Aluminum Foil For House Hold To Make Small Roll
If the metal and alloy materials are heated to a certain temperature in the solid state, maintained at this temperature for a certain period of time, and then cooled to room temperature at a certain cooling rate, the internal structure and mechanical properties of the metal and alloy materials can be changed. To meet the requirements of people’s use, we call this treatment method heat treatment. Any heat treatment process includes three stages of heating, heat preservation, and cooling. It is different from the pressure processing methods such as rolling, extrusion and forging. It does not change the product. In the case of shape and size, only heating and cooling operations can change and control the structure and properties of the material.
The aluminum foil is divided into 10 microns, which is thin and generally used for baking pads and packaging, 16 microns is generally used in household ovens, and 20 microns is extra thick, which can basically be used. Barbecue and aluminum foil sixtieth must be 20 microns thick aluminum foil
Aluminum foil is an opaque metal sheet with extremely high barrier properties and stable performance. In theory, formaldehyde cannot penetrate aluminum foil.
However, the production of aluminum foil is produced by continuous rolling. The impurities in the raw materials and the control of the production process will inevitably not form holes in the aluminum foil. Household foil manufacturers, you can check, there are standards for aluminum foil holes. The aluminum foil used has no pinholes, so it is not permeable to formaldehyde
At present, in the classification of household foils, it is rarely seen that the structure of bagged milk powder adopts aluminum foil. Aluminum foil is generally used as a sealing film for filling milk powder.
Compared with other packaging materials, aluminum foil has low moisture permeability, good moisture resistance, and at the same time has the advantages of safety, convenience and long shelf life. Although the thickness of the aluminum foil inevitably appears holes and the thickness of the aluminum foil decreases. It is thinner and increased, but its moisture-proof performance is still superior to non-porous plastic films and other packaging materials. This is because the polymer chains of plastics are separated from each other and should not prevent water vapor penetration. If the surface of the aluminum foil is coated with resin or with paper, Plastic film composite its moisture resistance
Aluminum Household Foil Alloy 8011 Temper HO We all know that the original tin foil is actually made of tin, but because the use of pure tin foil to wrap food will cause the food to have a little tin smell.
