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1700℃ vacuum sintering furnace

What are the preparations for vacuum sintering furnace before operation? Today, I will give you a brief summary, I hope you can avoid more unnecessary troubles in the operation.

The preparatory work that needs to be done before the operation of the vacuum sintering furnace is as follows:
vacuum furnace laboratory
1. Check the vacuum pump power system, the belt pulley belt is tight, and the vacuum pump oil is located in the center line of the oil seal observation hole.

2. After checking, manually rotate the vacuum pump belt pulley. If there is no abnormality, start the vacuum pump with the butterfly valve closed.

3. Check the internal conditions of the vacuum sintering furnace, requiring first-class hygiene in the vacuum furnace, good insulation of the induction coil, elasticity of the sealing vacuum tape, and qualified size.

4. Check whether the lever handle of the vacuum furnace body is flexible to start.

5. Check whether the rotary Maxwell vacuum gauge meets the requirements.

6. Check whether the graphite crucible and furnace accessories are complete.

7. After the above preparations are completed, turn on the power supply, switch on the intermediate frequency power supply, and try to start the frequency conversion according to the intermediate frequency start rules. After success, stop the frequency conversion before starting the furnace.

8. The observation and temperature measurement holes on the upper cover of the vacuum furnace body must be cleaned each time the furnace is opened for observation and temperature measurement.

9. When installing the furnace, the furnace should be installed according to different sintered products. Load the plate according to the relevant material furnace rules, and shall not be changed at will.

10. In order to maintain a constant temperature and prevent heat radiation, add two layers of carbon fiber to the heating crucible, and then cover it with a heat shield.

11. Padded vacuum sealing tape.

12. Under vacuum conditions, work pieces or containers that are easy to volatilize and affect vacuum sanitation, cause pipeline blockage, and vacuum pump dirty, shall not enter the furnace.

13. All products with forming agents (such as oil or paraffin) must be removed before being sintered in the furnace, otherwise it will cause adverse consequences.

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