The main function of high-frequency Welded Finned Tube is to further improve the heat exchange efficiency, mainly by adding fins on the surface of the heat exchange tube to increase the surface area of the heat exchange tube, so as to achieve the purpose of improving the heat exchange efficiency. High frequency welding finned pipe is to use the skin effect and proximity effect of high-frequency current to heat the outer surface of the steel strip and steel pipe until it is in plastic state or melted, and complete the welding under a certain pressure of winding the steel strip.
High frequency resistance welding typically uses a current of 450,000 Hz. Using this technique, the edges of the fins wrap around the tube to provide a continuous weld.
The formation of the fin around the tube and the heat of the welding cause some upsetting or widening of the bottom of the fin, resulting in a wider contact area than the fin itself.
The length of the laser welded fin segment is less than or equal to 2.5mm. Compared with the high-frequency welded pipe (distance greater than or equal to 4.5mm), the heat dissipation area is increased by nearly 50%, which greatly reduces the material of the pipe and can also reduce the variety of heat exchangers.
Advantages of Laser Welded Finned Tubes
1. The laser welding Finned Tube (wing tube) wing plane has a high degree of automation, and the welding of the wing to the tube and the winding of the tube are synchronized
2. The welding rate is 100%, the finned tube and fin laser welding is Firm , and the welding strength is over 600MPa.
3. The precision of the laser welded pipe finishing machine is 0.05mm
4. The contact resistance is 0, and the efficient heat transfer of the Spiral Finned Tube is realized through laser welding.
5. Save production costs. The Laser Welded Finned Tube (finned tube) is less than 2.5mm. Compared with high-frequency welded spiral (spiral) Finned Tubes , the heat transfer area is increased by about 50%, which reduces material costs and reduces the volume of heat exchangers.
6. The advantage is decisive compared to traditional MAG/HF welding. The finned tube is completely connected with the base tube, the heat transfer is excellent, and the thermal performance of the finned tube is improved by 2.5 times. The continuous welding prevents the notch effect, thereby avoiding the formation of V-shaped corrosion and cracks when the finned tube is swung. The base metal has low calorific value and travel speed up to 20m/min. The thermal shock area within the base tube is minimized. Therefore, it does not include complete melting of the tube and associated metallurgical transformation of the parent metal.
Laser welding of Stainless steel finned tubes has strong adaptability and is very suitable for heat transfer between gas, gas, liquid, liquid, liquid, and various fluids, and the phase change heat of the set state will occur during operation. Variety. Through the arrangement and combination of flow channels, it can adapt to different heat transfer conditions, such as counter-flow, cross-flow, multi-flow and multi-channel flow.
Q: Why buy from us instead of from other suppliers?
A: professional experience in process manufacturing, timely delivery and long-term after-sales service. High quality products fully meet any specific requirements. We provide one-stop solution services and competitive prices.
Q: Are your products customized?
A: Yes, we can customize new products according to your requirements or drawings.
Q: what are your terms of payment?
A: T / T, PayPal
Q: how to ensure quality?
A: before mass production, the final inspection is always carried out before shipment;
Since the establishment of the company, it is our constant pursuit and commitment to meet our customers with science and technology and humanized services based on advanced science and technology as the starting point and the needs of customers.
Wuxi Mcway Equipment Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and sales. The company develops and produces laser welded Finned Tubes and laser welded Finned Tube Heat Exchanger. The base pipe materials are carbon steel, stainless steel, alloy steel, copper tube, titanium tube and nickel tube; The fin strip is made of carbon steel, stainless steel, alloy steel, copper and titanium; Our company also has the ability to produce high-frequency welded finned tubes, Extruded Finned Tubes, embedded G-type finned tubes, wound L / LL/ KL type finned tubes and Low Finned Tubes, and can be customized into cylindrical and disk shapes according to customer requirements.
The company has strong technical force, complete production equipment, advanced production technology, perfect detection means, reliable and Stable quality, and has passed the IS09001 international quality system certification. Guided by customer demand, the company can customize heat conversion products and heat energy schemes according to customer demand; The company continues to improve the quality of products, and is committed to serving petroleum, chemical industry, pharmacy, food, power plant, metallurgy, textile printing and dyeing, new energy, shipbuilding, military industry, boiler, HVAC refrigeration, waste heat recovery and other fields, so as to provide high-quality thermal energy solutions and services for the global thermal energy industry.
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