How to make handmade ceramic cups?

What are the manufacturing processes of ceramic cups? Let's take a look at Bian Xiao's sharing.

1, mud exercise

Porcelain stone is taken from the mining area, finely ground with water, washed, removed from impurities, and made into brick mud after precipitation. Then mix the mud with water to remove slag, rub it with your hands or step on it with your feet, and squeeze out the air in the mud to make the water in the mud uniform.

Step 2 make disappear

Throw the clay ball into the center of the turntable of the pulley car, and draw the rough shape of the blank by bending, stretching and shrinking with this method.

3. Printing blank

Rotate the seal shape according to the arc in the blank, cover the semi-dry blank on the mold, pat the outer wall of the blank evenly, and then demould.

4, beneficial to the blank

It is a high-tech process to cover the blank on the bucket of the pulley car, turn the wheel and cut it with a knife to make the blank thickness appropriate and smooth inside and outside.

5, drying the blank

Put the processed blank on the wooden frame to dry.

Step 6 carve flowers

Carve patterns on dry or semi-dry blanks with bamboo, bone or iron knives.

Step 7 glaze

The common round mouth is dipped in glaze (the blank is immersed in the glaze basin, and the mouth edge is lifted immediately when it is flush with the glaze surface) or glazed (the glaze slurry is injected into the blank, shaken to make it glaze evenly up, down, left and right, and then the excess glaze slurry is quickly poured out), and the cutter (compared with the "rounder", the "rounder" refers to a round vessel, such as a bowl, dish, etc., drawn from the blank. ). Vessels with complicated molding process, such as bottles, statues, pots, cans, etc. , both called "cutter") or big circular machine blowing glaze (the method is to cover the bamboo tube with spun yarn, dip the glaze and blow it with the mouth, and repeat this for many times to obtain a glaze layer with uniform thickness on the surface of the blank).

8. Kiln combustion

The time course is about one day and the temperature is about 1300℃. First, build a kiln door, ignite and burn the kiln, and the fuel is pine. Provide technical guidance for piling, measure the fire duration, master the change of kiln temperature, and decide the ceasefire time.

9. Colored glaze

Overglaze colors, such as multicolored and pastel colors, are coated on the glazed surface of the fired porcelain and then fired in a red furnace at a low temperature of about 700℃-800℃. In addition, paint on the blank before firing, such as blue and white, underglaze red, etc. , known as underglaze red, is characterized by never fading under high temperature glaze.

Expand small knowledge:

First, how to make handmade ceramic cups?

1, grouting

First, clean the mold and tie it tightly with a rubber band, then stir the ground mud evenly, scoop it into the grouting bucket, and then gently pour it into the mold until it reaches the edge of the mold. Wait about half an hour, pour out the mud in the mold, and the mold will be upside down on the table. The mud blank can be taken out after 20 minutes.

2, vertical billet

Put the taken mud blank into the drying room for drying, put the dried mud blank on the blank setter, gently press it by hand, start the blank setter, and put it in with a blade after the mud blank of the cup rotates at high speed to repair the uneven edge of the mouth and periphery.

Step 3: Trim

Dip the vertical cup in a little water, gently wipe it with sponge and flannel, and wipe off the rough particles on the surface to make the surface and interior of the cup smooth and delicate. The repaired mud blank needs to be sent to the curing barn again for drying.

4, firing

Put the repaired and dried cup mud blank into a kiln, then raise the temperature to 1 180℃, naturally cool, and you're done. This time will take about 6 hours.

2. What are the characteristics of ceramic cups?

The main raw material of ceramic cups is mud, not rare metal, which will not waste our living resources, pollute the environment and destroy resources, and is non-toxic and harmless. The choice of ceramic cups reflects the understanding of environmental protection and the care for our living environment.

Ceramic cups are environmentally friendly, durable and practical, and are the crystallization of soil, water and fire. Natural raw materials, combined with the power of nature and human science and technology, have created indispensable daily necessities in our lives. The invention of pottery is an important process of human civilization-it is the first time that human beings have created new things by using natural things according to their own will. According to the pottery fragments found in Nihewan area of Yangyuan County, Hebei Province in the late Paleolithic period, China's pottery has a long history of many years.

The above is Bian Xiao's sharing, I hope it will help you.