Aluminum Coil
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01
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02
Quality control
In the processing of production, our professional technical engineers inspect the processing to ensure the quality of products,After our machine finish , our engineer will make 24 hours test constantly and ensure the machine reach to the best performance.
03
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04
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What is Aluminum Coil
Aluminum coil can be produced from aluminum ingots or other forms of raw aluminum (called cold rolling or direct cast) or from a smelting process directly through rolling (called continuous cast). These sheets of rolled aluminum are then rolled up, or coiled, around a core.
Benefits of Aluminum Coil
Lightweight: Aluminum is a lightweight material, making it ideal for applications where weight is a concern. This property makes it an ideal choice for transportation and construction industries where reduced weight can lead to increased fuel efficiency and lower costs.
Corrosion-resistant: Aluminum is naturally corrosion-resistant, meaning it can withstand harsh environments and exposure to moisture without rusting. This makes it ideal for outdoor applications, such as gutters and roofing.
Easy to shape: Aluminum can be easily formed and shaped, making it ideal for a wide range of applications.It can be rolled into coils or sheets, making it suitable for use in a variety of industries.
High thermal conductivity: Aluminum has excellent thermal conductivity, which makes it ideal for applications where heat dissipation is important. It is commonly used in HVAC systems and heat exchangers.
Recyclable: Aluminum is one of the most recyclable materials, which makes it a sustainable choice for many applications. Recycling aluminum requires only 5% of the energy needed to produce new aluminum, which significantly reduces energy consumption and carbon emissions.
Aesthetic appeal: Aluminum has a bright, reflective finish that can enhance the aesthetic appeal of products, making it ideal for architectural applications. Additionally, it can be easily painted or coated to match specific design requirements.
Difference between Copper Coil and Aluminium Coil
|
Parameter |
Copper Coil |
Aluminium Coil |
|
Basic |
A coil of multiple turns that is made of copper tubing is referred to as copper coil. |
A coil of multiple turns that is made of aluminium tubing is referred to as an aluminium coil. |
|
Heat transfer capability |
Copper coil has far better heat transfer capability than aluminum coil. |
The heat transfer capability of aluminium coil is lower than that of the copper coil. |
|
Cost |
Copper coil is more expensive than aluminium coil. |
Aluminium coil is less costly than copper coil. |
|
Durability |
Copper coils are stronger and more durable than aluminium coil. |
Aluminium coils are not stronger as the copper coils, and hence are less durable. |
|
Material required |
In the case of copper coils, more copper material is required to make a coil. |
In the case of aluminium coils, less aluminium material is required to make a coil. |
|
Cleaning & maintenance |
Copper coils are easier to clean and maintain. |
Aluminium coils are difficult to clean and maintain due to the protecting cabinet around them. |
|
Corrosion resistance |
Copper coils are more corrosion resistant, and can be repaired easily. |
Aluminium coils are less resistant to corrosion, due to which they need to be replaced. |
|
Design flexibility |
Copper coils are less flexible in terms of design. |
Due to high malleability, aluminium coils are highly flexible in terms of design. |
|
Lifespan |
Copper coils have longer lifespan. |
Aluminium coils have shorter lifespan. |
|
Refrigerant compatibility |
Copper coils are compatible with a wide range of refrigerants. |
Aluminium coils are not compatible with a variety of refrigerants. |
|
Weight |
Copper coils are heavier |
Aluminium coils are lighter in weight. |
|
Thermal conductivity |
Copper coils have high thermal conductivity. |
Aluminium coils have lower thermal conductivity. |
|
Electrical conductivity |
Copper coils have high electrical conductivity, making them more energy efficient |
Aluminium coils have low thermal conductivity |
|
Efficiency |
Copper coils are more efficient in terms of heat transfer. |
Aluminium coils are less efficient than copper coils. |
5 Common Different Types of Aluminum Coil and Their Applications
1000 series aluminum coil
This is the most common type of aluminum coil and is used for a variety of applications, including packaging, building materials, and electrical components.
