ROMANOFF Yasui RBF37+ User manual

OPERATIONS MANUAL
RBF37+
ROTATING BURNOUT FURNACE

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CONTENTS
1. SAFETY INFORMATION ......................................................................................................5
PREPARATION ANDINSTALLATION ..................................................................................8
2. NOMENCLATURE ................................................................................................................ 8
2-1. FRONT VIEW ................................................................................................................. 8
2-2. DIMENSIONS ................................................................................................................. 9
2-3. OPERATION PANEL .....................................................................................................10
3. INSTALLING ...................................................................................................................... 11
3-1. UNPACKING ................................................................................................................ 11
3-2. MAIN UNIT ................................................................................................................... 11
3-3. AFTERBURNER ...........................................................................................................12
3-4. CONNECTING POWER SUPPLY .................................................................................19
3-5. EXHAUST SYSTEM ......................................................................................................20
3-6. DRAIN ORIFICE ............................................................................................................21
3-7. SETTING AUTO DOOR ................................................................................................22
3-7-1. RELEASING DOOR LOCK .................................................................................... 22
3-7-2. CONNECTING FOOT PEDAL ............................................................................... 22
3-7-3. CHECKING REGULATOR PRESSURE ................................................................ 23
3-8. USING AUTO DOOR ....................................................................................................24
4. MAINTENANCE.................................................................................................................. 26
4-1. CLEANING FILTER FOR COOLING FAN .....................................................................26
4-2. CLEANING OF FURNACE AND ROTATING UNIT .......................................................26
4-3. CHECKING CRACK OF ADIABATIC MATERIAL ..........................................................27
4-4. CHECKING DEFORMATION OF TURNTABLE ............................................................27
4-5. REPLACING THERMOCOUPLE ...................................................................................28
5. SPECIFICATIONS............................................................................................................... 29
6. PASSWORD .......................................................................................................................30
6-1. KIND OF PASSWORD ..................................................................................................30
6-2. ISSUE OF PASSWORD ................................................................................................31

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OPERATION AND CONFIGURATION.................................................................................32
7. OPERATING......................................................................................................................32
7-1. AUTOMATIC OPERATION ......................................................................................... 32
7-1-1. POWER ON AT BREAKER SWITCH ....................................................................32
7-1-2. CHOOSE RECIPE .................................................................................................32
7-1-3. PUT FLASKS INSIDE ............................................................................................33
7-1-4. START OPERATION .............................................................................................33
7-1-5. BURN OUT ...........................................................................................................34
7-1-6. TAKE FLASK OUT FOR CASTING .......................................................................34
7-1-7. STOP OPERATION ...............................................................................................35
7-1-8. POWER OFF ........................................................................................................35
7-2. HOW TO PROGRAM RECIPE MEMORIES ................................................................ 36
7-2-1. EDIT TEMPERATURE...........................................................................................36
7-2-2. EDIT OTHER FACTORS ......................................................................................38
7-2-3. ADD and DELETE STEP(s) ..................................................................................38
7-2-4. ROT, AB and COMMENT ......................................................................................39
7-3. MANUAL OPERATION ............................................................................................... 40
7-3-1. POWER ON AT BREAKER SWITCH ....................................................................40
7-3-2. SWITCH MODE .....................................................................................................40
7-3-3. START HEATING ..................................................................................................40
7-3-4. TAKE FLASK OUT FOR CASTING .......................................................................41
7-3-5. STOP OPERATION ...............................................................................................41
7-3-6. POWER OFF ........................................................................................................42
7-4. EMERGENCY STOP BUTTON ................................................................................... 42
8. DESCRIPTION of EACH WINDOW ................................................................................... 43
8-1. FLASK INFO window ...................................................................................................43
8-1-1. Tap FLASK INFO tab.............................................................................................43
8-1-2. Details....................................................................................................................43
8-1-3. MANUAL / AUTOMATIC .......................................................................................44
8-1-4. Change memory number ......................................................................................44
8-1-5. SET POSITION .....................................................................................................44
8-1-6. PRESENT POSITION ...........................................................................................45
8-1-7. PRESENT TEMP ..................................................................................................45
8-1-8. TIME AFTER TARGET ..........................................................................................45
8-2. GRAPH window ...........................................................................................................46
8-2-1. Tap GRAPH / LIST tab to open.............................................................. 46
8-2-2. Details....................................................................................................................46
8-2-3. PP window ............................................................................................................46

