UV-LED light curing is recommended for automotive plastic pa

Many automotive parts have been made of engineering plastics or polymer matrix composites. They need not only coatings to improve their surface properties, but also UVLED light curing coatings have outstanding advantages in this respect. UV curing has been used in this field for more than ten years. UV curing coatings have a long history, but there is another key problem in UV curing technology is the performance index of UV curing machine. In the past, we used the most UV mercury lamp curing equipment, but because of its high heat, short life and other reasons, the industry has gradually abandoned the UV mercury lamp in recent years. Light source, and aimed at UV LED light curing machine. Because UV LED light curing machine can solve the problem of UV mercury lamp in essence, and further improve the UV LED light curing ability of automobile plastic parts coating.

 

 

 

The lampshade has replaced the glass lampshade for a long time. Polycarbonate has the advantages of easy processing, light weight and flexibility, and is not easy to break. However, its surface strength is not enough, it is not resistant to scratch and scratch, and its weather resistance is poor, and it is easy to yellowing. The use of light curing coating can improve the surface properties, so it has been applied, which not only saves the coating greatly. The coating has good optical abrasion resistance and long-term weatherability. Reflector: The automobile reflector is also made of plastic, but its surface must have high reflectivity. In order to achieve this goal, the plastic surface must be treated by three times of ultraviolet irradiation. Firstly, the surface of plastics should be photochemical reactions to increase surface tension to facilitate the leveling and adhesion of UV-curable coatings. After curing with coated UV-curable varnish, the surface of plastics becomes flat and easy to metallize, and then metal deposition is completed in the vacuum depositing box. After metallization of the plastic surface, another layer of light-curing coating is needed. Its function is to protect and expand the metal reflective layer.

 

 

 

These three aspects are more important aspects of UV-LED curing for automotive plastic parts coatings. The industry also attaches great importance to it, and its curing requirements are very high. UV-LED curing machine just can meet these requirements.