Manifold for heat exchanger and process therefor
AssigneeNorsk Hydro a.s.
InventorsMorten Syslak, Leiv Adne Folkedal, Antonio Baldantoni
Life of this patent
Estimating the term…
Abstract
Manifold for a heat exchanger intended to be joined by brazing or soldering to heat transfer tubes. A portion of a surface of the manifold that will be joined to the tubes is proved with at least one recess in which a brazing material is mechanically locked.
Claims20
A first aluminum article having a surface configured for joining by brazing or soldering to a second aluminum article, a portion of the surface of the first aluminum article being provided with at least one recess in which an amount of brazing material is mechanically locked as a result of cross-sectional shapes of the brazing material and the recess.
A process of producing a first aluminum article having a surface configured for joining by brazing or soldering to a second aluminum article, wherein a portion of the surface of the first aluminum article is provided with at least one recess in which there is mechanically locked an amount of brazing material, the process comprising extruding the first aluminum article to form the recess as at least one groove extending along the extrusion direction, and then mechanically locking the amount of brazing material in the form of a brazing wire inserted into the groove.
A heat exchanger comprising a manifold having a surface configured for receiving tubes to which the manifold is to be joining by brazing or soldering, the surface of the manifold comprising at least one groove in which a brazing wire is mechanically locked as a result of cross-sectional shapes of the brazing wire and the groove.
Dependencies are inferred from the claim text.