Vacuum furnace maintenance and maintenance：

1. After completion of work, the vacuum furnace heating chamber shall be kept in a vacuum state of less than 100Pa and the cold chamber in 133Pa.

2. The inside of the equipment should be cleaned and dried regularly with silk cloth soaked in alcohol or gasoline. Once every 2 weeks is recommended.

3. When disassembling and assembling the parts of the sealing part, it should be cleaned with gasoline or alcohol, and then installed with vacuum grease after drying.

4. The outer surface of the equipment should be wiped frequently to keep it clean.

5. All electrical joints should be kept clean and tight. Check and tighten the electrical joints before each furnace opening.

6, often check the insulation resistance of the furnace, when the insulation resistance is less than 100Ω, it is necessary to carefully check the electric heating element, electrode and heat shield and other places, and timely troubleshooting before opening the furnace.

7, mechanical transmission parts according to the general equipment lubrication requirements, regular refueling or oil change.

8. Vacuum units, valves, instruments and other accessories shall be maintained and repaired according to the technical instructions attached to the factory products.

9. Power should be cut off for maintenance. When live maintenance is necessary, the absolute safety of maintenance personnel, operators and equipment must be guaranteed.

10. The cooling water of vacuum furnace is very important, so it is not allowed to interrupt the cooling water during the whole working period.

11. The workpiece and workpiece car shall be cleaned and dried before entering the furnace to prevent water and dirt from entering the furnace.

12, the transmission parts found card, limit is not allowed, control failure phenomenon, should be immediately excluded, do not force operation, so as to avoid damage to the parts.

13. Operate in strict accordance with the operating rules, do not pry the switch at will, informal operators are forbidden to operate.