1. Size deviation: The size deviation of ventilation ducts may lead to inaccurate installation or loose connections, affecting the ventilation effect. Dimensional deviation is mainly caused by manufacturing processes, equipment accuracy, and other factors.
2. Welding quality issues: Welding is an important process in the production of ventilation ducts, and unqualified welding quality can lead to insufficient weld strength, poor airtightness, and easy occurrence of cracks.
3. Improper surface treatment: Improper surface treatment of ventilation ducts may lead to corrosion, oxidation, and other problems, affecting the service life and appearance quality of ventilation ducts.
4. Failure of connectors: Improper selection or installation of ventilation duct connectors such as flanges and threaded joints can lead to problems such as looseness and leakage, affecting the firmness and airtightness of the pipeline connection.
5. Material quality issue: The materials used for ventilation ducts are of substandard quality, such as uneven galvanized layer, insufficient thickness, aluminum alloy containing impurities, etc., which can affect the corrosion resistance and mechanical strength of the ventilation ducts.
6. Non compliant fire performance: Ventilation ducts require a certain fire resistance time and fire rating in terms of fire performance. Improper material selection or inadequate fire prevention treatment can easily lead to fire safety hazards.
7. Airtightness issue: The airtightness of ventilation ducts is an important factor in ensuring ventilation effectiveness. If there is air leakage during installation, it can lead to a decrease in ventilation effectiveness or the inability to achieve the expected results.
8. Poor acoustic performance: Ventilation ducts require a certain level of sound insulation effect in terms of acoustic performance. If the material selection is improper or the lining treatment is not in place, it can lead to noise propagation and affect the surrounding environment.上一篇：镀锌板螺旋风管制作的优势有哪些？