CPT International 02/2019
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IDECO<br />
Hydrogen Analysis in<br />
Aluminum Melt<br />
The company IDECO GmbH, situated in<br />
Bocholt, Germany, is the exclusive distributor<br />
for the HYCAL series in Central Europe, India<br />
and China.<br />
The HYCAL series is a<br />
brand of devices for<br />
measuring the hydrogen<br />
content of liquid<br />
aluminum and aluminum<br />
alloy melts.<br />
Even at very low concentrations, it is<br />
possible to analyze and adjust the<br />
hydrogen content quickly and precisely<br />
during both the melting and casting<br />
processes to meet the highest possible<br />
material requirements. The company<br />
IDECO GmbH, situated in Bocholt, Germany,<br />
is the exclusive distributor for<br />
the HYCAL series in Central Europe,<br />
India and China.<br />
IDECO is expanding their product<br />
range by adding a second measuring<br />
device for hydrogen analysis in aluminum<br />
melts. In addition to the classical<br />
procedure of “first bubble” measurement<br />
and the Density Index systems<br />
for determining the overall potential<br />
pore behavior (H2 and oxides) of a<br />
melt, the devices from the company<br />
EMC Ltd. offer the possibility of analyzing<br />
the hydrogen content directly in<br />
the liquid melt. A sensor based on a<br />
new ceramic material (CaZrO3-In) can<br />
be introduced directly into the melt at<br />
any point during the entire melting<br />
and casting process. It produces a<br />
potentiality measurement of the H2<br />
ion concentration as compared to a<br />
standard concentration contained within<br />
the probe.<br />
The aviation and automotive industries<br />
set high standards of material<br />
requirements for the aluminum industry.<br />
HYCAL devices eliminate the subjective<br />
judgment factor from the classification<br />
of pore behavior and, with<br />
their great precision, make it possible<br />
to maintain a pre-defined range of<br />
hydrogen concentration, even as low<br />
as 0,05 ml/100 g, for example. The continuous<br />
online monitoring allows for<br />
the feasibility of finding a variable<br />
optimum end point for the melting<br />
process. By continuing measurement<br />
during the casting process, one can<br />
further assure that no external factors<br />
have changed the hydrogen concentration,<br />
which results in reduced quality.<br />
For overall quality control, all measurements<br />
during the entire process<br />
are digitally saved and made available<br />
to a databank network.<br />
Particularly for the casting process<br />
with its high standards of material<br />
quality, the use of the HYCAL series for<br />
hydrogen analysis has proven to be<br />
especially economical. The HYCAL Mini<br />
is comparable in cost to classical measuring<br />
devices. The variable additional<br />
investment for the insertion probe<br />
with a capacity of 20 hours of accumulated<br />
data may be compensated by a<br />
commensurate rise in the material<br />
quality of the product.<br />
“HYCAL 1000” is the panel mounted<br />
hydrogen analysis unit featuring<br />
great flexibility for different control<br />
processes. A portable analysis unit with<br />
the identical internal components may<br />
be fitted variably to different production<br />
conditions. It has an internal gas<br />
tank, a storage battery, along with<br />
extensive software. Both devices are<br />
suited for foundries producing large<br />
quantities of top quality cast aluminum<br />
products.<br />
“HYCAL Mini” is a small portable<br />
system for the direct analysis of hydrogen<br />
concentration. It includes the analysis<br />
unit, the HYCAL measurement<br />
probe with adapter, a connection cable<br />
and PC based software for processing<br />
and storage of the measurement data.<br />
Hall 11, Stand C56<br />
www.ideco-gmbh.de<br />
Photo: Ideco<br />
NEW<br />
multiPuls<br />
160 °C<br />
Hall 11H73