Glass is an electrical conductor at high temperature.

Molten glass contains alkali metal ions of sodium and potassium, which is conductive.

Joule heat is generated when current passes through. If the heat is large enough, it can be used to melt glass, which is called "glass electrofusion".

Whether it is plain firing or glaze firing, the work should not be too full, and the work should not be in contact with the furnace wire (the work should be at least two fingers away from the furnace wire).

It is necessary to ensure that the blank has been completely dried before firing.

Before the first 300℃, it is necessary to decide when to close the kiln door and tuyere according to the steam discharged from the kiln.

You can put a piece of glass in front of the kiln. If there is fog on the glass, it means that the water in the kiln is not discharged. ).

Debugging of firing temperature rise curve Operate the kiln body according to the specified steps, and adjust it according to the specific work under special circumstances.