After five or six days, the brick-built crucible melting cellar has been built, the special graphite-free crucible made in the porcelain workshop has also been dried, and the quartz, limestone, soda ash, feldspar, etc. that Li Zhi ordered to collect have also been piled up in the storage room.

All the craftsmen are standing aside and ready to go, these are some craftsmen who are more experienced in glass making.

Li Zhi saw that everything was ready, and with an order, the craftsmen began to add wood, unlike steelmaking, Li Zhi did not choose coke for firing liquid glass, but used charcoal, because the temperature of coke is too high, and it can reach up to 2,5600 degrees.

The raw material to the glass liquid only needs to be heated at a high temperature of 1,550 degrees to 1,600 degrees, so the coke temperature is too high, because the glass liquid must be uniform, no bubbles, and meet the molding requirements to be considered successful, the temperature is too high It is easy for the glass liquid to be too thin, not easy to clump, and it is not easy to provoke blowing.

Fortunately, Zhao Jiujiang found some exquisite glass craftsmen, all of whom were good hands, so the raw materials in the furnace turned into liquid glass after a while.

Li Zhi stepped forward to check, and sure enough, it was full of red-hot liquid.

Once liquid glass is formed, the shape of the glass depends entirely on manual blowing. And this step is a more critical step in the production of glassware, because the temperature of liquid glass is too high to blow, and it is not like any air compressor in later generations, Li Zhi can only blow with his mouth, put on a mold, and then blow with an iron pipe, and there is no need to worry about the forming problem.

"Give me the blowpipe!" Li Zhi said to Zhao Jiujiang.

After hearing this, the latter hurriedly handed over an iron pipe about one meter five long from his hand, this iron pipe was a hole drilled by the drilling machine studied by Li Zhi's craftsman a few days ago, and the effect was okay, but the damage to the knife head was still not small.

After taking the blowpipe, Li Zhi was also engaged in this thing for the first time, and he was inevitably a little nervous, and then took a sharp breath and picked out a ball of red-hot liquid glass from the furnace, which was viscous and thick, and quickly picked up and rolled the liquid glass, not letting it fall is also to make it more even.

After seeing that its shape was a little stable, Li Zhi quickly put his mouth on the iron pipe, and then blew into it, only to see a bubble bulging in the glass liquid mass, and after a few times, the bubble became bigger, and saw that some could not be blown, and then put it in the furnace to use the high temperature to soften it slightly and then blow it again, and finally saw that it was almost there, and immediately put it into the mold, and continued to blow, while blowing and rolling, and soon filled the entire mold.

After a little annealing and cooling, the mold was removed, and a round-bottomed glass bottle was born, Li Zhi couldn't help but be a little disappointed when he saw it, he was never a professional, this craft is not good~

laughed and scolded: "Blow it up, blow it up."

But when Li Zhi looked at everyone with an embarrassed face, he found that all the craftsmen present were looking at the round-bottomed glass bottle with an incredulous face.

The craftsmen exclaimed again and again, and the worship of Li Zhi was more respectful, there was a new crucible steelmaking method after the frying steel and 100 steel, and now there is a colorless transparent glass after the colored glaze, Li Zhi's various amazing inventions have made many craftsmen extremely worshipful of this.

"Uh... You've all seen it, it's the process of blowing glass, you're all there? Director Zhao, you organize them to slowly practice blowing glass, and then teach some people how to refine liquid glass, according to the confidentiality outline! Li Zhi is talking about different steps operated by different craftsmen to ensure the confidentiality of the process, so Li Zhi designated a compendium for this purpose, which is implemented in every department of the Foundry Bureau.

In this era, there is no intellectual copyright, as long as you have craftsmanship, you can pirate anything, Li Zhi doesn't want to work hard to get something, and the next day it will be all over the world.

After listening, Zhao Jiujiang began to organize craftsmen to start learning, and he was the first to start blowing, fortunately, the drilling machine has produced a lot of steel pipes in the continuous debugging in the past few days, although it is a little rough, but it can also be used, so the remaining craftsmen have also picked up steel pipes to practice blowing.

Li Zhi stood aside from time to time to point, although Li Zhi did not blow well, but rich in theoretical knowledge, under his guidance, at the end of the day, the original red glass liquid in the furnace has bottomed out, of course, the effect is still there, a large number of glass waste on the ground, but there are a few very successful glass bottles on the side, crystal clear, Li Zhi also praised it when he saw it, and sure enough, he still has a specialization in the art industry.

