1. 材料选择：通风管道应选用符合国家相关标准的材料，如镀锌钢板、不锈钢、铝合金等。材料应具有良好的耐腐蚀性能和机械强度。
1. Material selection: Ventilation ducts should be made of excellent materials that comply with relevant national standards, such as galvanized steel plate, stainless steel, aluminum alloy, etc. The material should have good corrosion resistance and mechanical strength.
2. 外观检查：通风管道应表面光滑、无明显划痕、凹陷和氧化现象。焊缝应平整均匀，无裂纹和气孔。
2. Appearance inspection: The surface of the ventilation duct should be smooth, without obvious scratches, dents, and oxidation phenomena. The weld seam should be flat and uniform, without cracks or pores.
3. 尺寸精度：通风管道的尺寸应符合设计要求，长度、直径和壁厚等参数应在允许范围内，并保持一致性。
3. Dimensional accuracy: The size of ventilation ducts should meet the design requirements, and parameters such as length, diameter, and wall thickness should be within the allowable range and maintain consistency.
4. 连接方式：通风管道的连接部分应严密牢固，无渗漏现象。连接件如法兰、螺纹接头等应符合相关标准，并经过正确的安装和密封处理。
4. Connection method: The connection part of the ventilation duct should be tight and firm, without any leakage. Connections such as flanges, threaded joints, etc. should comply with relevant standards and undergo correct installation and sealing treatment.
5. 气密性测试：完成通风管道的安装后，开始气密性测试。通过对管道系统进行正压或负压测试，检测是否存在漏风现象。
5. Air tightness test: After completing the installation of the ventilation duct, start the air tightness test. Detect for air leakage by conducting positive or negative pressure tests on the pipeline system.
6. 防火性能：通风管道应符合防火要求，具备一定的耐火时间和防火等级。焊接部位应进行防火涂层处理。
6. Fire resistance performance: Ventilation ducts should meet fire resistance requirements, have a certain fire resistance time and fire rating. The welding area should be treated with fireproof coating.
7. 防腐性能：通风管道应具备良好的防腐性能，能够抵御腐蚀和氧化。表面可进行防腐涂层处理，如镀锌、喷塑等。
7. Corrosion resistance: Ventilation ducts should have good corrosion resistance and be able to resist corrosion and oxidation. The surface can be treated with anti-corrosion coatings, such as galvanizing, spray coating, etc.
济南通风管道厂家
Jinan ventilation duct manufacturer
8. 声学性能：通风管道应具备一定的隔声性能，能够减少噪音传播。可采用吸音材料进行内衬处理。
8. Acoustic performance: Ventilation ducts should have certain sound insulation performance to reduce noise propagation. Sound absorbing materials can be used for lining treatment.
With the summary on Shandong ventilation ducts, we hope it can be helpful to our customers. If you have any questions or need help, please click on our website: http://www.jntfgd.com Or call to inquire, we will do our best to solve it for you
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