Medicinal aluminum bottle caps are an indispensable sealing material in modern pharmaceutical packaging, which not only ensures the safety and quality of drugs, but also improves the convenience and reliability of use. With the development of the pharmaceutical industry, aluminum bottle caps continue to innovate in design, function and material performance, playing a key role in sealing, anti-counterfeiting and protection in the fields of injections, oral liquids and freeze-dried powders.

Among the pharmaceutical aluminum bottle caps, 3003 and 8011 are the most commonly used aluminum alloy types, which have good corrosion resistance and processing performance. For higher performance requirements, 5052 and 3105 alloys provide stronger mechanical properties and chemical stability. Choosing the right aluminum alloy material not only ensures the safety and stability of drugs, but also improves the overall functionality and production efficiency of packaging.

Introduction to commonly used aluminum alloy grades:

3003 alloy (aluminum-manganese alloy)

Composition: The main component is aluminum, with a manganese content of 1.0%-1.5%.

Features: corrosion resistance, especially resistance to moisture and acidic substances; medium strength, good ductility, suitable for stamping; can be anodized and customized in appearance. Widely used in ordinary pharmaceutical aluminum bottle caps and stamping parts.

8011 alloy (aluminum-iron-silicon alloy)

Composition: The main component is aluminum, iron and silicon are the main alloying elements.

Features: excellent barrier properties, preventing air, moisture and light penetration; high strength, good forming performance; corrosion resistance and thermal stability. Mainly used for high-sealing pharmaceutical aluminum bottle caps (such as injection bottle caps)

3105 alloy

Composition: The main component is aluminum, with manganese, magnesium and a small amount of silicon added.

Features: moderate strength, excellent ductility, suitable for deep stamping and mass production; good corrosion resistance and oxidation resistance. Applied to mid-to-high-end pharmaceutical aluminum bottle caps.

5052 alloy (aluminum-magnesium alloy)

Composition: The main component is aluminum, with a magnesium content of about 2.2%-2.8%.

Features: Excellent corrosion resistance, suitable for contact with moisture and medicines; high strength, suitable for high mechanical performance bottle cap design; good weldability. Suitable for high-demand drug packaging, such as antibiotic bottle caps.

Processing state of bottle cap aluminum alloy

The aluminum alloy material of pharmaceutical aluminum bottle caps usually adopts the following states during processing:

H14: semi-hard state, taking into account strength and ductility, suitable for ordinary pharmaceutical bottle caps.

H16: state with higher hardness, suitable for bottle caps with high strength requirements.

O state: fully annealed state, with the best ductility, suitable for stamping of complex shape bottle caps.

Aluminum alloy medical bottle cap material and specifications

Features of aluminum alloy medical bottle caps:

1. Light weight and corrosion resistance: aluminum alloy bottle caps are light, corrosion-resistant and suitable for drug packaging.

2. Good sealing: made by special process to prevent drug leakage and deterioration.

3. Easy to open: reasonable design, easy to open and close, convenient for patients to use.

4. Strong plasticity: suitable for stamping, cutting, embossing, spraying and other processing technologies.

5. Good ductility: easy to process into various shapes of bottle caps.

6. Low cost: low production cost, which helps to reduce the cost of drug packaging.

7. Environmental protection: aluminum can be recycled and meets green environmental protection requirements.

Production process:

The production of medicinal aluminum bottle caps usually adopts the stamping process, and the punch press drives the stamping die for stamping. The die used is a ring cutting die, and the raw material is an aluminum alloy plate, which generally requires double coating of the aluminum alloy plate. After stamping, trimming, cleaning, drying and other processes, the finished medicinal aluminum bottle cap can be obtained.

The main aluminum products for bottle caps produced by MC Aluminum include 1xxx, 3xxx, 5xxx, and 8xxx series aluminum alloy substrates, with complete specifications, huge production capacity, sophisticated processing technology, and stable product performance. The company exports to many countries and regions overseas and is highly trusted.