How to operate vacuum hot press furnace safely?

How to operate vacuum hot press furnace safely?

1. The cooling water source of intermediate frequency induction furnace, vacuum furnace body and electromagnetic induction coil -- the water storage tank must be filled with water, and there can be no residue in the water.

2. Run the water pump to make the water circulation system of the medium frequency induction furnace, the electromagnetic induction coil of the vacuum furnace and the furnace body refrigeration system normal, and adjust the water pressure to control at the standard value.

3. Check the switch power supply system of the vacuum pump, the belt disk drive belt is tight, and the vacuum pump oil is located in the center line of the oil seal inspection hole. After inspection, manually rotate the drive belt disc of the vacuum pump. If there is no abnormality, the vacuum pump can be run with the butterfly valve turned off.

4. Check the situation in the vacuum furnace body, and stipulate that the vacuum furnace body is clean, the electromagnetic induction coil is well insulated, the sealing vacuum tape is elastic, and the shape size meets the standard.

5. Check whether the lever handle of the vacuum hot press furnace is sensitive.

6. Check whether the rotary McGomez vacuum gauge is in accordance with the regulations.

7, test graphite crucible, furnishing accessories is complete.

8. After the above is ready, access the switching power supply, close the intermediate frequency induction furnace, and test run the frequency conversion according to the intermediate frequency operation rules. The frequency conversion can be terminated after success, and the furnace can be turned on.

9. The observation and temperature measuring hole of the top cover of the vacuum hot pressing furnace should be cleaned every time the furnace is opened, so as to facilitate the observation and temperature measurement.

10. Effective furnace loading method should be adopted according to different sintering products. According to the relevant material loading rules, can not be arbitrarily changed.

11. In order to better maintain constant temperature and prevent heat transfer, add two layers of carbon fiber material to the heating crucible, and then cover the heat insulation screen.

12. Put on the vacuum sealing tape.

13. Actually operate the lever handle, rotate the top cover of the vacuum hot pressure furnace and closely overlap the furnace body, learn to put down the top cover, and lock the fixing nut.

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