Foreign metal packaging technology innovation

1. Coated Steel Plates From the current development trend, coated steel plates have been used for Packaging materials and have shown a rapid development trend. A coated steel sheet, ie, an organic coated steel sheet, refers to a coated metal material obtained by coating an organic coating on a surface of a steel sheet. Such coated steel plates do not need to be coated after the packaging industry produces various types of packaging products. Therefore, coated steel plates are often classified as precoated steel plates. According to estimates of relevant experts, coated steel sheets will be widely used in the Metal Packaging industry to replace the current backward production process of metal packaging products in the production process.
Coated steel plates are generally produced centrally by metallurgical companies, eliminating the need for coating processes in product manufacturing and greatly reducing packaging manufacturing costs. It has been estimated that the cost of packaging products made from thin steel plates can be reduced by 5 to 10%, saving energy by about 1/6 to 1/5, and particularly saving the pretreatment of packaging products and the large investment in coating equipment. The coated steel sheet combines the advantages of both organic polymer and steel sheet, both good colorability, formability, and corrosion resistance of organic polymers, as well as the high strength and ease of processing of the steel sheet, enabling easy blanking. , bending, deep drawing, welding and other processing.
Currently, there are approximately 474 coated steel plate production lines in nearly 200 companies in 40 countries and regions around the world. There are about 200 production lines in the United States, more than 50 in Japan, 120 in European countries, and 74 production lines in Asia. At present, the annual production capacity of coated steel plates in the world is 14 million tons, including 450 tons in the United States, 4 million tons in Europe, 2.7 million tons in Japan, and 1.2 million tons in other Asian countries. The combined annual production capacity of the United States, Japan, and Europe accounts for approximately 84% of the total private-owned production capacity. According to incomplete statistics, as of May 2006, 24 coated steel plate production lines have been built in China, with an annual production capacity of 1.616 million tons. In addition, there are more than a dozen production lines under construction and in preparation.
2. Automatic cooling and heating of beverage cans The self-cooling cans developed by CCNV are very convenient to use. Just press the plastic button on the bottom of the beverage can, and the temperature of beverage can be within 3 - 5 mi n Decrease 15-20 °C. The self-cooling tank mainly uses a patented HEU technology to achieve the automatic cooling function of beverage cans. The HEU includes many components such as beverage cans, built-in HEU containers, activated carbon, and CO2 gas. The working principle of the HEU is very complicated. The HEU must maintain a certain degree of stability of the activated carbon adsorbing CO2, and the CO2 can be effectively released and reach the endothermic function when the internal pressure of the HEU decreases.
A self-heating sake tank appeared in Japan. At the bottom 1/5 of the tank there is a sandwich containing lime and a small amount of water in a sealed plastic film. Before drinking, just use an “appropriate” plastic stick to insert it from the lower hole and the water will immediately mix with the quicklime to generate a lot of heat. Just 3mi n, you can put a can Sake is heated to 58°C.
Nestlé UK has recently introduced a 330ml new concept “Automatically heated milk coffee cans”. Its principle is to place water and quicklime separately in the interlayer of the tank and generate heat through chemical reaction. As a result, the volume of the canister is reduced to accommodate 210ml of liquid beverage. For the convenience of consumers, the top of the jar is designed with a round pull ring. The heating process is controlled by the bottom button. About 3mi n, beverages can reach 60 °C. To avoid consumers being scalded by hot beverages, the outer layer of the can has a corrugated insulation and a specially designed shrink sleeve.