VOP LC-CAST 60A User manual

LC-CAST 60A en v2 1
Casting Machine
LC-CAST 60A
USER MANUAL

LC-CAST 60A en v2 2
CONTENT
1. INTRODUCTION
2. SAFETY INSTRUCTIONS
3. DESCRIPTION OF THE UNIT
4. INSTALLATION AND INITIAL START-UP
5. PRACTICAL USE
PRESETTING
WAY OF USE
6. DESCRIPTION OF ERRORS
7. IMPORTANT PRACTICAL INFORMATION
8. TECHNICAL DATA
9. MAINTENANCE
10. SCOPE OF DELIVERY
WARRANTY
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1. INTRODUCTION
Thank you for having purchased the Casting Machine
LC-CAST 60A which, we are sure will all meet all your
needs and will satisfy your high demands.
This machine has been designed according to the
requirements of latest industrial standards and we
guarantee that you will use it many years as your closest
assistant.
However, inappropriate use may damage the
equipment and be harmful to personnel. Please observe
the relevant safety instructions and read the Operating
Instructions carefully.
We wish you pleasant and fruitful work with the LC-
CAST 60A.
SYMBOLS:
This symbol indicates that there is high
dangerous tension under the bonnet which it is
put on.
This symbol indicates that the machine
complies with the requirements of the Directives
for Low Tension and Electromagnetic
Compatibility as well as for the Standards
harmonized with them.

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2. SAFETY INSTRUCTIONS
ATTENTION!
The following instructions must be observed in order
to avoid personnel injury or equipment failure.
CAUTION!
BEFORE INSTALLING AND STARTING READ THIS
INSTRUCTION!
ONLY PERSONNEL WHO ARE FULLY
CONVERSANT WITH THIS MANUAL SHOULD
WORK WITH THE MACHINE.
The centrifuge and the HF generator can be
switched on only when the upper lid is closed.
When during melting the upper lid is open, the
high-frequency heating is interrupted.
The upper lid is locked and it cannot be open in
ROTATION mode.
The apparatus cannot be set to melting unless
there is water in the cooling system.
The inductor must be lifted to upper position for
melting only when the crucible is centred on it.
The centrifuging process can start only when the
inductor is in lower position.
The rod for lifting of the inductor can be raised
only if the power switch of the front panel is
pressed.
When the engine is started, the rod is locked in
lower position.
the device is not permitted to be run by an
operator, who is not entirely introduced to these
safety instructions;
before switching on the plug into the network
socket, you should check whether the electricity
grid voltage meets the prescribed working
voltage. In case of incompliance, seek the
assistance of a specialist;
it is not permitted in any case to modify the
device;
the notices and stickers must be kept in good
condition so that they are easily readable; they
should not be removed!
the machine must not function in case of being
damaged and in position to injure the staff or a
third person;
keep the power cable out of heat, oil and coarse
objects; do not catch the device by the cable
when you move it.
switch off the furnace and pull out the plug of
the feeder cable from the contact before each
cleaning or upkeep.
spare parts which are not specified by the
manufacturer cannot be used!
If the machine is used by such means not indicated by the
manufacturer, the provided protection can get worse!

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3. DESCRIPTION OF THE UNIT
The machine for centrifugal casting LC-CAST 60A is
designed for induction high-frequency casting of Co-Cr,
Ni-Cr-Mo and precious alloys used in dentistry.
LC-CAST60A is a device with highly-intelligent
construction which consists of three autonomous
modules controlled by a common control unit:
1. HF melting module with transistor control
which contains:
HF generator;
power supply;
water cooling system;
2. Centrifugal casting mechanism;
3. Control cabinet with a system of security
interlocks.
1 Handle of lifting mechanism;
2 Carrying handle;
3 Front panel;
4 Handle of upper lid;
5 Watching window;
6 Heel;
7 Knob for adjusting the starting momentum of
the centrifuge;
8 Power switch;
9 Knob for adjusting of melting power;
10 STOP button;
11 Indication sector;
12 Bed of the muffle;
13 Stand of the crucible;
14 Regulating handle;
15 Stop limiter;
16 Carriage;
17 Counterweight;
18 Cross-shaped handle.
1
2
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18
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15
16

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4. INSTALLATION AND INITIAL START-UP
Place the machine on a solid foundation.
By means of wrenches №14 and №19 (for
adjustment of the feet) and a level adjust the
machine so that the centrifugal arm is
horizontal.
This adjustment will reduce the vibrations when
casting.
Make sure that the mains voltage is ~230VAC.
The plug which the device is equipped with is
mono-phase and strengthened.
The respective contact is supplied together with
the device. Fit it on installation with a conductor
4mm2in thickness as it is recommended to be
on a separate circle with fuse 35А.
The contact must be earthed reliably.
Make sure that there is water in the container (9
liters).
Connect the plug into the socket.

