A Mouthful of Sky-high Fried Rice, Lao Tang Apprenticed on the Spot Chapter 321

  Chapter 321 Exactly the same!

  Pointing blue is actually similar to painting.

   It's just that the painting is on paper or canvas, and the dot blue is on the carcass of cloisonné.

  Fixed the bowl, Li Yi sucked up the glaze with a straw, held a blue gun in one hand, and filled the glaze with the Wanshou Wujiang bowl as a sample.

  Gold wire patterns have been made into grids. Li Yi only needs to fill the grids with the glaze from the straw, then use absorbent cloth to absorb the water, and use the blue gun to compact it.

   But Li Yi did this step very carefully.

  These glazes are all fine powders ground from some minerals.

   According to the state, they are actually sand.

  So in the dream space, the step of spotting blue is also called Shangsha by craftsmen.

  Dian blue is not just filling in the adjusted color directly into the grid, it needs to pay attention to steps.

  Glazes are all fine ore particles, which have poor adhesion and will cause discoloration during the firing process.

  So dot blue and burn blue alternately, repeat at least three times.

  The glaze used for indigo every time must be adjusted and repaired according to the effect of the previous firing to form a color gradient effect.

   After starting to click blue, Li Yi closed his mouth and stopped talking.

  This step needs to be quiet, the heart must be quiet, and the hands can be steady.

   Only when the hand is steady, the work will be clean.

  The glaze color of cloisonné must be pure and cannot be cross-colored, so when ordering blue, it is necessary to ensure that there is no glaze pollution.

  So, when ordering blue, you must be careful.

  No one spoke, everyone was infected by Li Yi's seriousness.

  Geng Wanhua and Cai Yi even held their breath, for fear of affecting Li Yi.

  Now they want to know what kind of effect Li Yi's cloisonné will have.

   Soon, after Li Yi filled the glaze for the first time, he sent the bowl tires into the kiln and started firing.

  The reason why cloisonne is called cloisonné "blue" is because its first glaze is often sapphire blue or peacock blue glaze as the background color.

  The first glaze on Li Yi was no exception.

  After sending the bowl tires into the kiln, Li Yi did not leave, but stood at the kiln entrance, staring at the bowl tires in the kiln.

  The melting point of the cloisonné glaze is probably in the range of 700-900°C.

  So Li Yi didn't adjust the furnace temperature, and kept the kiln at 800°C.

  The purpose of firing is to melt the glaze and adhere to the carcass.

  But to get the glaze to melt just right, you have to rely on the eyesight of the blue master.

   In the dream space, it took Li Yi more than seven years to learn how to burn mana before he learned how to master it.

  However, this technique is difficult and difficult, and it is simple and simple. In fact, it is to observe the reflection of the glaze.

  Once the so-called "Baoguang" appears, it proves that it has been burned.

  After the first firing was completed, Li Yi took out the bowl tire.

   Put the bowl tires into the water, he cleaned the blue tires, and dried the water with fire.

  Looking at the bowl tire in Li Yi's hand, Geng Wanhua was a little disappointed.

  Although the effect of this golden bowl tire is good, it is enough to beat the best imitation cloisonne utensils they have made in previous experiments.

  It is still incomparable with the authentic Wanshou Wujiang Bowl next to it.

  The glaze color of the authentic Wanshou Wujiang bowl, the fullness of the glaze layer, and the brightness of the color are all much stronger than those of the bowl in Li Yi's hands.

   Seeing Li Yi's operation, Geng Wanhua was stunned.

  Can the cloisonné glaze be filled multiple times?

real or fake?

   But before he could ask any questions, Li Yi filled the grid with glaze again.

  Glaze is fine ore particles, so there are many spaces between the particles.

  Although he had filled it up just now, the glaze particles melted when the blue was fired, the gaps in the space disappeared, and the glaze surface sank.

   This time, he filled more glaze into the gold wire lattice, making the glaze protrude and a little higher.

  A piece of cloisonné must go through at least three fires in the process of lighting the blue, that is, burn the blue three times.

  The first fire should be level with the silk, the second fire should be higher than the silk, and the third fire should be level with the silk.

   Therefore, after filling the glaze for the second time, Li Yi sent the bowl tire into the kiln for the second firing, which is the second fire.

  After the second fire, the glaze color in the bowl tire Jinsi grid has been basically filled.

   There are only a few small gaps in some places, but the overall glaze is already very beautiful.

   Seeing that the glazed surface of the Wanshou Wujiang bowl was almost 70% similar to the original product, Geng Wanhua couldn't help but clenched his fists, a little annoyed, as if he had been hit.

  Actually, he was indeed hit by Li Yi's operation.

  He never thought that the cloisonné glaze could be refilled!

   No wonder they tried so many times before, and the finished cloisonné products were all poor.

   Turns out it was because they only burned once!

  Why didn't they think of it?

  Geng Wanhua took a deep breath, feeling very complicated.

  If they could have thought of pointing blue many times at the beginning, maybe they have reproduced this process?

   But soon he was relieved.

  Even if they can think of multiple points of blue, they probably won't be able to reproduce it.

  The ratio of the glaze is the key. If the ratio is wrong, even making the glaze adhere to the carcass is a problem.

  In front of the camera, Li Yi has already started to replenish the blue.

  He used glaze to fill up the areas where there were still holes in the gold wire pattern grid, and then sent the bowl tires into the kiln for a third firing.

  After firing this time, all the glaze areas on the bowl body are filled, and the glaze even overflows.

  Looking at the Wanshou Wujiang bowl in Li Yi's hands, even Huang Xiaoming and the others could tell that this bowl was 90% similar to the sample bowl Li Yi put aside.

  But although it looks similar at first glance, the new bowl in Li Yi's hands is still a bit rough in terms of glaze, bowl mouth and other details.

  So, at this point, it is necessary to carry out grinding work, that is, grinding and polishing.

   Polishing is the hardest and most tiring process in the production process of cloisonne, including several steps such as stabbing, polishing, and glazing.

   Fortunately, Li Yi used a gold tire this time, which is softer and easier to polish.

  If it was a copper or silver tire, he would definitely be busy today.

  After three times of sintering, there are some prominent glaze spots on the glaze surface of the bowl tire, which need to be polished to a smooth surface.

  So, Li Yi took out a bag of emery stones, added water and vigorously polished the glaze that was higher than the tread.

  After polishing once, Li Yi used yellowstone powder to polish for the second time, grinding away the fire and black silk on the glaze.

  Finally, he used basswood charcoal powder and water to grind it again, and smoothed the glaze on the part of the surface of the finished product that was higher than the filaments, so that the filaments on the surface were exposed.

  With his final sanding done, he removed the bowl from the water, toweled it dry, and set it aside to the right of the sample bowl.

  If it is a cloisonne utensil with a copper tire, it needs to be plated with gold after polishing.

  But Li Yi was originally made of gold tires and gold wires, so this step was omitted.

  Looking at the two bowls Li Yi put together, there was a sudden gasp in the scene.

   "Fuck! Exactly the same!"

   4

  (end of this chapter)

Chapter end