There are two advantages of firing ceramics with graphite saggar: it has certain thermal conductivity and thermal stability; increases the firing amount, prevents product adhesion, and improves the yield.
Graphite saggar is also a kind of kiln furniture. We are firing ceramics. In order to prevent the damage and contamination of the glaze and its green body caused by gases and harmful substances, the green body and ceramics are put into a container made of refractory materials. For firing, another name for this vessel is: graphite boat.
Figure: Graphite Saggar
In the middle of the Yuan Dynasty, we generally used the method of burning mangou porcelain in the ring, but at this time the ring was changed from the porcelain of the Song Dynasty into a pottery bowl.
1. It is easier to install blanks than the fifth generation.
2. It can make full use of the high altitude in the kiln to increase the charging amount, thereby saving the cost of refractory materials and their roasting.
3. Because the exposed defect of the tire is only in the center of the plate or bowl, it is more suitable than the unglazed burner.