How is aluminum foil made?

More and more people from all over the world buy our aluminum foil, although they may not know how aluminum foil is made. They trust us because we have good quality assurance and very suitable prices. Next, I will explain to you how aluminum foil is made.

The processing of aluminum foil is indispensable for the raw material aluminum ingot. We need to continuously thin large aluminum ingots. First, 100% pure aluminum ingots are put into a gas furnace to melt, and these aluminum ingots called blanks will go through this process to get rid of impurities such as zinc, titanium and silicon. It takes three to eight hours to process 27 tons of aluminum in the remelting furnace. The furnace temperature is 750 ° C. The melting point of aluminum is 660 ℃. When aluminum becomes aluminum water, it will be injected into a small mold to make samples. The sample solidifies within a few seconds and is used to detect the composition of the alloy after purification. The refractory trough drains the aluminum water from the return furnace to the slag outlet.

aluminium jumbo rolls

The processing of aluminum foil is indispensable for the raw material aluminum ingot. We need to continuously thin large aluminum ingots. First, 100% pure aluminum ingots are put into a gas furnace to melt, and these aluminum ingots called blanks will go through this process to get rid of impurities such as zinc, titanium and silicon. It takes three to eight hours to process 27 tons of aluminum in the remelting furnace. The furnace temperature is 750 ° C. The melting point of aluminum is 660 ℃. When aluminum becomes aluminum water, it will be injected into a small mold to make samples. The sample solidifies within a few seconds and is used to detect the composition of the alloy after purification. The refractory trough drains the aluminum water from the return furnace to the slag outlet.

Huge aluminum coils

The aluminum water flows into the movable trolley located above the slag outlet. Through this process, most impurities are filtered out in the dedicated tank. The mold is then water cooled to accelerate the solidification of the molten aluminum, and the aluminum ingot is taken out of the mold for processing. These aluminum ingots are huge in size, measuring 4.4 meters long, 1.4 meters wide, and 0.45 meters thick. Each aluminum ingot weighs 750 kilograms, so it must be transported to a dedicated platform using a crane. The surface scraper can reduce the thickness of the aluminum ingot by 3 mm, and the impurities can be removed. The surface becomes extremely smooth. The coolant residue used to cool the surface scraper blade should also be removed. Next, the multiple rolling process of aluminum ingots comes into play.

Many finished aluminum coils

The aluminum ingot is squeezed by a hot roller, and the roller temperature is between 455 and 540 ° C. The technician gradually adjusts the pressure on the aluminum ingot, and the technician continuously adjusts the pressure as the thickness decreases. Because of the high temperature, the aluminum ingot has the hidden danger of sticking rolls. To avoid this situation, 95% water and 5% oil coolant are used throughout the process. Aluminum ingots are processed from 45 cm thick, and gradually become thinner with the hot rolling step by step. Depending on the processing requirements, the aluminum ingots have to undergo 12 to 16 hot rolling treatments. At this time, the thickness of the aluminum ingot is 7 cm. However, it needs to be further reduced to 0.5 cm. After this process, the aluminum ingot is 0.5 cm long and more than 9 meters long. In the rolling stage, the aluminum plate is conveyed by the conveyor belt. The aluminum ingot is now 5 cm thick.

Aluminium Foil for Air Conditioner

The aluminum plate is thin enough to be rolled up. Before entering the guide roller machine, the aluminum plate will be rolled together, where its thickness will be further rolled thin. At this point, the aluminum plate is very thin and may be pulled off by the pressure of the guide roller, so the aluminum plate needs to pass through in two layers. The thinning process is only the last step, the aluminum sheet will be rolled to the thickness required by the customer. The coolant is used to prevent the aluminum foil from adhering to the guide roller. Because the edge of the aluminum foil will be damaged or wrinkled, a 1 cm band edge needs to be cut off with a knife head. Finally, the aluminum foil roll is cut to the required width.The aluminum ingot has been processed into long Up to 12.7 kilometers of aluminum foil.

Aluminium Foil for Air Conditioner
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