Infrared emitters for edges, corners and burrs of plastic components
Whether it’s a watering can or a steering wheel, plastic products need to function correctly for the user. Containers should not leak water at seams and vehicle passenger compartment fittings should have no sharp, protruding burrs.
Many plastic products must be deburred, others owe their final shape to rivets, welded seams or adhesives. Infrared emitters, which are matched precisely to the product edges can help here. They can perform thermal processes such as welding, gluing and deburring efficiently and in a manner which can be automated. Heraeus Noblelight will be showing contoured infrared emitters at Fakuma, which takes place in Friedrichshafen in October.
Infrared radiation heats plastic parts in a contact-free manner in a matter of seconds and is targeted at the surface to be heated. Shaped emitters direct infrared radiation precisely where it is needed. This is reinforced by reflectors, which are coated directly on the emitters so that the energy is focused precisely on a burr or a joint. As a result, the reject rate in the production of formed components can be significantly reduced.
Contoured Infrared Emitters Are Used to Join and Deburr
By using contact-free infrared, plastic components can be joined without the need for additional adhesives or other additional materials. The infrared radiation melts a thin surface layer of two plastic components very quicklyand these can then be pressed together to form, say, a reservoir for windscreen wash or brake fluid. In contrast to contact welding with hot plates, there is no residual material on the heat source and heating takes place, repeatably, in seconds.
Handles, housing parts, lids, intake pipes and covers are often injection molded in plastics. Unfortunately it is not always possible to prevent the occurrence of sharp-edged burrs, for example at the tool separation plane. With components of complex shape, the removal of burrs before subsequent processing or coating can be a very real requirement. Quartz glass infrared emitters can be shaped to follow edges or burrs, to precisely melt away the excess material without causing any damage to the work piece itself. Consequently, they are much better than many conventional techniques, which rely on special knives or the application of naked gas flames, which do not produce consistent results and cost time.
Infrared modules are compact and can be easily integrated into the production process, even in retro-fit situations. As a result, infrared heating permits in-line de-burring and the plastic components can be immediately processed further.
Infrared Heat Saves Energy
A principal advantage of infrared is that it is targeted heat. Heat is applied only where it is needed and only for as long as it is needed.
Infrared emitters are precisely matched to the production stage and they heat large surface as well as thin edges. Flexible designs mean that they can be matched to extremely complex work pieces. And, as infrared emitters are switched on and off in seconds, they are energy-efficient, they save time and allow significant reduction in production costs.
Heraeus Noblelight offers the complete spectrum of infrared radiation from near infrared (NIR) to medium wave carbon technology (CIR). We can also carry out tests on customer materials and advise on the selection of optimum emitters for specific processes.
The Hanau-based precious metal and technology group Heraeus is a globally active family-run enterprise with a history of more than 160 years. We provide high-end solutions to our customers to lastingly strengthen their competitive position. Our areas of competence include precious metals, materials and technologies, sensors, biomaterials and medical devices, quartz glass and specialty light sources. In the financial year 2013, Heraeus achieved a revenue from the sale of products of €3.6 bn, while the revenue from precious metal trading was €13.5 bn. With about 12,500 employees in more than 110 companies world-wide, Heraeus is in a leading position on its global sales markets.
Heraeus Noblelight GmbH with its headquarters in Hanau and with subsidiaries in the USA, Great Britain, France, China and Australia, is one of the technology- and market-leaders in the production of specialist light sources and systems. In 2013, Heraeus Noblelight had an annual turnover of 138 Million € and employed 875 people worldwide. The organization develops, manufactures and markets infrared and ultraviolet emitters, systems and solutions for applications in industrial manufacture, environmental protection, medicine and cosmetics, research, development and analytical measurement techniques.
For further information, please contact:
Technical: Heraeus Noblelight GmbH
Tel +49 6181/35-8545, Fax +49 6181/35-16 8545
Press: Dr. Marie-Luise Bopp
Heraeus Noblelight GmbH,
Tel +49 6181/35-8547, Fax +49 6181/35-16 8547
Dr. Marie-Luise Bopp | Heraeus Noblelight GmbH
Solar Collectors from Ultra-High Performance Concrete Combine Energy Efficiency and Aesthetics
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE
Energy-Efficient Building Operation: Monitoring Platform MONDAS Identifies Energy-Saving Potential
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
18.01.2017 | Power and Electrical Engineering
18.01.2017 | Materials Sciences
18.01.2017 | Life Sciences