Chapter 22 Trial burning

Back in his room, Mama Li picked him up and said, "The young master worked hard today, and sent a few sets of clothes to Mrs. Mencheng, which were used by Jiu Erlang and Jiu San Lang when they were children. ”

Su You said: "Mother Li is also hard, I don't pick clothes to wear." It seems that Mama Li is also an old man who is an in-law. ”

Mother Li smiled: "No, I grew up watching the two gentlemen on the other side." ”

Jiuerlang is Su Shi, Jiusanlang is Su Zhe, Jiu293 is their ranking, and the brothers often use this title in their old correspondence, which shows how big the Su family is.

Sit down at the desk, light the oil lamp, Su You took a pen and paper, wrote down the key points of today's experience and what he planned to do tomorrow, and after reading it again and feeling that there was no omission, he opened the book and began to learn.

The next morning, he got up early, Su You wrote a letter to inform his uncle of his situation in Meishan City, reassuring him, and asked him to take two sets of toothbrushes from the cabinet in his room and send two boxes of dental floss together.

After breakfast, he handed the letter to Cheng Wenying to help bring it to Kelongli, Su You and Banniang were about to go to the pottery workshop again, and Cheng Wenying called the ink foreman, that is, Lao Han, the husband of Li's mother, and Lao Yu, the engraving foreman, to discuss the matter of color printing.

Before going out, Su You had another idea, turned back to the bookstore and said to Cheng Wenying: "Uncle in-law, I thought of another idea. ”

Cheng Wenying smiled, this nephew, every idea is money, it's a little bad, it's too busy: "You say you say." ”

Su You said: "Actually, it's very simple, my nephew is thinking that we are not experimenting with movable type?" Is it possible to leave some spaces below the last edition of the overprint engraving to type movable type? ”

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

Su You said: "Yu Gong can first start carving some numbers of movable type, the color paintings are arranged into a calendar for each month, plus the solar terms, such a set of twelve color paintings are printed out to make a book, which is exactly the seasonal date of the year, and you can look through it by hanging it on the wall." In addition to the decorative function, it can also be practical, and the person who buys the painting can check what day and month it is. ”

Cheng Wenying was stunned when he heard this, and then clasped his palms excitedly: "Wonderful!" In this way, the same set of engravings can be reused every year, and you only need to rearrange the numbers below! ”

Lao Yu also smiled beside him: "It's really wonderful, the movable type typesetting is temporarily difficult, but the painting history is huge, and the number of words is small, so it doesn't need to be as fine as the book, hahaha, this can be regarded as the first movable type finished product in our bookstore!" ”

Cheng Wenying smiled like a fox eating a chicken: "The key is to sell one to sell a set, and the price will go up, Lao Yu hurriedly check which Bodhisattva's birthdays are every month, let's get this first set!" The next set will figure out the three clear six emperors and three officials, and then the twelve flower gods! ”

Su You couldn't laugh when he heard it, as long as this old man gave an idea, the next content was extremely substantial, this is all the gods and Buddhas of the heavens!

The three old men had a heated discussion with a smile, and Su You came out and went to the pottery workshop with Banniang.

The pottery workshop has its own small kiln, which is a steamed bread kiln, which is used to fire temporary small-batch customized products.

Today, Su You brought a package of marinade, nothing else is busy first, yesterday's marinated beef took out a few pieces, instructed the cook to soak in water to remove excess salt, and then rolled it with boiling water to avoid foam, and then washed it with hot water and then boiled it on low heat.

Only then do you start processing the slurry.

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

casually threw the gall pill in his hand and said to Twenty-Seven Niang: "Look at your quartz." ”

Twenty-seven Niang's face turned white with fright, and she pointed at him and jumped to his feet: "You...... You ......"

Su You couldn't help but sigh: "The secret recipe for the glaze, right?" There are two to two to five quartz powder, which is also a secret? ”

Twenty-seven Niang jumped up and blocked Su You's mouth: "Besides, I'm going to kill my mouth!" ”

Seeing that Su You no longer spoke, Twenty-Seven Niang carefully let go of her hand, leaving only a slit, ready to re-gag Su You at any time.

