High-frequency welded finned tube is a kind of heat exchange element widely used in refrigeration, air conditioning and chemical fields, and its production process involves many links and elements. This article will introduce the production process of high-frequency welded finned tubes in detail, including material selection, manufacturing process, quality inspection, etc.
First, the selection of materials.
The production materials of high-frequency welded finned tubes mainly include pipes, steel strips and welding materials. Among them, the pipe is the main component of the finned tube, which is usually made of seamless steel pipe, stainless steel pipe and other materials, which has high strength, corrosion resistance and good heat conductivity. As the raw material of the fin, the steel belt is usually made of stainless steel strip or galvanized steel strip, which is required to have sufficient strength and toughness to ensure the stability and service life of the fin. Welding materials directly affect the welding quality and the reliability of finned tubes, so it is necessary to choose high-quality welding wires and electrodes.
Second, the manufacturing process.
The manufacturing process of high-frequency welded fin tube mainly includes pipe cutting, steel strip cutting, fin forming, welding of pipe and steel belt, product testing and other links.
1.Pipe cutting: The seamless steel pipe is cut according to the design requirements to ensure that the length and diameter of the pipe meet the standard, and the cutting surface is smooth and thorny.
2.Steel belt cutting: According to the width of the fin and the length of the steel belt, the steel belt is cut to a suitable width and length, and the incision is required to be smooth and thorny.
3.Fin forming: The steel strip is tightly welded to the pipe by high-frequency welding to form fins, which require the fins to be flat, uniform and crack-free.
4.Welding of pipes and steel strips: high-frequency welding technology is used to weld pipes and steel strips together, which requires firm welding, uniform welds and no porosity.
5.Product testing: Carry out quality inspection on the produced high-frequency welded fin tubes, including appearance inspection, size inspection, pressure testing, etc., to ensure that the product quality meets the standards.
3. Quality inspection.
Quality inspection is an important part of ensuring the quality of high-frequency welded fin tubes, mainly including appearance inspection, size inspection, pressure testing and other aspects. The appearance inspection mainly checks whether the surface of the finned tube is flat and smooth, and whether there are cracks, burrs and other defects; The size test is to measure the length, diameter, fin spacing and other parameters of the finned tube to ensure that it meets the design requirements; Pressure detection is to fill the finned tube with a certain pressure of gas or liquid to test its pressure resistance and sealing performance to ensure that there will be no leakage or deformation during use.
In addition to the above aspects, the quality of high-frequency welded finned tubes is also affected by factors such as production equipment and process parameters. Therefore, in the production process, it is necessary to continuously optimize the process parameters, update the equipment, and improve the production efficiency and product quality.
Fourth, the field of application.
As a high-efficiency heat exchange element, high-frequency welded fin tube has been widely used in refrigeration, air conditioning and chemical industry. In the field of refrigeration, high-frequency welded fin tubes can be used for heat dissipation of freezers, freezers and other equipment; In the field of air conditioning, it can be applied to condensers and evaporators of household air conditioners, commercial air conditioners and other equipment; In the chemical industry, high-frequency welded finned tubes can be used as the main components of heat exchangers, heat sinks and other equipment.
V. Conclusions. As an important heat exchange element, the production process of high-frequency welded fin tube involves many links and elements. In the production process, it is necessary to strictly control the selection of materials, manufacturing processes and quality inspection to ensure that the product quality meets the standards. At the same time, continuous optimization of process parameters and updating equipment are also important measures to improve production efficiency and product quality. With the continuous development of refrigeration, air conditioning and chemical industry, the application prospect of high-frequency welded finned tube will be broader.