1700℃ three temperature zone tube furnace

Specific Introduction:
KJ-1700X-III is a CE-certified three-zone high-temperature tube furnace. The outer diameter of the furnace tube is 60mm, and the length of each heating zone is 12". Three digital temperature controllers can independently control the temperature. Set 30 steps of temperature rise and fall program, temperature zone 1 (the center of the heating zone) is heated with Super-1800 grade silicon molybdenum rods. When the temperature reaches 1700°C, the other two temperature zones are heated with silicon carbide rods. At 1400°C, this tube furnace can form a temperature gradient, adjust the temperature of the three temperature zones, and prepare functional materials under the thermal gradient. It is an ideal equipment, and it is also suitable for CVD method to make thin film epitaxial growth. .
Parameters:

Furnace Structure	·Double-layer shell structure with air cooling system ·The surface of the inner furnace is coated with high-temperature alumina coating imported from the United States, which can improve the heating efficiency of the equipment and also extend the service life of the instrument
Basic parameters	Thermocouple: B type (temperature zone 2) and S type (temperature zone 1, 3) thermocouple Power supply: three-phase AC380V, 50Hz maximum 10KW Operating temperature: Temperature zone 1: Long-term 1300℃ (1400℃＜1h) Suggested heating rate: ≤5℃/ min Temperature zone 2: Long-term 1600℃ (1700℃＜1h) Suggested heating rate: 5℃/ min (T< 1600℃); 2℃/ min (T>1600℃) Temperature zone 3: Long-term 1300℃ (1400℃＜1h) Suggested heating rate: ≤5℃/ min Heating zone: heating zone length: 630mm (three temperature zones: 190mm+250mm+190mm)
Furnace tube size	·Material: Corundum tube ·Φ60×1200mm L
Flange	1. The standard installation on the flange is a Φ8 pagoda nozzle joint 2. In order to obtain a better pumping rate, KF25 adapters can be used 3. In order to better pass the gas into the furnace tube, a 1/4" stainless steel ferrule joint can be used
Heating element	Temperature zone 1: 4 U-shaped SiC heating rods Temperature zone 2: 6 U-shaped MoSi2 heating rods Temperature zone 3: 4 U-shaped SiC heating rods
Sealing flange	·A pair of SS 304 vacuum flanges and double high temperature silicon O-rings are included ·Two needle valves have been installed on two flanges respectively ·A vacuum pressure gauge is installed on one side flange ·Optional: You can choose kf25 vacuum port flange ·Optional: You can order flange brackets
Temperature Control System	·Contains a temperature controller ·PID automatic temperature control system ·Intelligent 30-segment programmable control ·Temperature control accuracy: ±1℃ ·Three temperature zones are controlled by three independent temperature control systems ·Default DB9 PC communication connection port ·Passed MET certification ·Computer temperature control software can be purchased to control the heating curve and export data
Temperature calibration (optional)	·Regularly calibrate the temperature of the tube furnace to maintain the accuracy and uniformity of the temperature. You can purchase a simple calibration kit from our company to assist you in this work. The complete calibration kit includes ·48"L (1/4"OD) K-type thermocouple calibration ·An Omega temperature calibrator ·Thermocouple Compensation Wire ·You can consider a molecular pump, the vacuum degree can reach 10-5 Torr
Dimensions	Furnace size: 1600 L x 500W x 750 H mm Furnace size: 270X170X160X3
Net weight	About 150Kg
Warranty	One year warranty and lifetime technical support. Special tips: 1. Consumable parts such as heating elements, quartz tubes, sample crucibles, etc. are not included. 2. Damage caused by the use of corrosive gas and acid gas is not covered by the warranty.
Vacuum system	·The mechanical pump can reach 50mTorr (reference value) ·It can reach 10E-5 Torr through molecular pump (reference value) ·A cold vacuum trap can be purchased to avoid pollution caused by the vacuum pump
Quality Certification	CE certification.
Precautions for use	·The air pressure in the furnace tube cannot be higher than 0.02MPa ·Because the internal pressure of the gas cylinder is relatively high, a pressure reducing valve must be installed on the gas cylinder when passing gas into the furnace tube. To ensure safety, it is recommended to use a pressure lower than 0.02MPa. It is recommended to purchase a pressure reducing valve from our company. The company's pressure reducing valve has a range of 0.01MPa-0.1MPa, which will be more accurate and safe when used ·When the temperature of the furnace body is higher than 1000℃, the furnace tube must not be in a vacuum state, and the air pressure in the furnace tube must be equal to the atmospheric pressure ·The gas flow into the furnace tube must be less than 200SCCM to avoid the impact of the cold atmosphere on the heated quartz tube ·Long-term use temperature of quartz tube <1100℃ ·For the sample heating experiment, it is not recommended to close the exhaust valve and intake valve at the flange end of the furnace tube. If you need to close the gas valve to heat the sample, you should always pay attention to the indication of the pressure gauge. If the indication of the air pressure is greater than 0.02MPa, you must open the vent valve immediately to prevent accidents (such as furnace tube rupture, flange flying, etc.)

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