Su Youurn said angrily: "Okay, I won't ask anything else, I'll see if your quartz powder is made?" Maybe it's an opportunity for your home to improve the quality of quartz powder. ”

Twenty-seven Niang breathed a sigh of relief, glanced at him, and said to Shi Da: "Take the quartz powder to Xiaoyou to see." ”

The traditional glaze formula, even in later generations, is a secret, no matter how good the relationship between Su You and the non-genetic inheritors of the porcelain workshop in later generations, when the process is finished, these things will not be told to him.

But when it comes to this, Su Oil also has another artifact, an industrial formula.

The ceramics industry, especially the tile factory, was also where he often ran when he was an office clerk. Those formulas, the technical manager of the tile factory didn't bother to keep them secret, because they were all open things in the industry.

So Su You can finally know a rough idea.

Now what he feels most is that he pays attention to learning everywhere, and the cold knowledge he memorized in his work back then came in handy in the Great Song Dynasty thousands of years ago.

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

There are a lot of impurities, and the iron oxide inclusions on the surface have not been removed, which is the most primitive quartz sand.

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

At that time, the city did not waste a lot of brains in order to shut down the heavily polluted guerrillas.

They use the soil method to purify quartz powder, the method used is to stack it in the open air, pour acid liquid to expose it, use acid to turn the iron ore film on the surface of the sand into dissolved iron salt, and then let the rain wash away, the pollution can be described as terrifying.

However, sulfate hydrochloric acid is not available in Su oil now, so I have to use physical methods.

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

However, these methods are still not available at present, and can only use the soil method, that is, add water to moisten, put it into the crude ball mill mixer, use the sand to rub against each other to separate the iron ore on the surface, and then repeatedly clean and bleach, so that the water can take away the fine iron ore particles, leaving a relatively large quartz sand.

In this way, the twenty-seventh mother was already surprised, the quartz sand was so remediated by Su oil, and it can be distinguished from the color alone, and the quality is better than just now.

At this time, the beef bones, along with the jar steamers that Su You wanted, had already been burned.

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

After the jar cooled, Su You asked someone to fetch a large basin of water, boiled a bunch of straw and threw it into the jar, and asked someone to turn it over and let the mouth of the altar be immersed in water, and the mouth of the altar sucked the water to a loud sound.

This is a sign that the jar is well sealed.

There is nothing to say about the craftsmanship of the Shijia pottery workshop, they are working hard from pottery to porcelain, so there is no problem with this little stupid thing.

Su You is very satisfied with the craftsmanship of the pottery workshop, in fact, this workshop only needs to solve the problem of furnace temperature and the problem of porcelain clay glaze formula, and can immediately produce high-quality porcelain.

Su You seems to have returned to the time when he helped the intangible cultural heritage workshop to sort out the process, and he was full of energy, instructing Shi Dahe and the workers to put the Guanyin soil fine powder into the clay pot and fry it dry, and also send it to the small kiln to be fired.

This fire is not big, mainly through calcination to remove some volatile impurities.

In the end, three pure fine powders were obtained - quartz sand, Guanyin soil, and ashes.

The recipe for bone china is public, 50 percent ashes, 25 percent quartz sand, and 25 percent kaolin, which is Guanyin soil.

However, this recipe will have problems in practice, the more ashes, the better the quality of porcelain firing, but the worse the viscosity of the mud, which increases the difficulty of embryo making.

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

Considering the three kinds of soil refined by the soil method, the purity is greatly reduced, in order to be thorough, Su You is based on the standard formula, up and down to change the various proportions of the three ingredients, and then make a table out, use a small wine glass as a measuring tool, accurately prepare a variety of mud balls, and then let Shi Da take a part of each to make a small mud board, which is sent to the small steamed bread kiln in three batches and fired at three temperatures.

Low temperature, medium temperature, high temperature, in the absence of a thermometer, all rely on the kiln worker to watch through the fire eye, this skill, Su You in addition to admiration, or admiration.

The first kiln opened, and Shi Da and Twenty-seven Niang were stunned as if they were struck by lightning.