{"id":12864,"date":"2021-11-19T06:54:28","date_gmt":"2021-11-19T06:54:28","guid":{"rendered":"https:\/\/duct.harsle.com\/?p=12864"},"modified":"2024-02-27T08:47:34","modified_gmt":"2024-02-27T08:47:34","slug":"how-to-produce-spiral-air-duct","status":"publish","type":"post","link":"https:\/\/duct.harsle.com\/vi\/how-to-produce-spiral-air-duct\/","title":{"rendered":"C\u00e1ch s\u1ea3n xu\u1ea5t \u1ed1ng d\u1eabn kh\u00ed xo\u1eafn \u1ed1c"},"content":{"rendered":"
Ventilation ducts are widely used in common living measures and are an indispensable part of the fresh air system. Its classification is divided into common square ducts and round ducts from appearance. The square air duct can be divided into an angle iron flange air duct and a common plate flange air duct. Round ducts have another special classification, that is, spiral ducts.<\/p>\n\n\n\n
Spiral ducts in the market are generally divided into three categories according to their materials: galvanized spiral ducts, stainless steel spiral ducts, and composite spiral ducts. Among them, the stainless steel air duct has the best quality and strong applicability, but the price is high. Spiral Air Duct<\/p>\n\n\n\n
The most widely circulated spiral duct on the market is galvanized sheet. Galvanized spiral ducts are basically the characteristics of stainless steel spiral ducts, but the price is relatively only two-thirds or even lower than that of stainless steel ducts. Composite spiral air ducts are generally used in places where the external environment is relatively common and the requirements for air ducts are not too high. Spiral Air Duct<\/p>\n\n\n\n Because the iron sheet is prone to chemical reactions in various environments, it can cause corrosion and rust. However, zinc hardly changes in dry air. In humid air, a dense basic zinc carbonate film will be formed on the zinc surface. The spiral duct is mainly plated with a layer of zinc on the duct iron sheet to protect the iron sheet. After the zinc coating is passivated, dyed, or coated with a light protectant, its protective and decorative properties can be significantly improved. Spiral Air Duct<\/p>\n\n\n\n 1. Smooth appearance, no zinc tumors, burrs, and silvery-white.<\/p>\n\n\n\n 2. Easy installation and few connection points. Spiral Air Duct<\/p>\n\n\n\n 3. Low ventilation resistance and low ventilation noise.<\/p>\n\n\n\n 4. Both strength and rigidity are good. Spiral Air Duct<\/p>\n\n\n\n 5. The thickness is controllable and can be selected arbitrarily within 5-107\u03bcm.<\/p>\n\n\n\n 6. No hydrogen embrittlement, no temperature hazard, which can ensure the mechanical properties of the material remain unchanged.<\/p>\n\n\n\n 7. It can replace part of the hot-dip galvanizing process. Spiral Air Duct<\/p>\n\n\n\n 8. Good corrosion resistance, neutral salt spray test up to 240 hours.<\/p>\n\n\n\n 9. It is completed by the hot-dip galvanizing method, which is suitable for various strong acid, alkali mist, and other strong corrosive environments.<\/p>\n\n\n\n 10. Various specifications of air ducts can be specially designed and customized according to customer requirements. Spiral Air Duct<\/p>\n\n\n\n 1. Good airtightness. Spiral Air Duct<\/p>\n\n\n\n 2. Both strength and rigidity are good.<\/p>\n\n\n\n 3. The ventilation resistance is small, the ventilation noise is small, and the round pipe is better than the square pipe.<\/p>\n\n\n\n 4. Easy installation and few connection points.<\/p>\n\n\n\n 5. High grade and beautiful appearance. Spiral Air Duct<\/p>\n\n\n\n The installation of the spiral duct significantly reduces the connection points between the pipe and the pipe and minimizes the leakage of the pipe joints. The typical spiral duct length is 3~6m, while the typical rectangular duct length is only 1 ~1.5m; and only one pipe connection is needed to connect two spiral ducts, while the connection of traditional rectangular ducts often requires a completely independent double flange system. To sum up, the spiral duct has the following advantages. Spiral Air Duct<\/p>\n\n\n\n 1. The spiral duct is a standardized product. The production of spiral round duct fittings (pipe fittings and joints) has been highly automated, systematic, and has industrialized quality control.<\/p>\n\n\n\n 2. Low installation cost. The installation time of the circular duct system is only 1\/3 of the similar rectangular duct.<\/p>\n\n\n\n 3. Usually only a small installation space is required. Without increasing any pressure drop, a round pipe with a diameter of 200mm in the same installation space can replace a rectangular pipe with a diameter of 250\u00d7150mm. Without adding additional installation space, several parallel circular pipes can replace flat rectangular pipes. Taking all factors into consideration, in most cases, the space occupied by a circular pipe is less than that of a rectangular pipe. <\/p>\n\n\n\n For the same pressure characteristics, the installation space of several circular pipes is often the same or less than that of a rectangular pipe. Many rectangular piping systems require a 4-bolt system for installation, thus adding 40 to 80 mm in all directions of the piping.<\/p>\n\n\n\n 4. Pressure reduction. The wind resistance of a circular duct is much smaller than that of a rectangular duct.<\/p>\n\n\n\n 5. Precise bite forming process. The molds used in the imported equipment are made of special steel structures. Even after three to five years of use, the surface of the pressing mold remains unchanged, so that the surface of the galvanized steel sheet is not damaged, which greatly extends the service life of the air duct, and at the same time The seams are even and flat, the bite is tight, the connection force is strong, and the airtightness is good.<\/p>\n\n\n\n 6. The leak-proof system of the safety sealing ring.<\/p>\n\n\n\n 7. The exquisite spiral pressing corrugated rib process makes the spiral duct have the best strength to withstand pressure. After the spiral corrugated rib is added, the thickness of the bite and lock seam is four times that of the pipe body. The rigidity of the pipe is very large, showing a firmness. Superiority, it can withstand the maximum pressure load without destructive deformation, the thickness of the material can be reduced by 15%, and the cost can be reduced.<\/p>\n\n\n\n 8. For the same cross-sectional area, the circumference of the rectangular duct with a length-to-width ratio of 1:3 is 40% longer than that of the spiral duct, which saves materials; in the same way, because the circumference of the spiral duct is short, the insulation material can be reduced accordingly.<\/p>\n\n\n\n 9. Beautiful pipeline layout and strong three-dimensional effect: When the pipeline must be exposed as an architectural feature, the beautiful and elegant formed flanged duct will be the best choice.<\/p>\n\n\n\n 10. The installation form of the socket-type spiral round duct.<\/p>\n\n\n\n Among our many ventilation systems, the automatic spiral duct machine has played a great role in it, and it has also brought great help to our lives, but I believe that many people still don\u2019t know our automatic spiral. Air duct machine, today, in order to help you better understand our spiral air duct machine, I will introduce some principles and uses of our automatic spiral air ductmachine for everyone to understand.<\/p>\n\n\n\n Automatic spiral duct machines are generally divided into three categories according to their materials in the market: galvanized spiral ducts, stainless steel spiral ducts, and composite spiral ducts. In order to achieve the goal of energy-saving and environmental protection of automatic spiral duct equipment, various enterprises have carried out related activities around the theme of energy-saving and environmental protection. Fully automatic spiral duct machines have increased in new product development, product design, manufacturing technology, and production line technical transformation, and a large investment has been made to promote equipment upgrades.<\/p>\n\n\n\n
Features of Spiral Duct<\/strong><\/h2>\n\n\n\n

Advantages of The Mechanism Spiral Duct<\/strong><\/h2>\n\n\n\n


