Ventilation ducts are not new to everyone. They are our large indoor ventilation equipment. We can see them in some large public places, such as office buildings and shopping centers. Ventilation duct is a kind of hollow pipe, mostly round or square. The quality of ventilation pipe production and processing has a great impact on the later use and the safety factor of operators. Therefore, it is necessary for operators to understand the precautions of ventilation pipe processing.

1.通風管道加工過程中，應盡可能避免縱向接縫，但不應出現橫向接縫。此外，根據設計清潔度要求，通風管的底切和四角需要用密封膠密封。此外，通氣管接頭的密封面應設置在通氣管壁的正壓側。

1. In the process of ventilation pipe processing, longitudinal joints should be avoided as far as possible, but transverse joints should not appear. In addition, according to the design cleanliness requirements, the undercut and four corners of the ventilation pipe need to be sealed with sealant. In addition, the sealing surface of the vent pipe joint should be set on the positive pressure side of the ventilation pipe wall.

2.在風管加工過程中，通風管道不能設置加強框架或加強筋，因為這會對通風管道的質量產生一定的影響。

2. In the process of air duct processing, the reinforced frame or reinforcing rib cannot be set in the ventilation pipe, because it will have a certain impact on the quality of the ventilation pipe.

3.風管加工不能采用“S”形切割和“C”形直角切割的連接方式。此外，一些特殊的通風管道不能堵塞。

3. The connection mode of "s" shape cutting and "C" right angle cutting can not be used in air duct processing. In addition, some special ventilation ducts should not be blocked.

4.通風管完成后，用清洗液清洗。只有達到清洗標準后，才能及時密封。

4. After the ventilation pipe is finished, clean it with cleaning solution. Only when the cleaning standard is reached can it be sealed in time.

5.當玻璃纖維復合板的氣嘴為一段時，在組裝法蘭接頭前，管端的該段應用膠帶或膠液密封，防止玻璃纖維外露和散落。

5. When the air nozzle of glass fiber composite board is one section, before assembling the flange joint, the section of pipe end shall be sealed with adhesive tape or glue liquid to prevent glass fiber exposure and scattering.

6.如果是彩色涂層鋼板通風管道，內壁應保持光滑，在通風管道加工過程中涂層不應損壞。如果零件損壞，表面應涂上環氧樹脂。此外，風管加工過程中應采取防腐措施。不應使用空心鉚釘。組裝通風管道零件時，這些零件應鍍鋅。

6. If it is a color coated steel ventilation pipe, the inner wall should be kept smooth, and the coating should not be damaged during the processing of the ventilation pipe. If the parts are damaged, the surface should be coated with epoxy resin. In addition, anti-corrosion measures should be taken in the process of air duct processing. Blind rivets shall not be used. When assembling ventilation duct parts, these parts shall be galvanized.

1.通風管道加工過程中，應盡可能避免縱向接縫，但不應出現橫向接縫。此外，根據設計清潔度要求，通風管的底切和四角需要用密封膠密封。此外，通氣管接頭的密封面應設置在通氣管壁的正壓側。

1. In the process of ventilation pipe processing, longitudinal joints should be avoided as far as possible, but transverse joints should not appear. In addition, according to the design cleanliness requirements, the undercut and four corners of the ventilation pipe need to be sealed with sealant. In addition, the sealing surface of the vent pipe joint should be set on the positive pressure side of the ventilation pipe wall.

2.在風管加工過程中，通風管道不能設置加強框架或加強筋，因為這會對通風管道的質量產生一定的影響。

2. In the process of air duct processing, the reinforced frame or reinforcing rib cannot be set in the ventilation pipe, because it will have a certain impact on the quality of the ventilation pipe.

3.風管加工不能采用“S”形切割和“C”形直角切割的連接方式。此外，一些特殊的通風管道不能堵塞。

3. The connection mode of "s" shape cutting and "C" right angle cutting can not be used in air duct processing. In addition, some special ventilation ducts should not be blocked.

4.通風管完成后，用清洗液清洗。只有達到清洗標準后，才能及時密封。

4. After the ventilation pipe is finished, clean it with cleaning solution. Only when the cleaning standard is reached can it be sealed in time.

5.當玻璃纖維復合板的氣嘴為一段時，在組裝法蘭接頭前，管端的該段應用膠帶或膠液密封，防止玻璃纖維外露和散落。

5. When the air nozzle of glass fiber composite board is one section, before assembling the flange joint, the section of pipe end shall be sealed with adhesive tape or glue liquid to prevent glass fiber exposure and scattering.

6.如果是彩色涂層鋼板通風管道，內壁應保持光滑，在通風管道加工過程中涂層不應損壞。如果零件損壞，表面應涂上環氧樹脂。此外，風管加工過程中應采取防腐措施。不應使用空心鉚釘。組裝通風管道零件時，這些零件應鍍鋅。

6. If it is a color coated steel ventilation pipe, the inner wall should be kept smooth, and the coating should not be damaged during the processing of the ventilation pipe. If the parts are damaged, the surface should be coated with epoxy resin. In addition, anti-corrosion measures should be taken in the process of air duct processing. Blind rivets shall not be used. When assembling ventilation duct parts, these parts shall be galvanized.