The difference between high frequency finned tube and laser welded stainless steel finned tube

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At present, there are many kinds of finned tube, mainly high frequency welded finned tube. Although it is more advanced in product quality and production automation compared with inlay, brazing and other methods, due to the factors such as the root of high frequency welded finned tube is difficult to be welded through and there are wrinkles at the root, there are still many shortcomings in heat exchange efficiency and dust prevention convenience of high frequency welded finned tube.

Finned tube is a kind of heat exchange element. In order to improve the heat exchange efficiency, usually add fins on the surface of the heat exchange tube to increase the surface area (or internal surface area) of the heat exchange tube, so as to achieve the purpose of improving the heat exchange efficiency.

https://szmurphy.en.alibaba.com/product/62419015958-811592052/Murphy_Aluminum_industrial_electric_boiler_laser_welding_heat_exchanger_Laser_Welded_Finned_Tubes_heat_exchange_for_air_cooler.html?spm=a2700.icbuShop.89.1.38554a24KNnj8q

As a heat exchange element, finned tube works in the condition of high temperature flue gas for a long time, such as the working environment of finned tube for boiler heat exchanger is bad, high temperature and pressure, and it is in corrosive atmosphere, which requires the finned tube to have high performance index.



1) anti corrosion

2) anti wear

3) low contact resistance

4) high stability

5) dust prevention capacity

Advantages of Murphy thermal technology laser welding stainless steel finned tubes:

1. Using pulse laser welding technology, the welding of the winding piece is completed synchronously, and the welding adhesion rate of the segment piece reaches 100%.

2. Laser welding is metallurgical combination, and the welding strength of segment can reach more than 600MPa.

3. The laser welding machine adopts the servo drive system, and the transmission accuracy can reach the level of hundredth meter.

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