This step is glass melting, in order to obtain a uniform, transparent and pure glass liquid to prepare for forming. There are five more steps in the melting stage, and there is no obvious boundary between these steps. Often, before one process is finished, the next process begins.

The first step is the silicate formation stage. This stage is generally between 800 and 1,000 degrees, and the ingredients undergo a series of chemical, physical, physical and chemical changes. The main changes are the powder material being heated, evaporated by water vapor, salt decomposition, polycrystalline phase transformation, component melting, solid phase reactions carried out by quartz sand and other components.

The temperature has just risen now, and this process is underway, and it has not melted. Chen Laoshi has preconceived ideas and thought it has melted. When he shouted, everyone has such momentum.

Yang Sixu was pulling the bellows. When he heard this, he could no longer hold back. He put down the bellows and ran over to take a look. He was surprised: "It really melts! Awesome!"

Li Longji's insight was amazing and frowned: "Don't talk nonsense, there's nothing but melting, it's stronger."

The first stage will not melt, and will form sintered substances of silicate and free silica, which are opaque and tighter. Li Longji's words are at the heart.

After saying this, everyone saw clearly and asked in a lingering manner: "It's all like this, can it be burned?" In their impression, it was rare to burn the stone like this, beyond their imagination.

"It's almost done." Chen Wanrong was very satisfied with being able to heat up to a high temperature of thousands of degrees under the current circumstances, and looked at the sintered object with great enthusiasm and said, "It will start to melt in a while."

Although everyone doesn't understand what melted, they are not in the mood to pursue it now. It is justified to be optimistic about the changes in the crucible. If you miss a small detail, it will be a huge loss, which is a pity.

Wang Maozhong's interest increased greatly, and he strode over and said, "I'll pull it!" He grabbed the pull rod and pulled it hard, and laughed out loud in the stove hole.

"I'll add coal!" Chen Zairong volunteered to come to the stove and put a lot of coal in: "If you need to add more, it's all!" After adding coal, he trotted back and looked at the crucible, as if he was afraid of missing a detail.

At this time, everyone felt nervous. No one spoke and breathing could be heard. Chen Wanrong was also nervous. What he was most worried about was that the crucible could not withstand this high temperature. Although it was nothing now, the temperature would be higher in a while, and it might deform and crack. If that were the case, all the previous efforts would be wasted.

Time passed silently, the opaque sintered objects began to sink, and transparent liquid appeared in the crucible. Chen Wanrong couldn't help but feel excited and shouted: "It's done!"

"Look, it's really melted!" Everyone started to talk and pointed at the crucible, and was extremely surprised. They had never refined steel or iron. The first time they saw them burning the stones was beyond their imagination. They would not be surprised.

Li Longji's observation ability was much stronger and he kept nodding: "Transparent, like water. Manager Chen, can this thing make an amber cup?" Although Li Longji was extremely smart, he just wanted to make a wine glass that was as transparent as water into a wine glass, but it was still difficult for him to understand, after all, this was beyond his understanding.

"Don't worry, if nothing unexpected happens, it will definitely be true!" Chen Wanrong said without doubt.

Li Longji looked at Chen Wanrong and asked, "What's the accident? Is there a way to deal with it?"

Chen Wanrong said with concern: "What I am most worried about is that the crucible will be deformed and cracked. If this is the case, it will not be possible. If there is graphite, it can be made to make a more resistant crucible, which will be foolproof."

Porcelain crucibles generally can only withstand high temperatures below 1,200 degrees, and it will be very troublesome to exceed 1,200 degrees. The temperature of glass liquid formation is around 1,200 degrees, which is the current temperature. This has entered the second stage.

Looking at the crucible, fortunately, there was no deformation or cracking. Chen Wanrong breathed a sigh of relief and still did not dare to take it lightly, because the temperature behind was even higher, which was the real test.

Li Longji looked at the crucible and asked, "What is graphite? Where can I find it? Tell me, I can send someone to help you."

Chen Wanrong heard these words and was happy in his heart. If he wanted to make glass, he had to use graphite. He didn't know where he could find them. If Li Longji took it seriously, he would have achieved twice the result with half the effort: "Thank you Prince!"

"But let's talk first! I helped you, what are my benefits?" Li Longji showed his shrewd side and suffered a loss at all.

The prince was actually concerned about such small profits. If Chen Wanrong hadn't heard it with his own ears, he really didn't believe it. He just heard Li Longji continue: "I am the prince, it's okay to help you, but these things must be beneficial to the court. If there is no benefit, I can't help. Even if it's just a word, I won't say it, it's illegal."

Originally, Chen Wanrong wanted to give you something, glass products would definitely be popular in the Tang Dynasty, and he would definitely like it, but he didn't expect that he would actually bring out the rules. Chen Wanrong thought for a while and said, "Forget it, the prince will not work!"

What a great opportunity, it's gone. Chen Zairong, Yang Sixu and the others were very sorry. Gao Lishi couldn't stop winking at Chen Chaorong, meaning he wanted him to take back his words.

