aluminum plate is also called aluminum sheet. It is a plate material made of aluminum, usually with a thickness of 0.2mm-500mm and a width of 100mm-2650mm.
Aluminum plate has the features of light weight, high strength and corrosion resistance and is widely used in food, aviation, aerospace, automobile, shipbuilding, construction, electronics, home appliances and other fields.
Classification of aluminum plates
According to different manufacturing processes and uses, aluminum plates can be divided into the following categories:
1. Ordinary aluminum plates: manufactured using conventional rolling processes, widely used in construction, electronics, home appliances and other fields.
2. Hot-rolled aluminum plates: manufactured using high-temperature rolling processes, with high strength and good corrosion resistance, mainly used in aviation, aerospace, automobiles, shipbuilding and other fields.
3. Cold-rolled aluminum plates: manufactured using low-temperature rolling processes, with smooth surfaces and high hardness, mainly used in electronics, home appliances and other fields.
4. Coated aluminum plates: A protective film or coating is applied on the surface of the aluminum plate to improve the corrosion resistance and surface decoration of the aluminum plate.
Aluminum plate production process
The production process of aluminum plates mainly includes raw material preparation, smelting, casting, rolling, annealing and other steps.
Among them, rolling is an important process link in aluminum plate production, which is mainly divided into hot rolling and cold rolling.
Main applications of aluminum plates
Aluminum plates are widely used in various fields, mainly including the following aspects:
1. Construction field: Aluminum plates are used as building exterior wall decoration materials. They are lightweight, high-strength, fire-resistant, and corrosion-resistant, which can effectively improve the safety and aesthetics of buildings.
2. Transportation field: Aluminum plates are used as materials for vehicles such as cars, trains, and airplanes. They are lightweight, high-strength, and corrosion-resistant, which can improve the safety and performance of vehicles.
3. Electronic field: Aluminum plates are used as shells, heat sinks, and other parts of electronic products. They have good thermal conductivity and light weight, which can improve the performance of electronic products.
4. Packaging field: Aluminum plates can be made into various packaging materials such as packaging boxes and cans, which have moisture-proof, anti-oxidation, and fresh-keeping functions.
Benefits of aluminium plate in food packaging
The application of aluminum sheet in food packaging mainly includes the following aspects:
Food cans and beverage cans: Aluminum sheet is widely used in the production of food cans and beverage cans due to its good corrosion resistance and oxidation resistance. These products need to ensure that they will not react with the internal substances during long-term storage and use, and can withstand the influence of high temperature, high pressure and other factors.
Aluminum foil lunch boxes: Aluminum foil lunch boxes have been widely used abroad, and in recent years, they have also begun to be promoted and used in the daily life of residents in my country. Aluminum foil lunch boxes have high barrier properties and can effectively block water, water vapor and light. They are suitable for high barrier packaging occasions such as airtight fragrance packaging and moisture-proof packaging. In addition, aluminum foil has good thermal conductivity, heat resistance and low temperature resistance, which is suitable for frozen packaging, and can maintain stable shape and size at high and low temperatures.
Aluminum-coated composite material: This material is composed of two or more layers of materials, one or more of which is coated with a thin layer of aluminum film. Aluminum-coated composite materials have excellent barrier, light-shielding, moisture-proof and heat-insulating properties, and can effectively prevent the intrusion of external light, oxygen and moisture, thereby maintaining the freshness and nutritional value of food. Many well-known brands of milk powder use aluminum-coated composite materials as packaging materials to ensure the quality and safety of food.
Aluminum foil packaging: Aluminum foil packaging is widely used in the food industry, mainly for the packaging of dairy products, cakes and beverages. Aluminum foil can effectively prevent the influence of sunlight and bacteria on food and extend the shelf life of food. For example, the shelf life of dry milk in sealed packages made of laminated foil can reach 2 years.
Advantages of aluminum plate in food packaging:
High barrier properties: Aluminum plate and aluminum foil have high barrier properties to water, water vapor and light, and are suitable for high barrier packaging occasions such as airtight fragrance-preserving packaging and moisture-proof packaging.
Heat and low temperature resistance: Aluminum foil has good thermal conductivity, heat resistance and low temperature resistance, is suitable for frozen packaging, and can maintain stable shape and size at high and low temperatures.
Environmental protection: Aluminum foil is easy to recycle and reuse efficiently, is recyclable and regenerable, and can reduce the amount of garbage generated.
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