Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Infrared speeds up Powder Coating of Signs

12.12.2007
A medium wave infrared oven from Heraeus Noblelight is helping Hawes Signs to achieve significant increases in production line speed in the powder coating of aluminium and steel panels at the company’s Northampton headquarters manufacturing site. The new oven was installed during an on-going, up-grading programme, which aims to see continuous improvement in all aspects of Hawes’ manufacturing operations.

Hawes Signs offers design, manufacture, installation and maintenance of a comprehensive range of external and internal signs for customers ranging from high street banks to car dealerships and supermarket chains. The company’s advanced manufacturing facilities include the latest in digital printing, vinyl cutting and flexible machine tool technology, so that it is ideally suited to handle large volume roll-out programmes as well having the capability to meet lower volume customised requirements.


Powder coatings can be quickly and reliably heated to the required temperatures by medium wave, electric infrared. Copyright Heraeus Noblelight 2007

Naturally, finishing operations are vital to the production of high quality signage and environmentally-friendly powder coating is used to provide a sign surface which offers high gloss-retention and is highly resistant to chipping, scratching, fading and weatherability. The powder-coating facility at Hawes Signs uses epoxy/polyester/pigment powders which are sprayed directly onto predominantly steel and aluminium panels, of various sizes. This powder must then be brought to a temperature which allows it to flow and fuse before being cured for a given time.

Previously, the sprayed-on powder had been pre-heated by a gas-fired infrared system before entering a warm air convection oven for final curing. However, this oven was starting to cause maintenance problems and to eliminate unwanted line stoppages while, at the same time increasing line speeds, it was decided to investigate alternative powder pre-heating methods.

Extensive tests were carried out at Heraeus’ Neston Applications Centre and these showed that the powder coatings could be quickly and reliably heated to the required temperatures by medium wave, electric infrared. As a result, a purpose-built medium wave, infrared oven was conveniently retrofitted into the existing powder coating and curing line, between the coating cabin and the warm air oven. This consists of two parallel zones, a 50kW zone which heats the coated side of the panels and a 35kW zone which heats the rear, uncoated side of the panels to accelerate the heating effect. Each of the zones can themselves be switched between two power outputs to accommodate two sizes of panel.

Since installation, the oven has helped to speed up the powder coating process as it heats the powder faster than the old system and it has also reduced the cure dwell time in the convection oven. In addition, quality has improved, as the medium wave heaters provide a uniform flow and fusion of the powders.

Heraeus Noblelight GmbH with its headquarters in Hanau and with subsidiaries in the USA, Great Britain, France, China, Australia and Puerto Rico, is one of the technology- and market-leaders in the production of specialist light sources. In 2006, Heraeus Noblelight had an annual turnover of 88 Million € and employed 651 people worldwide. The organisation develops, manufactures and markets infrared and ultraviolet emitters for applications in industrial manufacture, environmental protection, medicine and cosmetics, research, development and analytical laboratories.

Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company in the business segments of precious metals, sensors, dental and medical products, quartz glass and specialty lighting sources. With revenues of more than EUR 10 billion and more than 11,000 employees in over 100 companies, Heraeus has stood out for more than 155 years as one of the world’s leading companies involved in precious metals and materials technology.

Hawes Signs is part of ECCE International, a unique global signage company owned equally by Hawes (UK), Kubald (Germany) and Rousseau (France).

Further Information:

Readers:
Heraeus Noblelight GmbH
Reinhard-Heraeus-Ring 7
D-63801 Kleinostheim
phone +49 6181/35-8545, fax +49 6181/35-16 8545
E-Mail hng-infrared@heraeus.com
Press:
Dr. Marie-Luise Bopp
Heraeus Noblelight GmbH,
phone +49 6181/35-8547, fax +49 6181/35-16 8547
E-Mail marie-luise.bopp@heraeus.com

Marie-Luise Bopp | Heraeus Noblelight GmbH
Further information:
http://www.heraeus.com
http://www.heraeus-noblelight.com

More articles from Process Engineering:

nachricht Dresdner scientists print tomorrow’s world
08.02.2017 | Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS

nachricht New technology for mass-production of complex molded composite components
23.01.2017 | Evonik Industries AG

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Chlamydia: How bacteria take over control

28.03.2017 | Life Sciences

A Challenging European Research Project to Develop New Tiny Microscopes

28.03.2017 | Medical Engineering

Northern oceans pumped CO2 into the atmosphere

27.03.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>