Li Longji looked at Chen Wanrong in surprise, with a look of praise, and smiled: "Okay! If it were someone else, he would definitely have issued a long list of treasure names and let me choose. The words of this prince are worth tens of thousands of taels of gold. Are you planning to give up?"

"The prince is to maintain the laws and regulations, and I just don't want to do it anymore." Chen Wanrong said the truth.

Now Li Longji is thinking about how to restore the great cause of Emperor Taizong of Tang, and acts with laws and regulations everywhere, thinking about everything for the court. He pondered for a moment: "Since this is the case, I don't have anything to say. Otherwise, tell me again, is there any other use for glass besides making wine glasses? If it is beneficial to the country and the people, I will help you once. If it is just making wine glasses, don't say it."

If you want to drink, you can do whatever you want. You don’t have to have a glass of wine. If glass only has one use, it is a luxury. Now he tries to avoid luxury and is frugal, so he will naturally not do anything.

"The prince didn't know that glass is very useful. In addition to making wine glasses, it can also be used to repair houses. It goes without saying that the house is dry and ventilated, but also because of good light and good for the people. More importantly, this is the tool I want. With glass, I will make more things." Chen Wanrong explained one by one. Only with glass can a laboratory be built and chemical industry develop in the direction of vehicle-based development.

Li Longji did not speak immediately, but thought for a while before saying, "The things you make are good. Although soap is good, it just can't be used for the common people. It's just that rich people are cheap, not counting. Alcohol is good, and it is beneficial to save lives and heal the wounded, but that's all. Manager Chen, if you can make something like alcohol again, I'll help you."

There are too many chemical products that are beneficial to the people, and you can even talk a lot with your eyes closed. Chen Wanrong smiled and said, "Prince, if this soap is alkaline enough, what's the harm in making it for ordinary people? To have more alkaline, you have to have glass. With glass, other things can be better controlled and easier to make." Analysis is inseparable from glass, this is the truth.

"Take it seriously?" Li Longji was very interested in this: "If soap can be used by the people, then the people will suffer from less illnesses, which will benefit their bodies."

Chen Wanrong was convinced by his unique vision. If his personal hygiene is done well, it will naturally be beneficial to health. Soap is of great benefit, otherwise soap will not be widely popular in modern society.

With the laboratory, everything else is easy to say. Chen Wanrong nodded and said, "The prince is wise, how can I lie to you?"

"There is no hurry to do this. Just tell me to know when you arrive in Chang'an. It's best to explain where it is. I'll just send someone to pick it up." Li Longji said lightly.

If Chen Wanrong had known where graphite was, he would have got it long ago. The problem was that he didn't know where to find it. If he had just bought a graphite crucible in modern society, he would have been so troublesome. "Prince, I haven't had time to go to Chang'an during this period."

"You have to take some time if you don't have time. My father wants to see you." Li Longji asked back: "You don't want your father to come to you?"

It is not necessary to think that Ruizong thought that the official position given to Chen Wanrong was not worthy of his merits, so he had to thank him in person. This was a good thing, and there was no reason to refuse. He hurriedly said, "The prince is so serious, I am just a fool, how dare I? It's just that the emperor wants to see me, I really don't dare to be it."

"If you are not worthy of it, your father will make a clear decision!" Li Longji said in an unquestionable tone.

The emperor asked for a name to see Chen Wanrong. Although this matter was a great thing, it was too unexpected. Chen and his wife were stunned for a while before they came to their senses, and asked repeatedly: "Really? Really?"

Zheng Qing hurriedly touched Mrs. Chen and whispered: "Auntie, of course it's true! You don't have any jokes!" Mrs. Chen spitted out a long list of oh-oh sounds.

Although Zheng Jianqiu and his wife didn't understand what happened between Chen Wanrong and Ruizong, it was a great thing after all, and they were very excited. Zheng Jianqiu couldn't help but touch his beard.

As he spoke, a sound of thumping sound was made in the crucible, and from time to time, the material liquid splashed out. Even if it was a little bit, it would make a hissing sound on the ground. The smoke was so loud that it would be a big hole.

"What's wrong?" Li Longji asked in confusion: "It's just a little splashing out occasionally, and now it's so much."

Chen Wanrong rubbed his hands and said excitedly: "It's almost done. Hurry up, use some strength to pull the bellows, I'll add coal." He trotted to the stove, grabbed the coal blocks, and skillfully threw them into the stove hole.

Chen Zairong took the pull rod from Wang Maozhong and pushed it hard: "Brother, are there any special requirements?"

"That's natural! Now you must increase the heat, otherwise it will splash a lot." Chen Wanrong nodded suddenly and reminded him: "Don't get close. Stay away."

After the sintered substance melts, the viscosity is relatively large and viscous. At this time, when various components are decomposed in large quantities, a large amount of gas will be released. The escape of gas will inevitably bring out the discharge liquid, which will quickly increase the temperature, which will help reduce the viscosity of the liquid and facilitate the escape of gas.

The splash was so powerful that even Chen Wanrong didn't say it, they didn't dare to get close. Chen Wangshi smiled and said, "Wanrong, don't worry, it's not a pig, who would go up?"

