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Laser welding fin tube processing dimensions and parameters

Posted on 2024/04/26
Laser welded finned tubes are used in civil wall-mounted boilers, industrial boilers, etc. The advantage is that the contact thermal resistance is zero. Compared with high-frequency welding, it has the characteristics of large fin ratio, light weight, and the assembled heat exchanger is compact in size, which is more energy-saving and environmentally friendly.

Laser welded fin tubes for heat exchanger
Laser welding fin tube processing dimensions and parameters
Material name: stainless steel + stainless steel, stainless steel + carbon steel, stainless steel + copper, carbon steel + carbon steel, carbon steel + copper, copper + copper

Specification
Wall thickness(mm) Fin pitch(mm) Fin height(mm) Fin thickness(mm)

Φ10

1.2-2

2-3.5

<5

0.3-1

Φ12

<6

Φ16

<8

Φ19

>1.0

2-5

<9

0.5-1

Φ22

>1.2

2-5

<11

Φ25

>1.3

2-6

<12.5

Φ28

>1.5

2-8

<14

0.8-1.2

Φ32

>1.5

2-8

<16

Φ38

>1.8

2-10

<19

Φ45

>2

2-10

<23

Laser welded fin tube is a technologically advanced product and has irreplaceable advantages.
1: The thickness of the base tube can be between 0.8-1.5 mm, and the thickness of the fins can be between 0.3-1 mm. Compared with other processes, the material cost is greatly saved.
2: The welding penetration rate is high, which can prevent gap corrosion, extend the service life and reduce the heat transfer resistance.
3: Break through material limitations and can use different materials for processing.
4: Easy for secondary processing, pipe coiling and bending can be performed directly.
5: The welding heat affected zone is small and the metallographic changes are small, making it possible to process small diameter finned tubes.

Laser welding finned tubes for Heat exchanger-Datang Fin Tube
The materials used for heat exchange tubes and condenser tubes should have excellent heat transfer performance, good corrosion resistance, erosion resistance, and abrasion resistance. They should also have good strength, stiffness, and plasticity, and be easy to process and manufacture.
Laser welded fin tubes (Laser welded fin tubes) 4 laser welded fin tube machines, daily productivity of 2000 meters
Laser welded fin tubes use laser welding technology to weld thinner wall thickness light tubes and fins, as well as denser fin spacing. Thinner light tubes and denser fins can improve heat transfer efficiency. Good welding penetration and resistance to being pulled off are the basis for its long service life.
Laser welded fin tubes can achieve welding between different metals, allowing customers to achieve good heat exchange efficiency under different working conditions. Thinner wall thickness is also one of the ways to save costs.
Datangs laser welded fin tubes have stable process and good price. It provides support for the product innovation of various energy companies and provides opportunities for corporate development. Laser welded fin tubes have higher heat transfer performance and lower material costs than high-frequency welded fin tubes, and will become a market development trend.

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