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8-2-4. SET POSITION.................................................................................................... 46
8-2-5. PILOT LAMP ....................................................................................................... 46
8-2-6. PRESENT TEMPERATURE ................................................................................ 46
8-2-7.MEMORY No .....................................................................47
8-2-8. FINISH TIME ........................................................................................................47
8-2-9. TIME AFTER TARGET ........................................................................................ 47
8-2-10. LIST .................................................................................................................. 47
8-3. LIST window (tap LIST button to jump →) .................................................................. 48
8-3-1. MEMORY Number edit button ..............................................................................48
8-3-2. COMMENT button ...............................................................................................48
8-3-3. STEP ...................................................................................................................48
8-3-4. ELV TIME ............................................................................................................49
8-3-5. TEMP ...................................................................................................................49
8-3-6. KEEP TIME...........................................................................................................49
8-3-7. ROT .....................................................................................................................49
8-3-8. AB........................................................................................................................ 49
8-4. CONFIG ..................................................................................................................... 50
8-5. LOG OFF ................................................................................................................... 50
9.CONFIGMENU ..................................................................................................................52
9-1. MACHINE ................................................................................................................... 54
9-2. COPY ......................................................................................................................... 54
9-3. SECURITY ................................................................................................................. 56
9-4. DATE & TIME .............................................................................................................56
9-5. DISPLAY ....................................................................................................................57
9-6. PAYMENT PASSWORD ............................................................................................ 58
9-6-1. WHAT IS MONTHLY PAYMENT? ........................................................................59
9-7. MAINTENANCE ......................................................................................................... 59
10.WHEN IRREGULARITYHAPPENED............................................................................... 61
10-1. ERROR MESSAGES................................................................................................61
10-2. ERROR CODE LIST ................................................................................................62
10-3. BLACKOUT .............................................................................................................67
10-4. OVER HEAT PROTECTION DEVICE ....................................................................... 69
10-4-1. ON AND OFF OF OVERHEAT PROTECTION ...................................................69
10-4-2. OPERATING OVERHEAT PROTECTION .........................................................69
10-4-3. CHANGING SET VALUE OF OVERHEAT PROTECTION DEVICE ....................70

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1. SAFETY INFORMATION
WARNING
1. Since this machine produces very high temperature (more than 700 degrees Celsius), always
pay attention not to suffer burns.
Do not allow unskilled or untrained person to operate this machine.
2. This machine is electric furnace designed for lost-wax casting. However, depending upon
material, it may be possible to use the machine for burning plastics (such as material for Rapid
Prototyping). If you need to use plastics, examine properties of the plastics beforehand
thoroughly and carefully and check for safety because various plastic materials are distributed on
the market.
3. Do not use or stock any inflammable gas, inflammable volatile liquid, or organic solvent near
the machine or in the room where the machine is installed.
4. When incomplete combustion gas of wax is generated, do not open the door. If you open the
door at this time, inside of the furnace may be combusted and flame may spread toward front
through the gap between the door and the furnace body.
5. Before connecting tubes for auto door, be sure to set the insert pin to the handle of door to
release the door lock. Removal of the insert pin after the auto door has been installed may cause
unexpected and very rapid opening of the door, which may cause injury.
6. Never stand in front of the door, when air is initially supplied to the auto door or when air is
once shut off and then supplied again to the auto door to replace air supply source, as the door
may unexpectedly and rapidly open or close, which may cause injury.
7. During or just after burnout, surrounding
parts of the furnace opening especially
the metal plates for guard of the adiabatic
material are heated to very high temperature,
So take utmost care not to burn your
hands etc.

