Say you want to create a social network for soccer moms to chat and commune. Instead of building up the social site first and relying on the 8 soccer moms you know to get it going, it's better to create a blog with tips targeted toward soccer moms. Build it up with stories and useful tips other soccer moms need.
The main composition of a soldering iron is a metal tip, which is heated in an insulated handle by either gas combustion or electricity. Today, electronics soldering iron is widely used in repair jobs, installations, electronic assemblies and so on. It is also used for pyrography as well as plastic welding, although very rarely seen.
S oldering; very simply put is 'gluing' two pieces of metal together by applying heat and melting a third metal or alloy into the joint. This third metal or 'solder' must melt at a lower temperature than the metal being soldered and be able to adhere to the surfaces being joined. N ot all metals can be soldered easily. Copper, Brass, Bronze, Nickel and Tin are all metals that can be soldered at soldering iron and propane torch temperatures (400-800f) and use solders and fluxes that are readily available. Aluminum and stainless steel do not solder easily.