• Coil Coated Aluminum Sheet - Prepainted Alu Coil Product System 1
Coil Coated Aluminum Sheet - Prepainted Alu Coil Product

Coil Coated Aluminum Sheet - Prepainted Alu Coil Product

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Aluminium is a relatively soft,durable, lightweight, ductile and malleablemetalwith appearance ranging from silvery to dull gray, depending on the surfaceroughness. It is nonmagnetic and does not easily ignite. A fresh film ofaluminium serves as a good reflector (approximately 92%) of visible light and an excellent reflector (asmuch as 98%) of medium and far infrared radiation. The yield strengthof pure aluminium is 7–11 MPa, while aluminium alloys have yield strengths ranging from200 MPa to 600 MPa. Aluminium has about one-third the density and stiffness of steel.It is easily machined, cast, drawn and extruded.

Aluminium alloys (or aluminum alloys; see spellingdifferences) are alloysin which aluminium(Al) is the predominant metal. The typical alloying elements are copper, magnesium,manganese,silicon,tin and zinc. There are twoprincipal classifications, namely casting alloys and wrought alloys, both of which are furthersubdivided into the categories heat-treatableand non-heat-treatable. About 85% of aluminium is used for wrought products,for example rolled plate, foils and extrusions.Cast aluminium alloys yield cost-effective products due to the low meltingpoint, although they generally have lower tensile strengthsthan wrought alloys. The most important cast aluminium alloy system is Al–Si,where the high levels of silicon (4.0–13%) contribute to give good castingcharacteristics. Aluminium alloys are widely used in engineering structures andcomponents where light weight or corrosion resistance is required

Features:

1.     Excellent quality of products

2.     Quick delivery

3.     Best service to clients

4.     BV,SGS  avalible

5.     No buckle o waveness

6.     Tension leveling

7.     Certificate of Origin

8.     Form A,E

Packaging Detail: Carton ,Wooden pallet with plastic protection packing,standard seaworthy packing or as your request.

ProductionCapacity:

AnnualProduction capacity of 600,000 tons.

Products areexported to United States, Canada, U.A.E, Brazil, Mexico,Thailand, Vietnam,Nigeria  etc, over 100 countries andregions all over the world.

Coveredfactories with full production line

CNBM aluminumproduction base is comprised of 18 aluminumannealers, 10 coil and foilmills, 4 continuous production lines, 2hot rolling production line and 3prepainted lines.

FAQ:

