8079 Aluminium Double Zero Foil
In the ever-evolving landscape of materials engineering, 8079 Aluminium Double Zero Foil emerges as a benchmark for innovation, combining exceptional thinness with outstanding mechanical and chemical properties. This foil type has revolutionized sectors ranging from packaging to electronics, largely due to its superior composition, temper, and production quality that help it achieve double zero (00) tempering—a designation reflecting extremely soft and ductile aluminium foil. For those seeking to understand the capabilities of 8079 aluminium double zero foil, recognizing its unique parameters, manufacturing standards, and typical uses reveals its vital role in modern applications.
8079 Aluminium Double Zero Foil: Unique Composition and Properties
The aluminium used in 8079 foil belongs to the 8000 series alloys, primarily composed of high-purity aluminium mixed with trace amounts of iron and silicon. The "8079" is ANSI vetted and it features enhanced final thickness uniformity and surface finish, essential for its ultra-thin form factor.
8079 Aluminum Double Zero foil is a real workhorse around here. We mostly see it used in demanding applications requiring high strength and excellent formability. Unlike some of the softer alloys, 8079's temper gives it a nice balance – tough enough to withstand the forming process for things like deep-drawn containers or complex heat exchangers, but still malleable enough to avoid excessive cracking or tearing. It's a premium product, and we take extra care during production, especially with the gauge control, as even slight variations can impact the final product's integrity. I've personally seen the difference a tiny deviation in thickness can make on the final strength testing; it's a constant reminder of the precision required in our processes.
Beyond the technical specifications, I find it fascinating how such a seemingly simple material, a thin sheet of aluminum, can have such a broad range of applications. From the aerospace industry to food packaging (though not directly as a food-contact layer in our factory), the versatility of 8079 Double Zero foil is . I've even heard stories from our sales team about it being used in specialized electronic components. It's a humbling experience to be involved in producing a material that plays such a crucial, albeit often unseen, role in so many different areas. The consistency we maintain with 8079, meeting those tight tolerances, gives me a sense of pride in our work.
| Chemical Composition (%) | 8079 Aluminium Alloy |
|---|---|
| Aluminium (Al) | Balance (≥ 99%) |
| Iron (Fe) | 0.20 – 0.70 |
| Silicon (Si) | 0.15 – 0.60 |
| Copper (Cu) | ≤ 0.05 |
| Manganese (Mn) | ≤ 0.10 |
| Magnesium (Mg) | ≤ 0.10 |
| Zinc (Zn) | ≤ 0.10 |
| Others | ≤ 0.05 |
The alloy's high aluminium content favors outstanding corrosion resistance while maintaining compatibility standards important to food and pharmaceutical packaging. The double zero temper, classified as “O,” denotes that the foil is fully annealed (softened). This high ductility state is crucial for fabrication processes that require forming the foil without cracks or micro-fractures, especially in thicknesses ranging from 6 microns down to a staggering 2 microns and below.
Technical Parameter Focus: Thickness, Tempering & Standards
- Thickness: 8079 aluminium double zero foil typically thicknesses vary from 2 µm to 15 µm.
- Temper: Double zero temper ("00") meaning soft, fully annealed foil optimized for deep drawing and elaborate convection processes.
- Width & Length: Cut sizes tailored per customer with precise thickness tolerance one of the few production challenges mastered by premium manufacturers.
This foil's production adheres to the international ASTM standard specifications for aluminium 8079 foil, such as ASTM B479 which mandates mechanical properties, surface smoothness, and expansion allowances. Also, producers often integrate quality controls respecting the ISO 9001 quality system—ensuring each batch's optimum purity and flexibility.
Functions & Applications: Beyond Ordinary Foil
The extraordinary softness and super-thin attribution of 8079 Aluminium Double Zero Foil empower several high-performance utilities:
Pharmaceutical Packaging: The foil serves as a reliable barrier to moisture, oxygen, and contaminants in blister packs, where precise pliability without cracking is critical.
Flexible Electronics: Thin foil applications in shielding conductive layers or flexible circuits demand extreme foil consistency in thickness to avoid performance variance.
Food Packaging: Offering efficient contamination protection, the foil constitutes a primary fabric component of heat-sealable and microwavable trays, enhancing food safety and freshness.
Thermal Insulation: Reflective treatments capitalize on the hydrogen-free foil surface, adjusting radiant heat flux by typically doubling the reflector's capability.
Traffic-correcting Coatings and Gulfs in Packaging machinery, where ultra-thin carrier layers must integrate into tight system nichés.
Importance of Tempering and Production Conditions
Double zero temper is achieved by highly controlled annealing methods at specific temperatures (~350-400°C) that uniformly soften the foil without hindering the rolled product's elongation properties. Over-tempering would destroy maximum tensile strain, reversing foil toothed-handling capabilities essential in layered lamination.
Its annealing couples effectively limp ductility required in ultra-thin territory with preservation of strong surface quality advancements that permit ink adhesion or metallization but offer any reflecting pitch bed crispness, crucial in flexible laminate designs.
8079 Aluminium Double Zero Foil amalgamates mechanical excellence with chemically inert properties and precise thickness adherence. Leveraging tight process controls paired with versatile aluminium alloys without harmful alloying contaminants (like copper or lead), this foil balances high softness with manageable durability.
Its functions go beyond mere wrapping material; it forms the keystone material in biomedical packaging, advanced electronics shielding, and ultra-efficient food conservation applications. Guided by accredited temper measurements and rigorously certified standards like ASTM B479 and ISO 9001, the allure of foil in "double zero" form fits emerging packaging innovations calling for hybrid functional materials offering flexibility, barrier protection, and process compatibility.
Embracing 8079 Aluminium Double Zero Foil elevates performance ideology across various engineering disciplines, making it an indispensable partner in bringing future-facing concepts to contemporary utility.
For serious industry users of ultrathin aluminium, considering 8079 double zero temper foil palette-driven innovation enables further evolution in packaging design, electronics protection, and delicate heat shield building.
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