Aluminum alloy anti-theft caps have the advantages of being simple and easy to open, and are widely used in bottle caps for wine bottles, medicine bottles, cosmetic bottles and other products.

Aluminum closure caps are mostly processed on production lines with a high degree of automation, so the strength, elongation and dimensional deviation of the material are very strict, otherwise they will break or crease during processing. In order to ensure that the bottle cap is easy to print after forming, the bottle cap material plate surface is required to be flat, without rolling marks, scratches and stains. The commonly used alloys are 8011 aluminum closure sheets, the state is H14 or H16, the thickness range is 0.20-0.23mm, the width range is 449-1000mm, and the surface of the aluminum closure sheet can be anodized, sprayed, etc. to achieve gold and other appearance effects.

Painted aluminum sheet for anti-theft cap

Discuss on Production of 8011 Aluminum Alloy Sheet for Bottle Lid

Continuous casting and hot rolling are the two main ways to supply cold-rolled aluminum alloy anti-theft cover plates. Compared with hot rolling, continuous casting has the advantages of short process and low cost. Due to the characteristics of the casting process itself, there is still a certain gap between the organization and performance of cast-rolled bottle cap materials and hot-rolled bottle cap materials. However, according to the feedback from anti-theft cover manufacturers, hot-rolled billets are better than cast-rolled billets in terms of the use effect of anti-theft cover materials.

8011 aluminum cover plate performance

1. Lightweight, high strength

2. Corrosion resistance

3. Good toughness

4. Good processability, providing bright decorative effects

5. Anti-theft opening