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Tube furnace

Single temperature zone tubular furnace

Release time: December 30, 2019 11:29:41 Views: 47
  Single temperature zone tubular furnace It is a tubular furnace with only one constant temperature zone.


Installation method:

Installation of furnace body

The electric furnace can be placed on the worktable to fit the physiological operation height of human body. The effective bearing capacity of the working table should be greater than 200kg.

Electrical installation

Power supply configuration: 220 V (380V). According to the user's electric control cabinet, the power should be greater than 4kw.

The thermocouple is inserted into the furnace with a depth of 25 mm, and is connected with the temperature control instrument by using n-grade compensation wire. Note: quartz tube should be installed first and then thermocouple, thermocouple can not contact with quartz tube. The electric furnace and control cabinet shall be grounded as a whole, and the grounding resistance of grounding wire shall be less than 4 Ω.

Resistance wire connection mode: two parallel, power supply: single phase 220 V (or 380V).

Inspection and fastening

Due to transportation and other reasons, the fastening condition of each screw of furnace body shall be checked to ensure that there is no error.

Oven drying

After the installation and wiring of the electric furnace are correct, start to dry the furnace. At the same time, it can be used to check the reliability of the oven and the refractory system.

Preparation before drying:

Set the control temperature according to the drying process requirements.

Room temperature ~ 150 ℃ for 1 h,

150 ℃ for 1 h

  150~600℃,1h

600 ℃ for 1 h

  600~950℃,2 h

950 ℃ for 2 h
Skills of tube furnace in installation and use

Application: it is widely used in the experiment and production of refractories, electronics, ceramics, metallurgy, machinery, building materials, special materials, new materials development, fluorescent materials and other fields.

Matters needing attention in using tubular furnace

1. Once there is a problem, turn off the power supply immediately.

2. The instrument should be placed in the air circulation place and the furnace should be cleaned.

3. The thermocouple is not easy to be pulled out at high temperature to prevent the outer sleeve from bursting.

4. If the electric furnace is of vacuum sealing structure, flammable and explosive gas shall not be introduced.

Before and after using the electricity, check the safety targets.

6. The high temperature solution should not be leaked to the furnace bottom, so as to avoid the plan of using backing plate or alumina powder for blocking.

7. During the experiment, take protective measures such as wearing high-temperature gloves and masks to avoid inhaling high-temperature harmful evaporation gas.

8. After the electric furnace is used for a period of time, the furnace will show fine cracks, which belong to normal appearance. This appearance will not affect the experimental production, so it can be repaired with alumina coating.

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