螺旋风管的制造是选用带钢带卷，用风管成型机一次性咬出咬骨形状，沿螺旋渐开线轨迹滚成圆管状，并将咬缝压在一起，按要求长度切割而成。自投放市场以来，因其性能优异、运行成本低，广泛应用于造船、通风、空调、净化、桥梁除尘、机场、隧道等建筑行业。
The spiral air duct is manufactured by using the steel strip coil, using the air duct molding machine to bite the bone shape at one time, rolling it into a circular tube along the spiral involute track, pressing the seam together, and finally cutting it according to the required length. Since it was put on the market, because of its excellent performance and low operating cost, it has been widely used in shipbuilding, ventilation, air conditioning, purification, bridge dust removal, airport, tunnel and other construction industries.
送冷风和送热风更常见的方式是空调的管道，需要保温。还可在内部粘贴保温材料，使风管具有美观的螺旋状外观，并可避免吊顶，降低工程造价。螺旋风管的制造自动化程度高，生产速度非常快。一般风管每分钟可产生20～40米，是由于其原材料镀锌带钢低于整体镀锌钢板，其工厂化生产和标准标准化使成本低于矩形风管。
The most common way to supply cold air and hot air is the pipe of central air conditioning, which needs thermal insulation. It can also paste thermal insulation materials inside to make the air duct have a beautiful spiral appearance, avoid ceiling and reduce the project cost. The manufacturing of spiral air duct is highly automated and the production speed is very fast. Generally, the air duct can produce 20-40 meters per minute, because the price of its raw material galvanized strip steel is lower than that of the overall galvanized steel plate, and its factory production and standardization make the cost lower than that of rectangular air duct.
螺旋风管选用技术设备后，如果配备与其他工序相对应的加工设备，各工序空调风管的加工进度和质量都会有较大提升，但加工工艺仍为多工序分离加工，仍需大量人力在多台设备上旋转，空调风管的加工规划、加工力和质量仍停留在较低阶段。可喜的是，选用普通板式法兰连接技术后，空调风管的加工工序不仅少了，还省去了许多人工操作工序，仍需下料、切角、压筋、普通板式法兰成型、咬角缝、组装等工序。
After selecting advanced technical equipment for spiral air duct, if equipped with processing equipment corresponding to other processes, the processing progress and quality of air duct in each process will be greatly improved, but the processing process is still multi-process separation processing, and a lot of manpower is still needed to rotate on multiple equipment, and the processing planning, processing power and quality of air duct in air conditioning still remain at a low stage. Fortunately, after selecting the common plate flange connection technology, the processing procedures of the air conditioning duct are not only less, but also many manual operation procedures are saved. There are still processes such as blanking, corner cutting, rib pressing, common plate flange forming, undercut joint, assembly, etc.
接头为周向，接头强度远高于径向直接头，所以在1.5倍工作压力下能保证接头处无裂纹，因为其原材料镀锌带钢低于整片镀锌钢板，其工厂化生产和标准标准化使成本低于矩形风管;另外，由于其支吊架需求量小，安装工作量小，所以总成本低。由于矩形风管四角易发生湍流，有用流动面积减小，空气流动性好，有用流动面积大，产品的二次噪声因强度大而小。因此，风管振动引起的低频噪声更小，空气流动性能好，系统压降小，日常运行系统耗电少。
The joint is circumferential, and its strength is much higher than that of the radial straight head, so there is no crack at the joint under 1.5 times of working pressure, because its raw material galvanized strip steel is lower than the whole galvanized steel plate, and its factory production and standardization make its cost lower than the rectangular air duct; In addition, the total cost is low due to the small demand for its supports and hangers and the small installation workload. Because the four corners of the rectangular air duct are prone to turbulence, the useful flow area is reduced, the air flow is good, the useful flow area is large, and the secondary noise of the product is small due to the high intensity. Therefore, the low-frequency noise caused by air duct vibration is smaller, the air flow performance is good, the system pressure drop is small, and the daily operation system consumes less power.
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