30
A
English
⋅
Nautilus
®
CC plus
⋅
Nautilus
®
T
en
Casting non-BEGO alloys
To automatically cast non-BEGO alloys, programs
must be created for them and the relevant values
determined. See paragraph "Creating programs for
non-BEGO alloys" for detailed information.
Automatic casting is only possible with the
NAUTILUS
®
CC plus.
Proprietary programs can also be created for the
manual casting of non-BEGO alloys. This is
necessary, for instance, for printing the alloy names
in the casting logs. The preheating and final heating
processes during manual casting must be stopped
by the operator, see paragraph "Manual casting
without pyrometer" on page 56!
Creating programs for non-BEGO alloys
New program memory locations can be set up for
specific alloys when such non-BEGO alloys are
used regularly. In order to cast non-BEGO alloys
automatically, the respective alloy must first be cast
manually to harmonize the casting temperature and
the device parameters.
First, a BEGO alloy with a comparable composition
and casting temperature must be found
*)
. The
program location for this alloy is then copied in order
to apply the machine parameters (e.g. usage of the
crucible insert). The following steps are required to
do this.
*) See BEGO precious metal alloys table, BEGO
catalog or the information on alloys available in the
download center at www.bego.com.
NOTE
Alloys with a high
palladium content
are
generally cast without a crucible insert. An insert
can be used if the alloy chips rise during the
heating process and thus do not have the proper
temperature (failed "incorporation" in the
induction field):
• a graphite insert for palladium contents of up
to 30%,
• a glassy carbon insert for palladium contents
over 30%, which reliably prevents carbon from
being absorbed by the alloy.
Should the specifications made by the alloy
manufacturer differ from the above, those speci-
fications must be followed.
WARNINGS
Casting titanium is not permitted!
Risk of personal injury and damage
to the device!
ATTENTION
Aluminum (> 0.5 %) contained in
non-precious metal alloys without
beryllium may produce strong
oxides, which could cause significant
parts of the melt to remain inside the
crucible. Such alloys cannot be cast
with the NAUTILUS
®
.
ATTENTION
Alloys containing beryllium produce
strong oxides during the melting
process, will cause substantial wear
to the crucibles, and significant
amounts of the alloy will remain
inside the crucible.
Carcinogenic particles are released
when beryllium is processed!
Cast and finish only while taking
suitable protective measures!
Summary of Contents for 39701001
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