Why should the aluminum-plastic composite board retain the polyethylene plastic not less than 0.3mm thick when cutting the inner aluminum sheet and polyethylene plastic?
First of all, this value, or this thickness is not expressly provided, is not easy to control.But in the construction of concrete operation process, in order to prevent grooving when scratching the surface layer aluminum plateAt the same time, in order to ensure that corners have a certain strength and toughness,To prevent the process and dry hanging construction, appear outside aluminum plate edge burst.
Accurately stated, aluminum plate in the opening processing, not cutting, but behind the groove.
