What is the reason for the crack of the LED lamp pc coverWhat is the reason for the crack of the LED lamp pc cover
The reason for the cracking of the pc cover is that the molecular chain structure of the PC is damaged and the molecular chain is broken, resulting in cracks on the surface. There are several factors that affect the molecular chain structure:
Use repeatedly. When used repeatedly, the molecules of the product will fission under the action of constant high temperature. The molecular chain will break and crack. From a high-molecular substance to a low-molecular substance, the material becomes brittle.
The stress is too large, the system is divided into two types. First of all, the shape of itself and the zd size of the mold itself and the stress generated by demolding. Secondly, the external stress on the product. If the stress is too large, the molecule will break.
envirnmental factor. Acid and alkaline environment, strong ultraviolet light, high and low temperature, so pay special attention to the environmental impact during use.