[ad_1]
- Know your application
-
Single Zone vs Multi-Zone: Multi-zone furnaces have multiple independently-controlled, constant-temperature zones, which allows controlled temperature gradient or a longer heating zone
-
Horizontal (standard) vs Vertical: Vertical tube furnace provides smaller footprint and can be used for fast heating / quenching process
-
RTP (Rapid Thermal Processing): Slideable sample holder or furnace for maximum heating / cooling rate
-
Rotary Tube Furnace: Tube is rotated during heating for better powder processing / coating uniformity
-
Gas Processing Capability: Special models for Hydrogen gas processing and high-temperature corrosion research are available
-
Multi-Function: Tube furnace based complete systems, such as CVD, PECVD, HPCVD, ALD, Graphene & 2D material growth system, are available
2. Certifications for tube furnace
-
All NBD’s furnaces are assembled and quality controlled in China and CE certified
3. Choose working temperature
-
Please note there are maximum temperature (can be maintained < 1 hr) and continuous working temperature (safe, continuous use temperature)
-
The maximum working temperature depends on the heating element used, and can be divided into three categories:
a. Working temp: ≤1150 °C Max temp:1200℃ alloy heating element K type thermocouple
b. Working temp: ≤ 1450 °C Max temp:1500℃ SiC heating element S type thermocouple
c. Working temp: ≤ 1650 °C Max temp:1700℃ MoSi2 heatin element B type thermocouple
-
Select the processing tube corresponding to the furnace max temperature:
a. Quartz tube: ≤ 1200 °C in 1 atm; ≤ 1000 °C under vacuum
b. Alumina tube: ≤ 1800 °C in 1 atm; ≤ 1500 °C under vacuum
-
Select the crucible corresponding to the furnace max temperature:
a. Quartz crucible: ≤ 1200 °C
b. Alumina crucible: ≤ 1700 °C
c. Zirconia crucible: ≤ 2100 °C
4. Choose heating zone length based on your sample
-
Please note there are total heating zone length (length covered by heating element) and constant temperature zone length (center zone with less than +/- 1 °C variation). Constant temperature zone is always shorter than the total heating zone. Please choose a tube furnace with a constant temperature zone longer than your sample for uniform heating
5. Choose the tube size (inner diameter) and crucible size based on your sample
-
Please choose the corresponding tube size and crucible size based on the sample volume
6. Choose input voltage
-
Choose between 110 VAC and 220 VAC depending on the country or region
7. Choose a vacuum pump
-
Select mechanical pump for vacuum up to 1.0E-2 Torr; select turbomolecular pump for vacuum up to 1.0E-5 Torr. To minimize oil particle contamination, oil-less pump (vacuum up to 1.0E-2 Torr) can be used to replace mechanical pump.
8. Customize your furnace by choosing from various furnace accessories provided by NBD
-
Controlled gas delivery,Flow meter & mass flow controller, vacuum / pressure gauge and controller
9. If any question on configuring your tube furnace, please contact NBDtechnical support to discuss your application needs.
-
Contact us by phone: +86—18538509702, or email: nbd@nbdkj.com
The post How To Choose A Tube Furnace appeared first on Laboratory Muffle Furnace.
[ad_2]
Source link