DT edexcel product design - Sheet1 Flashcards
What is a thermoplastic?
A material that can be molded or formed when heated.
What is a thermoset?
A material that becomes permanently hard and rigid when heated or cured.
What are the properties of LDPE?
Low density, low stiffness, and good chemical resistance.
Commonly used for detergent bottles, toys, and carrier bags.
What are the characteristics of acrylic?
Tough, hard, durable, and easily machined.
Used in light units, car light lenses, and illuminated signs.
What is HDPE used for?
Good stiffness and chemical resistance.
Commonly used for milk containers and soft drink bottles; it may also be used for landfill liners.
What is PET’s chemical resistance?
Moderate chemical resistance.
Used in blow moulding, electrical plugs, and sockets.
What are the properties of PVC?
Good chemical resistance, weathering resistance, hard, tough, lightweight, and can be coloured.
Used for flexible hoses.
What is ABS known for?
High impact strength, good toughness, scratch resistance, lightweight, and durable.
Commonly used for kitchen products, mobile phones, and toys.
What is epoxy resin used for?
An electrical insulator that resists chemicals well but is brittle unless reinforced.
Used for adhesives, bonding of other materials, and encapsulation of electrical components.
What are the characteristics of urea formaldehyde?
Rigid, hard, good strength, brittle, heat-resistant, and a good electrical insulator.
Commonly used for electrical fittings and adhesives.
What is polyester resin?
Rigid, brittle, and has good chemical resistance.
Used for casting.
What are the properties of GRP?
Good strength to weight ratio,
Durable,
Corrosion resistant,
Minimal maintenance
Boyant
Strong as steel
What are ferrous metals?
Metals that contain iron and are utilized in the production of iron and steel.
What are non-ferrous metals?
Metals that do not contain iron, do not rust, and are not magnetic but are prone to corrosion.
What is aluminum used for?
Commonly used for kitchenware and is an excellent electrical conductor.
What is copper used for?
Used in electrical contacts, water pipes, and electrical cables.
What is zinc used for?
Used for galvanizing and can be die cast to produce high detailed products like locks.
What is tin used for?
Used for steel-plate coatings and food cans.
What is duralumin? What is it used for?
Alloy made of aluminium and copper
Used for structural components in aircraft.
What is brass used for?
Commonly used for cast valves, taps, boat fittings, and ornaments.
What are the properties of stainless steel?
Tough, wear, and corrosion resistant.
Commonly used for sinks, cutlery, and sanitary ware.
What is mild steel used for?
Commonly used for nuts, bolts, washers, and car bodies.
What is high carbon steel used for?
Used for hand tools, scribers, dot punches, and chisels.
What is medium carbon steel used for?
Used in garden tools and springs; strong and hard but less ductile, tough, or malleable.