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Zetasinter System

Furnace Description

The

Zetasinter Tubular Furnace

is a tubular furnace using MoSi2 heating elements and a high purity alumina

tube, working temperatures are between 800

℃

and 1550

℃

. Zetamix printed parts must be placed inside the

tube sealed with flanges. Depending on the material, they can be sintered in an ambient or inert
atmosphere

Technical

Specifications

Heating Power

3.5 kW

Voltage / Frequency / Current

220V / 50Hz / 32A

Maximum temp.

1600°C

Working Temp.

1550°C

Suggested heating rate

≤

3°C/min

Temperature controller accuracy

±1°C

Thermocouple

B type

Heating elements

6 x U type MoSi2

Size

860x605x1120mm

–

112 kg

Chamber size

Ø90x100mm

Содержание Zetasinter

Страница 1: ...ny misuse and damage please read the operations manual carefully before using NANOE SAS C O N T A C T N A N O E C O M 3 3 9 8 1 9 8 3 3 6 4 6 R U E D E S F R E N E S 9 1 1 6 0 B A L L A I N V I L L I E R S F R A N C E W W W N A N O E C O M High Temperature tube furnace Operations Manual ...

Страница 2: ...mbling c Operation d Maintenance 4 Assembling 7 5 Temperature controller 9 6 Alumina tube and refractory blocks 14 7 Vacuum pump flowmeter 19 8 Bubbler 21 9 MoSi2 Heating elements 22 10 Troubleshooting 23 11 Electrical schematic diagram 25 12 Quick start procedure 26 13 EU Declaration of conformity No 2018 11 a 27 ...

Страница 3: ...t be placed inside the tube sealed with flanges Depending on the material they can be sintered in an ambient or inert atmosphere 2 Technical Specifications Heating Power 3 5 kW Voltage Frequency Current 220V 50Hz 32A Maximum temp 1600 C Working Temp 1550 C Suggested heating rate 3 C min Temperature controller accuracy 1 C Thermocouple B type Heating elements 6 x U type MoSi2 Size 860x605x1120mm 11...

Страница 4: ...t be done according to this operation manual b Assembling Assembling must be done according to this operation manual Only the vacuum pump can be connected to the socket on the side of the furnace body Danger due to electrical Current During installation and maintenance work the electric supply to the furnace must be switched off Work on electrical equipments may only be performed by qualified pers...

Страница 5: ...e and wait until the furnace temperature drops to room temperature 100 C before removing them Do not touch the inner or outer surface of the furnace during or immediately after use Do not place any objects on the furnace body Vacuum pump Check the oil level before use Gas supply Working at a positive relative pressure is not recommended for the alumina tube The relative pressure must not exceed 0 ...

Страница 6: ...the risk of asphyxiation The working area must be ventilated using an appropriate ventilation system The use of an oxygen monitor is recommended Danger due to electrical current During installation and maintenance work the electric supply to the furnace must be switched off Work on the electrical equipment may only be performed by qualified personnel ...

Страница 7: ... cf Alumina tube chapter Close the circuit breaker turn on the power the green light comes on and the cooling fan starts to work Turn the lock button clockwise the temperature control unit is now switched on Press the Turn On button green light is now on Danger due to electrical current During installation and maintenance work the electric supply to the furnace must be switched off Work on the ele...

Страница 8: ...rature controller chapter C01 50 t01 85 C02 300 t02 120 C03 300 t03 65 C04 100 t04 121 For the first high temperature heating above 400 C heating element must be passivated for 2 hours at 1200 C cf heating element chapter Using the temperature controller program and run the passivation cycle C01 50 t01 385 C02 1200 t02 120 C03 1200 t03 365 C04 100 t04 121 Install the vacuum pump and the flowmeter ...

Страница 9: ...rature 50 C at room temperature SV StoP is alternately displayed on the lower window Process value Thermo couple temperature C P V Setting value temperature C Program state S V Setting key confirm KEY Data shift key and program setup entry Data reduction key and program RUN HOLD Data add key and program STOP Function indicator PRG controller in running state OP1 power output OP2 power output level...

Страница 10: ...C and t XX time in min Press and to modify the value Press to move to the next parameter The program parameters are displayed in the following order setpoint1 time1 setpoint2 time2 Press and hold to return to the previous setting The program step can be changed at any time even if the program is running Set t 121 to indicate the end of the program automatic switch off ...

Страница 11: ...11 Zetasinter System Press and simultaneously to exit the settings If no key is pressed within 25 seconds it also exits to stop state Example ...

Страница 12: ...12 Zetasinter System Specific settings Time Setting Heating programs saving ...

Страница 13: ...13 Zetasinter System Run Hold states Run state In Stop state press and hold until the SV window displays the run symbol The controller runs the defined program Hold state ...

