What are the steps in the production process of ceramics

A, ceramic craft production process?

1, ceramics production process --- practice mud: first go to the mining area to pick porcelain stone, take back and cracked into egg size, pounded with a water pestle and mortar into powder, and then wash to remove impurities, and then let it dissolve into a brick-like mud. Into the mud block after water blending, remove the slag, with the hand to rub or foot, let the mud mass of the air to clean up, in the water under the mud production in the even distribution.

2, ceramic craft production process --- billet pulling: billet pulling need to use the windlass car, the mud ball drop throw in the windlass car, and then began to turn the wheel. After that, with the hand method to flexion and stretching put to pull out the mold of the body. Pull billet is very must technology, first of all to familiarize with the shrinkage rate of clay, general shrinkage rate of 18-20%, according to different types of size and dimensions of the free send and receive size.

3, ceramic craft production process --- printing blanks: in this process, it is the shape of the mold is the installation of billet human body shaped arc, to rotary molding, after drying to half-dry, and then in the billet overlay in the mold species, evenly distributed by patting the blank body wall, and then demolding.

4, ceramic craft production process --- Li billet: the first bar billet overlay into the windlass car, began to rotate the car when the disk, then use the knife spinning. When the body thickness necessary, the surface and inside clean only.

5, ceramic craft production process --- sunshine billet: this step is very simple, as long as the raw material molding billet placed on a wooden rack to dry.

6, ceramic craft production process --- carving: carving tools are made of bamboo, bone or iron knife, in the dried billet carving out patterns.

7, ceramic craft production process --- glaze: ordinary round porcelain with jiao or swing method of glaze, faceted and large round porcelain with blowing glaze method, glaze into the kiln after firing.

8, ceramic craft production process --- firing kiln: first porcelain out of the sagger, and then baked containers, this is to prevent porcelain water pollution. Must be roasted about a night, the temperature is about 1300 degrees, the fuel is pine firewood, of course, in the roasting also need to have technical guidance, measurement of the fire, control of the kiln temperature changes, the requirements of the truce time.

9, ceramic craft production process --- color painting: glaze color such as five colors, pastel, etc., is in the glaze has been burned into the porcelain engraved pattern, fill color, and then into the red furnace to low temperature firing baking, temperature of about 700-800 degrees.

Two, choose what to pay attention to ceramics?

1, look at the front of the ceramic tile

We all know that ceramic tiles are made of clay, quartz sand and so on mixed, so we can look at the appearance of the tiles when we buy, if the surface of the crystalline bright that is basically a good quality of good ceramic tiles; if the appearance of the eye-visible pinholes, it is not recommended to buy, because the tiles are generally not good.

2, look at the back of the tile

In addition to looking at the front of the tile, we can also see some of the doorway from the back of the tile. Generally speaking the normal back of the tiles are milky white, if you look at the back of the tiles are very white, it may be added a chemical whitening agent, this chemical can make the tiles whiter and brighter, but if the manufacturer does not grasp the degree of addition, it is easy to exceed the standard, the formation of radioactive substances, harmful to the human body.

3, look at the water absorption rate of the tiles

As long as talking about the tiles can not be separated from the water absorption rate, because the water absorption rate is linked to the density, so we can look at the weight of a single piece of ceramic tile roughly know this piece of ceramic tile water absorption rate, in general the greater the weight of the lower the water absorption rate, and also shows that it is a good brick.

The above is a small introduction to the production process of ceramic technology? Select ceramics pay attention to what? When we choose ceramics, no matter how many lines of brands we buy, the quality of ceramics is more important, good quality products can be used for a longer time.