CPT International 02/2019

SPECIAL: GIFA 2019
Fotos and Graphics: Foseco
Schematic setting of Foseco’s automated treatment technology Smartt.
FOSECO
Non ferrous metal treatment
In recent years, a number
of new features
and technologies have
been added to the
Foseco FDU and MTS
equipment range – the
state of the art in technology for the
automated treatment of an aluminium
melt. Smartt software offers various
programs for rotary degassing and the
operator simply defines a melt quality
after treatment. Smartt predicts the
best treatment practice based on ambient
conditions, melt temperature,
rotor design and alloy composition.
The treatment parameters are automatically
transferred into the FDU
MTS.
In conjunction with innovative rotor
designs Foseco guarantees a constant
quality level and reliable results. Smartt
not only controls degassing but
together with forming gas any defined
hydrogen level can be reached. A customised
report system records all parameters.
The chemical grain refiner in granulated
form can be added through the
automated Metal Treatment Station.
This grain refiner offers many advantages
such as improved melt fluidity
during casting, reduced inclusion level
and better mechanical properties. The
dross remaining after the treatment is
low in metal which additionally saves
costs. The dosing equipment uses a gravimetric
load cell to ensure highest
dosing precision for best metallurgical
results as well as repeatability and traceability.
Shaft and rotor design are continuously
improved to offer high efficiency
in degassing at long service life.
Hall 12, Stand A1 + A2
www.foseco.com
ASK CHEMICALS
New binder-additive-coating system for compliance
with formaldehyde limits
German foundries are
faced with the challenge
of reducing
formaldehyde emissions
in the exhaust
gas flow of their existing
plants from 20 mg/m 3 (mass concentration)
to 5 mg/m 3 by February
2020 at the latest. At GIFA 2019, ASK
Chemicals, Hilden, Germany, will present
a specially designed binderadditive-coat
ing package that allows
foundries to comply with this new
limit value without investing in additional
secondary measures.
ASK Chemicals has developed a new
concept to provide foundries with a
solution that greatly reduces the formaldehyde
emissions by more than 70 %
and does not require investment in
washers or RTO (i.e. regenerative thermal
oxidation).
Analyses have shown that, in particular,
the exhaust gas flow from coating
drying furnaces plays a special role in
the reduction of formaldehyde emissions.
Cores produced in the cold box
process have residual amounts of formaldehyde
per se, but can, in conjunction
with an additive and coating, emit additional
formaldehyde, especially at temperatures
around 150 °C, so that the
limit of 5 mg/m 3 is easily exceeded.
The newly developed low-formaldehyde
system (LFS) from ASK Chemicals is
a specially designed package of binder,
additive and coating that, due to its
design, develops only a very low basicload
and thus a greatly reduced formal-
48