专注通风管道加工·排烟罩

1. Incorrect inclination angle of pipeline and elbow angle

性能：折叠角不平直；矩形风管的两个相对平面与两端不平行；咬人不严格；对角线不相等。

Performance: The folding angle is not straight; The two opposite planes of a rectangular duct are not parallel to both ends; Not strict in biting people; Diagonal lines are not equal.

原因：管道成对平行，相对板的长度和宽度不相等；板材下料放样设置的不正确。

Reason: The pipes are parallel in pairs, and the length and width of the relative plates are not equal; The setting of sheet cutting and layout is incorrect.

影响：会在通风管道上造成不均匀的力，安装的管道不平直，法兰垫圈不牢固，并且系统泄漏，从而导致空调负荷损失，导致使用寿命缩短。

Impact: It can cause uneven force on the ventilation duct, uneven installation of the duct, unstable flange gaskets, and system leakage, resulting in loss of air conditioning load and shortened service life.

措施：展开和下料时，应严格限制板材的直角，将板材的长度，宽度和检查对角线控制在允许范围内；落料后，管道相对部分的两块板应重叠以检查尺寸精度。

Measures: When unfolding and cutting, the right angles of the board should be strictly restricted, and the length, width, and inspection diagonal of the board should be controlled within the allowable range; After blanking, the two plates in the opposite part of the pipeline should overlap to check the dimensional accuracy.

2、管道加工材料不符合标准

2. Pipeline processing materials do not meet the standards

性能：管道表面下沉，侧面向外突出，变形明显；板的表面不平整，厚度不均匀，有明显的压痕，裂纹，砂眼，疤痕和生锈。

Performance: The surface of the pipeline sinks, the side protrudes outward, and the deformation is obvious; The surface of the board is uneven, with uneven thickness, obvious indentations, cracks, sand holes, scars, and rust.

原因：该材料不合格，不能满足制造风管的要求。

Reason: The material is not qualified and cannot meet the requirements for manufacturing air ducts.

影响：操作期间风管泄漏，空调负荷增加以及风管寿命和性能受到影响。

Impact: During operation, the air duct leaks, the air conditioning load increases, and the lifespan and performance of the air duct are affected.

措施：在制造管道之前，有必要检查材料出厂合格证书，材料合格证书，外观厚度等，以确保材料可用。

Measures: Before manufacturing pipelines, it is necessary to check the material factory certificate, material qualification certificate, appearance thickness, etc. to ensure that the materials are usable.