Aluminium is used in a huge variety of products
Why aluminium can be used in a huge variety of products?We can see through the aluminum alloys production process to intuitively understand the characteristics of aluminum. Aluminium is a good electrical conductor and is often used in electrical transmission lines. It is cheaper than copper and weight for weight is almost twice as good a conductor. Rolling begins with huge sheet ingots weighing as much as 20 tons that have been preheated to make aluminum 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 heattreated and quickly cooled, or quenched, for added strength and then stretched to straighten and relieve in