How to install vacuum furnace?

Vacuum furnaces may not be unfamiliar to everyone, but there are many problems about the installation of vacuum furnaces, so how to install the vacuum furnaces is correct? How to use the vacuum furnaces correctly?

1. Attention should be paid to the installation of graphite electrothermal elements and water-cooled electrodes in vacuum furnaces.

 Graphite elements should be handled with great care in case of damage.

The bolts should be tightened reliably in order to achieve good electrical contact. Do not exert too much force to avoid thread breaking.

2. The layout, installation location and civil conditions of the vacuum furnace provided in the reference paper. Select the permanent installation site of equipment and carry out civil construction. Installation site should be free of smoke and dust pollution, clean environment, dry air, should not be put together with other equipment, maintain room temperature of 10-35 C, smooth and clean ground.

3. Connect the pipeline to the refilling pipeline according to the system diagram of the refilling system of vacuum furnace. It is suggested that high purity nitrogen with purity of 99.99%-99.999% be provided as refilling gas.

4. According to the water cooling system diagram, the intake and drainage pipes are connected to the inlet and drainage ports of the furnace respectively, providing water sources with pressure of 0.1-0.15 MPa, temperature of no less than 15 C and no higher than 30 C. It is better to provide circulating water and rust-proof water.

5, the vacuum system is positioned according to the vacuum system diagram, assembled and connected with the furnace body. When assembling, the O-ring is coated with a thin layer of vacuum grease, and the flange is tightened evenly.

6. The furnace body and control box of the vacuum furnace are grounded, and the grounding resistance is less than 4 Euros. The gauge cable of the instrument and the vacuum gauge should also be grounded.

7. Connect the power supply to the corresponding electrical connection according to the electrical wiring diagram, check the voltage of the power supply, connect the control box, the power box and the wire and cable between the furnace body.

8. Provide a pneumatic source with a minimum pressure of 0.5 MPa. Industrial nitrogen can be used. If compressed air is used, self-contained pneumatic "three major components" (such as oil mist, pressure reducer and water separator) will be provided.

9. Install other vacuum furnace components, including conduits, measuring instruments, etc.

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