Sewage tank membrane Capping has been used in a lot of cities, covering large sewage pond, sewage pond stamped green, is now the trump card choice of building materials, the city needs greening, environmental protection, sewage pool membrane structure selection is not good, the direct impact of a city's environment, so membrane structure materials in the application of sewage pool development speed very fast.

Each city's sewage pool selection of what materials to be stamped, has always been a selective problem, material selection is not good, is very easy to affect our life, the first choice of materials to be resistant to snow, long life, and good toughness, not easy to tear air leakage. Of course, once the membrane structure of the membrane material folds will have a great effect on its appearance. So we need to know that there are two types of membrane folds of the sewage pool film:

1, because the membrane surface in one direction of the disappearance of tension caused by the membrane slack, can be called as: structural folds.

2, is because of the process of membrane production defects, improper heat, packaging folding improper and caused, can be called as: material folds.

The general structure folds are temporary, will disappear with the tensile force of the membrane surface, but the material folds are permanent. To everyone, the effect of the folds of membrane structure on the structure performance is not only reflected in the visual effect, but also can not be neglected. The appearance of the fold will lead to the redistribution of the pre-tension of the film surface, so that the stress of some areas of the membrane surface is lower than the design value, when the stress of the membrane surface is lower than the design value, the local stiffness of the structure will be reduced, and the wind vibration will be easily generated. When the membrane surface stress is higher than the There is even a partial tearing of membrane structure of the sewage pool membrane. In addition, the membrane structure folds may affect the aesthetics and drainage performance of the structure.