How to Make The Spiral Duct

The spiral duct machine is to make a certain width of coil material into a spiral tube. The coil material is fed into the occlusal device through the driving mechanism and transmission mechanism. The occlusal device will coil the two sides of the coil material up and down respectively, and then through the guidance of the annular steel belt, the downward curling edge of the coil material and the upward curling edge are buckled with each other, and then the occlusal device wheel is rolled up and down relatively, Press the crimps that are buckled together. In the existing air duct machine, due to rolling friction, friction with the mold, bending deformation and other processing processes, the coil belt material in the occlusal device will produce a lot of friction heat and processing residues. The residues with higher temperatures will be bonded on the inner and outer surfaces of the pipe. Because most of the processed pipes have a longer lengths and smaller inner diameters, As a result, the residue on the inner surface of the pipe is not easy to be removed. Moreover, due to the long-time work of the mold in the occlusal device, under the high-temperature environment, the error of the crimping size will be increased after thermal expansion, the surface hardness of the die will be reduced, the surface hardness of the upper and lower occlusal device wheels will be reduced, and even the transmission shaft supporting the occlusal device wheel will be bent and deformed, resulting in the crimping of the mutual buckle can not be tightly pressed, Make the spiral duct appear water leakage, air leakage phenomenon, and the high temperature in the process will reduce the service life of the curling mold.

The Main Uses of Spiral Duct

1. Ventilation system: supply fresh air and exhaust, exhaust harmful gas outside, send outdoor fresh air indoors. Generally speaking, the flow of the ventilation system is very large, so it is necessary to use the air conveying pipe with small resistance to save the cost and operation cost. Generally, the galvanized iron pipe is used, and stainless steel pipe is used in corrosive and especially humid places.

2. Air conditioning system: spiral duct can be pasted with thermal insulation material, beautiful appearance.

3. Oil fume exhaust system: there is a lot of oil fume in the kitchens of hotels, restaurants, and hotels, which need to be discharged. Spiral duct is suitable, with good strength, economy, and practicality.

4. Dust removal system: the collection and transportation of dust removal devices can use spiral ducts.

5. Bulk material transportation: pneumatic conveying system, some finer and looser material particles can be transported by spiral air duct, with low cost and good effect.

Characteristics of Spiral Duct

Economy:

Possibility:

Nimble：

Spiral air pipe is a thin-walled circular pipe made of metal tape and material coil, which is mainly used in air conditioning and ventilation system. The material is mainly galvanized plate, and can also be made of stainless steel, copper, aluminum, color steel plate and micro perforated plate. It has the following advantages in different situations:

4. The superior structural characteristics of circular air duct fully allow the use of thinner plate processing in the same situation.

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