In the early 18th century, in order to better preserve food, the British first invented the first Metal cans.
In fact, it was more than 100 years after the birth of the first metal can that the easy pull was really realized. In 1959, companies in the United States invented the cans. They processed the material of the can lid itself into a rivet, put on the pull ring, riveted it, and matched with the corresponding notch to become a complete easy-open lid. From then on the mass production and application of cans. According to the different raw materials of the cans, the cans are mainly divided into two categories, including tinplate processing and aluminum processing. According to the structure of metal cans, it can be divided into two-piece cans and three-piece cans. The three-piece can is composed of three parts: the can body, the can bottom and the can lid. The can body has a seam, and the can body is rolled with the can lid and the can bottom; The body is composed of two parts, the body and the lid are rolled and sealed. Aluminum cans are two-piece cans, and tinplate cans are mainly three-piece cans. The production process of the two is different. The main difference between the two is the manufacturing process of the can body. The two-piece can itself has no welds and is a complete whole, which is not afraid of leakage, which is conducive to the quality of the beverage.
The manufacturing process of the pop-top can is actually very simple. It is to punch the steel plate into a specific shape. The difficulty of manufacturing is that it is formed in one piece. To make it so thin, the requirements for materials and purity are very high.
At present, the aluminum two-piece cans that are mostly used in the beverage industry have higher precision requirements for the filling equipment of aluminum cans due to the characteristics of the aluminum cans themselves. Comark designed the automatic can filling and sealing machine of GT model based on the improvement of foreign advanced equipment and the actual needs of the domestic market. If you have any need, please do not hesitate to contact us.