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Aluminium Bottle Can Improve Material Strength
Aug 09, 2017

Aluminum is a resource-rich white light metal, the world's aluminum production after steel. Its application in the packaging industry is the first in non-ferrous metals. Aluminum as a packaging material,Aluminium Bottle Can the general use of aluminum, aluminum and aluminum foil and aluminum film. Aluminum is usually used as a canning material or system cover material; aluminum block used to make extrusion and thinning deep drawing of the tank; aluminum foil is generally used for moisture-proof packaging or production of composite materials and flexible packaging.

Packaging plate are rust-proof aluminum alloy, manganese and magnesium mainly from the material strength, improve the processing performance and other effects; copper can also improve the strength of the material, but also reduce the corrosion performance and processing performance; adding zinc,Aluminium Bottle Can Copper and magnesium with the same day, the heat treatment effect is improved, but the corrosion resistance and processing will be reduced; silicon is mainly to reduce the melting point of aluminum, improve strength and melt flow, reduce the coefficient of thermal expansion. Aluminum foil is made of a thickness of 0.4-4). 7mm (more with 0.5mm) of the industrial pure aluminum plate after repeated cold rolling made of flexible metal sheet.

one. Features of aluminum material

Compared to other packaging materials, aluminum materials have the following advantages:

(1) The density of aluminum is very small, 2.7 g / cm, only 35% of steel. This makes the container easy to achieve lightweight. The surface energy of aluminum naturally produces a dense layer of aluminum oxide film, this layer of colorless film can prevent further oxidation.

(2) aluminum non-toxic and tasteless, in line with the food hygiene standards.

(3) aluminum surface gloss high, easy to color, printing effect is good.

(4) made of aluminum easy to open the lid open performance is better than tin plate easy to open cover.

(5) aluminum for light, heat,Aluminium Bottle Can reflective properties and excellent conductivity, can improve the food canned heat sterilization and low temperature treatment effect.

(6) The mechanical properties of aluminum can be kept at low temperature, especially for frozen food packaging.

(7) made of aluminum foil composite film completely airtight and opaque, which can effectively protect the built-in food. Aluminum foil can also improve the strength of aluminum-plastic composite film.

(8) recyclable waste can not only save energy and prevent the pollution caused by waste, to meet the requirements of environmental protection.

But there are some shortcomings of aluminum materials, mainly:

(1) the production of aluminum relative to the tinplate and TFS is much more energy consumption, so the price of your side.

(2) aluminum is a non-magnetic material, so the original use of magnetic materials to absorb raw materials must be modified.

(3) poor corrosion resistance of aluminum materials, should not be used to contain acidic, alkaline and salt content of food.

(4) aluminum texture is soft, compared with the tinplate strength is low, in the manufacture and transportation due to collision and deformation, surface scratches and so on.

(5) aluminum welding difficult, it can only be stamping or bonding method of manufacturing.

At present, some of the shortcomings of aluminum can be made by combining with other materials. For example, aluminum foil and paper or plastic composite,Aluminium Bottle Can can increase its stiffness and tensile strength; in order to overcome the shortcomings of thin-walled aluminum cans shortcomings, can be filled in a small container before filling a small amount of liquid nitrogen, liquid nitrogen vaporization can increase the internal pressure Container stiffness and compressive properties; aluminum foils coated with nitrocellulose and modified polyolefins not only improve the chemical properties of aluminum foil, maintain a good print appearance, but also provide heat to the fit.