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CD Lifecycle

CD Lifecycle. Lauren, Jake, Ben, Fadil. Acquiring material. Aluminum: Primary source is bauxite, which is extracted from the Earth Polycarbonate: Made from crude oil and natural gas Lacquer: Made from acrylic Gold: Mined Dyes: Made from petroleum products. Processing.

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CD Lifecycle

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  1. CD Lifecycle Lauren, Jake, Ben, Fadil

  2. Acquiring material • Aluminum: Primary source is bauxite, which is extracted from the Earth • Polycarbonate: Made from crude oil and natural gas • Lacquer: Made from acrylic • Gold: Mined • Dyes: Made from petroleum products

  3. Processing • Bauxite is washed, crushed, dissolved, filtered, and harvested into a substance called alumina. Alumina is then smelted into aluminum. • Crude oil and natural gas are combined with other chemicals in a manufacturing processing plant.

  4. Manufacturing • An injection moldering machine creates a 1 millimeter thick piece of carbonate, which will serve as the core of the disk. • Polycarbonate shape is modified. It is then placed under high pressure, while then a stamper places tiny indentations holding digital information. These indentations are read when the CD is played in a CD player. • The plastic molds are then placed in the “metallizer”, which places a thin reflective metal layer (commonly aluminum) by the “sputtering” process. The playback laser reads this information off the reflective surface. Lacquer is then placed as a coding layer to protect the CD from external damage.

  5. Packaging • The CDs are then packaged in a plastic case. Sometimes they might be in cardboard boxes with plastic shrink-wrap covering.

  6. Transportation to the consumers • Plane, truck, or rail which requires fossil fuels for energy. This in the end contributes to climate change.

  7. Their uses • Used to hold information, music, play Playstation one games. The good stuff…

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