•Aluminum molds are manufactured through mechanical processing (such as CNC, milling machines, etc.), with high forming accuracy and smooth surface, which can reduce subsequent polishing processes. This is particularly important for packaging that requires high precision or strict appearance requirements, such as medical sterile boxes and electronic product casings, to ensure product size stability and no burrs.
2. Durability and long service life
•The aluminum mold material is hard, wear-resistant, and can be reused dozens or even hundreds of times without deformation, significantly reducing long-term production costs. In contrast, wooden or plastic molds are prone to damage and have a low turnover rate. For example, in the field of architectural formwork, the durability of aluminum formwork makes it the preferred choice for high-rise buildings.
3. Efficient heat dissipation and production efficiency
•Aluminum molds have excellent thermal conductivity, which can quickly and evenly transfer heat, shorten the heating and molding time of plastics, and improve production efficiency. This feature is particularly critical in the vacuum forming process, as it can reduce energy consumption and avoid material overheating and degradation.
4. Excellent barrier and protective performance
•Packaging materials made of aluminum molds (such as aluminum-plastic composite films) have excellent barrier properties, which can effectively prevent oxygen, moisture, and light from penetrating, extending the shelf life of products such as food and medicine. For example, aluminum-plastic blister packaging can isolate ultraviolet rays and prevent drug oxidation and deterioration.
5. Environmental protection and recyclability
•The aluminum mold itself can be 100% recycled and reused, and the energy consumption for recycling only accounts for about 5% of the production of primary aluminum, significantly reducing carbon emissions. Aluminum plastic packaging materials also support recycling and reduce landfill pollution. For example, the aluminum part of the aluminum-plastic composite cover can be recycled infinitely, while the plastic part can also be degraded or reprocessed.
6. Adapt to complex design and multifunctionality
•Aluminum molds support modular design, suitable for producing complex or irregularly shaped packaging (such as curved shells, customized containers), and are easy to integrate sealing, anti-counterfeiting, and other functions. For example, aluminum-plastic composite cans can meet the packaging needs of different industries, such as food and cosmetics, by adjusting the number of layers and structure.
