The Prime Minister's Mansion finally became much calmer at night, but Ye Rong still looked like a pig and couldn't go out to meet people.

While combing her hair that was pulled out, Shen Mengrou got angry at her servants and said angrily: "Mommy, you said that ever since that little bitch came, there has been no peace in this house. She can't What a bastard! I really doubt that she did this thing!"

"Madam, I'm afraid you are confused. She has no ability!" Aunt Kang stepped forward to comfort Shen Mengrou and said. She was Shen Mengrou's dowry mother from her natal family and she knew Shen Mengrou's temper very well. Of course, he is also loyal to Shen Mengrou.

"Mommy, what you said about Brother Rong is true. You even gave the deed of the house to that little bitch. It is also a yard after all. Giving it to anyone is better than giving it to her!" Shen Mengrou said angrily.

"Madam, it's not like you don't know about that yard. Last night someone saw two ferocious beasts in the yard. They were said to be extremely ferocious. I must have known that the master gave them to them."

Mother Kang knew the Prime Minister well. He was full of resentment towards Su Yuning and the Su Mansion. How could he treat Ye Qingge and his brother kindly? There were obviously ferocious beasts in that yard, but he still gave them to him to save his face. Well, as for other things that happened, he didn't care at all.

After hearing what Aunt Kang said, Shen Mengrou calmed down. She knew that Ye Rong didn't like these two people. With Ye Rong's support, she would feel confident in everything she did in the future.

Thinking of this, Shen Mengrou smiled slightly.

In the early morning of the next day, Ye Qingge and Lin'er came back from exercise, and Xianghua had already prepared breakfast and was waiting for them.

After eating breakfast, Ye Qingge looked at the time and realized that it was almost time to go to West Street. Before leaving, he told Lan'er to send the little ones to the godson hall. He would make a meal at noon and bring them over to the little ones.

Because Manager Zhang was about to move in, today's task was to build a temporary house behind the kitchen. Ye Qingge asked Xiang Xiang to stay at home and watch the construction, and made arrangements for Zhou Yang's cooperation.

After making these arrangements, Ye Qingge set out for West Street alone with her curtain hat on.

"Master Zhao, are you there?" Ye Qingge quickly arrived at Blacksmith Zhao's shop.

"Miss, you're here!" Blacksmith Zhao immediately went out to greet him, followed by two people who looked like young apprentices.

"Well, just call me Miss Ye. I'll go and see where the furnace is." Ye Qingge didn't waste any more words and followed Blacksmith Zhao to the smelting room.

The furnace used by Blacksmith Zhao is about two meters high and is set up on a platform. The furnace body is round in shape and has a diameter of about 0.8 meters. The top is loaded with materials and the bottom is blown. The blast is made by two people working together. They saw Ye Qingge come in, took a look, and then stopped what they were doing.

Ye Qingge stepped forward and took a look at the furnace. It was similar to what she thought yesterday. When the wind power is limited, oxygen will burn with coal in the blast furnace to produce gas, and the gas will rise along the wall inside the blast furnace and eventually be discharged. But now the furnace wall is flat, so the gas is wasted and cannot play a greater role.

When Ye Qingge saw this, she took out a pen and paper and started drawing. She first tilted the lower wall of the blast furnace outward at about 62 degrees, thus increasing the contact area between the gas and the charge and improving the combustion efficiency.

Then, by changing the circular shape to an elliptical shape and blowing air on both sides of the flat, the wind force can reach the center of the blast furnace, thus increasing the smelting temperature and efficiency.

This method was discovered as early as the Han Dynasty. The oval iron furnace is not only conducive to the transmission of wind power, but also increases the volume of the blast furnace. Ye Qingge knows this because he and his classmates went on inspections with the professor at the military school in his previous life.

I learned about it in the museum, and the professor also specially tested the operating principles for them.

As for the air blast, Ye Qingge calculated the tuyere parameters and air blast parameters, and rationally improved the air blast equipment through the calculation of kinetic energy.

"Master Zhao, this is the drawing I drew. The size and parameters are marked on it." Ye Qingge handed the drawn drawing to Blacksmith Zhao and introduced him to the principle of improvement.

"Miss Ye, how did you come up with it? I have never seen such a design, but I understand the principles you mentioned. The shaft furnace in this picture is definitely more advanced than the shaft furnace I am using now.

