27.10.2014
PVA TePla AG DE0007461006
DGAP-News: PVA TePla AG: High-vacuum diffusion bonding - Introduction into industrial series application is being prepared
DGAP-News: PVA TePla AG / Key word(s): Market launch
PVA TePla AG: High-vacuum diffusion bonding - Introduction into
industrial series application is being prepared
27.10.2014 / 10:00
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* Highly efficient series production through flexible and automated process
control as well as product-specific loading facilities
* Process homogeneity and accuracy paired with maximised
component / batch size
* Suitable for materials that are extremely sensitive to reactions, such as
titanium
* No filler materials, no post-processing of the components required
PVA TePla AG, Wettenberg, Germany, is launching a high-vacuum diffusion
bonding installation ("MOV 743 HP") designed for series applications. The
high-vacuum system is designed for process quality, reliability and a
maximised component and batch size.
Benefits of diffusion bonding
By means of a hydraulic pressing device, the joining areas of the component
to be joined are pressed against each other powerfully, therefore bringing
them in close contact. By solid-state diffusion a virtually pore-free
composite material emerges which meets highest mechanical, thermal and
corrosion technical requirements. A key feature of diffusion bonding is
that usually no filler material is used so that the joint does not have any
foreign alloy components and therefore has properties similar to base
materi-als when properly executed. Due to the absence of a molten phase in
the joining process, highly accurate and exact contour bonding of precision
components can also be guaranteed. Examples of the preferred application of
the diffusion bonding in this con-text are micro-coolers and/or
micro-reactors that are characterised by extremely fine channel structures
near the joint.
Performance features of the new installation
Due to an optional force or displacement control, the new installation
allows industrial customers to optimally adapt the process and to
counteract deformation damage and therefore unnecessary rejects. This
ensures an improved total cost of ownership (TCO) and accelerated process
development. The pressing plates are 900 mm x 1000 mm in dimension and are
homogeneously actuated via several pressing stamps by means of proprietary
technology from PVA TePla. This ensures an optimised homogeneity in the
distribution of the press force. A constant and oscillating force
application can be flexi-bly programmed in the process sequence. Up to 400
tonnes of press force offers the user a high degree of variability in the
component sizes to be processed and the mate-rial requirements.
Furthermore, integrated rapid cooling ensures the shortest process times.
The design of the system for high vacuum also allows for a broad
application range with regard to the materials to be processed. In
particular, the installation is also suitable for joining materials that
are extremely sensitive to reactions, such as titanium and
titanium-containing alloys. The processed components have an excellent
visual appearance and usually do not need to be subjected to further
post-processing.
More details about the hot presses can be found on the homepage of PVA
TePla at the following link:
http://www.pvatepla.com/en/products/vacuum-furnaces/pva/vacuum-heat-treatm
ent/hotpress
With this installation, PVA TePla expands their previous series, which
contains standard equipment with pressure plate sizes from 300 mm x 300 mm
and 600 mm x 800 mm with press forces up to 250 tonnes.
Co-operation in process development
PVA TePla also provides the option of evaluating processes in this
promising technology together with their customers and possibly to add
subsequent series production in the subsidiary PVA Löt- und
Werkstofftechnik GmbH. As another development partner, the Günter-Köhler
Institute for Joining Technology and Materials Testing GmbH (ifw) in Jena,
Germany, which is a leading body in this field of technology, supports PVA
TePla.
Horst-Günter Leng, Product Manager at PVA TePla, says: "With the MOV 743 HP
hot presses, we are transferring diffusion bonding from the R&D sector to
industrial produc-tion. The ideal combination of usable space, press force
homogeneity, high vacuum and control flexibility puts diffusion bonding in
a quality and productivity range that makes an introduction into industrial
manufacturing processes almost mandatory. We see promising industries, for
example, in the field of highly stressed components in aerospace as well as
apparatuses for highly corrosive media in the chemical industry. The sale
of several installations in the last twelve months proves that the
importance of diffusion bonding is steadily growing in industrial
production."
You can obtain more information from:
Horst-Günter Leng
Product manager
PVA TePla AG
Tel: +49(0)641/68690-145
[email protected]
www.pvatepla.com
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Language: English
Company: PVA TePla AG
Im Westpark 10-12
35435 Wettenberg
Germany
Phone: 0641/686900
Fax: 0641/68690800
E-mail: [email protected]
Internet: www.pvatepla.com
ISIN: DE0007461006
WKN: 746100
Listed: Regulierter Markt in Frankfurt (Prime Standard);
Freiverkehr in Berlin, Düsseldorf, Hamburg, München,
Stuttgart
End of News DGAP News-Service
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