Aluminum Foil
Your Professional Aluminum Foil Supplier
Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.
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Extra Thick Aluminum Foil8079 aluminum foil is an aluminum foil with high strength, good elongation and pressure expansion. The 8079 aluminum foil produced by the company has multiple advantages such as food grade,...read more
Why Choose Us
Quality Assurance
Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.
Extensive Experience
Weshare, since 2005, excels in transformer accessories and electrical engineering.
Export markets
With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.
Product Application
Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.
Advantages of Aluminum Foil
Excellent Barrier Protection
Aluminium foil blocks light, air and moisture, which keeps products fresh and prevents spoilage.
Heat Resistant
It can withstand high temperatures, making it suitable for cooking and baking.
Recyclable
Aluminium is 100% recyclable, which helps reduce waste if recycled properly.
Lightweight
It’s lighter than glass, which lowers transportation costs and energy use.
Types of Aluminum Foil
Standard Aluminum Foil
This is the most commonly used type of aluminum foil, typically used in cooking and food preservation. It has a moderate thickness, from 0.01 mm to 0.02 mm, enough to be waterproof and heat-retaining, and easy to shape and wrap various types of food.
Industrial Aluminum Foil
This type of aluminum foil is thicker, ranging from 0.05 mm to 0.1 mm, and is usually used in industrial applications such as insulation, soundproofing, and protecting surfaces from corrosion. Industrial aluminum foil is designed to withstand harsh conditions and has higher durability.
Product Paramenters
|
Alloy series |
8 series |
|
Typical alloys |
8079 |
|
Material |
O,H22,H24 |
|
Thickness(mm) |
0.02-0.2 |
|
Width (mm) |
100-1600 |
|
Length(mm) |
C |
|
Typical products |
Medicine foil, lunch box materials, food packaging foil, etc. |
Characteristics of Aluminum Foil
Waterproof
Aluminum foil helps keep food fresh for longer by preventing moisture and bacteria from penetrating.
Heat Retention
Aluminum foil retains the temperature of food, helping it cook evenly and faster, and retains heat longer after cooking.
Non-stick
It prevents food from sticking to surfaces during cooking, making it easier to clean up afterward.
Flexible and Easy to Shape
Aluminum foil can be easily shaped and wrapped around various types of food, from small dishes to large roasts.
Materials of Aluminum Foil
Aluminum
Normally, aluminum is the primary material used to make aluminum foil. Due to its malleability, it allows the foil to be shaped into exceptionally thin sheets. Normally, this versatility makes aluminum foil ideal for assorted packaging and insulation uses.
Printing Inks
Usually, an array of printing inks are used to create custom designs and branding on printed aluminum foil. These inks include.
Solvent-Based Inks
Concisely, these inks are valued for their adherence to non-porous surfaces such as aluminum foil. Additionally, their solvents evaporate during the drying process. This leaves behind a durable and vibrant ink layer. Commonly, these inks are used for applications that require resistance to water and chemicals.
Flexographic Inks
Often, these inks come with quick-drying properties. Thus, making them ideal for high-speed printing operations. Therefore, these inks delineate versatile usage across an array of packaging applications.
UV-Curable Inks
These inks offer quick curing as a result of ultraviolet light exposure. More importantly, this process enhances the foils’ durability and color vibrance.
Coatings
A plethora of coatings are used to boost the foils’ appearance and retard wear and tear. Commonly, these include epoxy and varnish coatings which provide additional protection against moisture, UV radiation, and scratches.
Application of Aluminum Foil
Food Packaging
Custom aluminum foil is used in food packaging to keep food fresh and safe. Usually, the high barrier prevents air and moisture entry. Thus keeping food’s freshness. Also, businesses print logos and designs on the foil. This makes the product appealing and helps the customers know the brand. Moreover, aluminum’s shiny look shows quality and catches the buyer’s eyes.
Gift Wrapping
In gift wrapping, colorful aluminum foil comes in handy forwrap ing presents with style. Usually, its shiny surface makes the wrapped gift look attractive. Also, the foil can carry custom prints like holiday themes or personal wishes. This makes the gift more special. The foil’s strength ensures that the wrapping stays intact during carrying and even peer acceptance.
Labels and Stickers
Aluminum foil labels are common for products requiring sturdy and tamper-proof labeling. Normally, these labels support the brands in relaying vital information such as safety data. Also, they help in indorsing their products. Moreover, the labels’ ability to withstand adverse conditions makes them ideal for outdoor items or products stored in harsh environments. Decorative stickers made from aluminum foil can significantly enhance products by adding stylish designs.
Arts and Crafts
Printed aluminum foil is an artistic project staple. Normally, crafters utilize it in creating sculptures, models, and mixed media art with a shiny and reflective surface. This foil enhances the art’s aesthetics by providing a modern and innovative feel. In addition, it can be cut, shaped, and manipulated. Thus, allowing diverse creative designs.
Manufacturing and Industry
In industrial contexts, printed aluminum foil can be employed in insulation products. This is due to aluminum’s capability to reflect heat. It improves energy efficiency. When used in machinery, it protects components. With customized printing, these foils can be labeled for easy identification. It also enhances organization in workshops or storage spaces.
Production process of Aluminum Foil
Casting
The production castings, fine aluminum ingots (to remove impurities) suitable for for rolled, heated to melt into molten metal. Some manufacturers will add the rolling debris to formulate different purity aluminum ingots, but the total purity is guaranteed. Molten metal generally use rolling to become billets by continuous casting.
Uniform treatment
The cast billet is maintained at a high temperature close to the melting point (20-30 hours), is homogenized. As a result of this treatment, the deformation in the casting can be well eliminated, and the impurities also dissolve in solid solution and the impurity distribution becomes uniform.
Surface cutting
Billet has irregular surface and the oxide layer.. So it is need to be cut about 8-10mm’s thick.
Hot-rolled
After the billet is heated at about 5000C, the billet is put on a rolling mill and hot-rolled. Rolling about 10 times, pressure to about 3-5mm’s thick, rolled into coils (hot coil). During rolling, rolling and recrystallization occur at the same time, the foundry structure is destroyed, resulting in rolled structure. When hot-rolled, the crystal grain size of the high-purity aluminum is about 0.5 mm.
Cold-rolled
The hot coil is cold rolled at about 800C while cooling. After about 3 times, rolled to about 0.5-0.6mm’s thick, roll into coils. This is what we commonly called the original foil.
Foil rolling
The original foil is cold-rolled into thin foil by a high-precision rolling machine. Aluminum can be rolled to minimum of 5μ. When rolling about 10μ or less, two overlapping rolling can be used. The original foil achieve the required thickness by rolling several times.
Wash winding
The rolling is finished, the rolled oil is washed away, and then wound into rolls.
Annealing
Hard foil is generally through heat treated, annealed to semi-hard or to the end of recrystallization. Sometimes provide a very soft foil by high temperature annealing close to the melting point. Annealing is an important process that determines the nature of the foil.
Cut the foil
Aluminum foil produced only by rolling has irregular edges. Moreover, most users require foil that is narrower than the maximum width of the rolling. Therefore, not only about the edge of the foil, but also the rolling direction should be cut. This process is called cutting the foil, it is sometimes also carried out before annealing.
FAQ
As one of the leading aluminum foil suppliers in China, we warmly welcome you to wholesale high-grade aluminum foil made in China here from our factory. All our products are with high quality and competitive price.