In the traditional Spiral Finned Tube, high frequency welding, resistance welding and other technologies are used to make the Stainless steel fins adhere to the steel tube. Laser Welding Finned Tubes , the welding process has its insurmountable shortcomings.
Laser Welded Finned Tubes are machined by laser welding. Laser welding is an irradiation
A high-intensity laser beam hits the metal surface. Through the interaction of the laser and the metal, the metal absorbs the laser light and converts it into heat, causing the metal to melt to form cooling crystals. Laser welding machine is the most advanced laser welding equipment for finned tubes. Since the welding process is fully automatic and mechanical, the technological content and quality of laser welded finned tubes are superior to traditional cooling tubes.
Benefits of using laser to weld Finned Tubes
Laser Welded Finned Tubes are mainly used for civil wall hanging and industrial boilers in the process of use. Foreign technologies are mainly used for operation. Its main advantages are that the contact thermal resistance is zero, the whole equipment is welded at high frequency, the winging rate is large, the weight is light, the assembled Heat Exchanger is compact, the energy efficiency is high, and the emission requirements are met.
When laser welded finned tubes are manufactured, there are many kinds of Finned Tubes in China. High Quality Laser Welded Finned Tube
If high-frequency welding Finned Tubes are mainly used during operation, it has more advantages in product quality and production automation than inlaying, brazing and other methods. However, because the root of high-frequency welded finned tubes is difficult to penetrate and there are wrinkles at the root, there are many shortcomings in the heat exchange efficiency and preventing gray accumulation of high-frequency welded finned tubes. In view of the above reasons, there are policies for energy conservation
The Laser Welded Finned Tube has a fully automatic welding process, which saves labor costs; secondly, the laser-welded fins are Firm , firm, and qualified for the test with high tensile strength. Laser welding is more efficient.
Stainless Steel Laser Welded spiral Fin Tube
At the same time, the Laser Welded Spiral Finned Tube has a fully automatic welding process, which saves labor costs; secondly, the laser welded fins are firm and strong, and the test of high tensile strength is qualified; the laser welding efficiency is higher, etc.
Laser Welding Machine is the most advanced laser welding equipment for spiral Finned Tubes. Since the welding process is fully automatic and mechanical, the technological content and quality of laser welded spiral Fin Tubes are superior to conventional cooling tubes.
1. Heat conduction characteristics The heat transfer performance of the Finned Tube is related to the contact thermal resistance between the plate-fin type and the pipe, and the contact thermal resistance is determined by the contact pressure between the two. Obviously, the heat transfer characteristics of the welded fin type and the sleeve type are better, followed by the bimetallic rolled type, and the insert type and wound type are poor. After the KLM finned tube is rolled again, the contact surface increases by about 50%, and it will not be affected by the tolerance of the outer diameter of the tube. It can still maintain good contact after many cycles of cold and heat, so the contact thermal resistance is small and the heat conduction The characteristics are relatively high. Slotted Finned Tubes can increase the overall heat transfer coefficient by about 20% because of enhanced airflow disturbance. 2. High temperature resistance. When the temperature of the Finned Tube wall increases, the contact pressure between the plate-fin type and the tube will change, and the contact thermal resistance will also change. The change only lies in the Finned Tube form and the initial contact pressure. The tension of the plate-fin type of the wound sheet type decreases rapidly with the increase of temperature, so the thermal contact resistance increases rapidly; while the bimetallic sheet type can maintain balance in a relatively large temperature range.
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.
Contact Now
