Industry News

Quality requirements and appearance requirements

Update:31 Oct 2017
Summary:

Quality requirements First, the surface color of alumin […]

Quality requirements
First, the surface color of aluminum foil uniform, clean, flat plate, no significant roll, pitting, pinholes, corrosion traces;
Second, the aluminum foil surface without creases, spots, bright lines such as rolling defects;
Third, the aluminum foil surface without color;
Fourth, the surface without oil, no serious oil smell, no visible eye oil spots;
Fifth, the surface tension, up to pen test is not less than 32 dyne;

Appearance requirements:
First, aluminum foil wrapped tight elastic moderate, smooth and smooth edges, smooth edges;
Second, the aluminum foil wound layer should not exceed ± 1.0mm;
Third, the foil width of foil is greater than or equal to the foil width, the general diameter of the two ends of the die does not exceed the foil width of 5mm;
Fourth, the foil should be wound around the center of the die;
Fifth, the joint parts in the aluminum volume at both ends of a clear link mark.

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