A case study about how a light-curable adhesive replaced a two-part epoxy for faster sensor assembly and improved the application process. ...
Protección de explosiones eléctricas y tecnología de sensores
A world leader in electrical explosion protection and sensor technology was looking to turn away from laser welding for an application that requires sealing two polycarbonates of their photoelectric sensors.
Challenge
Finding an alternative solution to laser welding for bonding a PC PCBA holder to a PC clear cover in a photoelectric sensor.
The customer was bonding PC covers to PC PCBAs by laser welding. However, they were unsatisfied with the results, as laser welding between PC and PC gives inconsistent bond results and lower units per hour (UPH). It also requires large laser weld equipment that takes up a lot of floor space. Our Dymax Application Engineers recommended using light-curing adhesives to replace the current laser weld process.
Solution
Dymax 3094-GEL-REV-A provided the best bonding results by providing IP67 ingress protection and meeting reliability requirements.
To support the customer in finding the most suitable light-curing adhesives and curing equipment for the process, the AE team tested several materials with customer parts in our laboratories and found that 3094-GEL-REV-A provided the best bonding strength when being cured with a 5000-EC flood curing system. This curing system offers high-intensity curing energy over a 5x5 inch area and 5-30 second cure times (typically) when using Dymax light-curable materials. Dymax application engineers optimized the process and provided the solutions to the customer, who was pleased with the test results and decided to put 3094-GEL-REV-A into their production qualification process.
Resultados
The customer improved their process by achieving better bonding and higher UPH.
The parts built with 3094-GEL-REV-A passed the customer's reliability requirement for IP67 ingress protection, thermal cycling at -40°C to 70°C, and damp-heat soaking at 70°C/90%RH. The customer was satisfied with the results and proceeded to qualify the low-stress active bonder 3094-GEL-REV-A to replace the laser welding process. Dymax solutions system provided them with faster UPH and reduced the production floor space.
Productos relacionados
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Número de producto
Descripción del producto
Disponibilidad regional
3094-GEL-REV-A
El adhesivo para plástico de baja tensión pega y sella rápidamente una variedad de plásticos. Este material tixotrópico compatible con aplicación con jet se cura en segundos al exponerlo a la luz visible/UV.
Equipo de curado con luz
Equipo de curado con luz visible/UV/LED para fabricación. La cartera de Dymax comprende lámparas concentradas en punto, reflectores/lámparas de haz focalizado, sistemas de banda transportadora y accesorios.
Equipos dispensadores
Los sistemas dispensadores de fluidos de Dymax, ya sean manuales o automatizados, y las válvulas rociadoras se integran fácilmente en los procesos de fabricación existentes para la aplicación simple de recubrimientos, lubricantes o resinas de enmascarado.
Eche un vistazo a los demás productos de Dymax que trabajan junto con este para crear una solución completa.
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