The two-piece tinplate box was introduced in the middle of the 20th century. All packaging cans consist of two pieces, namely a can body and a can lid, so it is called a two-piece can. The can body of the two-piece can is made of a thin metal plate, which is stretched and deformed by a punch through a stretch forming die, so that the can bottom and the can body are connected as a whole.
There are many types of tinplate boxes for two-piece cans: according to the height of the can body, it is divided into shallow cans and deep-drawn cans; according to canning materials, divided into aluminum cans and iron cans; according to production skills, divided into thinning and stretching cans and deep cans. Chong pull cupping and so on. Two-piece cans are related to three-piece cans. The classification and characteristics of tinplate boxes of two-piece cans are introduced:
①Good sealing performance. The can body is directly formed by punching and drawing technology, no leakage, and the leak detection process can be avoided. Youfeng Can
②Ensure product quality. The two-piece cans do not need to be welded and sealed to prevent lead contamination of the solder cans, and are resistant to high temperature sterilization, which can ensure product cleanliness.
③beautiful and generous. The can body has no seams and beautiful appearance, and the tinplate can body can be decorated and printed successively, which has a good effect.
④High production efficiency. Two-piece cans only have two parts, and the production technology of the can body is simple, which has great advantages in simplifying the technical process and improving the production capacity.
⑤Save original data. The body of the two-piece can is stretched and deformed when it is formed, and the wall thickness is thinner than that of the three-piece can; in addition, the body of the two-piece can is formed entirely, and the tinplate box has no longitudinal seam or seam with the bottom of the can. Also save data.
