Aluminum Essay Research Paper Dear Xavier — страница 2
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worked after casting, including forging, rolling, drawing, and extruding. This usually makes the aluminum stronger, harder, and less ductile. Both of these processes of treating aluminum are helpful in creating a material that can be used for a variety of uses. Aluminum has a variety of uses because of its properties. Perhaps the best known is that it is very light weight. It is only about one-third less dense than iron, copper, and zinc. Aluminum also has the highest strength to weight ratio of any of the commercial metals. Also, aluminum and its alloys are highly resistant to corrosion and are extremely conducive to electricity. It is because of these properties that industry has made many advances in technology. Aluminum is increasingly used to conserve energy both in home heating and cooling. Aluminum storm doors, insulation, and aluminum siding are excellent insulators. Also because vehicle weight is a determinant in gas mileage, aluminum is being substituted for heavier materials. The container packaging industry is by far the biggest user of aluminum, using about thirty percent of the United states production of aluminum, and most of this is in the production of aluminum cans. Since aluminum is a potentially non-renewable resource, we need to do a better job at the recycling of this material. Not enough people know that it is cheaper for the aluminum companies to recycle than it is to process the Bauxite. Recycling costs only about five percent of the energy originally used to make aluminum because we eliminate the mining, shipping, refining, and reduction process. Aluminum companies say it takes about half the time and costs about one-tenth the money then to produce aluminum from the ore. Recycling also saves energy and other fossil fuels used to produce aluminum. Also, large aluminum recycling companies, such as the Reynolds Aluminum Recycling Company of America, has paid out as much as one billion dollars to consumers since the late sixties. If you would like to start your recycling campaign in your city, you should consider these facts: Identify the aluminum recycling centers in your area and ask them if they offer any assistance to groups recycling as a fund raising project. If you cannot find any in your local directory, you can get in touch with the Department of Agriculture. They will have a list of centers. Then try to recruit the aid of your local businesses that sell aluminum cans. They can make your job easier by keeping the cans in separate containers until you can pick them up. Try to pass out other information about your project at local supermarkets and other high visibility areas to help promote the program. You could also use the local media. Newspapers, radio, and the television are excellent means of getting attention. Last, but certainly not least, is to recycle wisely. Wait until you have an abundance of material to bring to the recycling center so you do not waste time and gas and make recycling a little bit more enjoyable for everyone involved. Xavier, I hope I gave you a little more information then you already had. If you need any additional information, you could get in touch with the Reynolds Aluminum Recycling Company of America for tips to construct your program. Lorin Industries could also help since they are the worlds largest job shop anodizer of aluminum. As for myself, I could just call any of my references that I leave on the bottom of this letter if I need any additional information. Take care pal and I will see you very soon. PEACE! Eric 1. Altenpohl, D. G., Aluminum Viewed from Within, (1981). 2. Ammen, C. W., Casting Aluminum, (1985). 3. Bakker, M., Encyclopedia of Packaging Technology, (1986). 4. Burkin, R. R. Production of Aluminum and Alumina, (1987). 5. King, F., Aluminum and its Alloys, (1987). 6. Pampillo, C. And Biloni, H., Aluminum Transformation Technology and Applications, (1980). 7. Peck, M. J., ed., World Aluminum Industry in a Changing Era, (1988).