Patent ID: 6564458
Filing Date: 2003-05-20
Classification: B23K,H01L,Y10T

Abstract:
A manufacturing method of a radiator comprising the steps of:(1) manually or mechanically fitting a frame onto a corrugate fin made of Al or an Al alloy and bent into a corrugated shape; (2) a first plating accomplished by a step of manually or mechanically grasping said frame, moving it into a heated recess of a movable solder bath filled with a molten first solder alloy, horizontally moving said movable solder bath while the lower ends of said corrugate fin are dipped in said molten first solder alloy and the lower ends are in a friction state with the bottom surface of said recess, and then applying the first plating of said molten first solder alloy onto the lower ends of said corrugate fin; (3) a second plating accomplished by a step of heating and melting second solder alloy on a base plate made of one of Cu, a Cu alloy, Al and an Al alloy, rubbing said base plate with a metallic brush which is manually or mechanically moved in a horizontal direction, and then applying the second plating of said molten second solder thereunto; and (4) manually or mechanically grasping said frame, putting said corrugate fin on said base plate, pressing and heating it on said base plate to thereby melt said first plating and said second plating and to bond said corrugate fin onto said base plate, and then removing said frame from said corrugate fin.