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Best solding methods on solder terminals
Published：2013-04-01 10:42:34 Views：
Safety Counts
Always solder in a well-lit area and give the job your full attention. Solder can get as hot as 700 degrees, so care is paramount.
Prepare Correctly
Tinning is covering the terminal, the soldering iron tip and the wire with solder. Tinning makes the final solder work better.Plug in the soldering iron and hold solder to the tip until it is warm enough to be covered with solder.For most soldering of this type, use rosin core solder. The rosin flux makes the solder adhere better.Strip enough wire to cover the terminal surface and extend just beyond it. This ensures no insulation is in the solder joint and protects against shorts.The wire and terminal should be clean for best connections; steel wool is best for cleaning the terminal. If old solder is on the terminal, heat it with the soldering gun to enable its removal.
Soldering Wires to Terminals
Use a good quality 25 to 30 watt "pen" or "point" soldering iron. A soldering gun generally gets too hot for terminals and wires.
Preferably, use 63/37 solder, but 60/40 is also good. 63/37 melts at a slightly lower temperature: 361 degrees F versus 374 degrees F. The lower melting temperature means the soldering iron doesn't have to get quite as hot, and there's less chance to damage the wire or the terminal.Apply the tinned tip of the soldering iron to the terminal, and when the flux "melds" with, or "wets," the terminal, touch the tinned braids of the wire to the terminal, too. Apply just enough solder to fill any terminal opening and completely cover the wire strands.Remove the soldering iron when the solder "runs" between the wires and terminal, and hold the joint in place until it's cooled enough to solidify. This takes a few seconds.
Good Joint versus Bad Joint
The terminal stays shiny when the soldering is good. The connection is solid metal; there is no barrier or space between the parts of the connection.There is a dull cast if the soldering is bad. It indicates too much heat has been applied. If the dull cast exists, heat the joint again.This method of soldering is especially good for making your own cables for audio and video connections.