Title: Use of common metals and alloys
1Use of common metals and alloys
2The introduction of ONE common metal and ONE
alloy
Metals copper
Copper is a light reddish metal. It is strong but
pliable in texture. It has excellent
extensibility and high heat and electricity
conductivity It can form alloys with zinc, tin,
lead, mangese, cobalt, nickel and aluminium,
which can be classified into three kinds brass
is the alloy of copper and zinc bronze is the
alloy of copper and tin white brass is the alloy
of copper, cobalt and nickle. Copper is a very
useful nonferrous metal. It can widely used in
electricity, light industry, and machinery
manufacturing,etc. In China the annual
consumption of copper comes second, less than
that of aluminium.
3Alloy bronze
- Bronze is a mixture of the metals copper and tin.
It is called alloy. It is a yellowish brown
alloy. - Its properties
- malleable
- very corrosion resistant
- strong
Two daily life uses of each item
95 copper 5 tin
4Two daily life uses of each item
- Copper
- to make wires
- water pipes
- Bronze
- ornament
- statue
- church bell
- ship propeller
5The choice of uses of each item
- Copper
- ductile
- good conduct of electricity
- strong
- malleable
- resists corrosion
- Bronze
- yellowish brown appearance
- malleable
- very corrosion resistant
- strong
- resistant to wear
6Diagrams for each use
Copper
Bronze