What is the manufacturing process and use of a three-piece tin can?

Tin cans are generally metal packaging cans made of tinplate and thin aluminum plate, which are mainly used to package various canned foods, beverages or other food packaging. Tin cans are classified according to the manufacturing methods of three-piece cans and two-piece can. Here's how to make the next three-piece can. Three-piece tin cans have a history of nearly 200 years. It is made of three metal tinplates, namely, the tank body, the tank bottom and the tank cover, hence the name "three-piece tin can". The bottom and cover of an ordinary three-piece can are called the cover because of the same shape, size and manufacturing method. Tin welding and fusion welding have become the sealing forms of longitudinal seams of tanks. The former was used earlier, but it has been eliminated because of lead in tin welding. The latter fusion welding can avoid lead pollution, with low energy consumption and less material consumption, but the disadvantage is that the production equipment is more complicated. Three-piece cans have the characteristics of good rigidity, being able to produce cans of various shapes, high material utilization rate, easy size change, mature production technology and many kinds of packaged products. Take Red Bull as an example. We won't talk about the printing and coating in the early stage. On the can-making line, its bottom and cover are made first, and then there is a line where the can body is actively wound, then welded and finally sealed. Finally, together with the empty cans (excluding the bottom) and the bottom, they will be transported to the filling plant, and the bottom will be sealed by the filling plant in the future. Of course, this is a simple procedure. There are many parts in the manufacturing process of cover and bottom, including blanking, stamping of cover, necking, glue injection and so on.

Compared with three-piece cans, Dongguan tinplate cans, tea cans, Dongguan metal box manufacturers, metal cans for sale, Dongguan food cans for production, Dongguan mooncake boxes for wholesale and candy cans have incomparable advantages, such as good sealing, high hygienic quality of the food contained in the cans, direct stretching and molding of the cans without leakage, which can ensure the product quality, complete inner wall of the cans without seams, and high sealing between the cans and the cans cover, thus ensuring the inner packaging. It is more conducive to enhancing printing effect, beautiful appearance and saving raw materials. The tank body is integrally formed without bottom seam, and the production efficiency is also high. There are only two parts in two-piece can, which is of great benefit to simplify the technological process and improve the production capacity. However, two-piece can also has some shortcomings, such as single tank type, which is difficult to meet the requirements of multiple varieties and diversification. There are too many tin cans involved in life, and two-piece can alone cannot satisfy people's step-by-step life. However, Feng Run packaging will adapt to the needs of the times, develop more, and integrate into customers' lives, becoming an indispensable part of life.