Exploring the Production Process of Aluminum Plate: A Gorgeous Transformation from Ore to Finished Product“
In today's society, aluminum sheet, as a high-quality metal material, is widely used in various fields such as construction, aviation, and automotive manufacturing. So, what is the production process for aluminum plates? Today, let's explore the birth process of aluminum plates and understand the story behind this magnificent transformation.
1、 Ore mining
The production of aluminum plates began with the mining of ores. Bauxite is an ore containing a large amount of aluminum oxide, which is the foundation of aluminum plate production. After mining, the bauxite undergoes processes such as crushing and grinding, and undergoes chemical treatment to extract alumina from it.
2、 Aluminum oxide extraction
The extracted alumina is further processed and refined to obtain pure alumina. This is one of the key steps in aluminum plate production.
Mix pure alumina with an appropriate amount of cryolite (a fluoride) and melt at high temperature to form aluminum liquid. During this process, strict control of temperature and chemical composition is required to ensure the purity and quality of the aluminum liquid.
Pour the aluminum liquid into the mold and cool it to form an aluminum ingot. According to different specifications and uses, aluminum ingots can be cast using different methods, such as gravity casting, pressure casting, etc.
5、 Hot rolling
After heating the aluminum ingot to a certain temperature, it is sent to the hot rolling mill for rolling. During the hot rolling process, temperature, speed, and reduction need to be controlled to ensure the thickness and mechanical properties of the aluminum plate.
6、 Cold rolling
After being cooled and straightened, the hot-rolled aluminum plate is sent to the cold rolling mill for further rolling. During the cold rolling process, aluminum sheets need to be repeatedly folded and stretched multiple times to obtain the required thickness and shape.
The cold rolled aluminum sheet undergoes annealing treatment to eliminate internal stress and improve plasticity and toughness. During the annealing process, it is necessary to control the heating rate, temperature, and cooling rate to ensure the performance of the aluminum plate.
After annealing, the aluminum plate undergoes processes such as shearing, straightening, and surface treatment before undergoing finishing. During the finishing process, it is necessary to strictly inspect the size, shape, surface quality, etc. of the aluminum plate to ensure compliance with quality requirements.
9、 Finished product inspection and packaging
The aluminum plates that have undergone quality inspection are packaged into bundles or loaded into containers, ready to be delivered to the customer. During the finished product inspection process, comprehensive testing of the chemical composition, mechanical properties, etc. of the aluminum plate is required to ensure compliance with relevant standards and customer requirements.