At present, the application of [UVLED curing light source] in the processing industry has been very popular. Among them, the development of UVLED light source technology in the metal processing industry has always received great attention. Metal processing has always been an industry with relatively high technical content and operational requirements. UV curing technology is just to fill in this area of the short board. Today we are going to share this knowledge with you.
The bonding of the metal lead terminal is the metal pin stuck into the glass and coated with UV adhesive. Although this bonding is not as strict as the above requirements for the direct contact between the adhesive and the liquid crystal material, it is required that the adhesive has moderate viscosity, does not flow after gluing, good surface dryness when UV curing, good electrical insulation, high bonding strength for glass and metal, and excellent resistance to moisture and heat aging.
In colored formulations, pigments compete with UVLED initiators to absorb UV light, which will affect the utilization of UV photoinitiators to light, and in turn affect the concentration of free radicals that can be generated, reducing the free radical initiation rate and cross-linking curing speed. Different pigments have different absorptivity and transmittance to different wavelengths of light, the smaller the absorption rate of pigments, the greater the light transmittance, the less the loss of light energy. The UV absorption capacity of carbon black is higher, the curing is the slowest, and the white pigment is highly reflective, which also prevents curing. In general, the absorption order of ultraviolet light is: black, purple, blue, cyan, green, yellow, red. When the amount of pigment is too large, the curing of the surface layer of the paint film is not affected, but the light energy obtained in the deep layer is very little, the curing of the deep layer of the paint film is greatly affected, which is easy to wrinkle and difficult to adhere.
The pre-drying degree before UVLED light curing has a great impact on the performance of the cured film, when the drying is not complete, slow down the UV light curing speed, this is because, although the water has a certain effect on the inhibition of oxygen polymerization, but this can only make the surface of the ink film quickly solidified, that is, only the surface dry, and can not achieve solid drying, because the water contained in the film is difficult to escape. It is difficult for the cured film to become a uniform and continuous phase, and it is white and opaque. The presence of water makes the film temperature low, which is not conducive to improving the gel conversion rate and the film adhesion is not good. Therefore, the control of formula water content is not only the requirement of formula stability, but also consider the drying efficiency.
The metal processing industry has made great progress after the introduction of uvled light curing technology. The production capacity and product quality of the metal processing industry have been greatly improved.
The above explanation is the relevant knowledge of UVLED curing in the processing industry. Auvcure is a professional manufacturer of all kinds of UVLED point light source, [UVLED line light source], UVLED surface light source and [UV curing machine], and can provide solutions and customization according to the actual needs of customers. The company has Japanese production technology, products are exported to South Korea, Japan, the United States, Brazil and other places. Welcome friends from all walks of life exchange guidance. If you want to know more about the UV curing machine, welcome to consult customer service online or call the company’s service hotline for consultation, we will be happy to provide you with quality service! Some of the information/pictures in this article are from the Internet, only for the purpose of sharing new information in the industry, not for commercial use. If any rights are involved, please inform us immediately, and we will delete it immediately. Thank you.
