Flashcards in Soldering Deck (13):
What is soldering
Soldering is a low temperature joining used for small electrical components using a low melting point lead free Solder.
What happens to the Iron during soldering
it rests on a stand for safety.
What happens to the Iron when it gets hot
When it is hot the tip of the Iron must be cleaned on a wet sponge and tinned (covered in the layer of solder).
What happens when the Soldering Iron gets hot
When the Soldering Iron beomes hot the Soldering Iron is kept in a place and Solder is applied, which flows around the joint, bonding the surface together.
How is Copper joined
By using a technique called Brazing
What is Brazing
Brazing gives a permanent joint, ideal for most metalworking projects in schools and colleges.
What does the extractor do when you are Brazing
It extracts any fumes.
What is a Flux
A Flux is powder mixed with water to produce a paste which is brushed along the joint.
Which is the hottest part of the flame when Brazing
The blue part.
What is used to contain the heat from the gas torch and protect workbenches
What do Firebricks do
They are also used to raise both pieces off the Firebrock surface so the gas can flow around the Steel
What happens to the Copper during Brazing
It is heated gently by the moving flame around the Steel, raising the temperature slowly.
The Copper ecpands slowly and the water in the Flux evaporates. The remaining Flux protects the metal from oxidation and allows the silver solder to flow into the joint.