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Hot-air soldering

Discussion in 'Electronic Design' started by Klaus Vestergaard Kragelund, Oct 7, 2003.

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  1. Hi

    I just saw a article on a Weller WHA series hot air soldering station. I
    have plenty of experience with standard soldering irons, but why does some
    hot-air stations use nitrogen as the hot-air medium?

    And the article mentioned compressed air, isn't the hot-air principle just a
    matter of heating up air from the laboratory surroundings or is there a
    reason like contamination of the solder?

    Cheers

    Klaus
     
  2. Oxygen has a tendancy to make things oxidize or rust. Combined with higher
    than normal pressure and significantly higher than normal temperatures, the
    oxidation reaction occurs much faster than the every day rust we see. As
    nitrogen is not very reactive, someone must believe that less powerful flux
    will be needed if their soldering station uses it rather than ambient air.
    I'm not sure what compressed air would be good for.

    Howard Henry Schlunder

    in message
    news:3f830fc9$0$24686$...
     
  3. Henry

    Henry Guest

    Nitrogen is the lowst-cost inactive gas.
    - Henry

    Klaus Vestergaard Kragelund schrieb in Nachricht
     
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