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8. Before opening the door, ensure for safety that there is nothing in the door's way.
9. Do not leave the door of the furnace open when the machine is not used.
10. Always keep clean inside of the furnace. Investment residue or dusts on the turntable or the
wax drain orifice etc. may cause clogging and prevent wax from draining out of the furnace. As a
result, a large amount of incomplete combustion gas is discharged.
11. Do not pile up flasks. If flasks fall down, the inner wall of the furnace may be damaged.
Further, if they come into contact with the heater wires, an accident such as short-circuit may be
caused.
CAUTION
1. Periodically, check and clean the rotation driving parts. Remove wax on the bearing system.
2. Do not try to cool inside of the furnace forcibly and very rapidly using a fan. Particularly,
if forced cooling is done when the machine is heated to high temperature, the door frame
material may be cracked or deformed.
3. When burning out a large number of flasks in one batch, take ample time for each step of
burnout cycle.
4. Always use the wax collection container. A deep container is recommended because drained
wax will not splash around.
5. If you operate burnout of stone-set flasks, be sure to check that the overheat protection key
switch is turned to on, check the set temperature limit value of overheat protection device
beforehand, and change the set value if necessary to proper value.

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- The manufacturer shall in no event be liable for any damage resulting from improper use,
negligence to follow the warnings and cautions in the instructions manual or the labels on
the machine, unskillfulness, use of non-original optional / consumable accessories / spare
parts, non-authorized modification.
- The manufacturer shall in no event be liable for any consequential or indirect damages
including, but not limited to, loss of production or loss of profit or damages due to machine
downtime.
- Damages to the instrument and / or human bodies resulting from contacting with high
temperature parts, and their consequential or indirect damages are not compensated by
the manufacturer.
- Damages resulting from delay of reaction at emergency and mistaken operation are not
compensated by the manufacturer.
- Damages from electrical noise, over voltage, or wiring error are not compensated by the
manufacturer.
- Casting results (including burnout for normal precious metal casting, for stone-in-wax
casting and etc.) by this manual are not compensated by the manufacturer.
- No part of this document may be copied or in any way reproduced without the expressed
written consent of the manufacturer.

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PREPARATION AND INSTALLATION
2. NOMENCLATURE
2-1. FRONT VIEW
Adiabatic and dew protection
board f or afterburner
Af terburner
Cover for drive
unit box
Door
Weep
hole
Dew protection
pan
for main body
Eave
Cover of power
control box
Control panel
Overheat protection
key switch
Overheat protection
device
EMERGENCY
STOP button
Power lamp
Breaker switch
Filter cover for
cooling fan
Handle
Level adjuster
Foot pedal for
auto door

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2-2. DIMENTIONS
STARTSTOP
860 265
1125
1073
747
1739
2176
129308

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2-3. OPERATION PANEL
MAIN DISPLAY
START BUTTON
STOP BUTTON
BREAKER
SWITCH
TURN TABLE
ROTATION button
OVER HEAT
PROTECTION
KEY SWITCH
USB SLOT
POWER LAMP
OVER HEAT
PROTECTION
DEVICE
EMERGENCY
STOP BUTTON

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3. INSTALLING
3-1. UNPACKING
1) Remove the hex-socket head lock bolt of the
handle with a hex wrench. Keep this bolt to transport the
machine when necessary in the future.
2) Open the door, and remove cushioning material
between the turntable and the heater. (Do not give
unnecessary strong force at this time, otherwise
the heater surface may be damaged.)
3-2. MAIN UNIT
IMPORTANT
Great attention should be given to ambient temperature at installation of the machine. In case
two or more machines are arranged side by side, allow enough spacing.
Do not use the machine in a closed room.
Provide adequate ventilation of air for the machine.
1) When doorways are not wide enough, the power control box can be separated from the
furnace body temporarily. Contact the distributor at your place.
2) Mount the machine on a sturdy place
endurable to weight. (Weight of the machine
may be more than 600 Kg when flasks are
contained.)
3) After placement of machine, turn the level
adjusters so that the machine will be stably
supported by the level adjusters.
4) Sufficient clear space should be left
around the machine so that daily operation
and maintenance will not be obstructed.
Especially, if another furnace is placed next,
there should be at least 300 mm clearance
between the machines.

