1. Detail Description for Aluminum Sheet
Specification | Alloy | Temper | Thickness(mm) | Width(mm) | Length(mm) |
Aluminum Sheet |
1050 1060 1070 1100 1200 1235 2024 3003 3104 3105 3A21 5052 5754 5083 5A02 5A03 5A04 5A05 6061 6063 6082 7075 8011 |
O H12 H14 H16 H18 H24 H26 H32 H34 H111 H112 H116 H321 T3 T4 T5 T6 T651
|
0.2~350 | 200~2300 | 20000 |
2. Production Lines of Aluminum Sheet and Other Aluminum Products
Rolling begins with huge sheet ingots weighing as much as 20 tons that have been preheated to make them easier to shape. As the size of rolling mills has increased, so has the size of these ingots, but a typical ingot is about 1828mm wide, 6096mm long, and more than 610mm thick.
The ingot is first fed into a breakdown mill, where it is rolled back and forth, reversing between the rolls until the thickness has been reduced to just a few inches. At this point, some plate is removed and readied for shipment. The plate is heat-treated and quickly cooled, or quenched, for added strength and then stretched to straighten and relieve internal stress built up during rolling and heat-treating. Finally, the plate is trimmed and aged at the desired temperature to develop its final properties.
Plate that is slated to become sheet or foil is trimmed after leaving the breakdown mill and sent through a continuous mill to reduce thickness further. Sheet thicknesses are then coiled.
To continue its reducing process, the coiled sheet is heated in a furnace to soften it for cold rolling. Cold rolling is the last step for some sheet. But other types, known as heat-treatable, are subjected to further elevated-temperature processing to increase their strength.
3. Applications of Aluminum Sheet
Aluminum plate, machined to shape, forms the skins of jumbo jets and spacecraft fuel tanks. It is used for storage tanks and containers in many industries and, because many aluminum alloys actually gain strength at supercold temperatures, it is especially useful in holding cryogenic (very-low-temperature) materials.
Plate provides structural sections for rail cars and large ships, as well as armor protection for military vehicles and trucks that carry payroll.
Sheet, the most widely used form of aluminum, is found in all of the aluminum industry's major markets.
In packaging, sheet is used for cans and closures. In transportation, it provides panels for automobile bodies and for tractor trailer vehicles. Sheet is used in home appliances and cookware. In building and construction, it forms siding and gutters, downspouts and roofing, and awnings and carports.
License plates and light bulb bases, pleasure boats and printing plates, highway signs and high-flying planes are also frequently made from aluminum sheet.
Sheet can be color anodized to black, gold, red, blue, and hundreds of other colors. It can be etched to a "matte" finish or polished to a sparkling brightness, textured to resemble wood, or painted for lasting beauty.