REITEL INDURET COMPACT User manual

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REITEL Feinwerktechnik GmbH
Senfdamm 20
D - 49152 Bad Essen
Tel.: [phone] / 9432-0
Fax: [phone] / 9432-40
Operating Instructions
INDURET COMPACT
With the purchase of the INDURET-COMPACT you have made your decision for a REITEL-
quality product.
After having unpacked the device, please check carefully whether transportation damages of
any kind have occurred. If that is the case, the carrier or manufacturer must be notified within
3 days. The company will not be responsible for any damages found after that.

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CONTENTS
1 ACCESSORIES...............................................................................................................................................4
1.1 B ASIC A CCESSORIES .................................................................................................................................4
1.2 S PECIAL A CCESSORIES ..............................................................................................................................4
2 GENERAL NOTES.........................................................................................................................................5
2.1 G ENERAL S AFETY I NSTRUCTIONS .............................................................................................................5
2.2 S PECIAL I NSTRUCTIONS FOR THIS DEVICE .................................................................................................5
3 INSTALLATION............................................................................................................................................7
3.1 P ROTECTIVE GAS CONNECTION .................................................................................................................7
3.2 C OMPRESSED AIR CONNECTION .................................................................................................................9
3.3 W ATER CONNECTION ................................................................................................................................9
3.4 C ONNECTION FOR POWER SUPPLY ...........................................................................................................10
4 PREOPERATIONAL ACTIVITIES...........................................................................................................11
4.1 G ENERAL N OTES .....................................................................................................................................11
4.2 C LEAN WORKING AREA FOR PRECISE CASTING ........................................................................................11
4.3 I NVESTMENT ( MANUFACTURER ’ S RECOMMENDATION ) ...........................................................................12
4.4 T HE DISPLAY PANEL OF YOUR INDURET- COMPACT..........................................................................12
4.5 P ROGRAMMING MEMORY CELLS ..............................................................................................................13
4.6 P OSSIBLE OPERATOR ’ S INTERVENTION INTO CASTING PROCESS ..............................................................13
5 CASTING PROCESS ...................................................................................................................................14
5.1 S TART HERE … ........................................................................................................................................14
5.2 C ASTING WITHOUT METAL PREMELTING .................................................................................................18
5.3 C ASTING WITH PREMELTING ....................................................................................................................20
5.4 C ASTING WITHOUT TEMPERATURE MEASUREMENT WITHOUT PREMELTING .............................................22
5.5 C ASTING WITHOUT TEMPERATURE MEASUREMENT WITH PRECASTING ....................................................23
5.6 P OST - CASTING .........................................................................................................................................25
6 TROUBLESHOOTING................................................................................................................................25
7 MAINTENANCE..........................................................................................................................................25
8 WARRANTY.................................................................................................................................................27
9 RULES FOR DISPOSAL OF COMMERCIAL ELECTRICAL EQUIPMENT....................................28
10 TECHNICAL SPECIFICATIONS..............................................................................................................29
11 KEY................................................................................................................................................................30
11.1 S PARE P ARTS L IST ..................................................................................................................................32
12 APPENDIX....................................................................................................................................................34

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[A PPENDIX A1] M UFFLE O VERVIEW C HART ........................................................................................................34
[A PPENDIX A2] INDURET M ETAL CHART FOR TEMPERATURE ADJUSTMENT .....................................................35

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1 Accessories
1.1 Basic Accessories
•Casting Machine INDURET - COMPACT
•1 ceramic crucible (for non-precious metal)
•1 graphite crucible (for noble metal)
•1 graphite crucible holder
•1 ceramic pestle
•1 graphite pestle
•1 thermocouple
•1 hose package
•User video
1.2 Special Accessories
•Order-No. 21601 Pressure minimizer Argon
•Order-No. 23801 Melting crucibles, graphite for noble metal
•Order-No. 23801P Graphite crucible Plus for noble metal
•Order-No. 23802 Pestle graphite
•Order-No. 23803 Ceramic melting crucibles for non precious metal
•Order-No. 23804 Pestle S ceramic
•Order-No. 23805 Graphite crucible holder
•Order-No. 23806 Crucible holder
•Order-No. 23807 Re-circulation cooling unit
•Order-No. 23809 Maintenance unit
•Order-No. 23811 Starting kit, including: 21601, 23801, 23802, 23803, 23812, 23805,
23809, 23812, 23815, 23816, 23818, 23819, 23823
•Order-No. 23812 Longlife pestle
•Order-No. 23814 Thermocouple
•Order-No. 23815 Centering and insulation rings
•Order-No. 23816 Drill for crucibles
•Order-No. 23818 Alloy tray
•Order-No. 23828 Dispenser tube
•Order-No. 23819 Positioning pliers
•Order-No. 23822 PC- Interface