It is also the most affordable type of aluminum coil.
The most common alloy in this series is 1100, which is 99% pure aluminum. It is a soft and ductile material that is easy to work with. It is also very resistant to corrosion.
Applications:
Packaging: Used to make beverage cans, food containers, and other packaging materials.
Building materials: Used to make siding, roofing, and other building materials.
Electrical components: Used to make conductors, transformers, and other electrical components.
Foil: Used to make food packaging, electrical insulation, and other thin materials.
Extruded products: Used to make window frames, door frames, and other extruded products.
Stamping: Used to make beverage cans, food containers, and other stamped products.
Anodizing: Used to create a decorative and protective finish on the aluminum surface.
Machining: Used to create precision parts from aluminum.
2000 series aluminum coil
This type of aluminum coil is stronger and more durable than 1000 series aluminum coil.
It is also more resistant to corrosion.
The most common alloy in this series is 2024, which is 99.5% pure aluminum with 4.5% copper. It is a strong and lightweight material that is often used in aircraft construction.
Applications:
Transportation: Used to make car parts, boat hulls, and other transportation components.
Machinery: Used to make machine parts, tools, and other machinery components.
Chemical processing: Used to make tanks, pipes, and other equipment for chemical processing.
Marine applications: Used to make ship hulls and other marine equipment.
Sports equipment: Used to make bicycles, skis, and other sports equipment.
Architectural applications: Used to make curtain walls, window frames, and other architectural components.
3000 series aluminum coil
This type of aluminum coil is heat-treatable, which means that it can be strengthened by heat.
It is also more resistant to wear and tear than other types of aluminum coil.
The most common alloy in this series is 3003, which is 99.5% pure aluminum with 0.5% manganese. It is a strong and ductile material that is easy to work with.
Applications:
Aircraft: Used to make aircraft parts, such as fuselages and wings.
Sports equipment: Used to make bicycles, skis, and other sports equipment.
Marine applications: Used to make ship hulls and other marine equipment.
Structural applications: Used to make bridges, buildings, and other structural components.
Tanks and pressure vessels: Used to make tanks and pressure vessels that need to withstand high pressure.
Heat exchangers: Used to make heat exchangers that transfer heat efficiently.
5000 series aluminum coil
This type of aluminum coil is the most ductile type of aluminum coil.
It can be easily bent and formed into different shapes.
The most common alloy in this series is 5052, which is 99.5% pure aluminum with 0.5% magnesium. It is a soft and ductile material that is easy to work with. It is also very resistant to corrosion.
Applications:
Beverage cans: Used to make beverage cans and other stamped products.
Building materials: Used to make siding, roofing, and other building materials.
Chemical processing: Used to make tanks, pipes, and other equipment for chemical processing.
Marine applications: Used to make ship hulls and other marine equipment.
Heat sinks: Used to dissipate heat from electronic components.
Solar panels: Used to make solar panels that absorb sunlight and convert it into electricity.
7000 series aluminum coil
This type of aluminum coil is the strongest type of aluminum coil.
It is also very resistant to corrosion.
The most common alloy in this series is 7075, which is 98% pure aluminum with 1.5% zinc, 0.6% magnesium, and 0.3% copper. It is a very strong and lightweight material that is often used in aerospace applications.
Applications:
Structural applications: Used to make bridges, buildings, and other structural components.
Marine applications: Used to make ship hulls and other marine equipment.
Aerospace applications: Used to make aircraft parts, such as fuselages and wings.
Sports equipment: Used to make bicycles, skis, and other sports equipment.
Chemical processing: Used to make tanks, pipes, and other equipment for chemical processing.
Several factors affecting the quality of aluminum coil
Alloying elements
6063 alloy is an alloy prepared with aluminum, magnesium and silicon as the main elements. Each element has a certain range of content, and the price of magnesium is high. In order to reduce costs, some manufacturers reduce the amount of magnesium to the minimum allowable content. Some even worse, the magnesium content is lower than the minimum allowed content. Some factories add waste wires and waste aluminum pots to the alloy, basically not talking about 6063 alloy. As a result, the mechanical strength of the aluminum profile is very low, which can be so low that it can be easily bent with both hands, and it is commonly known as soft as noodles. This is one of the reasons why aluminum can be thousands of dollars cheaper.
