In Ningzhou, Xu Mochen arranged things and took his people back to Beijing.
Since his identity has been exposed, he did not hide it, and of course he would not make a big splash.
Xie Jing decided to join Xu Mochen's National Medical Center and followed him to the capital. In this way, Shu Wuyin went with him.
But she didn't come to see Xu Mochen. Her personality was unsociable and she just stayed around Xie Jing.
In this era, travel mainly relied on horse-drawn carriages, and with the large number of people, movement was not fast.
"Your Majesty," Tang Derun rode up to the carriage where Xu Mochen was sitting, "in front of you is the Yuhuatai. The craft of forging gold foil that the Fang brothers and sisters mentioned is nearby."
Xu Mochen remembered that it was still difficult to conquer the manufacturing of injection needles. During the discussion, brother and sister Fang Minghang and Fang Mingying mentioned Ningzhou Yuhuatai gold foil forging skills.
It is said that gold can be beaten as thin as paper.
During the troubled times, the political power was divided. Ningzhou was the territory of the former Southern Wei, and Buddhism was relatively prosperous. Therefore, many Buddha statues were built in the palace, all using gold foil.
Subsequently, other countries also came here because of its reputation, and this skill became a key national protection target of the former Southern Wei.
After the reunification, Xu Mochen had no time to carry out large-scale construction. The palace was not expanded, and there was no palace or anything like that. He ignored the construction of temples.
However, the skills are well preserved.
"Go and have a look," Xu Mochen would not miss any opportunity. "Folk skills sometimes give surprises."
The convoy changed direction and headed towards its destination.
When I arrived, I saw a group of buildings, which were not small in size, but deserted and seemed to have no popularity.
Tang Derun stepped forward to say hello, and soon a group of people walked out.
All of them have rough bodies, their arms are full of muscles, and their palms are covered with calluses. They should be the craftsmen here.
Tang Derun explained the matter, and a middle-aged man bowed to express his understanding.
Here, Xu Mochen got out of the car, followed by Shen Zhining and others. When the group saw them, they had to salute again.
"No need," Xu Mochen waved his hand, "I heard that your place has been engaged in the art of gold foil forging for generations."
"Your Majesty," the middle-aged man stepped forward, "the king of the common people wins, and the common people have real talents.
The Wang family has been engaged in gold foil forging for five generations.
Now that the world is unified, His Majesty is the wise king of the world. He focuses on government affairs and does not have any civil construction. Therefore, the amount of gold foil has decreased a lot in the past two years."
Xu Mochen nodded: "The demand is small, but that doesn't mean the technology is useless. You can make the transformation."
Wang Sheng expressed that he did not understand what transformation was.
A group of people entered the hall chatting casually, Xu Mochen sat down, and the others stood at the bottom.
He signaled to Tang Derun, who stepped forward and took out the injection needle.
"I want to ask you if you can build something similar to this, or if there is any way." Xu Mochen picked up the tea bowl and took a sip.
Wang Sheng took it over and looked at it carefully, and couldn't help but marveled: "Your Majesty, although this thing is small, it is rare for its exquisite craftsmanship, especially the needle, which is hollow."
Xu Mochen said don't underestimate this thing, it can only be made on the basis of modern industry.
In this world, it would be very difficult to create it if there were not immortal cultivators who use their magic to help.
"The material of this thing is neither iron nor copper nor gold nor silver." After all, the craftsmen who have been engaged in blacksmithing in the past generations still have discernment. Wang Sheng said his own opinion, "When the common people traveled in the rivers and lakes, I have seen this before.
An extremely hard metal called white steel."
"Good eyesight," Xu Mochen almost applauded, "Isn't smelting difficult?"
He knows that this is stainless steel, which is different from steel.
"It's very difficult," Wang Sheng did not deny. "It was just smelted by accident. I don't know how much more manpower and material resources it will cost.
In many places, swords are made into important weapons for use by members of the royal family."
In other words, with the current technology, it is impossible to smelt stainless steel in large quantities.
Xu Mochen was not discouraged: "According to your opinion, is there any alternative or improved method?"
"The common people have some ideas," Wang Sheng frowned, "but the common people don't know what your Majesty wants this thing to be used for."
Zhao Lingbo smiled and she stepped forward to explain.
"It is used to inject water and the like," Wang Sheng understood, "and it is meant to penetrate human skin. In this case, the common people have an idea. Is it okay to use iron tools?"
Xu Mochen didn't understand very well, so he looked at Shen Zhining.
"It's possible," Shen Zhining searched for a few options, "but the main thing is this needle..."
"It is indeed very difficult," Wang Sheng affirmed. "If we want to make it so sharp and small, I'm sorry to say that we cannot achieve it with our technical level, but if it is acceptable to be thicker, there is a way."
Xu Mochen and Shen Zhining looked at each other: "I would like to hear the details."
"The grassroots people have been engaged in forging for generations and found that different materials have different burning temperatures," Wang Sheng explained, "Silver, for example, burns better than iron."
Xu Mochen understands that the melting points of metals are different.
"So Cao Min believes that we can use two molds for manufacturing," Wang Sheng began to explain. "The first time the mold is small, and a solid needle is made. But this time the material can be gold or silver. p>
Then, make a larger mold outside it, fill the hollow space with wax, and then pour molten iron into it to cool it and shape it.
In this way, the surface layer is iron, and the inside is gold and silver that is easier to burn.
The third step is to melt the solid gold and silver inside to get a hollow needle."
Xu Mochen couldn't help but stand up and use the melting point of metal to deal with it, which sounded very reasonable.
"Is it possible?" Xu Mochen asked.
Shen Zhining shook her head. This is a technique that even Du Niang doesn't know about. No one has done it like this.
"The melting temperature of molten iron is higher than that of gold and silver," Xu Mochen pondered, "Will the gold and silver be melted when the second pouring goes in?"
Wang Sheng also thought about it: "So this step is very critical. Once it is poured in, it must be cooled immediately.
And this thing is very small, so it may be difficult to operate.
If Your Majesty can still accept larger needles, there are other methods, but they are more painful to use."
No matter how painful it is, it is better than losing your life.
"Sir," Xu Mochen stepped forward, "Can the method you mentioned help me produce it? This is a matter of concern to the people's livelihood in the world. I ask for your help, sir."
Wang Sheng hurriedly saluted: "The common people are no more than people from the countryside. They only have skills and can serve His Majesty. The common people are willing to do everything they can.
It’s just that what I just said is just an ordinary person’s idea. In fact, it still needs to be implemented to know, and it is not a bad idea to improve slowly.”
"No matter how difficult it is, we have to start," Xu Mochen turned around, "How much gold and silver were found in Prince Ning's Mansion?"
Tang Derun coughed and stepped forward to report in a low voice.
"Ship them all," Xu Mochen immediately decided, "you can't work in vain, you must be paid.
In addition, if you need any supplies, please report them directly in the future, and I will personally take care of the matter."
As long as we can get the injection needle, we have to pay no matter how high the price is.