©
COPYRIGHT 1999 THE ESAB GROUP, INC. LESSON
I, GLOSSARY
Kilowatt
— 1,000
watts Low Alloy
Steels —
Steels containing small amounts of
alloying elements (usually 1½% to
5% total alloy content) which drastically improves their
properties. Non-Ferrous
— Containing
no iron. Example: Aluminum, copper, copper alloys.
Ohm —
Unit of electrical resistance to current
flow. Phase
Transformation
— The
changes in the crystalline structure of metals caused by
temperature and time.
Proton
— Positively
charged particles which are part of the nucleus of atoms.
Rectifier
— An
electrical device used to change alternating current to direct
current. SAE
— Society
of Automotive Engineers Transformer
— An
electrical device used to raise or lower the voltage and inversely
change the amperage.
Volt —
Unit of electromotive force, or electrical
pressure which causes current
to flow in an electrical circuit. Watt
— A
unit of electrical power. Watts = Volts x Amperes
