What are the characteristics of aluminum packaging materials of Jinhua tinplate box manufacturers?

Now in the metal can manufacturing industry, aluminum is mostly used to produce aluminum two-piece cans (now cola cans), aluminum easy-to-pull lids, aluminum easy-to-tear lids and other products. The materials are aluminum plate and aluminum foil. Miscellaneous cans have been gradually used in wine cans, high-end gifts and food packaging.

1: characteristics of aluminum packaging materials

Aluminum is a silver-white light metal with abundant resources, and its output is second only to steel in the world. Its application in metal can industry is second only to hard iron. Aluminum is widely used to make metal cans. Because it has many unique advantages and characteristics.

2. Advantages of aluminum cans

(1) The density of aluminum is very small, 2.7g/cm, only 35% of that of steel. Therefore, not only the quality of containers is greatly reduced, but also the transportation of raw materials is more convenient.

(2) The surface energy of aluminum naturally generates a dense alumina film, and the existence of this transparent and colorless film can prevent oxidation.

(3) Aluminum is non-toxic, so the food in the aluminum container is safe and hygienic, and there will be no metallic odor caused by the escape of heavy metal ions. When tinned tinplate is used for canned food, the decomposition of sulfur-containing substances in protein will lead to sulfide blackening, so this will not happen if it is packed in aluminum cans.

(4) The tensile property of aluminum is better than that of tinplate, and it can be made into a shape equivalent to that of tinned metal cans. Its surface is silvery white, and the printing effect of round tea tin cans is equally good.

(5) Aluminum has excellent light, heat reflectivity and electrical conductivity, which can improve the freezing treatment effect of canned food heating sterilization box. The waste of circular tea cans can be recycled, which not only saves energy consumption, but also prevents public hazards caused by waste.

3. Disadvantages of aluminum cans

(1) aluminum does not attract magnetism in the stamping process, so it needs manual treatment, with low yield and great danger. Aluminum packaging materials are difficult to weld, and aluminum cans can only be made by stamping or bone fastening.

(2) The aluminum material is soft and its strength is lower than that of tinplate, so it is easy to deform due to collision during manufacturing and transportation, resulting in great losses.