How to repair the lining of high temperature muffle furnace?

1. Pull out the broken high-temperature muffle furnace and make the bottom flat and clean;

2. Check if the tail terminal is in good condition, fix the terminal with a proper wrench, and replace it if it is damaged;

3. Treat the interface between the muffle furnace door and the furnace chamber evenly, put it into the furnace, make the furnace and the furnace door close together, and seal the interface with high-temperature mud;

4. Wrap the hearth with blanket cotton and fasten the two sides with bricks to prevent the hearth from moving on both sides;

5. In the high temperature muffle furnace, connect the tail heating wire to the 6 terminals at the tail and tighten it with screws. Note that there should be a certain space between the heating wire and the heating wire, and each outlet wire should be wrapped with cotton so that it cannot be in contact with the shell. Cause a short circuit;

6. Use lightweight bricks to fasten the rear tail, and be careful when plugging the cotton at the tail to prevent the heating wire from being plugged;

7. Before wiring the test machine, use a multimeter to measure whether the resistance of the three wires is the same, and check whether there is a short circuit with the shell;

8. Press the heating switch of the high-temperature muffle furnace, the heating indicator light is on, use a multimeter ACV250 or 750 gear, one meter pen touches the metal shell of the furnace body, and one meter pen holds the measuring meter head by hand to check whether there is electric leakage, if there is electric leakage Be sure to check the wiring position of the heating wire again.