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5. PRACTICAL USE
PRESETTING
NOTE:
CAUTION!
To ensure the normal operation of the apparatus before
each casting procedure balance of the arm must be made
depending on the certain weight of the used muffle and
the quantity of the metal needed for the casting. For this
purpose you must keep the following steps:
Loosen the cross-shaped handle (18) until you feel
that the arm can move freely;
Put the muffle into the bed (12);
Put the crucible into the stand (13).
When melting precious metals the usage of graphite
insert is obligatory.
Put the necessary quantity of metal into the crucible;
By means of the regulating handle (14) and the stop
limiter (15) adjust the orifice of the crucible to match
the pouring cone of the muffle but without touching
it;
Slide the carriage (16) to the position most close to
the muffle;
Move the counterweight (17) by rotating it until
balance of the mechanism is achieved;
The non-balance resulting from the shift of the
molten metal away of the crucible to the muffle
during the process of casting is compensated by
rotation of the counterweight in direction opposite to
the muffle.
This adjustment described is essential for avoiding of the
vibrations of the apparatus when melting.

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WAY OF USE
ASJUSTMENT OF THE MELTING MOSE
MELTING
After the preliminary settings described in p.8.1, the
working continues in the following sequence:
Switch on the power supply of the apparatus. In this
situation if the upper lid is closed the indicator READY
FOR WORK (21) will not beam. It will beam as soon as the
lid is open.
Open the upper lid if it is closed. Moreover, if the
inductor is in lower position indicator (26) will beam.
If the inductor is in lower position, place the arm of the
apparatus with the ceramic crucible above the inductor.
With the help of the handle (1) lift the inductor to the
end upper position, after that fix it by sight rotation to
the left. In the same time the crucible must fit into the
lifting inductor. You can accomplish this by rotating of the
arm and sliding of the carriage (16).
As a result from this action indicator (25) will beam and
indicator (26) will be off.
The power of melting is set with the help of
potentiometer РOWER (9). For the normal operation and
full power it must be in end right position (at digit 10).
If you want for any purpose to melt at lower power,
rotate the knob to the left. When the potentiometer
РOWER is in position 1, the power of the generator is
about 30% from the maximum rate.
Close the upper lid. The apparatus is switched to
MELTING mode as in the same time the red indicator HF
(28) on the front panel showing activation of the high-
frequency generator as well as the green indicator (29)
showing the presence of pressure in the cooling system
go on.
Supposing that during melting you open the upper lid,
the high-frequency generator will turn off immediately
and the apparatus will be switched to mode READY FOR
WORK. If you leave the upper lid closed, the apparatus
will remain in MELTING mode not more than three
minutes, afterwards it stops as it alarms by intermittent
sound-signal and blinking of the red LED (20). This is
made with the aim to protect the machine in case that it
is left in MELTING mode for a long time. The apparatus
will be switched to mode READY FOR WORK again by
opening of the upper lid.
Observe the melting of the metal through the small
window (5) on the upper lid.
Wait until the complete melting of the metal, after that
let down the handle (1), then the apparatus is switched
to Mode CASTING automatically. The arm will start
turning as it will rotate for about 30 sec and then will
stop. Also, the rotation can stop earlier by pressing of
button STOP.
29
20
21
22
19
23
24 25
26
30
28
27

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ATTENTION!
An electromagnet lock on the upper lid is inserted in the
machine. It guarantees that the lid will not open while
the arm of the centrifugal mechanism is rotating.
The initial moment of the arm rotation is adjusted using
the potentiometer TORQUE (7). As much this
potentiometer is turned to the right so bigger is the initial
rotating torque.
Before perform a casting you could warm up the metal in
the apparatus until it become red. This will reduce the
melting time. Do not heat the metal in muffle furnace.

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6. DESCRIPTION OF ERRORS
NUMBER OF BLINKINGS
1
2
3
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5
6
7
8
9
13
When for any reason the normal operation of the
apparatus is interrupted, this is indicated on the front
panel by blinking of red LED (20) and the relevant sound
warning.
Moreover, the blinking of LED (20) provides information for
the problem occurred.
Please find below the description of the numbers of
blinking and the relevant reasons for the interruption of
the normal work.
FACTOR
Current overloading of the generator;
No voltage of the generator;
Time for melting more than 3 minutes;
No pressure in the cooling system;
Temperature overloading;
Communication error;
Problem with the thermo sensor DS1822;
UG is high;
UG is low;
Shortcut in the generator
In order to pass on to mode READY FOR WORK press
button STOP (10) or stop the power supply and start it
again.