Therefore, in order to guarantee aluminum foil paper cards and membership cards and bearing in mind the production quality materials and master lixivial.
The formation mechanism of orange valvule-like pinhole in rolled aluminium foil was investigated by using optical microscopy,scanning electron microscopy,and energy dispersion X-ray spectrum.
Finally, a mechanism of AC etching for aluminum foil in HCl and a theoretical rule for choosing electroetching conditions were suggested on the results.
When container with an inner aluminum-foil cover passes inductorium, heat will be immediately generated and makes the aluminum-foil layer stick tightly to the bottle mouth to avoid air leakage.