- LED lamps for light-curing adhesives
- Head even transmits opaque plastics such as PMMA, PC or PA
- Suitable for adhesive layers up to 10mm
Short cycle times and process reliability are the main reasons why the joining of plastics by light-curing adhesives becomes more popular in industrial production. Such adhesives are predominantly cured with the help of LED lamps as they feature a longer lifetime and are more energy-efficient than discharge lamps. In this connection, the company Delo has recently expanded its portfolio of LED lamps by another two variants.
The Delolux 20 and Delolyx 202 area lamps have a wavelength of 365 nanometers. The two lamps can be arrayed seamlessly in both directions, longitudinal and transverse, allowing evenly irradiated areas of nearly any size and shape. UV-curing adhesives can be reliably cured and have a dry surface afterwards. The compact LED heads are suitable for fully automated systems and easy to integrate into production lines used, for example, for miniloudspeakers or electronic switches.
In addition, the company will launch the high-intensity Delolux 50 x4 lamp in a version with 400 nanometers to cure adhesive layers with a thickness of up to 10 mm. The new LED head even transmits plastics, such as PMMA, PC or PA, which are opaque when irradiated with short-wave UV light. As a consequence, process-reliable bonding of plastics is possible.
For maximum flexibility in production, the base unit provides connectors for up to four LED heads. The intensity of every single LED head can be individually controlled, allowing independent irradiation of multiple bonding areas. Interchangeable lenses at the compact lamp heads equipped with four LED chips open up a broad application spectrum comprising high intensities of up to 2,000 mW/cm² and large spot diameters of up to 10 mm.
