The applications of ultraviolet light include: 1. UV light curing application in the microelectronics industry; 2. LED UV light curing application in the PCB industry; 3. Photoresin hardening application.
The applications of ultraviolet rays include:
1, Microelectronics industry-UV light curing application: Mobile phone component assembly (camera lens, handset, microphone, casing, LCD module, touch screen coating, etc.), hard disk head assembly (gold wire fixation, bearings, coils, chip bonding, etc.), DVD/digital camera (lens, Lens bonding, circuit board reinforcement), motor and component assembly (wires, coil fixing, coil end fixing, PTC/NTC component bonding, transformer core protection), semiconductor chips (moisture-proof protective coating, wafer mask, Wafer contamination inspection, UV tape exposure, wafer polishing inspection), sensor production (gas sensor, photoelectric sensor, fiber optic sensor, photoelectric encoder, etc.)
2, LEDUV light curing application in PCB industry : Fixing of components (capacitors, inductors, various plug-ins, screws, chips, etc.), moisture-proof potting and core circuit and chip protection, anti-oxidation coating protection, circuit board conformal (corner) coating, ground wire, Flying leads, coil fixing, wave soldering through hole mask.
3, Photoresin hardening application: UV curable resin is mainly composed of oligomers, cross-linking agents, diluents, photosensitizers and other specific additives. It irradiates polymer resin with ultraviolet light to cause cross-linking reaction and instant curing. Under the irradiation of a UVLED ultraviolet light curing machine, the curing time of the ultraviolet light curing resin does not need to be as long as 10 seconds at all. It can be cured in basically 1.2 seconds, which is much faster than the traditional UV mercury light curing machine. At the same time, the heat is also more ideal than UV mercury lamps. By mixing different components of UV-curable resin, products that meet different requirements and uses can be produced. Currently, UV-curable resins are mainly used in wood floor coatings, plastic coatings (such as PVC decorative boards), photosensitive inks (such as plastic bag printing), electronic product coatings (marking and circuit board printing), printing glazing ( Such as paper, playing card glazing), metal parts (such as motorcycle parts) coating, optical fiber coating, photoresist and precision parts coating, etc.
The above is the detailed content of What are the applications of ultraviolet light?. For more information, please follow other related articles on the PHP Chinese website!