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Changzhou Dingang Metal Material Co.,Ltd.
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Changzhou Dingang Metal Material Co.,Ltd.

Dingang/Senruida has been a professional manufacturer and experienced exporter of new material Color Coated Aluminum Coil,focuses on R&D,manufacturing,processing high-end roller-coating aluminium coil material products since 2002.For the past decades,we've been growing rapidly in the industry,owning two plants of 160,000 SQM,with eight large automatic roller aluminum coating lines for aluminium sheet material products.In addition,we have stretching-bending rectifier,cleaning,draw bench,embossing...
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China Changzhou Dingang Metal Material Co.,Ltd.

2002

Year Established

50 000 000 +

Annual Sales

800 +

Employees

News
How to distinguish color-coated aluminum coils made of 3003 and 3105 aluminum alloy coils?
2024-03-10
How to distinguish color-coated aluminum coils made of 3003 and 3105 aluminum alloy coils?     Recently, we received a sample of color-coated aluminum coils from a foreign customer and asked us to test the alloy state of the sample after receiving the sample. Let's tell them whether the alloy is 3003 or 3105. However, as an ordinary buyer, it is very difficult to identify the alloy composition. As a manufacturer of color coatings, we are here to provide a more detailed identification method.After all, there is still a considerable price difference between the two alloys 3003 and 3105.Effectively identifying the differences between the two alloys can greatly reduce excessive losses caused by the buyer's inability to distinguish.     Distinguishing between color-coated aluminum coils made of 3003 and 3105 aluminum alloy coils might require a closer inspection and sometimes specialized testing.   Here are several methods that can help differentiate between the two: 1. Alloy Identification: Alloy Markings: Look for any markings or labels on the coils that specify the alloy type. Manufacturers often label the coils with the alloy number. 2. Chemical Composition: Laboratory Analysis: If possible, send samples for chemical analysis in a laboratory to determine the exact composition of each alloy. This provides accurate results but may require professional testing equipment. 3. Physical Properties: Hardness Testing: 3105 aluminum typically has slightly higher hardness compared to 3003. A hardness test could help distinguish between the two. Strength Comparison: 3105 alloy generally exhibits higher strength than 3003. A mechanical test could reveal differences in strength properties. 4. Visual Inspection: Color and Appearance: While both alloys can have similar coatings, sometimes there might be slight differences in color or appearance. However, these differences might be subtle and require a trained eye to distinguish. 5. Consultation and Expert Opinion: Manufacturer or Supplier Guidance: Reach out to the manufacturer or supplier for guidance. They may have distinctive knowledge about their products that can help you identify the specific alloy. 6. Industry Standards and Specifications: Check Specifications: Reference industry standards or specifications that outline the differences between 3003 and 3105 aluminum alloys for coated coils. 7. Professional Testing: Material Testing Labs: Consider employing the services of material testing labs or professionals who specialize in metal analysis and can provide accurate results. 8. Comparative Testing: Side-by-Side Comparison: If available, compare known samples of 3003 and 3105 aluminum alloy coils side by side to identify any discernible differences.   It's essential to note that distinguishing between these two aluminum alloys might be challenging solely through visual inspection. For accurate identification, especially in industrial or commercial applications where precision matters, consulting with experts or conducting specialized tests might be necessary.  
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Latest company news about How to distinguish color-coated aluminum coils made of 3003 and 3105 aluminum alloy coils?
How To Choose Color Coated Corrugated Aluminum Roofing Sheet?
2024-03-03
How To Choose Color Coated Corrugated Aluminum Roofing Sheet?     Choosing the right color-coated corrugated aluminum roofing sheet involves considering several factors to ensure it meets your requirements and preferences. 1) Material Quality: Opt for high-quality aluminum sheets that are corrosion-resistant and durable. Check for coatings that provide additional protection against weathering. 2) Coating Type: Choose the appropriate coating based on your location and climate. Common coatings include polyester, silicone-modified polyester (SMP), polyvinylidene fluoride (PVDF), and plastisol. PVDF coatings are known for their exceptional durability and color retention. 3) Thickness and Gauge: The thickness of the aluminum sheet is crucial for its strength and longevity. Consider the gauge (thickness) options available and choose one that suits your structural requirements. 4) Profile and Design: Corrugated sheets come in various profiles and designs. Consider the aesthetic appeal and the functionality of the chosen profile. Some profiles may be more suitable for specific weather conditions. 5) Color Selection: The color of the roofing sheet is a significant aesthetic consideration. Choose a color that complements the overall design of your building and blends well with the surroundings. Additionally, consider lighter colors if you want to reflect more sunlight and heat. 6)  Installation Requirements: Consider the installation requirements of the specific type of corrugated aluminum roofing sheet you choose. Some profiles may have specific installation guidelines that need to be followed for optimal performance.   Contact us to know more about Pre-painted corrugated aluminum sheet   Changzhou Dingang Metal Material Co.,Ltd www.cnchangsong.com / www.prepaintedaluminium.com   Robert Tang (Market Sales Director) Email: robert@cnchangsong.com  Phone: +0086 159 6120 6328 (whatsapp / wechat)
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Latest company news about How To Choose Color Coated Corrugated Aluminum Roofing Sheet?
What is the difference between PE-coated aluminum and PVDF-coated aluminum?
2024-02-25