"Oh my God, I promise it's the best glass I've ever seen."

"It's not glass, Your Highness says it's called glass," retorted a craftsman with a good memory.

"This is even brighter than the luminous cup~ It's amazing"

The craftsmen exclaimed and praised the operation one after another.

The success rate of these craftsmen blowing glass bottles is actually not high, and the main reason for the success of two or three out of ten is that the blowing skills are not skilled, which has no other way but to contact more skills, and Li Zhi does not think that these craftsmen who have never been in contact with them can succeed again and again, this success rate is already very ideal.

"Director Zhao!" Li Zhi saw Zhao Jiujiang standing not far away holding a glass bottle and praised it, so he quietly walked to the side and said.

Zhao Jiujiang, who was immersed in his own world, was startled when he heard the voice, and thought that it was a craftsman who was about to scold, and quickly came back to his senses and found that it was Li Zhi, and asked respectfully, "I don't know what His Highness commands." ”

"Does this glass bottle look good?" Li Zhi asked interestingly.

Zhao Jiujiang was stunned for a while, his face was full of embarrassment, and he said stupidly: "Your Highness, don't make fun of humble duties, such a divine object is unheard of~"

"Haha, okay, this king is down to business, there must be something important to find you, this king ordered you to find a larger shed in the casting bureau, and ordered the formation of a new glass workshop, like this melt cellar to build a few, and put more crucibles together, in order to ensure the output of liquid glass, craftsmen, you recruit yourself, first blow a batch of glass tubes and bottles according to the requirements of this king, or that sentence is implemented according to the confidentiality program, we must pay attention to the selection of craftsmen, to ensure the credibility of each craftsman, This glass will be another major source of our economy after steel, which cannot be ignored! ”

"Yes!" After hearing this, Zhao Jiujiang also knew the importance of this glass, and hurriedly agreed.

After staying in the house for a while, and seeing that it was getting late, Li Zhi beckoned his subordinates to prepare a carriage to return to the palace, accompanied by a perfectly made glass bottle.

I've always hated the carriage of this era, and I want to vomit when I shake it up... But fortunately, I have slowly gotten used to it, and I really miss rubber tires, but with the current zero-based chemical industry level, it is completely utopian, so Li Zhi had no choice but to give up, and his heart was more determined to step up the preparation of the chemical laboratory.

After a while, he finally returned to the palace of King Xin, and the little man guarding the door saw Li Zhi come back and opened the door respectfully, and then stopped talking...

Li Zhi saw that he was a little strange, so he asked, "But what's the matter?" ”

When the little guy saw Li Zhi asking, he said, "Go back to Your Highness.. That one.. The Qingci girl came, in His Highness's room, and said that she was waiting for Your Highness to come back. ~”

Li Zhitou is big, why did this aunt come here so late... Suddenly, there was a cold feeling in my back, and then my heart hardened, why should I be afraid of her? I'm the prince, does she dare to beat this king...

The naïve Li Zhi has forgotten the tragic days when he was beaten before, and it can be said that he forgot the pain after the scars.

......

Outside the bedroom, I saw a figure quietly squatting outside the door, holding a piece of grass in his mouth, a little helpless...

"Shall I go in or not..."

Just when Li Zhi's heart fell into the battle between heaven and man...

The patrolling guards happened to come over, and when they saw a figure outside the door, they hurriedly shouted: "Who is it!" And quickly rushed over and blocked Li Zhi's way with a spear.

Li Zhi is confused, can't I even do it outside my room...

"Ahem. . . It's the king! ~" Li Zhi slowly stood up and said a little embarrassed.

After seeing Li Zhi's face clearly, the patrol guard said in panic: "Ah! ~Your Highness forgives your sins... I don't know if His Royal Highness is squatting.. . He paused as he spoke.

Li Zhi's face darkened, feeling that the guard had misunderstood him, and was about to explain, but he saw the guard run away as soon as he slipped away.

"Your Highness, I'm on patrol...."

At this time, there was such a big movement outside, which had already alarmed the people in the room, and suddenly the door opened, and Li Zhi, looking at the figure, suddenly ... Like a dream...