镀锌板螺旋风管制作加工工艺特点及优势

Characteristics and advantages of manufacturing and processing technology for galvanized sheet spiral air ducts

（1）外观质量高。成形后的风管内壁润滑，外壁流利；

(1) High appearance quality. The inner wall of the formed air duct is lubricated, and the outer wall is smooth;

（2）风管强度大。由于外壁咬口构成的螺旋线棱筋平均散布，起到一个平均增强筋的效果，其单元强度大于通俗咬口式风管；

(2) The strength of the air duct is high. Due to the evenly distributed spiral ribs formed by the bite on the outer wall, they have an average reinforcing effect, and their unit strength is greater than that of the common bite style air duct;

（3）风管密封功能优越。由于是机械加工，能削减报酬操作掉误，确保风管紧密，漏风量远小于现行标准规则值；

(3) The sealing function of the air duct is superior. Due to its mechanical processing, it can reduce the cost of compensation and ensure that the air ducts are tight, and the air leakage rate is much lower than the current standard rules;

（4）资料用量削减。因为螺旋式风管单元强度大于通俗风管，故同类规格风管所用的卷材厚度可以减小一个型号，且风管节长比通俗咬口式风管大，相同长度的风管节口数目分明削减，加之采用无法兰衔接，可节流很多原资料；

(4) Reduce data usage. Because the strength of the spiral type air duct unit is greater than that of the ordinary air duct, the thickness of the coil used for similar specifications of air ducts can be reduced by one model, and the length of the air duct section is larger than that of the ordinary bite type air duct. The number of air duct sections of the same length is significantly reduced, and the use of flange free connections can save a lot of raw materials;

（5）加工速度快、精度高。由于是机械流水线加工，可不受功课手技能程度制约，对进步风管加工质量非常有益。

(5) Fast processing speed and high precision. As it is a mechanical assembly line processing, it is not limited by the skill level of the workers, which is very beneficial for improving the quality of air duct processing.

什么是通风管道及其产品特点浅析？

What is ventilation duct and its product characteristics?

1、通风管道防火性能好：当前普遍存在的问题是成品通风道燃烧性能和耐火限未经家有关部门检测，且部分通风道材料的燃烧性能、管壁厚度不符合要求。

1. Good fire resistance performance of ventilation ducts: The current common problem is that the combustion performance and fire resistance limit of finished ventilation ducts have not been tested by relevant departments at home, and the combustion performance and wall thickness of some ventilation duct materials do not meet the requirements.

2、造价低：通风管道与传统砖砌通风道比，能节约工程造价40%左右；

2. Low cost: Compared to traditional brick ventilation ducts, ventilation ducts can save about 40% of project cost;

3、轻质高强：与传统砖砌通风道比，菱镁通风道自重轻、强度高，能大幅度降低建筑物的承受荷载；

3. Lightweight and High Strength: Compared with traditional brick ventilation ducts, magnesite ventilation ducts have a lighter weight and higher strength, which can significantly reduce the load-bearing capacity of buildings;

4、设计灵活：通风管道可根据预留洞的大小，随时调整管道的规格尺寸；

4. Flexible design: The ventilation duct can be adjusted in size according to the reserved hole size at any time;

5、设计独特：通风管道的开口上安装了烟气止回阀和防火隔离门，可以有效防止串味和串火；

5. Unique design: The opening of the ventilation duct is equipped with a smoke check valve and a fire isolation door, which can effectively prevent odor and fire;

6、通风管道施工简单，增加了室内空间，密闭性好、不返烟、不返臭，能大幅度改善室内环境。

6. The construction of ventilation ducts is simple, increasing indoor space, with good sealing, no smoke or odor return, and can greatly improve the indoor environment.