I do research in ancient times

The first shot of the shore cannon, the younger brother Feng who was watching from afar was shocked, let alone the few Mozong craftsmen who were directly facing the firing site.

Xu Jin stared, unable to say a word for a long time.It wasn't until the gunpowder smoke cleared, revealing the mountain that was blown out of a hole, that he took a deep breath.

"Hey! What the hell is... what is...?"

Liu Tie on the side was not much better than his senior brother, and he was in a state of being out of his mind.

He lowered his head, his eyes fixed on his still shaking hands.

It was these hands that built the cannon barrel little by little, and polished the iron balls shot out of it...all made by himself!

There was a loud noise, and the hard rock was cut and chipped like a block of wood. If it hits a person...

Liu Tie shuddered, and a sudden chill came down his back.

Jizi said, this is called shore cannon, which is a special weapon built to protect the safety along the Wuzhi River, and it is specially used to deal with large ships going up along the river.

When Jizi said this, his expression was unprecedentedly serious and condensed, completely different from his previous appearance.

Liu Tie vaguely felt that Juzi seemed to have encountered something outside, and his whole person had undergone some changes, but he couldn't tell exactly what changed.

In short, it is to let everyone live better.

Thinking of this, he saw Ning Juzi walking out of the bunker quickly, ready to go to the scene to check the situation.

Seeing this scene, several people also hurriedly followed.

He thought Jizi was going to the hill to see the effect of the shelling, but he didn't even look at the hill, and walked directly to the shore artillery storage area.

"Juzi, the rocks are blown to pieces, such a big hole is really powerful!"

Xu Jinjin ran back from the hill, panting, reporting excitedly.

Ning Fei nodded, and didn't react too much, but had a serious expression on his face.

Seeing him like this, the cannon-making trio were stunned.Xu Jin scratched his head, not understanding what he said was wrong, why Juzi didn't seem to be happy at all.

He himself thinks that this thing called "cannon" is really well made. At least Xu Jin has lived for most of his life. The most powerful weapon he has ever seen in his life is the "shore cannon". "Slingshot Crossbow" is much more powerful!

As long as it is within the "range" of the shore artillery, it is almost invincible.

"No, still no."

Ning Ju's face sank like water, and he scanned the cannon body inch by inch with the magnifying glass in his hand, the more he looked at it, the colder his heart became.

The toughness and ductility of steel are insufficient, and tiny cracks have appeared as soon as it is fired. Let alone forming combat power in a short period of time, it will be thankful that the chamber does not explode the second time.

The pouring method requires pouring molten iron and mixing wrought iron, and requires a second manual forging. Although the carbon content of the steel produced in this way can be controlled, it still cannot be completely and evenly fused. There is no problem with forging weapons and the like. But if you switch to a gun body that requires higher strength and toughness, deviation points will inevitably appear.

The iron ball is accelerated by the impact of gunpowder in the barrel, such a powerful force is enough to smash any weak link.Therefore, this cannon is indeed well-built, but cracks appear after only one shot, and it is an out-and-out failure.

"With so much force, a small crack broke, and it can be repaired by pouring some molten iron. This cannon is really strong."

On the sidelines, Liu Tong, a layman, was still surprised, feeling like he was stabbing Juzi's heart.

Make up?

Ning Fei glanced at Liu Tong with indifference.

Thought it was building a house?

He can accept resetting and adjusting the angle after a shot, but what the hell is it with molten iron?Are disposable items recycled? !

It seems that the steel pouring method is not good, and the quality of the gun body cannot be guaranteed if it cannot be poured in one piece. It is still necessary to work hard on the iron smelting.

Ning Fei thought for a while, then turned to tell Liu Tie at the side.

"Brother Liu, go back to the city and call Yang Heizi from the mining team over, and tell him that I have something to ask him."

Liu Tie nodded, turned and left without hesitation, leaving only Liu Tong and Xu Jin with puzzled faces.

Aren't you talking about making cannons?Why did you call Yang Heizi here?Is it because there are mineral deposits in the mountain that was bombarded?

But seeing Juzi's complexion getting worse and worse, Liu Tong and Xu Jin didn't dare to ask more questions, so they could only stand silently and pretend to be quail.

Ning Fei stopped after recording all the data.

He turned his head and saw that the two people behind him looked apprehensive, sighed softly, and the expressions on their faces relaxed.

"It's not your problem, it's technology or insufficient development."

This sentence completely cooled the two people's emotions that were boiling because of the cannon test to freezing point.

Xu Jin couldn't hold back his face. He wanted to argue but didn't dare, so he suppressed his face like a monkey's ass.

Seeing his expression, Ning Fei couldn't guess what he was thinking.

"Brother Xu, I don't mean to blame you. It is indeed because our steelmaking technology has not yet developed enough to undertake the casting of the gun body."

