What is the structure of a tin can?

Canned products are a common form of metal packaging in the current market, but due to its wide variety, many friends do not know much about its structure. Here, I will introduce the structure of the can in detail.

According to the current classification and structural processing methods, cans are generally divided into two-piece cans, three-piece cans and aerosol cans. Two-piece cans and three-piece cans can be made into various shapes through stamping processes, such as round cans, square iron cans, and even other special-shaped cans.

The two-piece can consists of a lid and a can body, and the bottom of the metal can is part of the can body. When processing the can and the can end, a hollow integral stamping and stretching process is used, which is also called a stretching process.

The three-piece can consists of a can body, a lid and a bottom. At present, three-piece cans are very common in the market. Common beverage cans in our daily life, such as Wanglaoji, and mooncake iron boxes, are all three-piece can structures.

The designs of two-piece cans and three-piece cans have their own advantages. Due to their simple structure, two-piece cans usually have better sealing and lower production costs. The three-piece can, due to its structural flexibility, can adapt to more diverse packaging needs, especially when packaging of different shapes and sizes is required.

Aerosol cans are a special kind of canned product, mainly used to package spray products, such as hair spray, insecticide, etc. The design of aerosol cans needs to consider pressure bearing capacity and safety, so its structure and material selection are different from ordinary canned products.

When choosing canned products, in addition to considering its structural characteristics, it is also necessary to consider its material properties, production process, cost-effectiveness and other factors. Different types of canned products are suitable for different application scenarios, so when choosing, they should be reasonably selected according to specific needs.

In short, as an important form of metal packaging, canned products have a variety of structural design and production processes that enable them to meet a wide range of market needs. Understanding the structural characteristics of different types of canned products will help us better select and use these products.