Chapter 22 Test Burning

Back in her room, Li Ma received him and said: "The young master has been working hard today. Mrs. Cheng from across the street sent me a few sets of clothes that Jiuerlang and Jiusanlang used when they were young. She said that the young master should wear them first. Mrs. New Clothes

Currently in production."

Su You said: "Ma Li is also working hard. I don't have to choose the clothes I wear. It seems that Ma Li is also a person who has grown old by her in-laws."

Li Ma smiled and said: "No, I grew up watching the two husbands from opposite sides."

Jiuerlang is Su Shi, Jiusanlang is Su Che, and 9293 is their ranking. The two brothers often use this title in their correspondence when they are old, which shows how big the Su family is.

He sat down at the desk and lit the oil lamp. Su You took a pen and paper and wrote down the key points of today's experience and what he planned to do tomorrow. After reading it again and feeling that there were no omissions, he opened the book and started studying.

The next morning, Su You got up early. He wrote a letter to inform his uncle about his situation in Meishan City, to reassure him, and to ask him to get two sets of toothbrushes and two boxes of dental floss from the cabinet in his room.

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After breakfast, he handed the letter to Cheng Wenying and asked someone to take it to Kelongli. Su You and Baniang were going to the pottery workshop again. Cheng Wenying called the ink-making foreman, Lao Han, Li Ma's husband, and the engraving foreman Lao Han.

So, we discussed color printing.

Before leaving the house, Su You had another idea. He turned back to the bookstore and said to Cheng Wenying, "Uncle-in-law, I have another idea."

Cheng Wenying laughed. This nephew's every idea is money. The only drawback is that he is too busy with things: "You say what you say."

Su You said: "It's actually very simple. My nephew is thinking, aren't we experimenting with movable type? Can we leave some space below the last version of the overprinting engraving for movable type?"

Cheng Wenying was a little confused: "What's the use?"

Su You said: "Yu Gong can start by carving some digital movable type, and arrange the colored paintings into a calendar for each month, and add the solar terms, so that a set of twelve colored paintings can be printed into a book, which will be exactly one year.

The seasonal date can be hung on the wall so you can look through it. In addition to its decorative function, it is also practical. People who buy paintings can check which month and day it is today."

Cheng Wenying was stunned for a moment, then clasped his hands together excitedly: "Wonderful! The same set of engravings can be reused every year. You just need to rearrange the numbers below!"

Old Yu also laughed beside him and said: "It's really wonderful. It's difficult to arrange books with movable type for the time being. But the calendar is huge and the number of words is small, so it doesn't need to be as detailed as a book. Hahaha, this can be regarded as the first in our bookshop."

Finished movable type!"

Cheng Wenying smiled like a fox that got the chicken: "The key is that selling one piece becomes selling a set, and the price goes up. Lao Yu quickly checked which Bodhisattva birthdays are held every month. Let's get this first set! Next

In one set, we can create the Three Pure Ones, Six Royal Guards, Three Officials and Great Emperors, and then the Twelve Flower Goddess!"

Su You couldn't stop laughing when he heard this. As long as the old man gave him an idea, the content that followed would be so fulfilling that all the gods and Buddhas in the sky would be included!

As a result of the three old men having a lively discussion with smiles on their faces, Su You came out and went to Taofang with Ba Niang.

Taofang has its own small kiln, which is a steamed bun kiln, used for firing temporary small batches of customized products.

Su You brought another pack of marinade today, so I won’t be busy with anything else. I fished out a few pieces of beef that was marinated yesterday, and instructed the cook to soak it in water to remove excess salt, and then boil it in boiling water to avoid foaming.

Then wash it with hot water and put it in a pot over low heat.

Then start processing the mud.

Before processing, the beef bones are taken and sent to a small kiln for firing.

He tossed the bile pills in his hand casually and said to Twenty-seventh Niang: "Look at your quartz."

Twenty-seven mother was so frightened that her face turned pale, she pointed at him and jumped up and down: "You... you you..."

Su You couldn't help but sigh: "The secret recipe for the glaze, right? It contains 20% to 25% quartz powder. Is this also a secret?"

Twenty-seven mothers jumped up and blocked Su You's mouth: "If you say anything else, I will silence you!"

Seeing that Su You stopped talking, Twenty-Seventh Mother carefully let go of her hand, leaving only a gap, ready to gag Su You again at any time.

Su Young said angrily: "Okay, I won't ask anything else. I just want to see if your quartz powder is ready? Maybe this is an opportunity for your family to improve the quality of the quartz powder."

