1. Before processing Shenzhen white iron air ducts, it is necessary to first check whether the selected materials meet the relevant quality requirements, and whether there is a factory certificate of conformity or quality appraisal document. If there are no relevant documents, the appearance inspection should be carried out, and the following requirements should be met:

(1) 深圳白铁风管加工所选的板材表面应光滑平整、厚度均匀，并不得存在裂纹、砂眼、结疤及刺边和锈蚀的情况存在。

(1) The surface of the selected board for processing the Shenzhen white iron air duct should be smooth and flat, with uniform thickness, and there should be no cracks, sand holes, scars, burrs, or rust.

(2) 关于型钢其应等型、均匀，不应有裂纹、气泡、窝穴以及其他会影响质量的缺陷。

(2) Regarding the section steel, it should be of equal and uniform shape, without cracks, bubbles, cavities, and other defects that may affect quality.

(3) 所选的其他材料，也不能因具有缺陷，导致成品强度的降低或影响其使用的效能。

(3) The selected other materials should not have defects that reduce the strength of the finished product or affect its effectiveness in use.

2、关于深圳白铁风管加工和配件，表面应平整、圆弧均匀、纵向接缝应错开。同时期咬口缝也应要紧密，宽度均匀。焊缝则应作外观的检查，不该有气孔、砂眼、夹渣、裂纹等缺陷存在。

2. Regarding the processing and accessories of Shenzhen white iron air ducts, the surface should be flat, the arc should be uniform, and the longitudinal joints should be staggered. At the same time, the biting seam should also be tight and uniform in width. The weld seam should undergo an appearance inspection, and there should be no defects such as pores, sand holes, slag inclusions, or cracks.

3、关于制作金属风管和配件，其外径或外边长度可以允许的偏差为：小于或等于300mm为-1mm，大于300mm为-2mm，其中圆形法兰内径或矩形法兰内边的尺寸，可以允许偏差为+2mm，不平度不应大于2mm。

3. Regarding the production of metal air ducts and accessories, the allowable deviation for their outer diameter or outer edge length is -1mm for those less than or equal to 300mm, and -2mm for those greater than 300mm. The allowable deviation for the inner diameter of circular flanges or the inner edge of rectangular flanges is+2mm, and the unevenness should not exceed 2mm.

4、深圳白铁风管加工系统内的所有直角转弯处，其均应安装消声弯头，并内设镀锌铁板导流片。

4. All right angle bends in the Shenzhen white iron air duct processing system should be equipped with sound-absorbing elbows and galvanized iron plate guide vanes.

5、关于风道保温层，需要使用聚苯乙烯泡沫板进行制作。保温层边部的接合部位，则应采用梯台或榫槽结构，并用树脂进行粘贴。

5. For air duct insulation layer, polystyrene foam board shall be used for production. The joints at the edges of the insulation layer should adopt a ladder or tenon groove structure and be pasted with resin.

6、其风道采用的机械咬口，应规整严密，接口内的表面打玻璃胶。

6. The mechanical bite used in its air duct should be neat and tight, and the surface inside the interface should be coated with glass glue.

7、对于风道与风口的接合，需要用带保温层的软管进行连接。

7. For the connection between the air duct and the air outlet, it is necessary to use a hose with an insulation layer for connection.

关于深圳白铁风管加工制作时需要使用到的设备和风管制作的介绍就是这么多了，大家看完应该就有大概的了解了吧，以后碰到风管的加工制作可以参考上面的内容，保证加工的质量。

There are so many introductions about the equipment and duct production required for the processing and production of Shenzhen white iron ducts. After reading them, you should have a general understanding. In the future, when encountering the processing and production of ducts, you can refer to the above content to ensure the quality of processing.

感谢您的阅读，此文的文章来源：济南通风管道更多的内容和问题请点http://www.jntfgd.com 我们会继续努力的为您提供服务，感谢您的支持！

Thank you for reading. The source of this article is Jinan Ventilation Pipeline. For more information and questions, please click http://www.jntfgd.com We will continue to work hard to provide you with services. Thank you for your support!