Materials Flashcards

1
Q

Materials

Wood

A

Hardwoods - slow growing, expensive (balsa, jelutong)

Softwoods - fast growing, cheap, easy to cut (pine)

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2
Q

Materials

Plastics

A

Thermoplastics - plastics which can be re-heated
Acrylic, styrofoam, expanded polystyrene, polyethylene (PET), polypropylene (PP), polyvinyl chloride (PVC)
Thermosetting - plastics which cannot be re-heated

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3
Q

Materials

Metal

A

Ferrous - metals containing iron (steel)

Non-ferrous - mats not containing iron (aluminium, tin)

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4
Q

Materials

Glass

A

Raw materials are Quartz sand, limestone and soda heated and either pressed or blown

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5
Q

Materials

Composites

A

MDF (medium density fibreboard) - fibres of soft wood formed under pressure to make smooth sheets
Carbon fibre - fine strands of carbon woven into a fabric sheet. Extremely thin but extremely strong

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6
Q

Materials

Paper

A

GSM - grams per square meter

Tracing, cartridge, copier, folding box board, corrugated board

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