What is the difference between PE-coated aluminum and PVDF-coated aluminum?   PVDF coated aluminium and PE coated aluminium are both common coated aluminium materials, they have certain differences in nature, application and service life. The characteristics and differences of these two types coated aluminium materials will be introduced in detail below.   1. PVDF Coated PVDF coated aluminum is a kind of coloured aluminum material based on polyvinylidene difluoride (PVDF), which has the following characteristics: Strong corrosion resistance: PVDF coated aluminum has good corrosion resistance and can resist the erosion of acid and alkali and other chemical substances, which is suitable for making chemical equipments, pipelines, containers and so on. High mechanical strength: PVDF coated aluminum has high mechanical strength and hardness, able to withstand greater pressure and impact, suitable for making mechanical parts, tools and so on. Good performance of high temperature resistance: PVDF coated aluminum has good performance of high temperature resistance, able to maintain stability in high temperature environment, suitable for making kitchen utensils, ovens, etc.. It is suitable for the occasions that need to withstand greater pressure, impact and high temperature. 2. PE Coated PE coated aluminum is a kind of coloured aluminum material based on polyethylene (PE), which has the following characteristics: Light weight: PE coated aluminum has a lower density, which makes the product lighter and suitable for making lightweight and portable products. Lower price: Compared with PVDF coated aluminium, PE coated aluminum has a lower price, which is suitable for occasions where costs need to be controlled. Compared with PVDF coated aluminum, PE coated aluminum has the characteristics of light weight, good flexibility and lower price, which is suitable for making light weight and good flexibility products. At the same time, PE coloured aluminium also has better corrosion resistance and high temperature resistance, but compared with PVDF coloured aluminium, it is slightly inferior.     To sum up, PVDF coated aluminum and PE coated aluminum have their own characteristics, and you can choose the suitable coated aluminum material according to the different needs of application scenarios. If you need to withstand greater pressure, impact and high temperature, you can choose PVDF coated aluminium; if you need to make lightweight, flexible products, you can choose PE coated aluminium. At the same time, according to the requirements of budget and service life, you can also choose the appropriate material.   Professional Manufacturer Of PE Coated Aluminum Coil / PVDF Coated Aluminum Sheet --- Changzhou Dingang Metal Material Co.,Ltd   Contact us to know more about Aluminum. www.cnchangsong.com Robert Tang ( Sales Director) robert@cnchangsong.com + 0086 159 6120 6328 (whatsapp / wechat)  
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Latest company news about What is the difference between PE-coated aluminum and PVDF-coated aluminum?
Why is the wood grain side facing up when it is produced, but when the customer receives the roll, the wood grain side is facing down?
2024-02-20
Why is the wood grain side facing up when it is produced, but when the customer receives the roll, the wood grain side is facing down?   Recently, we have received feedback from customers in South America about woodgrain coatd aluminum coil information. The general situation is as follows: According to the contract ordering requirements, customer-customized double side color coated aluminum coils have a wood grain color on the front and a customer-specified color on the back.   Our company ordered materials for bulk production in full compliance with customer requirements. During the bulk production process, our salespersons and workshop quality inspectors were very cautious about the production of this batch of goods, and have repeatedly warned about the coating requirements for paint.   However, when the customer received the coils two months later, They complained that why wood grain on the back side , and the signle black color on top side.   This situation made both us and the customer very confused. Therefore, the customer was very angry with our company and requested return of all the coils they received.     Does magic happened during transportation? We strictly tracked the goods and made a detailed understanding of it. We found where it happened the problem.   After we signed the contract, our company gave the production strictly in accordance with the requirements of the contract. There was no problem in it. After the production of our company was completed, it was also delivered to the designated location required by the customer in accordance with the requirements. The problem occurred in At this designated location, because the customer performs secondary processing and cutting of the goods at the designated location, the customer did not know the conditions of the processing during the secondary cutting process. During the processing, the production workshop did not notify the customer of the winding instructions. Communication was required, but the winding was carried out according to the workers' self-winding habits. The problem just happened here, resulting in rewinding during the secondary processing. Furthermore, when the goods arrived at the hands of the final customer, the colors were reversed.   Therefore, after the problem was discovered, our company analyzed and summarized the problem, and further refined the ordering and shipment inspection process in the later stage. If there is secondary processing, we must make a report on the customer's factory inspection.Otherwise, related risks and disputes might easily happen.   Lastly, is there any substantial quality problem with the final use of the large roll of the coating surface being reversed? In fact, this is not the case. In the actual use of coated aluminum coils, there will inevitably be an unwinding process. During the unwinding process, it can be unrolled and placed according to the actual use process, there will be no substantial quality problems happen.   But as a supplier or buyer, it is best for us to ensure the consistency of delivery of goods. Minimize unnecessary differences or misunderstandings between two parties due to such non-quality issues.       Contact us to know more about the color aluminum coil product.   Robert Tang  (Sales Diector)   CHANGZHOU DINGANG METAL MATERIAL CO.,LTD Address: Building 2,ZhiXin Business Plaza,No.25 North Street,ZhongLou District,Changzhou,Jiangsu,China Website: www.cnchangsong.com / www.prepaintedaluminium.com Email: robert@cnchangsong.com Phone: +86 15961206328 (whatsapp/wechat) Facebook: www.facebook.com/robert.tang.752 Linkedin: www.linkedin.com/in/coatingaluminum-robert  
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Latest company news about Why is the wood grain side facing up when it is produced, but when the customer receives the roll, the wood grain side is facing down?
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