Hot-rolled aluminum alloy is widely used in bottle cap materials, mainly because this material can meet the multiple needs of bottle cap production and use. Hot-rolled aluminum alloy has excellent forming performance, appropriate strength, excellent corrosion resistance and lightweight characteristics through high-temperature rolling process, and at the same time conforms to the trend of environmental protection and sustainable development. It is an ideal bottle cap manufacturing material for beverage, medicine and other industries.

Commonly used hot-rolled aluminum alloy models for bottle caps:

3004 aluminum alloy

Features: high strength, good corrosion resistance, and good forming performance.

Uses: widely used in the field of can caps and bottle caps.

3105 aluminum alloy

Features: moderate strength, good corrosion resistance and welding performance.

Uses: used for bottle caps and aluminum-plastic composite panels.

5182 aluminum alloy

Features: high strength, excellent corrosion resistance and ductility.

Uses: suitable for pull ring caps and bottle cap products that need to withstand higher strength.

8011 aluminum alloy

Features: good forming performance and moisture-proof and corrosion-resistant properties.

Use: suitable for anti-theft caps, medicinal aluminum caps, etc.

Specifications:

Features of hot-rolled aluminum alloy for bottle cap production:

1. Excellent forming performance: hot-rolled aluminum alloy has good ductility and plasticity, suitable for stamping and stretching of bottle caps, reducing processing defects.

2. Appropriate mechanical properties: Aluminum alloy provides good strength and toughness, and can withstand the pressure during sealing and opening while remaining lightweight.

3. High surface quality: The hot rolling process makes the surface of aluminum alloy flat and smooth, which is convenient for coating, printing and decorative treatment, meeting the appearance and functional requirements.

4. Excellent corrosion resistance: The natural oxide film of aluminum alloy can resist liquid corrosion and ensure the safety of food and beverages.

5. Environmentally friendly and recyclable: Aluminum alloy is lightweight and 100% recyclable, reducing resource consumption and conforming to the trend of sustainable development.

6. Economical and efficient production: The hot rolling process is suitable for large-scale production, ensuring a stable supply of bottle cap materials and controllable costs.

Production process of aluminum alloy for bottle caps

1. Aluminum ingot casting: Alloy aluminum ingots are produced by smelting and casting.

2. Hot rolling process: The aluminum ingot is heated to a suitable temperature for rolling to obtain a preliminary sheet.

3. Cold rolling and finishing: The hot rolled sheet is cold rolled to achieve the target thickness and performance.

4. Subsequent processing: coating, printing or stamping.

Application scenarios of aluminum alloy bottle caps:

Beverage bottle caps: such as pull ring caps for carbonated beverages.

Wine bottle caps: such as screw caps for red wine and spirits.

Medical bottle caps: such as anti-theft caps for antibiotic bottles.