3105 H14/H16 aluminium closure sheet for screw caps
Last Updated :Mar. 12, 2024
Aluminum closure sheets are an important part of the packaging industry, especially in the production of screw caps for various containers such as bottles and jars. Among the many types available, 3105 H14/H16 aluminum closure plates stand out for their exceptional performance and suitability for screw cap applications.
Compared with 8011 aluminum cover plate, 3105 H14 H16 aluminum cover plate has sufficient strength and therefore can withstand gas pressure. Widely used in the production of carbonated drinks and mineral water caps.
We can perform phosphate chromate treatment and DOS coating on 3105 aluminum spiral cover plates, and print different colors on the basis of our plain plates.
Haomei Aluminum controls material composition, rolling temperature and time, and annealing temperature to produce the best material to meet customers' performance needs, such as opening capacity and lug yield. With good flatness and squareness, we can prevent color aberration, unevenness or printing misalignment during the printing process.
Aluminum closure sheets are thin, flat sheets of aluminum alloy specifically designed for the production of closure systems, specifically screw caps for sealing containers. These closure systems are widely used in the packaging of beverages, pharmaceuticals, cosmetics and other consumer products to ensure product freshness, integrity and safety.
Among the various aluminum alloys used for closure panels, 3105 H14/H16 is a popular choice due to its optimal combination of mechanical properties, formability, corrosion resistance and surface properties.
3105 H14/H16 aluminum closure sheet chemical composition
3105 aluminum alloy is primarily composed of aluminum, with other elements added to enhance its properties. These elements typically include magnesium, manganese, and trace amounts of other metals. The exact ingredients may vary slightly depending on the specific requirements of the application.
| Alloy | 3105 | |
| Si | 0.6 | |
| Fe | 0.7 | |
| Cu | 0.3 | |
| Mn | 0.3-0.8 | |
| Mg | 0.2-0.8 | |
| Cr | 0.2 | |
| Ni | - | |
| Zn | 0.4 | |
| Ti | 0.1 | |
| Other | Each | 0.05 |
| Total | 0.15 | |
| Aluminium | Remainder | |
3105 H14/H16 aluminium closure sheet for screw caps advantages
Aluminum sealing sheets play a pivotal role in the packaging industry as they offer several key advantages:
1. Seal integrity
Aluminum bottle caps provide an effective seal to prevent leakage and contamination, thus maintaining the quality and freshness of packaged products.
2. Durability
The inherent strength and corrosion resistance of 3105 aluminum alloy ensures the longevity of closed systems, even under harsh storage and transportation conditions.
3. Sustainability
Aluminum closure panels are recyclable, contributing to the circular economy and reducing environmental impact. The recyclability of aluminum promotes resource conservation and waste reduction in the packaging industry.
3105 H14/H16 aluminum cover plates are an integral part of the packaging industry, especially for the production of screw caps used in a variety of consumer products. Their optimal combination of mechanical properties, formability, corrosion resistance and surface properties make them ideal for sealing containers and maintaining product integrity.
3105 H14/H16 aluminium closure sheet performance
- Strength: 3105 aluminum alloy has medium strength and is suitable for forming processes without sacrificing structural integrity.
- Formability: It has excellent formability and can be easily formed into various bottle cap designs.
- Corrosion resistance: The alloy has good corrosion resistance, especially in weakly acidic or alkaline environments, enhancing the durability of closed systems.
- Surface treatment: 3105 aluminum closed panels are available in a variety of surface treatments, including polished, brushed and coated, providing options for different aesthetic and functional requirements.
3105 H14/H16 aluminium closure sheet for screw caps surface type
- Ordinary milling
- DOS oil lubricated surface treatment
- Chrome surface treatment
- One side is gold/white/red/blue/black, etc., and the other side is protective paint
- Varnish/clearcoat on both sides
3105 H14/H16 aluminium closure sheet for screw caps manufacturing process
The production of 3105 H14/H16 aluminum closures involves multiple complex processes to ensure the material meets the stringent quality standards required for screw cap applications. These processes typically include:
1. Casting
The first step involves melting the raw aluminum alloy and casting it into an ingot or billet of specific dimensions. This process ensures uniformity of composition and structure.
2. Scroll
The cast billet is then hot or cold rolled to obtain the required thickness and mechanical properties. Closed plates are usually preferably cold rolled to improve surface finish and dimensional accuracy.
3. Annealing
After rolling, the aluminum sheets undergo annealing, a heat treatment process that eliminates internal stress and improves ductility. This step is critical to enhance formability and ensure uniform performance throughout the sheet.
4. Surface treatment
Surface treatments such as cleaning, chemical conversion coatings, and application of protective coatings can be used to improve corrosion resistance and enhance adhesion of decorative or functional coatings.
5. Slitting and cutting
The sheets are then cut to exact dimensions according to the customer's specifications. Tight tolerances are maintained during the process to ensure compatibility with cap manufacturing equipment.
3105 H14/H16 aluminium closure sheet for screw caps applications
3105 H14/H16 aluminum closure plates are widely used in various industries, mainly for the production of screw caps for packaging solutions. Some common applications include:
1.3105 H14/H16 aluminum closure sheet for screw caps for beverage industry
Aluminum screw caps are widely used in the beverage industry to seal bottles of water, carbonated drinks, juices and alcoholic beverages. The corrosion-resistant properties of 3105 alloy ensure the integrity of the seal, maintaining the freshness and quality of the contents.
2.3105 H14/H16 aluminum closure sheet for screw caps for pharmaceutical packaging
In the pharmaceutical sector, aluminum closure panels are used to seal containers containing medicines, syrups and other pharmaceutical products. Aluminum's inertness makes it suitable for maintaining the potency and safety of pharmaceutical formulations.
3.3105 H14/H16 aluminum closure sheet for screw caps for cosmetics
Aluminum bottle caps are also used for packaging cosmetics, perfumes and personal care products. The stylish appearance and customizable surface finish of 3105 aluminum closure panels help enhance the aesthetics of packaging, increasing brand awareness and consumer appeal.
4.3105 H14/H16 aluminum closure sheet for screw caps for food packaging
Condiments, sauces and specialty oils packaged in sealed containers with aluminum screw caps. Aluminum's barrier properties help protect contents from external contaminants and preserve product freshness.