Aluminum alloy melting furnace
How to melt the prepared 6063 alloy and what kind of furnace is used are also crucial. The furnaces currently used in China are at the level of the 1940s and the 1990s. The worst manufacturers use the original crucible boiler. There are coal-burning, oil-burning, gas-burning and electric heating smelting furnaces. Some stoves have chimneys, and some have no chimneys. Generally, square furnaces (rectangular furnaces) are generally used, and the advanced ones are round furnaces. Some round furnaces can tilt the molten aluminum. There are one, two, five, ten, twenty-five and fifty-ton aluminum melting furnaces in terms of tonnage. More advanced, add a static furnace under the aluminum melting furnace. The static furnace is mainly used for preparing 6063 alloy. The furnace can be used for slagging and degassing, standing, and then casting aluminum rods and aluminum ceilings for extrusion use. The quality of the alloy prepared in the original coal-fired furnace and modern round furnace is absolutely different. Generally, furnaces should have a chimney no matter what fuel is burned. Most of the exhaust gas and slag generated during the combustion of the fuel can be discharged from the chimney. If all the flue gas and waste slag are melted in the aluminum water, so that the aluminum rod for extrusion is cast, there are serious slag bubbles inside, which is one of the reasons for the poor quality of aluminum and one of the reasons for the cheap aluminum price.
The Manufacturing Process of Aluminum Coil
The manufacturing process of aluminum coil plays a crucial role in various industries, including construction, automotive, and aerospace. Aluminum coil is a versatile material known for its lightweight yet durable properties, making it an ideal choice for numerous applications. In this article, we will explore the step-by-step process of how aluminum coil is manufactured.
The first step in the manufacturing process is the extraction of aluminum from bauxite ore. Bauxite ore is mined from the earth's crust and refined to extract alumina, which is then further processed to obtain pure aluminum. This process involves crushing the ore, followed by digestion in a caustic soda solution, precipitation of aluminum hydroxide, and finally, calcination to produce alumina.
Once the alumina is obtained, it is smelted in a high-temperature electrolytic cell to separate pure aluminum from other impurities. This process, known as electrolysis, involves passing a direct electric current through a molten mixture of alumina and cryolite. The electric current causes the aluminum ions to migrate to the cathode, where they are reduced to molten aluminum. The molten aluminum is then cast into ingots or billets, which serve as the raw material for manufacturing aluminum coil.
The next step in the process is the hot rolling of the aluminum ingots or billets. The ingots are heated to a temperature above the recrystallization point and passed through a series of rollers to reduce their thickness and increase their length. This continuous hot rolling process not only shapes the aluminum into a coil but also improves its mechanical properties.
After hot rolling, the aluminum coil undergoes various treatments to enhance its surface finish and mechanical properties. These treatments may include cold rolling, annealing, and surface cleaning. Cold rolling further reduces the thickness of the aluminum coil and improves its surface finish. Annealing involves heating the coil to a specific temperature and then slowly cooling it, which helps relieve internal stresses and improve its ductility. Surface cleaning removes any contaminants or oxidation from the coil's surface, ensuring its quality.
The aluminum coil is subjected to quality checks and inspections to meet the required specifications. These inspections may include measurements of thickness, width, and mechanical properties. The coil is then packaged and ready for distribution to manufacturers who will utilize it in various applications.
Our Factory
Over the past 20 years, Ningbo Redfir has been adhering to the development concept of "Based on the industry, technological innovation", with innovation as the core and service as the orientation, and has built a self-circulating and self-optimizing full-chain ecological industrial system.It has achieved breakthroughs in cutting-edge technology of new materials, and has continued to develop towards digitization and intelligence, boosting the low-carbon construction of smart cities.
FAQ
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