"The speed of laser welding is very high - up to 9 meters per minute, so the heat input to the metal is very small, which means the metal is heated at high power, but the speed is very high, and during the passage of the beam it has time to melt, and flow to the pipe And adhere, while the pipes don't have time to heat and deform, which cannot be achieved by condenser welding. Our products are 1.5 times cheaper than similar products, but the welding quality is better, and the heat dissipation efficiency is increased by 15%.
There are many kinds of Finned Tubes in China, mainly high-frequency welded finned tubes. Although it is more advanced in product quality and production automation than inlay, brazing and other methods, there are still many shortcomings in heat exchange efficiency and dust prevention convenience of high-frequency welded finned tubes due to factors such as difficult penetration of the root of high-frequency welded finned tubes and wrinkles at the root. In view of the above reasons and in response to the national guidelines and policies on energy conservation and emission reduction.
Laser welded Fin Tube is the most advanced product with irreplaceable advantages
1: The thickness of the base tube can be 0.8-1.5 mm, and the thickness of the fin can be 0.3-1 mm, which greatly saves the material cost compared with other processes.
2: High Penetration Rate can prevent gap corrosion, prolong service life and reduce heat transfer resistance.
3: Breaking through the material limit, different materials can be used for processing.
4: It is easy for secondary processing and can be directly used for coil and elbow.
5: The welding heat affected zone is small and the metallographic change is small, which makes it possible to process the small-diameter Finned Tube .
The materials used for heat exchange tubes and condensation tubes should have excellent heat transfer performance, good corrosion resistance, erosion resistance and abrasion resistance, as well as good strength, rigidity and plasticity, which are easy to process and manufacture.
Application of Finned Tube
The application of finned tubes is now very extensive. Its main purpose is to perform heat exchange, so it is mainly installed on the surface of the heat exchange tube to improve heat exchange efficiency. However, for finned tubes, there are still certain requirements for its performance, mainly including wear resistance, stability, etc., especially when used in harsh environments, it is required to have better performance, and in addition, it has lower contact heat. Resistance and good dust-proof ability.
What principles should be followed when using finned tubes to transfer heat?
(1) If the heat transfer coefficients on both sides of the tube are very different, the finned tube should be installed on the smaller side.
(2) If the heat transfer coefficient on both sides of the tube is very small, finned tubes can be installed on both sides, but don't install only one side, it will not be effective. (3) Do not install finned tubes if the heat transfer coefficient on both sides of the tube is large.
In addition, it widens the Finned Tube series, providing us with more Finned Tube options. With the help of laser welding technology, it is possible to produce tall finned tubes in harder materials such as titanium. Or it is also possible to get 100% fully welded finned tubes with different fin and tube materials, such as copper fins on Stainless steel tubes, aluminum fins on copper tubes, or even silver fins on gold tubes.
Custom Finned Tubes are available. Finned Tubes can be made in a variety of forms if desired. They can be used for cooling and heating under large-scale conditions. For example, coils in water heaters, oil coolers in large machines, heat transfer sections in boilers and heat recovery systems, condenser sections or evaporator sections in the air-conditioning and refrigeration industry, etc.
At present, Laser Welded Finned Tubes are widely used in corrosive conditions, such as heat recovery in condensing boilers, and heat exchangers in industries such as chemical, petroleum, petrochemical, metallurgy, electric power, food and marine.
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, Finned Tube
can adapt to different heat transfer conditions, such as counter-flow, cross-flow, multi-flow and multi-channel flow.
Advantage:
1. 99%-100% fully welded, with high thermal conductivity
2. Strong Corrosion Resistance
3. Welding process reinforced structure
4.Finned Tubecan be flexibly used as straight tube or curved or coil Heat Exchanger
5. Low thermal resistance between fins and tubes
6. Strong resistance to impact and thermal expansion and contraction
7. Long service life, high exchange rate, cost saving and Energy Saving
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;
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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