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Product design exam revision
Beschreibung
Mindmap am Product design exam revision, erstellt von soniamartinelli1 am 19/03/2014.
Mindmap von
soniamartinelli1
, aktualisiert more than 1 year ago
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Zusammenfassung der Ressource
Product design exam revision
Biodegradeable polymers
Examples
Polylactide
Can be made into films to make plastic bags
Biopol
Can be blow moulded into bottles
Applications
Food packaging
Has short life cycle so needs to biodegrade if sent to landfill to protect environment
Detergent sachets
Surgical stitches
Plastic bottles
Plastic bags
Smart materials
Examples
Thermochromatic sheet
Thermal warning patches
Battery conduction indicators
Jewlery
Will change colour in response to heat
Shows wheather body/water temp. is too hot/cold
SMA
Flexible spectacles
Fire sprinkler control
Dental braces
Non toxic
Will not contaminate patient
Thermochromatic pigment
Thermometers
Baby feeding products
Kettles
Photochromatic pigment
Sunglasses
Sun blocking products
Phosphorescent pigment
Emergency exit signs
Toys
Polymorph
Modelling grip prototypes
COSHH
Protections to comply with regulations
Store product in origional container with correct lables
Dispose of product correctly
Dispose of at authorised recycling centres
PPE precautions
PPE equipment
Goggles
Drilling/Sanding/Welding
Protect from dust
Apron
General workshop activities
Protects from Clothing getting caught in machinery
Gloves
Getting cut on sharp or hot objects
Burning hands
Ear defenders
Using machinery
Damaged hearing after loud noise
Face mask
Sanding/using adhesive
Lung damage from inhalation of dust
Boots
Carrying or installing equipment
Damaged or crushed toes
Signs
Flammable
Toxic
Harmfull
Corrosive
Irritant
Rotational moulding
Mould halves are loaded with amount of thermoplastic ploymer
Mould is clamped together
Mould rotated in a heated chamber, plastic melted
Rotation ensures polymer covers all of interior
Mould is cooled and opened
Advantages
Hollow part can be made in one piece
Ideal for rigid, tough, flexible shapes
No material wastage
Moulds are cheaper than injec. or blow moulding
Even thick walls
Every product the same
Suitable for large production scale
Inexpensive initial set up costs
Disadvantages
Only hollow shapes produced
Manufacturing costs are high
Plastic must be ground into powder
Pine
Indoor furniture
Sustainable timber-sourced from reliable forests
Not suitable for outdoor furniture
Relatively soft/easy to work with
Widely available
Has attractive colour/grain
Suits modern interiors
Finished with variety of stains
Metal effects card
Gift boxes
Available in long wide sheets essential for mass production
Compliant material
Single piece/flexible
Attractive aesthetic quality
Can be embossed with logo
More rigid than standard card
Can be laser cut
Injection moulding
1
Polymer granules added to hooper
2
Polymer moved forward by Archimedean screw
Moved to heaters which melt polymer
3
Archhimedean screw pushed back
Hydraulic ram pushes screw forward and injects polymer
4
Polymer sets mould halves open
Product removed by ejector pins
5
Excess polymer removed
Stainless Steel
Does not corrode when exposed to moisture/air
Corrosion reduces aesthetic appeal
Malleable/Ductile so can be press formed
Attractive silver appearance
Hard, will resist scratches and dents
Chemically resistant can be cleaned with bleach
Press forming
1) Stainless steel sheet unrolled and straightened
2) Sheet punched into blanks
3) Blanks clamped at press
4) Press punches sheet into shape
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