Страница 14: ...ng again Step number and timer In Run or Hold states press to display the current step number and timer PV current step time setting and SV current step elapsed time Return to Stop state In Run or Hold states press and hold until the SV window displays the StoP symbol The controller will stop free cooling the timer will be reset and the step number will be set to 1 6 Alumina tube and refractory bl...

Страница 15: ...ength of tube at both ends of the furnace Install the tube holders Wrap the threads with PTFE tape and connect the pressure gauge and intake valves to the flanges The installation of the sealing flanges is shown in the figure below Right Inlet flange OD 6mm connection to the gas supply Left Outlet flange OD 10mm connection to the vacuum pump or to the bubbler ...

Страница 16: ...16 Zetasinter System Install the right flange inlet flange 1 2 3 4 5 Install the left flange outlet flange ...

Страница 17: ...17 Zetasinter System 1 2 3 4 5 6 7 Adjust the position of the tube holders under the flanges they must be in contact with the flanges Use refractory blocks and alumina plate ...

Страница 18: ... is recommended to use marks on the crucible hook at 36 45 and 55 cm If the refractory blocks are not positioned correctly this can lead to tube failure Maintenance After every heat treatment Clean the binder residues in the outlet flange with a degreaser Use a bottle brush to clean the outlet valve Please note that only refractory blocks are required to debind sinter Zetamix ceramics No need to p...

Страница 19: ...reatment If the refractory blocks and the alumina plate are black due to binder residue Program and run an cleaning cycle under ambient atmosphere inlet and outlet valves open C01 50 t01 485 C02 1500 t02 120 C03 1500 t03 467 C04 100 t04 121 ...

Страница 20: ...nace body Connect the vacuum pump to the outlet flange using the Ø10mm flexible air hose 1 2 Flowmeter Install the flowmeter on its holder Connect its outlet upwards to the inlet flange with the Ø6mm flexible air hose Connect its inlet downwards to the 0 2 bar 0 02MPa gas supply 1 8 NPT F 1 2 3 Use Flushing Close the valves and the flowmeter Turn on the pump Open the outlet valve Wait till the tub...

Страница 21: ...le to keep a static vacuum under 0 9 bar 0 09 MPa during more than 5 min Inert gas filling Open the inlet valve and open slowly the flowmeter Wait till the tube pressure is at 0 bar MPa Close the flanges Do the vacuum as explained above 5 times Maintenance After five heat treatments Check the oil level in the pump ...

Страница 22: ...bbler with 70 mL of water level at 110 mm height from the bottom Slowly open the outlet valve let the overpressure released to 0 bar and set the flowmeter to 0 5 L min or according to the filament guideline Set the heat treatment during it Adjust the water level to 110 mm every 48 hours to compensate the evaporation Inlet and outlet flange must be kept opened Stop the furnace hold or stop states i...

Страница 23: ...e power must be turned off before maintenance or inspection Unscrew the top cover and remove it Unscrew of the clip of the connection bridge for each rods of the U type heating element and remove it Take off the connection bridges 1 2 3 Unscrew the clip from the ceramic jaws that hold the heating element Remove the ceramic jaws and the refractory block Remove the heating element which needs to be ...

Страница 24: ...off and the red open circuit light is on The heater power circuit is not connected to the power supply because its 32A circuit breaker is open Identify if possible the cause of the failure Check and close the 32A circuit breaker inside the furnace behind the control panel The green power light is off and the red open circuit light is off Same as the previous failure and the red light is broken Sam...

Страница 25: ...kage Check the flange seals Impossible to maintain a constant inlet gas flow of 0 3 L min 0 2 Bar 0 02 MPa gas supply is not stable Use an appropriate gas supply double stage 0 1 bar 0 01 MPa precision cf Facility Guide The bubbler doesn t bubble while the flowmeter and valves inlet and outlet are open Tube pressure is at 0 bar MPa No gas supply The gas supply circuit is closed Turn off the furnac...

Страница 26: ...26 Zetasinter System 11 Electrical schematic diagram 220V Electrical schematic diagram ...

Страница 27: ...build the desired heating curve The number displayed by the letter C or T corresponds to the number of the segment 7 Note that a plateau can be added by choosing the same temperature as the temperature of the previous segment If so the time setting of that segment corresponds to the time of the plateau 8 Finally when all segments are built you must add a final step by choosing 121 as the temperatu...

Страница 28: ...he declaration described above is in conformity with the relevant Union harmonisation legislation EU directive on low voltage electrical equipments 2014 35 UE 6 Applicable standards for this declaration are EN 60519 1 2015 Safety in installations for electroheating and electromagnetic processing Part 1 General requirements EN 60519 2 2015 Safety in electroheat installations Part 2 Particular requi...

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