A beverage can Is a metal container designed to hold a fixed portion of liquid s

Question

A beverage can Is a metal container designed to hold a fixed portion of liquid such as a carbonated soft drinks. alcoholic beverages, fruit juices, teas, herbal teas, energy drinks, etc. Beverage cans are made of aluminium (75% of worldwide production) or tinplated steel (25% worldwide production). Worldwide production for all beverage cans is approximately 475 billion cans per year worldwide' - Wiki Within the context of processing structure, properties and applications paradigm discussed in dass. develop and present an analysis of how the materials for the beverage can were developed for specific end uses.

Explanation / Answer

A beverage can is a metal container designed to hold a fixed portion of liquid such as carbonated soft drinks, alcoholic beverages, fruit juices, teas, herbal teas, energy drinks, etc. Beverage cans are made of aluminum (75% of worldwide production)or tin-plated steel (25% worldwide production). Worldwide production for all beverage cans is approximately 470 billion cans per year worldwide,

Aluminum was first identified as an element in 1782. Although the metal is found abundantly in nature, an efficient extraction process remained elusive for many years. Aluminum remained exceedingly high-priced and therefore of little commercial use throughout the 19th century. Technological breakthroughs at the end of the 19th century finally allowed aluminum to be smelted cheaply, and the price of the metal fell drastically.

Aluminum was not used for beverage cans until after World War II. The Adolph Coors Company manufactured the first aluminum beer can in 1958. Its two-piece can could only hold 7 ounces (198 g), instead of the usual 12 (340 g), and there were problems with the production process.The next model was a steel can with an aluminum top. This hybrid can had several distinct advantages. The aluminum end altered the galvanic reaction between the beer and the steel, resulting in beer with twice the shelf life of that stored in all-steel cans. Perhaps the more significant advantage of the aluminum top was that the soft metal could be opened with a simple pull tab. Schlitz Brewing Company introduced its beer in an aluminum "pop top" can in 1963. By the end of that year, 40% of all U.S. beer cans had aluminum tops, and by 1968, that figure had doubled to 80%.While aluminum top cans were sweeping the market, several manufacturers were aiming for the more ambitious all-aluminum beverage can. The technology Coors had used to make its 7-ounce aluminum can relied on the "impact-extrusion" process where a punch driven into a circular slug formed the bottom and sides of the can in one piece. The Reynolds Metals company introduced an all-aluminum can made by a different process called "drawing and ironing" in 1963, and this technology became the standard for the industry. Coors and Hamms Brewery were among the first companies to adopt this new can, and PepsiCo and Coca-Cola began using all-aluminum cans in 1967. The modern aluminum beverage can is not only lighter than the old steel or steel-and-aluminum can, it also does not rust, it chills quickly, its glossy surface is easily imprintable and eye-catching, it prolongs shelf life, and it is easy to recycle.

The raw material of the aluminum beverage can is aluminum. Aluminum is derived from an ore called bauxite. The bauxite is refined and then smelted, and the resulting molten aluminum is cast into ingots The aluminum base, for beverage cans consists mostly of aluminum, but it contains small amounts of other metals as well. These are typically 1% magnesium, 1% manganese, 0.4% iron, 0.2% silicon, and 0.15% copper. A large portion of the aluminum used in the beverage can industry is derived from recycled material.

The Manufacturing Process includes:

Cutting the blank

Redrawing the cup

Trimming the ears

Cleaning and decorating

The lid

To ensure that the cans are made properly, they are automatically checked for cracks and pinholes. One in 50,000 cans is usually found to be defective.

Filling and seaming

Byproducts/Waste

Some aluminum is lost at several points in the manufacturing process—when the blanks are cut and the ears are trimmed—but this scrap can be reused. Cans which have been used and discarded by consumers can also be reused, and as mentioned above, recycled material makes up a significant percentage of the aluminum used for beverage cans. The savings from recycling are quite significant to the industry. The major expense of the beverage can is in the energy needed to produce the aluminum, but recycling can save up to 95% of the energy cost. Can producers also try to control waste by developing stronger can sheet so that less aluminum goes into each can, and by carefully controlling the manufacturing process to cut down on loss through earing. The lid of the typical can is smaller in diameter than the walls in order to conserve the amount of aluminum that goes into it, and as world-wide demand for beverage cans continues to grow, the trend is to make the lid even smaller.

Worldwide production of aluminum beverage cans is steadily increasing, growing by several billion cans a year. In the face of this rising demand, the future of the beverage can seems to lie in designs that save money and materials. The trend towards smaller lids is already apparent, as well as smaller neck diameters, but other changes may not be so obvious to the consumer. Manufacturers employ rigorous diagnostic techniques to study can sheet, for example, examining the crystalline structure of the metal with X-ray diffraction, hoping to discover better ways of casting the ingots or rolling the sheets. Changes in the composition of the aluminum alloy, or in the way the alloy is cooled after casting, or the thickness to which the can sheet is rolled may not result in cans that strike the consumer as innovative. Nevertheless, it is probably advances in these areas that will lead to more economical can manufacture in the future

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.