My system is not decent

The appearance of a piece of fine Ru porcelain, through backtracking, let Chen Wenzhe know how Ru kiln porcelain was fired.

Among them, he also saw the firing process and effect of genuine Ru kiln porcelain in history.

In particular, you can see the porcelain-making craftsmanship of Yan He, a top Ru porcelain maker, which made Chen Wenzhe comprehend many skills and more skills by analogy.

Standing on the accumulation of thousands of years of culture, he naturally understands it more thoroughly than Yan He.

The ancients did not know what the nature of glass and agate was, but they must have figured out the similarities between the two.

They don't know what silica is, but they must know the difference between bauxite and iron soil.

Chen Wenzhe is different. After seeing the ancient craftsmanship, he knows why the ideal firing effect can be achieved.

With the background of modern science and technology, Chen Wenzhe sees more thoroughly than the ancients.

For example, Ru porcelain is glazed with agate, which not only reduces the firing temperature, but also controls the kiln temperature at 1180-1280 degrees, and also restricts the depth of the fetal color. More importantly, this temperature promotes the crystallization of Ru porcelain glaze—phase-separated glaze success.

The so-called crystallization is actually to control the temperature in the kiln to promote the continuous movement of the crystal molecules in the carcass and glaze, and roll from bottom to top, so that the crystal shape changes from "point" to "flower".

This process is exactly the same as the formation law of natural famous stone texture.

The appearance of this feature will make the layering of the enamel very rich and varied, and it will be distributed randomly.

This is indistinguishable from natural jade, which is why Ru porcelain is "like jade but not jade, better than jade".

To sum up, the main reasons for agate to be glazed are firstly to obtain azure color, secondly to reduce the degree of vitrification of the glazed surface, and thirdly to promote phase separation—the success of crystallization glaze is to enhance the jade quality of Ru porcelain. texture.

Of course, the formation of the azure color of Ru porcelain is not only caused by the glaze of agate.

The combination of raw materials, firing process, and agate glaze, etc., every link is an indispensable condition for firing an authentic Ru porcelain.

"The craftsman who can make the top Ru kiln porcelain really lives up to his reputation!"

Chen Wenzhe admired Yan He's views on agate glaze and his process of firing Ru kiln porcelain.

The ancients did not understand science and technology, but through long-term production practice, they could actually study various chemical changes and the ratio of various raw materials clearly. The difficulty of this is definitely beyond the imagination of modern people.

Of course, the reason why Chen Wenzhe understood at a glance is definitely not his credit, it must be achieved on the basis of modern academic research.

He can learn by looking at the craftsmanship of the ancients. There must be a foundation, and this foundation is still very solid.

Because he knows very well that since the Republic of China, some people with lofty ideals have begun to conduct scientific research on porcelain.

During the period of the Republic of China, Mr. Zhou Ren began to conduct research on Chinese traditional ceramic technology, and published the "Ceramic Test Field Work Report".

This report conducted a comprehensive study on many issues such as porcelain raw materials, blanks, glazes, molding, painting, and firing in the test site, and pioneered the introduction of chemical methods into the research of porcelain making technology.

After the founding of New China, the research on Ru Kiln's porcelain-making process was gradually deepened.

It was on the basis of all these that Chen Wenzhe could successfully learn the unique skills of the ancients.

It is a pity that a book on making Ru porcelain has been lost.

Up to now, although there are many ancient documents about the porcelain-making process of Ru Kiln, there is no record of the overall process of Ru Kiln's porcelain-making process.

The raw materials, molding, firing and other technological links of Ru kiln are hard to find in ancient documents.

But Yan He's book is too detailed.

Before he wanted to imitate the Ru kiln of the Northern Song Dynasty, he deliberately classified six main features.

Obviously, he lacks knowledge that in order to make Ru kiln, one must have the four characteristics of Ru porcelain firing skills, which can also be called "four unique production skills".

The first is the ingredients. The selection of Ru porcelain from the body material to the glaze is very rigorous.

It must be raw materials such as kaolin, agate stone, golden soil, black soil within a certain range in the local area.

The second is the color change. Ru porcelain adopts a unique superimposed firing technique of supporting nails.

Full-glazed and branch-fired, and the changes in the glaze surface of the kiln were observed through the fire.

Control the temperature in the kiln according to the changing conditions of the kiln, and then control the change of the glaze color of the product.

This is a unique technique in the firing process of Ru porcelain, and it is also the core feature of Ruzhou Ru porcelain firing technology.

This skill depends entirely on the observation and understanding of kiln technicians, and there is no specific and unified quantitative index.

The third is cracks. Generally, the glaze of porcelain is straight cracked, but the glaze of Ru porcelain is obliquely cracked, shaped like a fly's wing or a cicada's wing.

It is precisely through the precise control of the temperature by the craftsmen that the exquisite Ru porcelain with crab claws, pear skin, caviar and ice cracks can be obtained.

The fourth is Ying Guangjue. Ru porcelain products fired with traditional Ru porcelain firing techniques will show different colors and hues according to the intensity of light.

The color will show obvious differences depending on the weather and cloudy weather.

Moreover, the tiny air bubbles accumulated under the glaze will present a spectacle of stars all over the sky when viewed under a microscope.

As long as there are these four unique skills, the firing of Ru kiln porcelain can start.

Of course, the process must be sorted out beforehand.

In particular, the selection of raw materials is even more important when firing Ru porcelain.

Not to mention anything else, just talk about the most basic black soil.

This is a kind of soil, but it is not common, because it is an important material for making porcelain.

It turned out that Chen Wenzhe really didn't know that black soil was also used in firing Ru Kiln porcelain.

Now that he knows, he can buy some, and he knows exactly where to buy it from.

As long as it is related to porcelain clay, Chen Wenzhe usually pays special attention to it.

Besides, he also has master-level mud training skills, and through the inheritance of clay figurine Zhang, he has also learned a lot of skills in processing and stale mud.

Therefore, when learning how to make Ru porcelain, it is no problem to mix the body mud.

Or this kind of black soil, Chen Wenzhe had seen news about it before.

There are many producing areas of black soil, but there are not many black soils of really good quality.

It was also in Ruzhou, where the villagers reported to the village officials that they had stolen the "black soil" for making ceramics, and the party who did the robbery responded that it was cleaning up the sludge!

Black soil is a kind of dark soil, which belongs to a kind of kaolin.

Villagers in the place of origin of this black soil reported it with their real names, and the village committee officials "cooperated" with the construction team for filling the soil, and robbed the "black soil" that could be used to make high-end ceramics at night.

Dozens of villagers "captured" the dump truck that was about to transport the "black soil" out on the construction site.

Later, the land department intervened in the investigation and ordered the construction party to prohibit transporting the excavated soil out of the construction site.

The village committee and the construction team involved in the incident responded that they did not know that it was valuable "black soil", but that it was just normal mud removal from the construction site.