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    • 8. 发明授权
    • Aluminum brazing method which avoids waste water
    • 铝钎焊法避免废水
    • US6105850A
    • 2000-08-22
    • US186660
    • 1998-11-06
    • Daniel Clement LauzonThomas Schwarze
    • Daniel Clement LauzonThomas Schwarze
    • B23K1/19B23K3/00B23K35/36B23K35/363C23C2/12B23K1/20
    • B23K35/3605B23K1/19B23K2203/10
    • A method of avoiding generation of waste water while brazing components made of aluminium or an aluminium alloy using a flux, especially a flux composed of an aqueous suspension of potassium fluoroaluminate. Since used suspension is replaced with fresh suspension after a given period of time and the apparatus regularly have to be cleaned, waste water is produced which contains flux, e.g. potassium fluoroaluminate. In the past, such waste water has been discharged into the environment. It has now been discovered that such waste water can be recycled to the brazing process after separation of the flux. In this manner, the production of waste water can be largely avoided. Since surfactants are frequently used, and these are likewise recirculated, a corresponding saving in terms of surfactant is possible. Furthermore, the environment is protected correspondingly.
    • 一种避免产生废水的方法,同时使用助熔剂特别是由氟铝酸钾的水悬浮液组成的焊剂钎焊铝或铝合金制成的组分。 由于在给定的时间段内使用的悬浮液被新鲜的悬浮液代替,并且该装置经常需要清洁,因此产生含有助熔剂的废水, 氟铝酸钾 过去这种废水已经排入环境。 现在已经发现,在分离助熔剂之后,这种废水可以再循环到钎焊过程中。 以这种方式,可以大大地避免废水的生产。 由于表面活性剂经常被使用,并且它们同样被再循环,因此表面活性剂的相应的节省是可能的。 此外,相应地保护环境。