Soldering is the process of joining two or more metals together by melting and flowing a filler metal having a lower melting point (normally Tin) into the joint. Soldering can be used to solder components to PCB or component leads to cables.
When manual soldering reed contacts, care should be taken that the solder tip dwell is less than 2 seconds.
Soldering (AmE: //, BrE: //) is a process in which two or more items are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal. Unlike welding, soldering does not involve melting the work pieces. In brazing, the work piece metal also does not melt, but the filler metal is one that melts at a higher temperature than in soldering. In the past, nearly all solders contained lead, but environmental and health concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes.