went back and cleaned up briefly, Zhao Rui sent Chen Xuan to Hulang according to his words, and then sent someone to escort him to the dragon, Chen Xuan said goodbye respectfully before going on the road.

Zhao Rui turned around and went towards Wanya Prefecture, thinking about the steam engine in his heart, and he didn't know if it had been built.

found Wei Lu, looking at his sad face, Zhao Rui knew that there was no play, and after asking carefully, he knew that there was a problem with air tightness, and the main reason was that the quality of the steel was not up to standard, and it was impossible to meet the conditions of high pressure.

Zhao Rui was surprised, "What? Do you want to start with something that can pull the vehicle? No way! ”

Zhao Rui covered his head with both hands, he himself also needed to calm down.

It's still pulling the car, the bearings haven't come out, the car is a fart!

"Let's go back to the house and read a book!"

Zhao Rui stood up and decided to find out for himself, otherwise the progress would be too slow, and with the continuous improvement of the textile machine, the demand for cloth was also increasing. If you can't make a steam engine now, it feels like you've lost money.

"Here......"

Seeing the prince get up, Wei Lu also quickly stood up, took out a cloth bag from his arms, opened it carefully, and inside was a book about steam engine materials.

I carry it with me......

Zhao Rui glanced at him, took the information, flipped through it for a while, and then pointed to one of the pictures and said: "What we want now is this, the watt steam engine, which is also a kind of low-pressure steam engine, this kind of flywheel and governor, as well as a separation condenser, do you know?" ”

"Oh, I see! It's just that it's going to take a lot of work to start researching again......"

Although Wei Lu didn't explain, Zhao Rui heard it, and he didn't mean to complain that he didn't say it earlier.

But I have just finished working on the textile machine recently, and I have fought a few big and small battles, so I just have time to pay attention to it.

"It's okay, I'll study it with you!"

Zhao Rui was determined to make a steam engine, so he thought about staying here for a while, anyway, there was no big worry about Jiaozhi, and now the Chen Dynasty was enough to deal with Angkor and Champa City.

And Zhao Rui is not worried that Angkor and Champa will break through so quickly, the so-called emaciated camel is bigger than a horse, no matter what Chen Chao says, he also has some background, it is really not a matter to stick to a city or something.

Zhao Rui also wanted to go to see the smelting place, and Wei Lu accompanied him over.

"Oh, by the way, how was the generator you told me last time, do you have any eyebrows?"

Wei Lu shook his head and said: "That generator needs to be wound with a lot of copper wire, but the copper we smelt from the copper mine has too many impurities to make such a thin copper wire, I heard that there is a gallium water spring nearby, and when I am done here, I will go to practice some pure copper." ”

Zhao Rui listened silently, and for the first time felt that it was not so easy to develop industry, especially the industrial revolution that took hundreds of years to complete by the ancestors, and it was difficult to develop it in a short period of time, even if there were data drawings.

Although Zhao Rui can also transport back equipment in modern times, but after all, it is a drop in the bucket, as the territory gets bigger and bigger, it can't always use modern equipment, and a large number of long-term procurement equipment will definitely be noticed.

When the time comes, development is a small matter, and life is the most important thing.

Although it is difficult, no matter how difficult it is, it has to be done, and now the drawings and materials have made the direction clear, and the rest is nothing more than experiments.

Looking at the smelting workshop, there are two small blast furnaces and a large one, two small ones for smelting copper ore and one for smelting iron ore, all of which use the local methods of the Southern Song Dynasty, and the highest one is made by Wei Lu according to the books.

And according to the theory in the book, the coke and limestone used by Weilu were made or found by him, but most of the molten iron still produced is now.

In order to motivate him, Zhao Rui pointed to the manpower wind box next to him and said: "See, how much wind can be blown out by artificial, and how much pulverized coal can be blown in!" As long as our steam engine is studied, then we can make a steam engine-driven blower, and the air volume is naturally incomparable to manpower, and you also crush coal by manpower, right? When the time comes, it is also appropriate to make a roller, which is also a proper labor-saving! ”

Because Zhao Rui is a modern person, he can say these suggestions that are ordinary in later generations, but Wei Lu is an ancient, and his thinking itself is limited, and when he heard Zhao Rui say this, his heart was also open, and he felt that the steam engine was really a good thing, which could not only save manpower, but also improve efficiency.

Zhao Rui picked up a piece of pig iron, fell to the ground, and split it with a snap, and it seemed that the impurities contained were very high.

"That's what comes out?"

"No, there are a few ovens that are more brittle than this one once in a while......"

"What?" Zhao Rui's face immediately collapsed, even more brittle than this! How to use it!

"However, there are some very small amounts, which are particularly hard, and they should be steel, if such steel is made into weapons, it will definitely be sharpened like clay, and it will be priceless!"

As a blacksmith, maybe Wei Lu still has the obsession of playing some kind of magic weapon, and his expression is full of yearning.

"You keep it, if it's really good steel, don't do any weapons, and when it's time to use it as a machine tool, it's also very good, and it's worth more than any weapon......"

While talking, the two of them went to the room next to the workshop.

There were still a few people sitting here, and Zhao Rui felt faintly familiar, probably the people who fled to Yongping Village with Wei Lu.

"Meet the Prince......"

Everyone stepped forward to salute and say hello, it was Zhao Rui who personally took them in, and they were all grateful.

Zhao Rui found that before he entered the door, everyone was looking at the books and still discussing, so he smiled and nodded.

Then Zhao Rui asked them about the methods and methods of their research in detail, and heard that they decided on the direction of the experiment after discussing together, and then conducted the experiment one by one after the discussion.

That's a little slow......

This should not be done when there is drawing information.

Zhao Rui said to everyone: "From now on, each of you will lead five people to conduct group experiments, often when a problem needs to be experimented, you can do it in groups and check the effect, which is the fastest." You can find these people from the smelting center, or you can find some experienced people, and I will recruit some more blacksmiths to work with you. ”

Zhao Rui's suggestion is very time-saving, and everyone agrees.

But the specific problem is analyzed specifically, Zhao Rui is also sitting in the room, looking at the book with peace of mind.

Zhao Rui is now thinking that the manufacture of weapons must be combined with the development of science and technology.

Or it can be said that if there are conditions, the development and production of weapons must be carried out first, otherwise, the progress brought by science and technology, or the harvest is too amazing, which will often cause others to blush, in case of war, and Zhao Rui's weapons have not been done well, they will suffer a big loss.

Flipping through the schematic drawings of the Makqin machine gun, this stack of drawings was still found by Zhao Rui on the Internet, which was a cartoon rendering, which was directly printed out in the copy shop at that time.

Seeing that there were too many parts inside, Zhao Rui frowned and asked Wei Lu about the difficulty of production.

It's not difficult for Wei Lu to take a look, but there is no steelmaking yet, and if you use pig iron, after all, the physical characteristics are not up to standard, and if you really make it, it may break, and if it is serious, it will explode.

Zhao Rui nodded and asked them to carry out the experiment of converter steelmaking as soon as possible.

Zhao Rui still has some understanding of converter steelmaking, that is, blowing a large amount of air into the molten iron of the converter, using the temperature of the molten iron to decarburize, and adding limestone and other materials at the same time to oxidize and deslag, phosphorus and sulfur in the molten iron are the reasons for the brittleness of steel.

On the one hand, steelmaking, on the other hand, the research of steam engines, these two are complementary, steel can greatly increase the durability of the steam engine and the sophistication of manufacturing, and after the steam engine is built, it can also become a powerful blower, so as to refine better quality steel.

With the direction, everyone also has goals and motivation, and when they are still researching and planning, Zhao Rui thinks that it is not enough to rely on blacksmiths to do research, they have no practical experience, and there are too few theories.

So Zhao Rui went out and went to Lin Shizhao's side.

Lin Shizhao has made considerable progress in his work of eliminating illiteracy, and some half-grown children have almost learned the characters these days and are writing articles.

Zhao Rui's arrival made Lin Shizhao very happy, after all, he was teaching in Wanya Prefecture, too far from home, and it was rare to meet an acquaintance, besides, Zhao Rui's identity is not ordinary now, he can come in person, let others see it, and Lin Shizhao is also a big long face, no way, it's so valued!

"What? Brother Zhao, are you going to give a lecture here? Did I hear me right? Lin Shizhao was very surprised when he heard Zhao Rui's purpose.

"Why, you can talk about it, why can't I talk about it? Don't forget, who taught you simplified Chinese. Zhao Rui replied with a smile.

"Oh no, I think you're too busy, how can you have time to lecture!"

"Alas, I'm busy with education...... Zhao Rui sighed, and then said: "I just came back from the smelting center, and they are all blacksmiths who have no theoretical foundation. ”

Listening to Zhao Rui's words, Lin Shizhao also felt that he should think far ahead in terms of education, after all, it was for future development.

Later, Zhao Rui asked for a group of half-sized children between the ages of fourteen and eighteen for exploratory training.

After the news spread, the boys of this age group went crazy and hurried to sign up to grab the spot, and their families were also very supportive.

Originally, in the Southern Song Dynasty and the Chen Dynasty, the imperial examination was still possible, but now there is no such condition in the chaos of war, but the prince knows how to make good use of people, and it is also excellent if he is familiar with his face in front of the prince.

Although he knew that there were many people who signed up, Zhao Rui was still taken aback when he arrived at the house.

The house was full of no place to stay, and then there were people sitting on the windows, and no one dared to grab Zhao Rui at the front door, but there was already a long queue at the back door.