Common faults and solutions of laboratory rotary tube furnace

The laboratory rotary tube furnace is mainly used for heat treatment experiments of activated carbon, metallurgy, glass, lithium battery positive and negative electrode materials, rare earth nano-new energy, abrasive tools and other powder particle industries under certain atmosphere conditions. Its light weight, fast heating speed, energy saving, time saving, high temperature resistance, corrosion resistance, good heat preservation, can meet the requirements of any kind of rapid sintering. It has extremely low coefficient of thermal expansion, high temperature resistance, good chemical stability and good electrical insulation. The entire furnace body adopts a double-layer liner structure with air gap isolation in the middle. Even if the furnace temperature is as high as 1200°C, the surface of the furnace body can still be safely touched without feeling hot. According to the temperature, the tube furnace is divided into: 1200 ℃ tube furnace,1400 ℃ tube furnace and 1700 ℃ tube furnace.

The flange of the laboratory rotary tube furnace adopts double-ring sealing technology to effectively improve the atmosphere of the flange. The flange is equipped with a variety of joints, which can be connected to a resistance vacuum gauge and a vacuum bellows, and can be made into a hinge type that is easy to remove. The heating element adopts high-quality embedded alloy heating wire, which has high heating efficiency, high temperature resistance, oxidation resistance, corrosion resistance, fast heating up, long life, small deformation at high temperature, convenient installation and maintenance, and long service life. Easy to operate, accurate and reliable temperature control, safe multi-stage programmable control, can simplify the complicated test process, and truly realize automatic control and operation.
How to analyze the main faults of the laboratory rotary tube furnace?
1. The indicator light does not light up after turning on the switch
Reason: The fuse may be blown;
Solution: Just replace the fuse.

2. When the temperature rises, the temperature display does not increase but decreases
Reason: The positive and negative poles of the thermocouple are reversed;
Treatment: Change the positive and negative wires of the thermocouple.

3. The ammeter has no current and the voltmeter has voltage
Cause: The heating element is broken;
Treatment: Open the furnace door, observe which heating element is broken, and replace it instead of all of them.

4. The voltage and power supply are normal but the electric furnace does not work
Reason: There is an error in the parameters of the electric furnace;
Solution: Ask the supplier for help to tell how to reset the parameters.