Twenty-seven mothers then breathed a sigh of relief, rolled their eyes at him, and said to Shi Da: "Bring the quartz powder to Xiaoyou for a look."

The traditional glaze formula will remain a secret even in later generations. No matter how close Su You is to the intangible inheritors of later porcelain workshops, others will not tell him these things when he is sorting out the craftsmanship.

But here we are, Su You has another artifact, the industrial formula.

The ceramic industry, especially the ceramic tile factory, was where he often went when he was an office clerk. Those formulas and the technical manager of the ceramic tile factory were too lazy to keep them secret from him, because they were all publicly available in the industry.

So Su You at least has a rough idea.

What he feels most deeply about now is that there is knowledge everywhere, and the knowledge he memorized at work was actually put to use in the Song Dynasty a thousand years ago.

The beef was marinated for two-quarters of an hour. Su You asked the cook to pick up the pot and put it aside. The meat continued to soak in it, and then turned around to check the quartz powder that Shi Da had brought.

There are quite a lot of impurities, and the iron oxide ore coating on the surface has not been removed. This is the most primitive quartz sand.

The treatment method is actually very simple. Meishan is rich in mineral resources, and there are countless small businesses and factories in later generations.

At that time, the city spent a lot of effort to shut down those guerrilla groups that polluted seriously.

They use local methods to purify quartz powder. The method they use is to stack it in the open air, pour acid solution and expose it to the sun. They use the acid solution to turn the iron ore film on the surface of the sand into soluble iron salts, and then allow it to be washed away by rainwater. The pollution is terrifying.

However, Su You didn't have sulfate and hydrochloric acid at the moment, so he had to use physical methods.

There are also many physical methods, such as adsorbing iron ore through magnetic poles, or using grease to make quartz powder float and the iron ore powder sink.

However, these methods are still unavailable at the moment. We can only use the local method, which is to moisten it with water, put it into a crude ball mill mixer, use the friction between the sand to separate the iron ore on the surface, and then repeatedly wash and rinse the bleaching water to let the water take away the fine iron.

ore particles, leaving relatively large quartz sand.

Just like this, Erqi Niang was extremely surprised. The quartz sand was treated with Suyou in this way. You can tell just from the color that the quality is not a bit better than before.

By this time, the beef bones, as well as the jars and steam pots that Su You asked for, were already cooked.

Let Shi Da direct the workers to grind the cow bones into ashes, while Su You went to inspect the kimchi jar he designed.

After the jar cooled down, Su You asked someone to fetch a large basin of water, burned a bunch of straw and threw it into the jar. He asked someone to turn it over and let the mouth of the jar be immersed in the water. The mouth of the jar sucked up the water and made a booming sound.

This is a sign that the jar is well sealed.

There is nothing to say about the craftsmanship of Shijia Pottery. They are working hard from pottery to porcelain, so there is no problem at all with this clumsy thing.

Su You was very satisfied with the craftsmanship of the pottery workshop. In fact, this workshop only needed to solve the problems of furnace temperature and porcelain mud and glaze formula, and it could produce high-quality porcelain immediately.

Su You seemed to be back when he was helping the intangible cultural heritage workshop sort out its craftsmanship. Full of energy, he instructed Shi Da and the workers to put the fine powder of Guanyin soil into a clay pot, stir-fry it dry, and send it to the small kiln for firing.

This fire is not big, and it mainly removes some volatile impurities through calcination.

Finally, three types of pure finely powdered quartz sand, Guanyin soil, and ashes were obtained.

The formula of bone china is public, it is 50% ashes, 25% quartz sand, and 25% kaolin, which is Guanyin clay.

However, there are problems with this formula in practice. The more ashes there are, the better the quality of the porcelain will be, but the viscosity of the mud will be worse, which increases the difficulty of making embryos.

In addition, the shrinkage ratio will be larger during firing, and the porcelain will be easily deformed, resulting in a lower success rate.

Considering that the purity of the three kinds of soil extracted by local methods was greatly reduced, for the sake of comprehensiveness, Su You used the standard formula as the basis, changed the various proportions of the three ingredients up and down, and then made a table and made it with a small wine glass

Using measuring tools, he accurately prepared various clay balls, and then asked Shi Da to take a part of each to make small clay tablets, which were sent to the small steamed bun kiln in three batches and fired at three temperatures.

Low temperature, medium temperature, and high temperature were all determined by the kiln workers looking through the fire eye without a thermometer. Su You not only admired this skill, but also admired it.
Chapter completed!