Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Quick and flexible Structuring of Glass Surfaces

18.11.2011
Industry can now use a new laser process for structuring large surface areas of float glass. This technology was developed by the Laser Zentrum Hannover e.V. (LZH) and Cerion GmbH and is characterized by high quality, short processing time and flexibility in design.
The first successful use of this new process can be seen in Norderstedt, near Hamburg, Germany. Nearly 300 m² of the insulated glass façade of a new building were structured on both sides using laser technology. Each glass panel measures 2.8 m by 0.8 m, and weighs approximately 150 kg.

Complex surface decors or large area surface structuring on architectural glass are usually time-consuming and often require processes that are health endangering. For example, wet chemical etching uses hydrofluoric acid, which is highly poisonous. Sandblasting, depending on the degree of frosting or matting required, is time consuming, as several process steps are necessary. For both processes, chemical or sandblasting, the one-use masking is necessary, and a final cleaning step is also needed.

In a joint research project, LZH and Cerion have developed an industrial glass processing with a more economical and much more flexible method. A CO2 laser using infrared laser radiation (10.6 µm wavelength) is used to structure the glass. The focused beam can achieve high local intensities. and vaporizes the material on the glass surface, pinpoint for pinpoint, thus creating periodic microstructures.

At the LZH, scientists in the “Glass Group” (Technologies for Non-metals Department) adapted a technology used for metal processing to fit the needs of glass production. Any shape or form can be transferred to the glass surface using scanner technology for guiding laser beam. This makes it possible to structure glass surfaces at an extremely high speed, since only a small change in the scanner mirror angle is necessary to cover a large distance. Large surfaces can be processed at up to 5.4 square meters per hour with resolutions of 150 dpi. The frosting or matting level can be adjusted in process from transparent to opaque.

Testing of the mechanical characteristics of the lasered glass, such as bending and impulse stability was also part of the process development, especially concerning the requirements placed on static glass components in buildings. Cerion GmbH in Minden, Germany, built a prototype based on the detailed parameter studies carried out by the LZH, and this prototype was used to optimize the process for industrial use. Patents for the system technology have been applied for, and the Cerion GmbH is offering this technology to their international clients under the trademark name of CERILAS. The process is being continually improved and optimized for other application areas, for example non-slip glass surfaces, a process that has already been patented by Cerion.

Laser structuring is highly flexible for both conventional window glass or for thermally pre-stressed float glass, including single-pane safety glass. Safety glass is used for many architectural applications, both inside and out, for example glass façades, glass doors or room partitions, or for designer furniture.

The project „Development of laser-based structuring process for glass surfaces“ has received financial support from the German Federal Ministry of Economics and Technology (BMWi) through the German Federation of Industrial Research Associations "Otto von Guericke" e.V., within the framework of the supportive measure “Central Innovation Program for Medium-Sized Businesses” (ZIM).

Laser technology was used to structure glass for a building façade near Hamburg, Germany. Photo source: Cerion GmbH

Contact:
Business Development & Communications Department
Communications Group
Michael Botts
Public Relations
Tel.: +49 511 2788-151
Fax: +49 511 2788-100
E-Mail: m.botts@lzh.de
The Laser Zentrum Hannover e.V. (LZH) carries out research and development in the field of laser technology and is supported by the Ministry of Economic Affairs, Labour and Transport of the State of Lower Saxony (Niedersächsisches Ministerium für Wirtschaft, Arbeit und Verkehr).

Michael Botts | Laser Zentrum Hannover e.V.
Further information:
http://www.lzh.de/en/publication/pressreleases/2011/quickandflexiblestructuringofglasssurfaces

More articles from Process Engineering:

nachricht Copper oxide photocathodes: laser experiment reveals location of efficiency loss
10.05.2019 | Helmholtz-Zentrum Berlin für Materialien und Energie

nachricht NIST research sparks new insights on laser welding
02.05.2019 | National Institute of Standards and Technology (NIST)

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: New studies increase confidence in NASA's measure of Earth's temperature

A new assessment of NASA's record of global temperatures revealed that the agency's estimate of Earth's long-term temperature rise in recent decades is accurate to within less than a tenth of a degree Fahrenheit, providing confidence that past and future research is correctly capturing rising surface temperatures.

The most complete assessment ever of statistical uncertainty within the GISS Surface Temperature Analysis (GISTEMP) data product shows that the annual values...

Im Focus: The geometry of an electron determined for the first time

Physicists at the University of Basel are able to show for the first time how a single electron looks in an artificial atom. A newly developed method enables them to show the probability of an electron being present in a space. This allows improved control of electron spins, which could serve as the smallest information unit in a future quantum computer. The experiments were published in Physical Review Letters and the related theory in Physical Review B.

The spin of an electron is a promising candidate for use as the smallest information unit (qubit) of a quantum computer. Controlling and switching this spin or...

Im Focus: Self-repairing batteries

UTokyo engineers develop a way to create high-capacity long-life batteries

Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...

Im Focus: Quantum Cloud Computing with Self-Check

With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.

Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...

Im Focus: Accelerating quantum technologies with materials processing at the atomic scale

'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.

However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

On Mars, sands shift to a different drum

24.05.2019 | Physics and Astronomy

Piedmont Atlanta first in Georgia to offer new minimally invasive treatment for emphysema

24.05.2019 | Medical Engineering

Chemical juggling with three particles

24.05.2019 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>