"Tiejiang Zhao listened to Ye Qingge's description, studied it repeatedly with the drawings, and said with certainty.

"Actually, this is not what I came up with. This is the result of many ancestors. I just borrowed it." When saying this, Ye Qingge couldn't help but think of the great wisdom of the ancients. When she came to this world, she could bring advanced

It is an honor to spread technology. Only if it is done well can the efforts of our ancestors be in vain.

Listening to Ye Qingge's words, Tiejiang Zhao deeply agreed, and he felt more favorable towards this little girl in his heart.

"By the way, Master Zhao, take the drawings and make one first, find a place to experiment first, and then put it into use after the experiment is successful." Ye Qingge reminded that although the ancients had succeeded, it did not mean that what she did would be successful.

, it still requires trial and error.

"Well, it should be like this!"

"Erhu, prepare things according to the drawings. After that, we will go to the house outside the city and try it out first." After hearing Qingge's words, Blacksmith Zhao immediately handed the drawings to the big black man next to him and said.

Ye Qingge watched Blacksmith Zhao arrange for people to experiment with the shaft furnace. The smelting tools had been improved, and the next step was to smelt and forge the method.

The common forging method in Yunlan Kingdom is fried steel. The fried steel is named because it is constantly stirred during the smelting process, just like cooking. The raw material of fried steel is pig iron, which is mainly heated to 1200 degrees to make it

Semi-melted state. Then through constant stirring, the contact area between carbon and oxygen is increased, causing the carbon to oxidize. As the temperature continues to increase, the carbon content in pig iron continues to decrease, and gradually evolves into steel. Of course, if the temperature continues to increase

and continue stirring, it can become wrought iron. After tempering, these steels can become high-quality steel.

However, both steel-frying and steel-making technologies have certain shortcomings, that is, the process is complex, difficult to master, and has low productivity.

Ye Qingge's improved method was the steel filling method, which was improved and perfected by Qi Guanhuaiwen, a famous metallurgist in the Northern Qi Dynasty. It is recorded in "Tiangong Kaiwu". After the middle of the Ming Dynasty, the steel filling method was further developed. The principle

The pig iron is on top and the wrought iron is on the bottom. When the temperature is high, the pig iron melts before the wrought iron, and then "drips" onto the wrought iron. This molten layer can finally produce steel.

And this steel filling was the purpose of Ye Qingge's visit today.

"Master Zhao, please find some pig iron and wrought iron, and I'll make the iron!"

"Erhu, hurry up and find pig iron and wrought iron for Miss Ye." Blacksmith Zhao immediately ordered after hearing Ye Qingge's words.

If yesterday, Blacksmith Zhao had some admiration for the eldest lady of the Ye family, who was wearing ordinary clothes and had a birthmark on her face, then after seeing the picture of the shaft furnace today, Blacksmith Zhao was definitely impressed by Ye Qingge, and the same was true of Ye Qingge's instructions.

Words, words, deeds.

Seeing Erhu bring over pig iron and wrought iron, Ye Qingge first distributed the two types of iron according to the proportion. Using wrought iron as the feed iron, he put it into the furnace first, then placed the pig iron plate on the furnace mouth. When the temperature of the furnace rose,

High, when the pig iron plate began to melt, Ye Qingge used tongs to clamp the pig iron plate and move it left and right, and constantly turned the iron material to allow the iron material to be evenly poured into the molten pig iron.

It was approaching noon, and there were more and more people on the West Street. Zhao Blacksmith's shop was in a good location, and people coming and going would pass by. Ye Qingge was wearing a curtain hat and Tsing Yi standing in front of the blast furnace. Although he was young, he was

The aura exuded made everyone stop and watch unconsciously. Soon, many people came to watch.

Ye Qingge was focused on smelting, but he didn't notice that there were many people standing next to him.

"Erhu, what is this girl doing? Why did your shop accept female apprentices?" a man in the crowd asked curiously.

"This is Miss Ye. Yesterday she made an appointment with the master to teach us the smelting technique," Erhu said as he poked his head out.

"This little girl is teaching you smelting techniques. Are you kidding me?" A man dressed in dark silk satin laughed jokingly, with two boys following him.
Chapter completed!