Working principle of laser welding finned tube

2022-12-07

Laser Welded Spiral Finned Tube is processed by laser welding machine.

Stainless steel laser welded Spiral Finned Tube

In the traditional spiral Finned Tube, high-frequency welding, resistance welding and other technologies are used to attach stainless steel fins to the steel pipe. Laser welding of Finned Tubes has its insurmountable shortcomings.

If there is a large difference in thermal conductivity between the two sides of the finned tube, fins should be installed and used on the side with the smaller thermal conductivity to achieve a Stable balance. Therefore, it is necessary to place the side with a small thermal conductivity outside the tube as far as possible during production to facilitate later installation operations. If the thermal conductivity on both sides is not high, only side panels can be assembled on both sides to enhance heat conduction. However, if the structure is limited, fins can be omitted, as long as both sides are balanced. In another case, if the thermal conductivity on both sides of the tube is large, there is no need to use finned tubes. Of course, in order to further improve the heat conduction, threaded pipes or corrugated pipes can be used instead of light pipes, and the effect is also very prominent.

Finned Tube is a kind of wear-resistant, new and high-efficiency heat transfer material, and it is a heat exchange element with High Efficiency and Energy Saving during operation. This equipment is mainly used in high-frequency power as a heat source, and at the same time, it can reasonably and effectively heat the steel pipe and steel strip, so that they are welded together as a whole. Finned tubes are widely used in petrochemical industry, economizer, waste heat recovery, greenhouse, power plant boiler greenhouse, wood drying and other industrial applications. The installation of finned tubes is simple and economical, reducing the connection points, making assembly more economical and efficient, greatly reducing the possibility of joint leakage, easy after-sales maintenance, and basically no maintenance after installation.

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