Chen Laoshi touched her and said something inappropriate: "Woman, what are you talking nonsense? Isn't this a prince?" Fortunately, Li Longji was easy-going and had no driver, otherwise Chen Laoshi wouldn't dare to speak like this.

Li Longji shook his hand and said, "Uncle, don't worry, I'm not that scrupulous." At this time, Li Longji was ambitious and devoted himself to being a saint, so he would not care about the mistakes of a single word.

Chen Laoshi almost jumped up, his eyes wider than those of a cow: "Prince, aren't you going to break me? I can't stand it."

Li Longji laughed and was extremely cheerful: "Okay, I won't call you uncle. As soon as I meet, I will be ashamed of the prince, and I will write the prince one by one. And you will always be a gangster, so don't you bother?"

If he really screamed that, it would be awkward to death. Chen Chen touched his forehead and answered speechlessly. Li Longji continued: "This is not above the court, nor is it an official office, so there is no need to use those official titles."

"Thank you, Prince!" Chen Laoshi's eyes were very bright, and its brightness was almost as bright as the sun in the sky. Is there anyone more glorious about my uncle?

Chen Wang pinched his back and said softly: "Old man, look what you can do." He accidentally saw that the sun was at the height of the sky and shouted: "It's over, I forgot to cook! What's the food now?"

As soon as she spoke, the hired workers remembered that there was still work to do, and hurriedly apologized to Chen Wanrong: "Boss, we forgot, don't be surprised."

Although Chen Wanrong did some strange things from time to time, they were not so charming. They did not come to see Chen Wanrong's strange things, but to see Prince Li Longji, who had forgotten them before they knew it.

If the central leader comes, I will also go and see it. Chen Wanrong smiled and said, "Please collect the things and rest! Everyone is happy today, and they are so happy. Oh, let's go and help my mother cook."

Chen Zhen complained: "Woman, you are really, are you willing to hunger us? I'll go and raise the fire." The female workers and Wang Zhongze and others hurriedly followed him to help. It doesn't matter whether they do the work or not, they always have to eat.

Gao Lishi muttered a few words in Li Longji's ear, and Li Longji laughed: "Shopkeeper Chen, I won't go to the government office today. I'll take advantage of you for a meal. Don't say I won't pay for the meal!"

It was teasing, and with kindness, Chen Wanrong smiled and said, "The prince is here, and the tent is bright, but he dares to obey him if he has his own fate! As long as the prince does not dislike the countryside, he will be fine."

"Do you think this prince's meal every meal and delicious food? That is what the king of a country that has fallen into, and this prince is enough to eat!" Li Longji's words were very calm, but exuded a wise aura.

Chen Wang came over quickly and whispered in Chen Wanrong's ear: "Wanrong, the prince wants to have a meal, what should I do? My mother only knows how to cook homemade meals. If you cook, you can cook. Otherwise, go and invite a chef with good skills."

Before Chen Wanrong could speak, Li Longji had already guessed her thoughts: "Auntie, please be relieved and make some home-cooked meals. I rarely come out once. In my spare time, I can just taste home-cooked meals."

"Crown Prince, how can this work?" Chen Wang was a little anxious.

Li Longji said to Chen Zairong: "Tell me about it to your mother."

Chen Zairong handed the lever to Yang Sixu and walked over and said, "Mom, just do it as usual. The prince doesn't care about these things, eat whatever you have."

"No matter how glorious you are, you are so unaware of things!" Chen Wangshi was still worried.

Chen Wanrong also came to persuade: "Mom, just do it as usual. The prince is an extraordinary person. He does not care about the exquisite food, but about the prosperity of the Tang Dynasty and pursues achievements."

Li Longji praised, "Shopkeeper Chen, these words are the voice of the prince. Aunt, I want to try your skills and must have authentic home-cooked dishes!"

As long as he said this, he couldn't hold on. Chen Wangshi had to go. Looking at her back, she was not walking, but floating, and flying. The prince wanted to taste her skills. Can she not be so happy that she floated up?

Zheng Qing smiled and followed her. Chen Wanrong was relieved. Zheng Qing had good cooking skills and could handle it with her if she could help her.

Then he turned around and looked in the crucible, and saw that the splash was even more powerful. Li Longji frowned and said, "If it splashes like this again, it will be gone in a while."

Chen Wanrong smiled and said, "The prince is lenient, no. After a while, the splash will be less." He looked at the crucible and did not move at all, as if there were treasures on the crucible.

Chen Zairong touched him: "Brother, what do you think?"

"I'm looking at whether the crucible has changed. Now is the time for the test." Chen Wanrong was very worried. After melting, it should be clarified. Clarification requires a very high temperature, usually 1,400 or 500 degrees. Such a high temperature has long exceeded the bearing range of the porcelain crucible, so it's not okay to worry.

After looking at it for a while, fortunately, there was no change. I don’t know what method Yuan Tiancheng used. The porcelain crucible could withstand such high temperatures, so I have to ask him.

"All Rong, help me set the mold." Chen Wanrong returned to the house and moved the mold.
Chapter completed!