What does Ru porcelain open mean, what does Ru kiln open mean

The opening is a natural cracking phenomenon of the glaze of porcelain. There are two reasons for cracking: one is that the billet mud extends in a certain direction during molding, which affects the arrangement of molecules; Second, the expansion coefficient of billet and glaze is different, and the shrinkage rate of the glaze layer is large when cooling after roasting.

Therefore, cracking was originally a disadvantage in porcelain firing; However, people have mastered the law of cracking and made the open glaze (i.e., crack glaze), which has become a special decoration for porcelain. The Ru, Guan, and Ge kilns of the Song Dynasty all have this kind of product. The opening piece is also known as ice crack, according to the color of eel blood, gold wire iron wire, light yellow caviar pattern, according to the shape of the net pattern, plum pattern, fine broken pattern, etc.

There are two reasons for cracking: one is that the billet mud extends in a certain direction during molding, which affects the arrangement of molecules; Second, the expansion coefficient of billet and glaze is different, and the shrinkage rate of the glaze layer is large when cooling after roasting. Therefore, cracking was originally a disadvantage in porcelain firing; However, people have mastered the law of cracking and made the open glaze (i.e., crack glaze), which has become a special decoration for porcelain.

The Ru, Guan, and Ge kilns of the Song Dynasty all have this kind of product. It is most famous for the products of the Song Dynasty kiln. The opening piece is also known as ice crack, according to the color of eel blood, gold wire iron wire, light yellow caviar pattern, according to the shape of the net pattern, plum pattern, fine broken pattern, etc.

The opening glaze can be divided into two categories in the production: one is the filling type, which fills the firing glaze cracks with soot, etc., and the texture is black; It can also be filled with colorants such as copper sulfate in the cracks, which has a brownish-green pattern. The other type is the covering type, which is covered with a layer of color glaze on the bottom glaze after roasting, and then roasted again, showing cracks, revealing the color of the bottom glaze.

According to the sparse cracks and different graphics, the opening pieces are called ice cracks, caviar patterns, garbage crushes, crab claw patterns, cow hair patterns and eel blood patterns.

Hundreds of garbage crushed garbage is a kind of ice crack, that is, the crack glaze has dense lines and relatively fine pieces. This name originated from the Song Dynasty's brother kiln, and the Jingdezhen kiln imitated the brother kiln, which has been used.

Ru porcelain opening is one of the necessary characteristics of Ru porcelain itself, there are inner opening pieces, middle opening pieces, outer opening pieces, according to the value of the internal opening is the most ideal, really Ru porcelain has the necessary characteristics.

Ru kiln opening refers to a magical natural phenomenon produced by high-temperature firing in the kiln and natural cooling, which is difficult to control by man, and is God's love for Ru porcelain.

There are two types of openings in Ru kilns: one is natural opening during use, and the other is artificially opened during firing. Naturally, a kind of tea is generally used to be carefully patted, and most of the color is used to choose Tieguanyin or Pu'er, note:

Remember that it must be fixed a cup of tea and buy a pot pen for Cong Xiao Li.

On the second day, moisten the rim of the cup with tea broth and keep it dry and hygienic. Ru kiln is a high-temperature glaze, which has to go through two firings, the first time is a plain tire, and then the glaze is fired before the finished product.

The fetal soil and glaze will shrink when leaving the kiln, and the craftsmen accurately calculate the shrinkage difference to form the opening piece, there are many kinds of opening lines in the Ru kiln, ice cracks, caviar patterns, cicada wing patterns, etc., of course, there are also non-open pieces.

About the time when the kiln opened

Ru kiln tea ware needs a process, fast half a month, slow half a year, but also depends on the frequency of personal use, generally in about three to five months to achieve a good opening effect.

The newly purchased unused Ru porcelain tea set can be stored in a ventilated and dry elegant room, and the last point is that it is proud of drinking tea and using it often, and it is ashamed to be idle. In fact, it is not difficult to raise a beautiful Ru porcelain tea ware with a normal heart to drink tea late.

Summary. From the point of view of technology, it will be more difficult to fire in the Ru kiln without opening the piece.

Chip opening is a phenomenon of Ru kiln, and there are two reasons for cracking: one is that the billet mud extends in a certain direction during molding, which affects the arrangement of molecules; Second, the expansion coefficient of billet and glaze is different, and the shrinkage rate of the glaze layer when cooled after roasting.

Will the Ru porcelain that does not open the piece open the piece later?

From the point of view of technology, it will be more difficult to burn the chain system of Ru kiln without opening the piece. Slice opening is a phenomenon of Ru kiln, and there are two reasons for cracking: one is that the billet mud extends in a certain direction during molding, which affects the arrangement of molecules; The second is that the expansion coefficient of billet and glaze is different, and the shrinkage rate of the glaze layer when cooled after roasting.

Pro, generally will open the piece, the opening is caused by the different shrinkage ratio of the glaze, when this is the same, it will not be opened.

Summary. Wait a minute, dear.

Wait a minute, dear.

Looking for answers for you.

Because the better this imitation Ru kiln cup, the longer it will take to open the piece.

Out of these stripes, I can't see the lines when I hold a flashlight and turn on the light, will I continue to open the film in the future?

Dear, can you tell me what your usual method of opening the film is?