1.     What is the form of payment?

Normally 30% TT, L/C

2.     Type of quotation?

FOB, CFR, CIF

3.     Port of loading?

Shanghai port

4.     Delivery time?

30 day after client’s deposit




Q: What is the role of aluminum coils in the construction of ships?
Aluminum coils are used in the construction of ships primarily for their lightweight and corrosion-resistant properties. They are commonly used in the fabrication of ship hulls, decks, and superstructures. The use of aluminum coils reduces the overall weight of the ship, improving fuel efficiency and increasing payload capacity. Additionally, the corrosion resistance of aluminum helps to prolong the lifespan of the ship, reducing maintenance costs in the long run.
Q: Well, we've got the existing old school 7 layers of peeling yucky painted siding and we're trying to weigh our options. So here's my questions:1) Is it cost effective to replace Aluminum with Vinyl?2) Is Vinyl truly as costly as we keep hearing? **Home is small 1,100 sq.ft with a 2.5 car Garage**3) Is painting this existing siding a wise choice since the current paint job on it looks terrible? We just need to make it more a home, right now it's gorgeously all new and redone inside and on the outside it still resembles the day we bought it in forclosure. Aside from my green grass I busted my butt on last summer.Please advise.
get the siding. its not that expensive and you will never have to paint again!
Q: What are the advantages of using aluminum coils over other materials?
There are several advantages of using aluminum coils over other materials. Firstly, aluminum is a lightweight material, making it easier to handle and transport. This lightweight nature also makes it more cost-effective as it requires less energy to manufacture and install. Secondly, aluminum has a high level of corrosion resistance. It does not rust, even when exposed to harsh environmental conditions, making it suitable for outdoor applications. This durability ensures a longer lifespan and reduces maintenance costs in the long run. Additionally, aluminum coils provide excellent heat transfer properties. They have a high thermal conductivity, allowing for efficient heat exchange. This makes them ideal for applications such as heating, ventilation, and air conditioning systems, where effective heat transfer is crucial. Moreover, aluminum is a highly recyclable material. It can be recycled repeatedly without losing its quality or performance. This not only reduces waste and contributes to environmental sustainability but also lowers production costs. Lastly, aluminum coils offer versatility in terms of design and customization. They can be easily formed, shaped, and coated to meet specific requirements. This flexibility allows for a wide range of applications in various industries, from automotive and construction to electronics and aerospace. Overall, the advantages of using aluminum coils, including its lightweight nature, corrosion resistance, heat transfer properties, recyclability, and versatility, make it a preferred choice over other materials.
Q: How are aluminum coils cut to size?
Aluminum coils are typically cut to size using specialized coil slitting machines. These machines have rotating circular blades that make precise cuts along the length of the coil. The coil is fed through the machine, and the blades cut the aluminum into the desired width. The cut pieces are then collected and further processed or used for various applications.
Q: What are the standard widths of aluminum coils?
The specific industry and application play a role in determining the varying standard widths of aluminum coils. Generally, aluminum coils come in widths ranging from 12 inches (30.48 cm) to 60 inches (152.4 cm). These widely accepted widths are commonly utilized in construction, transportation, and manufacturing sectors. It is worth mentioning that customized widths are also readily accessible to meet specific project needs in the market.
Q: What are the common testing methods for aluminum coils?
To ensure the quality and performance of aluminum coils, various testing methods are utilized. These methods encompass: 1. Visual inspection: A comprehensive examination of the coils is conducted to identify any visible defects like dents, scratches, or surface irregularities. This serves as an initial and fundamental step in the testing process. 2. Dimensional measurement: The dimensions of the aluminum coils are measured to verify if they meet the specified requirements. This involves assessing the length, width, and thickness of the coils. 3. Tensile testing: The mechanical properties of the aluminum coils, such as strength and elasticity, are evaluated through tensile testing. This procedure entails applying a tensile force to a sample of the coil until it fractures or deforms, enabling the determination of its tensile strength. 4. Hardness testing: The suitability of aluminum coils for specific applications is determined by assessing their hardness. Various methods, such as Rockwell or Brinell hardness tests, are employed to measure the coil's surface resistance to indentation or scratching. 5. Chemical composition analysis: The chemical composition of the aluminum coil is analyzed to ensure it meets the required specifications. Common techniques used for this analysis include spectroscopy or X-ray fluorescence (XRF) analysis. 6. Corrosion resistance testing: Due to exposure to harsh environmental conditions, it is crucial to assess the resistance of aluminum coils to corrosion. Tests such as salt spray testing or electrochemical impedance spectroscopy (EIS) are conducted to determine the coil's ability to withstand corrosion. 7. Coating quality assessment: If the aluminum coil is coated with a protective layer, testing methods such as adhesion testing, coating thickness measurement, or impact resistance testing are employed to ensure the quality and durability of the coating. These testing methods are commonly employed for aluminum coils. By conducting these tests, manufacturers can guarantee that the coils meet the required standards and perform optimally in their intended applications.
Q: Can aluminum coils be used in solar thermal systems?
Certainly, solar thermal systems can utilize aluminum coils. Aluminum, renowned for its remarkable thermal conductivity, is widely employed in heat exchangers. Within a solar thermal system, aluminum coils can serve as a component of the heat exchanger, effectively transmitting the harnessed solar energy to the working fluid. By enabling efficient heat transfer, these aluminum coils guarantee the optimal utilization of the captured solar energy when heating water or other fluids. Moreover, aluminum's lightweight nature and resistance to corrosion render it an ideal material for outdoor applications like solar thermal systems.
Q: This question asks for an explanation of the various types of coatings that can be applied to aluminum coils.
<p>Aluminum coils can be coated with several types of materials to enhance their properties for various applications. The main types include: 1. Anodized Coatings: These provide a protective oxide layer on the aluminum surface, enhancing corrosion resistance. 2. PVDF (Polyvinylidene Fluoride) Coatings: Known for their durability and resistance to UV rays, chemicals, and weathering. 3. Polyester Coatings: These are used for general-purpose applications due to their balance of properties like formability and chemical resistance. 4. PVF2 (Polyvinylidene Fluoride) Coatings: Similar to PVDF but with a thinner film, offering good weather resistance. 5. Acrylic Coatings: Known for their flexibility and adhesion, suitable for both interior and exterior applications. 6. Silane Coatings: Provide a thin, protective layer that enhances paint adhesion and corrosion resistance. Each type serves different purposes, and the choice depends on the specific requirements of the application.</p>
Q: Are aluminum coils suitable for electrical transformer applications?
Yes, aluminum coils are appropriate for use in electrical transformer applications. Aluminum coils possess several advantages over traditional copper coils when utilized in transformers. To begin with, aluminum is a lightweight metal, making it easier to handle and transport. This is particularly advantageous for large transformers where reducing weight is desired. The lightweight nature of aluminum coils also facilitates easier installation and maintenance. Secondly, aluminum exhibits excellent electrical conductivity, albeit not as conductive as copper. However, aluminum coils can compensate for lower conductivity by employing larger wire sizes or increasing the number of turns. This ensures that the transformer operates efficiently and effectively. Moreover, aluminum has a higher thermal conductivity compared to copper. Consequently, aluminum coils can dissipate heat more efficiently, which is crucial for the proper functioning and longevity of transformers. This increased heat dissipation aids in reducing the transformer's operating temperature, thereby enhancing its overall performance. Furthermore, aluminum serves as a cost-effective alternative to copper. Generally, aluminum is less expensive than copper, making it a more economical option for transformer manufacturers. This cost advantage can be particularly significant in large-scale transformer production. However, it is important to note that there are certain considerations to be mindful of when utilizing aluminum coils in transformer applications. Aluminum coils are more susceptible to oxidation and necessitate proper insulation to prevent corrosion. Additionally, aluminum coils may exhibit slightly higher electrical losses compared to copper coils, although advancements in design and manufacturing techniques have mitigated this concern. In conclusion, aluminum coils are indeed suitable for use in electrical transformer applications. They offer benefits such as lightweight construction, excellent electrical conductivity, superior thermal conductivity, and cost-effectiveness. However, it is crucial to implement proper insulation and preventive measures to address any potential challenges associated with aluminum coils, ensuring optimal performance and durability of the transformers.
Q: How can aluminium ingots be processed into aluminium coils (aluminium sheets)?
This depends on what kind of ingot, and if it is small, it needs to be melted into a furnace, cast into a large plate, and then rolled on a mill

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