How to manufacture alloy 5052 aluminum sheet from aluminum ingots？
The more detailed process of producing alloy 5052 aluminum sheet is as follows:
Aluminum ingot melting: Put high-purity aluminum ingots into the furnace for melting, and add a suitable amount of refining agents, such as alumina and sodium fluoride, to remove impurities in the aluminum ingots. The temperature for aluminum ingot melting is generally around 700℃ to 800℃, and the melted aluminum liquid has a high density, so it needs to be heated to above 800℃ in a holding furnace to maintain its fluidity.
Aluminum liquid casting: Pour the melted aluminum liquid into a casting machine for casting. Continuous casting is usually adopted, and the melted aluminum liquid is continuously cast into slab. The 5052 aluminum sheet is generally produced using the wide-strip casting process. Firstly, the melted aluminum liquid flows through the mold in the continuous casting machine, forming a thin strip of aluminum ingot, and then is processed into aluminum sheet through multiple rolling and stretching processes.
Rough rolling processing: The preliminary aluminum sheet is sent to a rough rolling machine for rough rolling processing. The high-pressure rollers squeeze and deform it, making it thicker and removing impurities such as the surface oxide layer and burrs. Rough rolling processing usually needs to be repeated several times to gradually reduce the thickness of the slab and improve the surface flatness.
Acid washing treatment: After rough rolling, the surface of the aluminum sheet may have some residual oxide layer and impurities, which need to be acid washed to improve the surface quality and smoothness of the aluminum sheet. The main purpose of acid washing is to remove the oxide layer and impurities on the surface of the aluminum sheet by chemical reaction, and form a dense oxide protective layer.
Intermediate rolling processing: The acid-washed aluminum slab is sent to an intermediate rolling machine for intermediate rolling processing to further press and deform it, forming a more uniform sheet. The intermediate rolling process generally uses a multi-roll rolling machine, and during the rolling process, parameters such as rolling force and rolling speed need to be controlled to ensure the size accuracy and mechanical properties of the aluminum sheet.
Intermediate rolling: The ingot is heated to a certain temperature and then sent to the intermediate rolling mill for intermediate rolling. Using the multi-roll design of the intermediate rolling mill, the aluminum plate billet is continuously deformed and thickened to improve its tensile and mechanical properties. In intermediate rolling, the thickness and hardness of the aluminum plate can also be controlled by adjusting the heating temperature and rolling force. After intermediate rolling, the thickness of the aluminum plate has significantly decreased and the surface has a certain degree of flatness and smoothness.
Precision Rolling: The aluminum ingot that has been heated to a certain temperature is sent to the precision rolling machine for further rolling, which continuously deforms and thickens the aluminum plate while improving its tensile and mechanical properties. By controlling the heating temperature and rolling force, the thickness and hardness of the aluminum plate can also be controlled during precision rolling. After precision rolling, the thickness of the aluminum plate has significantly decreased, and the surface has a certain degree of flatness and smoothness.
Deep Drawing: The aluminum plate that has been through precision rolling is sent to a deep drawing machine for further shaping and improved surface quality and flatness. Deep drawing uses CNC machine tools to process the aluminum plate according to the required drawing specifications, allowing for the creation of various shapes of parts.
Cutting: The finished aluminum plate is processed through a cutting machine to create standard-sized 5052 aluminum plates for future use.
Inspection and Packaging: The produced 5052 aluminum plates need to undergo quality inspection to check for mechanical and chemical properties such as size accuracy, surface flatness, hardness, and corrosion resistance. They are then packaged and labeled for storage, transportation, and use.
These are the detailed steps for producing 5052 aluminum plates from aluminum ingots. Each step of the production process needs to be strictly controlled to ensure that the produced aluminum plates meet the relevant technical requirements and quality standards.
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