I usually drink old white tea and shengpu, and I wash it with water every day after use, and then put it on the tea table.

Is the temperature of the clear water high.

The temperature is not high, warm water.

That's fine. This one will go on.

However, you should not usually boil it directly with tea.

In the case of my cup, you estimate how long it will take, the cup should be fine.

There have been a few stripes in half a year, and if the usual frequency is high, it should take another two months to achieve an obvious effect.

The cup is no problem.

Can you take a picture of it?

You can now increase the frequency of raising cups than before.

Take advantage of the fact that there are already a few stripes.

The main differences are as follows:

1. In the form of opening pieces: Ru kiln porcelain has very fine pieces of grain throughout the body, like ice cracks, crab claws, commonly known as "crab claw patterns", with open pieces; The kiln is basically caviar, and there are many small white cracks on the glaze, and the lines are staggered;

2. In terms of the color of the opening piece: the color of the Ru kiln is light and elegant, and the glaze is changeable, and the azure color is preferred; The glaze color of the kiln is mainly green, but the shades are different, and there are also yellow and lilac porcelain;

3. In terms of the motivation for opening: the opening of Ru kiln is not artificial, and the defective products will have a grain opening, and the best smooth and untextured film; The kiln is deliberate, mainly with broken grain opening for beauty.

Ru kiln without lines is the best! Therefore, the opening of the Ru kiln was not intentional; Defective products will have a grain opening; The best smooth without lines and no sheets! And the kiln is deliberate, mainly with broken grain opening for beauty! There is a fundamental difference in meaning and form between the two.

The opening of the Ru kiln is basically the same, the characteristics of the kiln are not gold wires, thin gold, thick black, and you should not be able to afford any kind of complete utensils, Brother Song, Song Ru.

Before answering this question, I will briefly explain the principle of Ru kiln opening. The structure of Ru kiln ware is mainly composed of two parts: "glaze layer" and "blank". Ru kiln glaze layer and Ru kiln blank have good thermal expansion and contraction performance, but the performance of this thermal expansion and cold contraction, there is a difference in the "strength and weakness", in order to grasp the difference in the strength and size of this thermal expansion and contraction, we use the value of "tensile coefficient" to express it.

When the thermal expansion and contraction performance of the glaze layer of Ru kiln is weaker than the thermal expansion and contraction performance of the blank, there is a gap in the tensile coefficient between the glaze layer and the blank, and under the effect of this "gap in the tensile coefficient", the glaze layer is cracked by the tensile force of the thermal expansion and cold contraction of the blank, so the phenomenon of glaze cracking is formed, which is what we often call the opening piece.

Azure glazed sunflower wash.

The opening based on the Ru kiln is achieved and completed by relying on the tensile force gap between the glaze layer and the blank. Therefore, the opening of the Ru kiln depends on the change process of "temperature rise and fall" in order to promote the generation of thermal expansion and cold contraction between the glaze layer and the blank, and to have the "tensile coefficient gap" between the two.

Therefore, the opening process of Ru kiln ware is not produced in the firing process, but in "when the temperature difference changes when the kiln is released" and "when the temperature difference changes in the later use process", the phenomenon of opening can be produced.

Green Ru kiln lotus cup.

The opening pattern is a kind of cracking phenomenon on the glaze surface that is constantly formed during the firing process of the furnace fire or after the kiln due to the different expansion coefficients of the tire and glaze heating and the squeezing of the porcelain in the firing process. And since the kiln is released, it will slowly continue to open with the precipitation of time. Therefore, the large and small pieces of Ru kiln are changed due to the length of kiln time and the staggered changes of cold and heat in the natural environment.

Green Ru kiln lotus cup.

The opening of the Ru kiln is very unique, and it is also as rich and colorful as the glaze of the Ru kiln, and the ancients left a lot of titles, and the image, such as caviar pattern, ice crack, crab claw pattern, fish scale pattern, etc., the opening of the Ru kiln is closely related to its unique process and formula. Ru kiln lime glaze, glaze thin and uniform color, and agate into the glaze, the glaze is warm, jade texture is strong. When the kiln is out of the kiln, there is a large opening (hereinafter referred to as the main line), and after the kiln is still opened, it continues to open, but it is a small opening.

Both are very good, but you still have to choose according to your hobbies, and the texture will look better if you have a large film.

Blockbuster bar, because I think blockbuster is more convenient, time-saving and labor-saving.

Ru kiln naturally opens in the process of use. The formation of the opening piece begins with a kind of glaze surface defect produced by the utensils under high temperature roasting, which is called "glaze collapse" in the jargon. The glaze opening is relatively fine, mostly obliquely cracked, and the depths are intertwined and overlapped, giving people a sense of orderly layering.

Normal use of tea to start raising the cup, drink tea naturally every day, do not raise the cup for the sake of opening the cup, the cup is the first choice to raise the clean, the opening is even, the shape of the opening is good, the more moist the better, the cup inside and outside the cup at the same time open the piece is good, in the process of raising the cup, use more tea to pour its appearance.

Fixed a kind of tea to raise, generally choose a heavy color such as Tieguanyin or Pu'er, remember that it must be fixed a kind of tea to raise a cup.

Buy a pot pen, moisturize the edge of the cup during tea drinking every day, and generally there should be an opening for more than a month.