How aluminum foil is made

- Apr 02, 2019-

How aluminum foil is made

HTMM GROUP CO.,LTD .Aluminum foil is produced by rolling aluminum slabs cast from molten aluminum in a rolling mill to the desired thickness. To maintain a constant thickness, a technician monitors the rolling mill sensors to ensure the pressure on the slab is correct. Sensors are able to tell the technician if the pressure is too great or not enough and then the technician can adjust the rollers to apply more or less pressure. It is then coiled and sent to the cold rolling mill.  To avoid breakage because of the thinness, the foil is doubled in the cold rolling mill and the rolled to the desired thickness. Aluminum foil provides a complete barrier to light, oxygen, moisture and bacteria. For this reason, foil is used extensively in food and pharmaceutical packaging. It is also used to make aseptic packaging that enables storage of perishable goods without refrigeration.

Specifically, aluminum provides an absolute barrier to protect foods, whether on the shelf, in the cooler or in the freezer. It can go from freezer to oven to broiler to microwave oven and result in quality food products whether at home or in central food processing operations. It is lightweight, so that it is easy and economical to transport. It is formable so that it is available in a wide variety of shapes and sizes. It can be printed, coated or embossed. And, it is recyclable which results in a 95% energy savings over that required to produce primary metal.


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