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3-3. AFTERBURNER
CAUTION
[1] Wiring should be made by a qualified technician under correct method.
[2] Be sure to turn power off before installation.
[3] Take care not to drop a screw or the like in the main body of the furnace. If you happen to
drop it, be sure to pick it up, otherwise it might cause short-circuit.
[4] Do not move the position of the thermocouple.
1) Place the sheath heating element deliberately into the hole of afterburner unit.
2) Place the afterburner bobbin deliberately.
CAUTION
Take care not to drop the sheath heating element and bobbin, because the parts of the machine
may be damaged.

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3) Place the honeycomb cover in position passing the cables through its holes as the below
figures.
4) Connect the cable for sheath heating element to the terminal block for afterburner.

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5) Repeat the above 1) to 4) for other two afterburner sheath heating elements.
6) Insert the tip of thermocouple tube into the hole for thermocouple as the below figures.
7) Fix 2 patrs with included
saddles like this.
IMPORTANT

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8) Place the afterburner to the top of the RBF37 main body. Connect the cables for the
afterburner heater from the built-in power control box of RBF37 main body as the figures
below and in the next page.

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9) Fix the afterburner body with the fixation plates and bolts. On the right side, fix the cables for
afterburner with the retainer to the fixation plate for afterburner body.

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10) Attach the terminal block cover of afterburner body .
11) Unscrew the four eyebolts. Screw in the long foot bolts at the rear screw thread holes. Screw
in the short foot bolts at the front screw thread holes.
IMPORTANT
By screwing the long foot bolts into the rear threaded holes, the dew protection pan for main
body can be inclined (its front will be lower than its rear). Generated water drops will naturally
flow toward the weep hole. So be sure to use the longer bolt at the rear and the shorter bolts at
the front.

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12) Place the dew protection pan for main body as figure (the weep hole should be positioned at
the front left corner), so that water droplets generated during burnout will not enter inside the
RBF37 main body.
13) Be sure to assemble the adiabatic and dew protection board for afterburner as the figure.

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3-4. CONNECTING POWER SUPPLY
Connect the machine to the specified power source.
Accepts input of 3-phase, AC 380 V only.
WARNING
[1] Connect to specied power supply only.
[2] Be sure to connect the grounding wire to avoid electrical shock hazards.
[3] This machine is not equipped with a ground-fault circuit interrupter.
Connect to the round-fault circuit interrupter on the power switch board in your factory. If the
grounding wire is not earthed correctly, the ground-fault circuit interrupter may not work normally.
Connect the grounding wire correctly.
[4] Wiring should be made by a qualified electrician.
1) Loosen the fixation screws of the cover for power control box and remove the cover.
2) Connect the power supply cord to the inside terminal block. Connect in correct phase
sequence. Connect the grounding wire for protection from electric hazard.
3) Close the cover.

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3-5. EXHAUST SYSTEM
Install equipment for exhaustion such as exhaust duct.
WARNING
[1] Building of exhaust system should be done by a qualified technician.
[2] Use noncombustible material.
[3] Install high power fan suitable for exhaust of fumes.
[4] Dew drops should not fall directly onto the machine body.
[5] Make the exhaust system earthquake-resistant.
[6] Check the exit of the exhaust device periodically to see that it is not obstructed by birds' nest
or by other causes and that the exhaust fan works normally.