Laser Welded Copper Finned Tube
Laser-welded copper finned tubes are high-efficiency heat exchange elements that use laser welding technology to firmly connect copper fins to a base tube. They are widely used in petrochemical, power, refrigeration and air conditioning industries.
- Base Tube Material:
CS (A106, A333, A179, A210, P5, P11, P22)
SS (SS304, SS316, Duplex SS2205, Super Duplex SS32750)
Nickel Alloys (825, Inconel Alloy 625, High chrome high nickle incoloy alloy Monel 400) - Tube OD:15.88mm~273mm or customized
- Fins Material:Copper
Product Details
Laser welded copper finned tubes core advantage lies in the high precision of laser welding, which enables a tight connection between the fins and the base tube, reducing thermal resistance and significantly improving heat exchange efficiency. At the same time, this non-contact processing causes minimal material damage, produces aesthetically pleasing welds that require no further processing, and extends service life.
What is a Laser Welded Copper Finned Tube?
A Laser Welded Copper Finned Tube is a specialized heat exchanger component where copper fins are precisely attached to a copper base tube using advanced laser welding technology. This innovative bonding method ensures a seamless and robust connection between the fins and the tube, significantly enhancing heat transfer efficiency. The Laser Welded Copper Finned Tube is designed to maximize surface area for thermal exchange, making it ideal for applications requiring superior heat dissipation and durability.
Production Process of Laser Welded Copper Finned Tubes
The manufacturing of Laser Welded Copper Finned Tubes involves several meticulous steps to ensure high-quality output:
- Material Preparation: High-purity copper sheets are cut into precise fin dimensions, while copper tubes are prepared as the base material.
- Fin Attachment: The copper fins are strategically placed around the base tube in a spiral or straight pattern.
- Laser Welding: A high-powered laser beam is used to weld the fins to the tube. This process ensures a strong, metallurgical bond without additional filler materials, maintaining the integrity of the copper.
- Quality Inspection: Each Laser Welded Copper Finned Tube undergoes rigorous testing for weld strength, dimensional accuracy, and thermal performance.
This advanced production process guarantees that Laser Welded Copper Finned Tubes meet stringent industry standards, offering consistent performance and longevity.
Commonly Used Materials and Specifications
Materials
The primary material used in Laser Welded Copper Finned Tubes is high-grade copper, known for its excellent thermal conductivity and corrosion resistance. Copper ensures efficient heat transfer and durability in various operating environments.
Specifications
Laser Welded Copper Finned Tubes are available in a wide range of specifications to cater to diverse industrial needs. Below is a table summarizing common dimensions and features:
| Feature | Specification Range |
|---|---|
| Tube Diameter | 5mm – 100mm (customizable) |
| Fin Height | 5mm – 30mm (customizable) |
| Fin Pitch | 2mm – 6mm (customizable) |
| Fin Thickness | 0.4mm – 2mm (customizable) |
| Material | High-grade copper |
| Welding Method | Laser welding |
These specifications ensure that Laser Welded Copper Finned Tubes can be tailored to specific application requirements, enhancing their versatility and efficiency.
Core Characteristics of Laser Welded Copper Finned Tubes
High-Efficiency Heat Transfer: Laser welding creates a metallurgical bond between the base tube and fins, resulting in near-zero contact thermal resistance and heat transfer efficiency more than twice that of traditional high-frequency welding processes.
Material Savings: The base tube thickness can be as thin as 0.8-1.5 mm, and the fin thickness is 0.3-1 mm, significantly reducing material costs.
Corrosion Resistance: The weld penetration rate can reach 100%, effectively preventing crevice corrosion and extending service life.
Why Choose Laser Welded Copper Finned Tubes?
Advantages
- High Thermal Conductivity: Copper’s excellent thermal properties ensure efficient heat transfer, reducing energy consumption.
- Corrosion Resistance: Copper naturally resists corrosion, extending the lifespan of the heat exchanger in harsh environments.
- Durability and Longevity: The laser welding process creates a strong bond, preventing fin detachment and ensuring long-term performance.
- Enhanced Heat Transfer Efficiency: The design maximizes surface area, improving heat exchange rates and overall system efficiency.
- Customizable Specifications: Available in various sizes and configurations, tailored to specific application needs.
- Environmentally Friendly: Copper is recyclable, making Laser Welded Copper Finned Tubes a sustainable choice.
Problems Solved
Laser Welded Copper Finned Tubes address several challenges in heat exchanger design:
- Poor Heat Transfer: Traditional methods often result in inefficient heat exchange, leading to increased energy costs. Laser welding ensures optimal thermal contact between fins and tubes.
- Fin Detachment: Mechanical bonding methods can lead to fin loss over time. Laser welding provides a permanent, robust solution.
- Corrosion Issues: In corrosive environments, standard materials degrade quickly. Copper’s inherent resistance mitigates this problem.
- High Energy Consumption: Inefficient heat exchangers require more energy to achieve desired temperatures. Laser Welded Copper Finned Tubes reduce energy demands by enhancing heat transfer efficiency.
- Datasheet
- Drawing
- Certificates
| Parameter | Specification |
|---|---|
| Base Tube Material | CS (A106, A333, A179, A210, P5, P11, P22), SS (SS304, SS316, Duplex SS2205, Super Duplex SS32750), Nickel Alloys (825, Inconel Alloy 625, High chrome high nickel incoloy alloy Monel 400) |
| Tube OD | 15.88 mm ~ 273 mm or customized |
| Tube Wall Thick | 2 mm ~ 28.6 mm |
| Length | 1 Meters to 28 Meters (92 feet) |
| Fin Material | CS (08F, SPCC), SS (SS304, SS316, 409, 410, 321, 347) |
| Fin Height | 8 mm ~ 35 mm |
| Fin Thick | 1 mm ~ 1.5 mm |
| Fin Pitch | 3 ~ 333 FPM (1 FPI ~ 7 FPI) |
| Fin Type | Solid, U Type, S Type, Serrated |
| Finned tube welding rate | more than 98% |
| Tube Ends | Plain cut or beveled at any degree |
Laser Welded Copper Finned Tube Appearance Dimension Inspection
Laser welded copper finned tube appearance dimension inspection is one of the important links to ensure the quality and performance of fin tubes.
The inspection items mainly include fin height, fin spacing, fin thickness, base tube wall thickness and outer diameter, etc.
Laser Welded Copper Finned Tube Bending Processing
Bending of fin tubes is an important step in the production process of laser welded copper finned tube. Bending is to bend the laser welded copper finned tube material through specific mechanical equipment to form a suitable curvature to meet different usage requirements.
This step requires strict control of the bending angle and curvature to ensure the fit between the fin and the base tube and the heat dissipation effect.
Laser Welded Copper Finned Tube Pull Off Test
Laser welded copper finned tube pull-off test is a test used to detect whether the fin tube will fall off when subjected to tension, mainly used to ensure the quality and reliability of the fin tube.
Datang’s this test is very important in the production process because the finned tube coils will be subjected to various stresses during operation, such as temperature changes and pipe expansion, which may cause the fin to fall off, thereby affecting the performance and safety of the heat exchanger .
