Products Description
High vacuum tube furnace apply to universities, research institutes, industrial and mining enterprises and other tests and small batch production. Safe and reliable, simple operation, high precision temperature control, good insulation effect, temperature uniformity, and can be evacuated and filled with a variety of protective gas or destructive gases.
High Vacuum tube furnace Feature
● Different temperature range optional;
● PID automatic control and auto-tune function.
● Intelligently programmable controller, Set program freely;
● Different vacuum unit to meet their vacuum degree optional;
● Furnace tube can be stainless steel tube, quartz tube, alumina tube optional.
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Furnace Shell Structure: |
Double-layer carbon steel plate shell, surface sprayed with heat resistant plastic powder coating to ensure that the outer surface temperature of the furnace is ≤40.C; |
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Chamber Materials: |
High-grade alumina fiber ceramic board and thermal insulation cotton. |
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Furnace body: |
Split/closed type heating chamber |
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Max. Temperature: |
1200.C |
1400.C |
1700.C |
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Continuous Working temperature: |
1000.C-1100.C |
1300.C |
1600.C |
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Heating Element: |
Fe-Cr-Al alloy resistance wires |
SiC rod |
MoSi2 rod |
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Thermocouple Type: |
K type |
S type |
B type |
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Tube Type: |
S/S tube or quartz tube |
Alumina tube |
Alumina tube |
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Rated voltage & Power: |
AC 110V/220V/380V/415V 50/60Hz; |
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Tube size: |
Tube OD 40 /60 /80 /100 /120mm or bigger optional; |
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Heating zone: |
1/2/3/ or more heating zone available; heating zone:200 / 300 /400 /600mm or longer optional. |
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Heating Rate: |
0-30.C /min, Suggest to use 10.C/min under 1400.C,1400.C-1600.C 5.C/min,>1600.C 1-2.C/min |
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Temperature Precision: |
±1.C ; |
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Tube sealing: |
With stainless steel flanges at One or both ends to sealing, with inlet/outlet gas port, valves and extra thermocouple port. |
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Temperature Controller: |
Temp. Controller with 1 program storage capacity and 30 segments ramp & dwell; PID automatic control and auto-tune function. Built in protection for over-heating and broken thermocouple. |
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Inert gas atmosphere |
Nitrogen, Argon and other Inert gas. Max. pressure: <0.02Mpa; |
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Vacuum level: |
Rough vacuum -0.1Mpa; Higher vacuum 10Pa, 1.33x10-1 ~1.33x10-2Pa optional; |
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Vacuum Unit: |
Single-stage rotary vane pump, Mechanical pumps, Mechanical pump + diffusion pump; |
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Optional parts: |
Touch screen controller, paperless recorder, Remote communication control system, 2-4 gas mixing system, higher vacuum optional, Oxygen content detection,H2 safety device; |
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Warranty |
One year limited warranty with lifetime support, excluding heating element, cooling fans, thermocouple and ceramic tube damaged by user. Attention: Any damages caused by the use of corrosive and acidic gases, and any damage from wrong operate and use are not under the coverage of One Year Limited Warranty. |
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Standard Accessories
Tube block 1pc, furnace tube 1pc, Vacuum pump 1 unit, Stainless steel hook 1pc, Thermal gloves 1 pair, Operation manual 1pc.
Detail picture for High Vacuum tube furnace
High vacuum tube Furnace Application
High Vacuum tube furnaces are widely used in scientific research and small batch production in industrial and mining enterprises, as well as in ceramics, metallurgy, electronics, glass, chemical industry, machinery, refractory materials, new material development, special materials, building materials, sintering, etc. involved in scientific research and teaching in universities and colleges, such as sintering, annealing, tempering, quenching and other processes
Warm Tips
1. The air pressure inside the furnace tube should not exceed 0.02Mpa;
2. Do not use graphite crucibles in corundum tubes;
3. Due to the high internal pressure of the gas cylinder, when introducing gas into the furnace tube, a pressure reducing valve must be installed on the gas cylinder. The range of the pressure reducing valve is 0.01Mpa -0.1Mpa, which will be more precise and safe to use.
4. When the temperature of the furnace body exceeds 1000 ° C, the furnace tube cannot be in a vacuum state, and the air pressure inside the furnace tube must be equivalent to atmospheric pressure and maintained at atmospheric pressure.
5. The gas flow rate entering the furnace tube is less than 200sccm to avoid the impact of cold air flow on the furnace tube,
The recommended temperature for long-term use of corundum tubes should not exceed 1650 ° C;
6. When heating the sample, it is recommended to open the exhaust valve and intake valve at the flange end of the furnace tube for use; If it is necessary to close the gas valve to heat the sample, it is necessary to always pay attention to the pressure gauge;
When the pressure index is greater than 0.02Mpa, the exhaust valve/extraction valve (or vacuum pump extraction) must be immediately opened to prevent furnace tube rupture, flange flying out, etc.
7. We do not recommend customers to use flammable, explosive or toxic gases. If the customer needs to use them due to process reasons, please take protective and explosion-proof measures yourself.
Our company is not responsible for any issues caused by the use of flammable, explosive, or toxic gases.
8. Due to manufacturing process reasons, there is a risk of fracture during heating and sintering of aluminum oxide/corundum tubes, which cannot be completely avoided.
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