NON-FERROUS METALS Flashcards
-metals that are not derived from iron ore
NON-FERROUS METALS
Easily cast, machined and formed.
Low density, non-toxic, high thermal conductivity
ALUMINUM
ALUMINUM WAS DISCOVERED BY
Hans Oersted (1825)
MEANING OF LATIN WORD ALUMEN
BITTER SALT
Hard, shiny and strong metal
Strong as steel but much less dense
Used in aircraft, spacecraft, missiles (low density, withstand extremes of temperature)
Power plant pipes uses titanium (resistance to corrosion and heat)
Surgical applications (connects to bone easily) (hip joints and tooth implants)
Paint pigment for UV protection, with excellent covering power
TITANIUM
alloying agent OF TITANIUM
aluminum, molybdenum and iron
DISCOVERED TITANIUM
William Gregor (1791)
TITANIUM IS DERIVED FROM
Titans, the sons of the Earth goddess of Greek mythology
Silvery-white metal, ignites easily in air, burns with bright light
Lightweight used in (car seats, luggage, laptops, cameras and power tools)
Used in fireworks and sparklers
MAGNESIUM
DISCOVERED MAGNESIUM
Joseph Black (1755)
MAGNESIUM IS DERIVED FROM WORD
Magnesia, district of Eastern Thessaly in Greece
Metal with very high thermal and electrical conductivity
Reddish-gold metal that is easily worked and drawn into wires because of its malleability and ductility
Used in coins along with silver and gold, gun metals, electrical wires and motor wirings
COPPER
used in agricultural poison and algicide in water purification
Copper sulfate
COPPER IS Derived from old English name ‘coper’
‘cyprium aes’ meaning metal from Cyprus
LOW MELTING TEMPERATURE ALLOYS
BEND ALLOY - WR 70, LENS ALLOY-WR47 & WR58, PRESS ALLOY-WR137
William Rowland
Extensively used alloys in industry due to its primary characteristics of expansion on solidification from molten state
70-degree Celsius melting point
BEND ALLOY - WR 70
Bismuth-based fusible alloys
58 and 47 degrees is ideal temp for grinding of lenses
LENS ALLOY-WR47 & WR58
added to LENS ALLOY TO have considerably lower melting point.
INDIUM
It has greater hardness and tensile strength than other fusible alloys
Exhibits minimal expansion upon solidification from the molten state
Useful for holding machined parts where shrinkage or expansion may deform the finished part
PRESS ALLOY-WR137
range of low temperature alloys based on tin, lead, bismuth that are suitable for the production of jewelry, models, figures, artwork, collectibles, ornaments and memorabilia
CASTING ALLOY
CASTING ALLOY IS BASED IN THESE ELEMENTS
tin, lead, bismuth
