Manufacturing technology of blue and white porcelain

One: Mud kneading, the purpose is to empty the air bubbles in the mud, so as to further compact the mud. If this process is omitted, the green body is easy to appear bubbles, and if the green body is too dry, it is easy to be broken and deformed during firing.

2. Blanking: the process of making the washed porcelain clay into various shapes and drying it.

Three: printing blank, the traditional circular machine blank, that is, roughly corresponding blank is made according to the final machine type for later printing blank.

Fourth, benefit the blank, that is, finish the printed blank to make it smoother and rounder.

Five: when the glaze, generally made of timely, feldspar, clay. The methods of glazing ceramics are spraying, blowing, dipping, pouring and swinging. The inner glaze (inner glaze) and bottom glaze (foot glaze) adopt the traditional glaze throwing method, and the outer glaze adopts the glaze dipping method.

And 6, drawing the blank, swinging the inner glaze blank, and entering the blank drawing process. After drying, draw a pattern on the surface of the device with blue and white materials.

Seven: external glazing, the finished porcelain blank needs secondary glazing.

Eight: write the bottom payment and apply the bottom glaze.

Nine: firing, according to the structural size of the kiln body and the size of all the green bodies to be fired, a reasonable fire path should be left, otherwise the firing will fail.

Ten: open the kiln. After 12- 18 hours of natural cooling, the kiln can be opened when the temperature in the kiln body drops to normal temperature.

XI: finished product