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•Order-No. 23826 Muffle pliers
•Order-No. 26805 Pressure compensation container
(Part numbers and contents are subject to change. Placing an order pls. ask for the corresponding part numbers)
2 General Notes
2.1 General Safety Instructions
•Operating instructions must be read and followed by all personnel who use this device
•Furthermore, personnel should follow all local safety rules.
•To avoid injury, appropriate protective clothing, noise absorption, protective eyewear and
other tools have to be used.
•If the machine is defective or working improperly it must be taken out of service. Call your
dealer immediately then.
•This device has been designated to be used only for its intended purpose. All other
applications must be prohibited for safety reasons.
•In case of danger turn off the machine and call your dealer or manufacturer for help.
•This device should not be left running while unattended.
•Turn all power sources off after having finished work.
•Repairs may be carried out only by experts. Persons doing repairs take over responsibility
for proper work and adherence to accident-prevention regulations (UVV).
•Use original spare parts only.
•Modifications may only be made after consultation with, and by permission of the
manufacturer. In case of modifications without permission all warranty and liability claims
will expire.
•The machine should be operated in a clean, air-conditioned room with a temperature of 18
to 35° C.
•Danger of fire: Respect the fire regulations. Leave enough space around.
•Don’t use mobiles near the machine since they may lead to disturbances.
•Don’t place anything on top of the machine.
•REITEL GmbH assumes no liability for damages to surfaces caused by equipment
supports/feet.
2.2 Special Instructions for this device
•Never store explosive, highly inflammable or burnable material in the working area.

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•The hot crucibles, pestles and muffles may only be deposited on a heat-resistant and fire-
proof base, like crucible support.
•Make sure to use the device only for melting metals and alloys in the crucibles meant for
this purpose.
•Don’t melt any material, generating toxic gas.
•The generator (function „melting material“) may only be switched on if the melting material
is already in the device.
•When the heating is on, don’t touch the inductor chamber with your hands or other things.
•Use pliers when inserting or taking out the muffle, mould or handling the thermoelement
because of danger of being burnt.
•Only open the casting chambers when there’s no excess pressure or under pressure.
•Be careful regarding handling gas bottles. Secure against falling down, don’t heat, handle
with care.
•The heating process incl. casting process may only last max. 3 minutes.
Alloys with a longer melting time are inadmissible.
•The rest time between a casting and starting a new heating process has to be at least 6
minutes. There may be no hot crucible in the device during this time. The muffle chamber
as well as inductor chamber have to be open for cooling reasons during this time.
•Entering the casting temperature for non-precious metals generally corresponds to
recommendation of the metal-suppliers. These recommendations are without engagement.
•Tip: several (approx. 5 castings) should be performed visually, possibly with different
temperatures, and in case of a good casting result the casting temperature should be
adopted results-oriented as a set value for a casting program.
•Regarding temperature measurement small metal quantities below 15 g are not
precise due to a lack of quantity and are difficult to cast. If false castings are
produced, often default imbedding or a wrong temperature assessment of the
metal melting is the reason.
•When processing non-precious metals and palladium-containing alloy in the
ceramics crucible, temperature measurement is only possible with the „Longlife -
pestle“.
Generally noble metal (NM) is molten in the graphite crucible, if applicable in the ceramics
crucible with the graphite seal pestle.
•When melting thin and few split noble metal pls. pay attention that they don’t
position vertically as there’s no coupling possible and the metal consequently
won’t melt. Therefore push together split metal, put old sprue onto the new
material or weld split metal together or spot-weld.

