Soldering & Brazing (Junior Cert Engineering): Flashcards

Permanent joints

Alloy of lead and tin

$183°C$

Prevents oxidation during soldering

Removes oxides and prevents further oxidation

Electrical and electronic work

Copper

Alloy of silver, copper and zinc

$600°C$ to $830°C$

Brass used for brazing

$60$ copper and $40$ zinc

Approximately $900°C$

Joining by tinning surfaces, then heating until solder re-melts

Draws molten solder between closely fitting parts

To allow solder to properly alloy with base materials