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GCSE Design Tech > Topic 1 - Classification Of Metals > Flashcards

Topic 1 - Classification Of Metals Flashcards

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1
Q

What are the 2 different groups metals are classified into?

A

Ferrous

Non ferrous

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2
Q

What are some properties of ferrous metals?

A

It’s found in the earths crust in rock know as haematite (iron ore)

Contains iron
It’s usually magnetic
Will rust

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3
Q

What are some types of ferrous metal

A

Cast iron
Low carbon steel
High carbon steel

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4
Q

What are some properties of cast iron

A

Hard surface
Brittle core
Strong
Can be cast into intricate shapes such a vices, roadside grids and manhole covers

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5
Q

What are some properties of low carbon steel

A 
Good tensile strength
Is malleable 
Poor resistance to corrosion 
Used in the automotive industry 
Steel structures
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6
Q

What are some properties of high carbon steel

A

Harder than low carbon steel but brittle

Used in manufacture of tools

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7
Q

What are some properties of non ferrous metals?

A 
Found in the earths crust in a rock know as ore
Doesn’t contain iron
Isn’t magnetic 
Will not rust 
Malleable
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8
Q

What are some different types of non ferrous metals

A

Aluminium
Copper
Zinc
Tin

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9
Q

What are some properties of aluminium

A 
Lightweight 
Soft 
Ductile
Malleable 
Used for aircraft, canned drinks and bike frames
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10
Q

What are some properties of copper

A

Ductile
Malleable
Excellent thermal and electrical conductor
Easily soldered
Resistant to corrosion
Used for pipes and fittings in plumbing and manufacture of wire

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11
Q

What are some properties of zinc

A

Highly resistant to corrosion, low melting point, easily worked, weak, pure metal
Used as coating on steel to protect against corrosion
Used in die casting

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12
Q

What are some properties of tin

A 
Highly resistant to corrosion 
Low melting point 
Easily worked 
Weak
Pure metal 
Used as a coating on steel
Used as a coating on food cans and used in soft solder
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13
Q

What are an alloy

A

A mixture of two or more metals that are combined to improve the mechanical or physical property of the original metal

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14
Q

What are the 2 categories alloys are divided into

A

Ferrous

Non ferrous

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15
Q

What is an example of a ferrous alloy

A

Stainless steel

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16
Q

What are some properties of stainless steel

A

Mixture of steel, chromium, nickel and magnesium. It’s very hard, very resistant to corrosion and can k to a high quality shiny finish
Using in cutlery, surgical equipment

17
Q

What are some examples of non ferrous alloys

A

Brass

Duralumin

18
Q

What are some properties of brass

A

Mixture of copper and zinc
Very resistant to corrosion, strong, ductile, malleable and is a very good thermal and electrical conductor
Used to make taps and pluming fittings

19
Q

What are some properties of duralumin

A

Mixture of aluminium, copper, magnesium and manganese
Is light with, soft, ductile and malleable
Used in the manufacture of aircraft structures and fuel tanks

GCSE Design Tech (10 decks)

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