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•Pls. pay attention to the maximum percentage part of old material and crush
sufficiently! The parts have to be positioned on the crucible’s base, otherwise
there will be no or only partly metal melting.
3 Installation
•In order to minimize casting time, the INDURET-COMPACT should be installed very near to
the preheating furnace.
•Don’t install the device in a dusty room, e.g. near a sandblaster.
•The INDURET-COMPACT is a benchtop unit. Ensure a stable placement on the benchtop
and leave enough space around the machine.
•Pls. check connectivity with type plate indications.
•In case of differences of power requirements in your location, we recommend the usage of
the following devices:
Connecting Medium
Remedial action
Order
-
No.
Compressed air Maintenance unit 23809
Compressed air Pressure equalization tank 26806
Cooling water Refrigeration by circulation 23807
3.1 Protective gas connection
Left side of the machine (25)
Connecting
medium
Input port device
max. distance
Laboratory installation
Protective gas
Argon 4.6
Quick coupling NG 7,
hose with 8 mm flow
opening
2m bottle:
pressure minimizer 5-6
bar (not l/min)
NG: quick-action coupling, possibly adjustment to your plug connection
(pls. ask your plumber or specialised dealer)
The gas cylinder is connected via a pressure minimizer.
Warning: This machine must not be operated by persons who wear a pacemaker.

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Caution: handling gas bottles. Secure against tilting, don’t throw, don’t heat and pls.
control metal press pressure at the device’s gauge (3 bar at delivery).
Alternatively air can be used instead of argon. Pls. follow the manufacturer’s instructions
regarding connection of the pressure unit to the bottle.

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3.2 Compressed air connection
Left side of the device (26)
Connecting
medium
Coupling device
Max. distance
Installation in laboratory
air 10 mm quick connect
coupling
10 m to the
compressor
Quick connect coupling
NG 7, 5-6 bar
NG: quick connect coupling, possibly adjustment to your coupling system
(Pls. turn to plumber or specialized dealer)
The casting result is mainly effected by speed of building up air pressure.
Reference speed range fom –0,8 bar to 3.0 bar in 1-2 sec.
Therefore:
a) Ensure a short distance to the compressor
b) Flow opening of all connections and hoses: minimum 8 mm
c) Minimum air pressure: 6 bar (admissible pressure drop of the device: max. 0,5 bar)
d) Minimum tank volume 80 l or free compressor performance / permanent
compressed air supply 50 l/min.
e) Don’t bend the supply hoses
f) Keep compressed air supply free from water, dust and oil (normally a water
separator is installed, that has to be looked after regularly (see chapter “Maintenance”)
3.3 Water connection
Left side of the device (28)
Connecting
medium
Anschlussart Gerät
max. distance
Installation in laboratory
Water inlet
3
/
4
″- screwing with a
clamping nut
3m
3
/
4
″- screwing with a
clamping nut
Water outlet Flow opening
6-8 mm, fasten with
clamp
2m free outflow
Connect water inlet with provided hose to the feeder (31).
Water inlet pressure has to be at least 3 bar. Lead water outflow hose (32) in an outlet basin
or via the domestic drain.

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Alternatively the water recirculation cooling can be installed, available from Reitel.
3.4 Connection for power supply
Left side of the device (24)
Connection for
power supply
Power requirements
device
max. distance
Laboratory installation
Power connection Pre-installed 2,5 m 230V / 16A
50 / 60 Hz socket
Plug the IEC power connector in the device’s plug and connect to the supply network
230V 50 / 60 Hz. Check voltage.
Protection: blowout fuse 16 A slow action line relay K16A or C16A,
minimum tension 215V / max. 240V.
Attention: When using the water cooling unit pls. control the water inlet temperature! Max.
30
0
C, temperature of draining water max. 35
0
C
Using the water cooling unit, outflowing water has to be redirected to the storing basin.The
hose end has to be kept under water. Pls. pay attention to choosing the right taps.
WARNING: Do
not connect any further devices to the 16A fuse.