Metals alloys and polymers Flashcards
What are 3 non-ferrous metals called containing iron?
.cast iron
.low carbon steel
.and high carbon steel
What does non-ferrous mean?
Does not rust.
Name 5 non ferrous metals?
.Aluminium
.Brass
.Copper
.Tin
.Zinc
What does thermoforming mean?
Doesn’t resist heat very well, and can be moulded into shapes easily by heating it.
Name 6 thermoforming plastics?
Acrylic,HDPE,PET,HIPS,PVC and PP
What is a thermosetting plastic?
They can resist heat, and undergo a chemical change when heated to make them permently become hard and ridged.
What are 5 types of thermosetting plastics?
. epoxy resin
. UF
. MF
. PF
. polyester resin
What are 2 properties of Acrylic?
.weather resistant
.hard and shiny
. used to make thinks like helmet visors and signs.
What are 2 properties of HDPE?
.Light weight but strong
. used to make thinks like bowls baskets and fold-up chairs.
What are 2 properties of PET?
.light strong and tough
.used to make see-through drinks bottles
What are 2 properties of HIPS?
.fairly cheap and rigid
.used for vacuum forming.
What are 2 properties of PP?
.tough and flexible
.wide variety of colours
.used to make plastic chairs.
What are 2 properties of PVC?
.quite brittle and cheap and durable.
.used for window frames and vinyl records.
What are 2 properties of epoxy resin?
.corrosion resistant
.good electrical insulator
.rigid and durable
.used for circuit boards
What are 2 properties of UF?
.good electrical insulator and hard and brittle.
.used for plug sockets
What are 2 properties of MF?
.strong and scratch resistant.
.used to laminate chipboard.
What are 2 properties of PF?
. hard and heat resistant
. easily moulded
. bottle caps and snooker balls
What are 2 properties of PR?
.hard stiff and cheap.
.good electrical insulator.
.added to fibres to form glass-reinforced plastic.
.waterproof-so can be used in shower stalls and garden furniture.
