hello. this is something i've noticed for a long time. in my motorcycle the solder joints are not shiny silver color ones. they are black in color. i could see solder joints in a few places. specially inside the handle bar switch assemblies and at the bottom of the ignition barrel. those parts are OEM parts. i checked some google photos of different Honda motorcycles and they have the same black color solder joints. if you check the below picture you can clearly see it.
i have two questions
1) is that a paint/protective coating ? or is that a special solder itself ?
2) i got to know that solder joints + vibration is not a good combination. wouldn't it be a problem in high tech machines like fighter jets? saw some videos of Lockheed Martin company. they use thousands of wires and circuits. i couldn't see any alternative to soldering. i just asked since the stress/vibration applied to the parts is enormous in those machines. it's obvious that there's no room for any error.
thank you
i have two questions
1) is that a paint/protective coating ? or is that a special solder itself ?
2) i got to know that solder joints + vibration is not a good combination. wouldn't it be a problem in high tech machines like fighter jets? saw some videos of Lockheed Martin company. they use thousands of wires and circuits. i couldn't see any alternative to soldering. i just asked since the stress/vibration applied to the parts is enormous in those machines. it's obvious that there's no room for any error.
thank you