Heated Air Knife for Removing Solder From Contacts
Original Publication Date: 1987-Jan-01
Included in the Prior Art Database: 2005-Jan-31
A heated air knife is shown in Figs. 1 and 2 which provides a non-contact technique which removes soldered contacts from printed circuit cards/boards. This air knife provides a flow of hot air which blows off the contacts and removes all solder. Figs. 1 and 2 show the air knife. Two important dimensions are: 1. The orifice diameter: 4 mm 2. Orifice angle: 15 degrees This angle is established by the orifice axis and the vertical axis. This orifice is on one side of the air knife so that it can be mounted as close as possible to the outlet of the heating chamber. Therefore, the solder and contacts would be blown off as soon as they exit the heat chamber.