8079 O Temper 0.0075mm Laminated Foil

I. Product Overview

8079 O Temper 0.0075mm Laminated Foil​ is an ultra-thin laminated aluminum foil designed for high-end precision applications. It combines the superior performance of 8079 aluminum alloy with the extreme flexibility achieved through O-temper annealing.

II. Core Substrate & Process Analysis

2.1 Core Substrate: Characteristics of 8079 Aluminum Alloy

• Alloy Composition:​ Belongs to the 8xxx series aluminum alloy. The core component is aluminum (balance), containing 0.7%-1.3% iron, ≤0.10% silicon, and trace amounts of copper, manganese, zinc, etc. Its core feature is a high-iron, low-silicon formulation [6].
• Core Characteristics:​ Non-toxic, odorless, food safety grade. Possesses excellent ductility, toughness, and barrier properties. Surface is clean and easy to laminate. Resistant to high and low temperatures (-60°C to 260°C), suitable for ultra-thin rolling and lamination processing [6].
• Comparison with Similar Alloys (e.g., 8011):​ Offers superior strength and toughness, outstanding deep-drawing performance, and stronger puncture resistance. Ideal for higher-demand precision lamination scenarios.

2.2 Key Temper: O Temper (Annealed State) Explanation

• Temper Definition:​ Fully annealed treatment to achieve the softest state of the material, with excellent plasticity, high elongation, and elimination of processing stress.
• Impact on Product:​ Ensures processability for the ultra-thin 0.0075mm specification, providing excellent folding and forming capabilities to fit complex shapes. Also enhances adhesive stability during lamination and prevents interlayer delamination.

2.3 Core Process: Lamination Process Details

• Lamination Principle:​ Compositing 8079 O-temper aluminum foil (0.0075mm) with functional materials like PET, PE, kraft paper, etc., via thermal bonding, adhesive, or solvent-free dry lamination processes.
• Key Process Requirements:​ Aluminum foil surface undergoes electrostatic degreasing treatment, with surface tension ≥38 dyn/cm; control composite temperature (120-200°C) and pressure (0.5-2MPa).
• Process Advantages:​ Combines the barrier properties of aluminum foil with the functionality of composite materials, creating a customized “aluminum foil + functional layer” barrier system.

2.4 Thickness Characteristic: Core Advantages of 0.0075mm (7.5μm)

• Thickness Positioning:​ Falls within the ultra-thin aluminum foil category (4.5-9μm), possessing “invisible interface” characteristics.
• Core Advantages:​ Lightweight, excellent flexibility, easy to cut and form, while maintaining superior barrier performance.

III. Core Performance Indicators

3.1 Basic Physical Properties

• Thickness:​ 0.0075mm ± tolerance (customizable), with high thickness uniformity.
• Appearance:​ Clean, flat surface, free from oil, pinholes, and scratches.
• Mechanical Properties:​ Tensile strength 90-110 MPa, elongation 13%-18%, Erichsen value 6.2-7.3 mm.

3.2 Core Functional Performance

• Barrier Performance:​ Oxygen transmission rate <0.01 g/m²/day, near-complete barrier.
• Lamination Performance:​ High interlayer bond strength, no delamination.
• Temperature Resistance:​ Remains stable in a range from -73°C to 371°C.
• Processing Performance:​ Easy to cut, punch, and heat seal; compatible with high-speed production lines.

3.3 Safety and Environmental Performance

• Safety Performance:​ Non-toxic, odorless, complies with hygiene standards for food and pharmaceutical packaging.
• Environmental Performance:​ Aluminum foil is recyclable, meeting green and low-carbon production requirements.

IV. Application Fields

4.1 High-End Packaging

• Food Packaging:​ Ultra-thin vacuum packaging, premium snack inner packaging, aroma-preserving packaging for powdered foods.
• Pharmaceutical Packaging:​ Cold-form blister packaging, capsules/tablet packaging.

4.2 Electronics & New Energy

• Lithium Battery Packaging:​ Inner substrate for flexible lithium battery pouches (aluminum-plastic film).
• Electronic Component Protection:​ Protective layer for small electronic components and PCBs.

4.3 Precision Industrial Fields

• Precision Instrument Packaging:​ Protective packaging for small precision instruments and sensors.
• Other Applications:​ High-end tape base material, ultra-thin insulation layer substrate, suitable for aerospace scenarios.

V. Product Specifications & Customized Services

5.1 Standard Specifications

(Specification Table Retained)

5.2 Customized Services

• Specification Customization:​ Fine-tuning of thickness tolerance, customization of width/length.
• Lamination Customization:​ Customize composite materials and functional layers.
• Surface Treatment Customization:​ Surface printing, coating treatments.

VI. Product Advantages & Market Competitiveness

6.1 Core Product Advantages

• Material Advantage:​ High-iron, low-silicon 8079 alloy offers superior toughness and puncture resistance.
• Temper Advantage:​ O-temper annealing solves the pain point of easy breakage in ultra-thin foil.
• Process Advantage:​ Precision lamination achieves the dual goals of “function + thinness.”
• Specification Advantage:​ The 0.0075mm specification fills a niche market gap for high-end ultra-thin foil.

6.2 Market Competitiveness

• Niche Dominance:​ Focuses on the ultra-thin, high-precision laminated foil market.
• Quality Advantage:​ Strict control over thickness uniformity ensures stable quality.
• Customization Advantage:​ Flexible parameter adjustment to suit diverse scenarios.

VII. About Henan Huawei Aluminum Co., Ltd.

7.1 Company Profile

Henan Huawei Aluminum Industry Co., Ltd. has been deeply engaged in the aluminum alloy deep processing field for many years, focusing on high-end aluminum foil and product manufacturing, with profound technical expertise and experience in ultra-thin and laminated foil.

7.2 Core Strength & Production Capacity

• Equipment Strength:​ Equipped with advanced domestic and international production lines for precise ultra-thin rolling and lamination.
• Technical Strength:​ Professional R&D team strictly adhering to industry standards.
• Quality Control:​ Full-process quality control system ensuring stable product quality.

7.3 Business Scope & Market Layout

• Core Products:​ Includes 8079, 8011, and other 8-series aluminum alloy foils, with 8079 O-temper ultra-thin laminated foil being a flagship product.
• Market Coverage:​ Based in China, serving globally, with a strong brand image.

7.4 Company’s Association with This Product

This product is one of Henan Huawei Aluminum’s core flagship products, leveraging the company’s deep technical expertise in 8079 alloy processing to ensure full compliance with performance standards.

VIII. Storage & Usage Precautions

8.1 Storage Requirements

• Environment:​ Store in a dry, ventilated, cool place, avoiding humidity and high temperatures.
• Method:​ Store rolls horizontally to avoid compression and impact.
• Shelf Life:​ 12 months under standard storage conditions.

8.2 Usage Precautions

• Processing:​ Control force to avoid over-stretching; control heat sealing temperature.
• Application Scenarios:​ Avoid strong acid/alkali environments; comply with hygiene standards.

IX. Frequently Asked Questions

• Q: Interlayer delamination occurs.
  • A:​ Optimize lamination parameters and enhance substrate surface treatment.
• Q: Pinholes or scratches appear on the foil surface.
  • A:​ Strengthen production protection and improve equipment precision.
• Q: Foil breaks easily during processing.
  • A:​ Verify O-temper annealing effectiveness and adjust processing force.
• Q: Barrier performance is substandard.
  • A:​ Check lamination structure integrity and optimize composite process.