Soldering
Soldering
Soldering is the process to join metal surfaces together with a solder, a filler metal called, involving heating surfaces to join and melting the solder, then cool down and solidify for strong joints.
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Solder
Solder
Is a metal alloy made by metal combination like tin, lead, silver, copper, in many propportions, like 50/50, 60/40, or Sn 63 that tells 63% tin.
Leaded solder has low melting point, varying on the ratio of tin to lead. But lead is very pollutting, poisonous to environments.
Lead-free solder has a melting point higher than leaded solder. The drawback is that harder to make good joins. Colleges use lead-free solder.
a roll of lead free wire
The R.S.R Electronics Inc. warning:
"This product can expose you to chemicals including DEHP [1.4] which is known to the State of California tocause cancer and to cause birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov [3]"
Alloy temperature chart
Alloy temperature chart
[2]
Basic methods
Basic methods
Soldering methods are reliable to form good electrical path. Most tech today is dependent on reliability of numerous individual soldered connections, with 3 requirements:
Parts are clean.
A proper solder alloy are used.
Sufficient heat are properly used.
the Hakko FX-8801 65W
Solder station
Solder station
A solder station
Hakko FX-8801 65W solder iron with a 70W selectable preset temperature station.
This lead-free solder melts at ~235°C = 455°F, but the soldering tip must be hotter. The station automatically keeps a temperature. In a lab, we often set the temperature at 360°C = 675°F. A quality soldering station heats the tip in seconds upon enabled and keep its tempreature.
References
References
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