2. Turn on the water pump to make the medium frequency power supply, the induction coil of the vacuum furnace and the cooling system of the furnace body circulate normally, and adjust the water pressure to control at the prescribed value.
3. Check the power supply system of the vacuum pump, the belt of the belt disc is tightened, and whether the vacuum pump oil is located in the middle line of the oil seal observation hole. After checking, the belt disc of the vacuum pump can be manually rotated. If there is no abnormality, the vacuum pump can be started when the butterfly valve is closed.
4. Inspecting the condition of vacuum sintering furnace, it is required that the vacuum furnace should be hygienic, the induction coil should be well insulated, the sealing vacuum tape should be elastic and the size should be qualified.
5. Check whether the lever handle of the vacuum furnace body is flexible to start.
6. Check whether the rotating Maxwell vacuum gauge meets the requirements.
7. Check the graphite crucible and whether the furnace fittings are complete.
8. After the above preparations are completed, turn on the power supply, turn on the medium frequency power supply, try to start the frequency conversion according to the intermediate frequency start-up rule, and stop the frequency conversion after success before the furnace can be opened.
9. The observation and temperature measurement holes of the upper cover of the vacuum sintering furnace need to be cleaned every time the furnace is opened for observation and temperature measurement.
10. According to different sintering products, the corresponding charging mode should be adopted. Packing according to relevant material charging rules shall not be changed at will.
Roots vacuum pump
Liquid Ring Vacuum compressor
Dry Type Vacuum Pump
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