oxygen. Oxeygen is an active gas that promotes the respiration of living things. Nitrogen is an inactive gas that is difficult to combine with other substances.

EXAMPLES OF LEAD-FREE SOLDER IN N2 ATMOSPHERE
(Pattern for QFPIC of 0.65mm pitch)



*1: Condition data shall be established as a standard that allows acceptable products when soldered using a soldering robot(LS-5TPS III).


EFFECTS OF NITROGEN GAS SOLDERING

  • Soldering without oxide film is possible.
  • Bubbles (cavities) formed in the section of soldered parts are reduced.
  • Faulty soldering such as cold joints, dry joints and insufficient wetting are reduced.
  • Solder spreading ratio is increased.
  • Soldering involves fewer solder bridges, floats and horns.
  • Cycle time required for soldering is reduced.
  • The height of fillets is stabilized.
  • Insufficient gloss due to overheating is reduced.
  • The number of solder balls and solder flux splashes is reduced.
  • The life of iron tips is prolonged.
  • The number of bad or cold joint is reduced.
  • The amout of residual flux is remarkably reduced. (The amout of residual flux is usually 2-3%, but it is reduced even further to 1% when nitrogen gas is used.)


PRINCIPLE OF SEGREGATION MEMBRANE SYSTEM
 

GENERATOR FLOW SHEET(UNX-200)

 


Catalog Download

 

 

     
 
 
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