Speaking of this, Ning Fei sighed, with a somewhat gloomy expression.

"It's because I'm too self-righteous, thinking about leaping into the era of hot weapons in one day. It seems that the accumulation of thousands of years is not fake, and it's really not good to take too many steps."

This incident reminded him, and made him realize clearly that he was just an ordinary person, not an omnipotent god.

It has to be said that since coming to this world, Ning Juzi has been going smoothly on the technical line and has never tasted a defeat.

This is of course due to the accumulation of knowledge in his brain, but in the eyes of the world, these imaginative and imaginative objects are the means of gods, and their moments are omnipotent, and they can succeed in anything.

As time goes by, Ning Fei himself has been cultivated with inexplicable confidence.It seems that no matter what the level of technology accumulation is or where the breakpoint is, as long as he can produce a complete process flow, this defect can be directly made up and a leap forward can be achieved.

This is the most common illusion for time travelers, and Ning Saw is not immune to it.

He thought that the wisdom and craftsmanship of the ancients could make up for the lack of technology and craftsmanship, and he tried to directly connect hot weapons with the method of pouring steel, but of course it failed.

To make weapons, you still need the technology accumulation of basic industries!

It's just that he was reflecting in his heart, but someone beside him couldn't hold back.

"No, Juzi, it's just a small gap. Aren't we still wrapped with steel wires outside? It can be used by mending!"

Xu Jin said softly.

Ning Fei shook his head.

"It's not that simple. If there is a gap in the gun body, there will be problems with the rifling in the inner layer. The gunpowder will generate high temperature and high pressure in the barrel, which will easily cause the chamber to explode and hurt your own people."

"Liu Tong said before that it can be repaired, but the heat resistance and pressure-bearing capacity of the repaired place are different from the original one-piece gun body. Besides, how can there be a chance to repair it during a war? So this gun is absolutely unusable."

When it came to some scientific theories, Ning Fei used simplified terms, hoping that Xu and Liu could understand.

"The jiaozi said that our steelmaking method is not good... We can now forge Mo Dao and Heng Dao, so is this kind of steel still not good?"

Xu Jin asked with a look of despair.

In his opinion, the current method of pouring steel is already the untold secret that can create a school and prosper the sect!If that doesn't work, then...

He looked at the coastal defense artillery in front of him, his eyes full of loss and fear.

How to cast it?How else can it be cast? !

Just as he was thinking, Liu Tie led the panting Yang Heizi into view.

Yang Heizi also heard a loud noise in the city, and when he heard Liu Tie say that Juzi had something to talk to him about, he thought he had discovered some new ore vein, and looked forward to it.

"Juzi, do you have something to order?"

Hearing his question, Ning Fei nodded and got straight to the point.

"Near the north slope of Niubei Mountain, there is a series of hills, are you familiar with it?"

Yang Heizi is a living map of Niubei Mountain, and when he turns his mind, there is a picture in front of him.

"Juzi is talking about Yuan Baofeng?"

Yang Heizi thought about it.

"I've been there a few times, but it's far away from Wubao, and there are several peaks in between, so few people usually go there."

"Juzi asked about Yuanbao Peak, but there are mines there?"

Ning Fei nodded.

"There are indeed mines."

He found the location on the mine map of Niubei Mountain. If the Yuanbao Mountain mentioned by Yang Heizi was really the location he described, it would be the only graphite-producing place within hundreds of miles.

"There is a kind of black stone over there, which is relatively soft, black-gray, and greasy. Do you have an impression?"

"There are some!"

Yang Heizi nodded repeatedly.

"Juzi is talking about pabatou, right? This thing is piece by piece, and it will turn black when it touches it, like charcoal sticks."

Papa head?

Ning Fei imagined it for a while, and felt that what he and Yang Heizi were talking about should be the same thing, so she nodded.

"This is it."

"I want to use graphite... um, Babatou, mixed with clay to make a kind of wide-mouthed steel, but use it?"

"Use it well!"

Yang Heizi nodded.

"I don't know how much stone material Juzi needs? Tell our mining team to bring the mineral material back as soon as possible."

"It doesn't need a lot, just try to make a graphite crucible first, and two cars will be enough."

Ning Fei looked at Liu Tie.

"The method of pouring steel cannot be used to cast cannons, and now we can only find another method."

"Don't you always produce some black viscous tar from coking? I told you to collect it before, and now this thing can finally come in handy."

"When the graphite dug out by Yang Heizi arrives, we will mix it with this viscous tar, and then add glass-burning silica to crush and calcinate together, just like you used to make earthen jars, and then we will use this container to make steel again. "

As soon as these words came out, everyone was shocked.

Re-smelting steel? !Also use a freshly fired crock? !

Even Yang Heizi, who doesn't like to smelt iron, couldn't stop the astonishment on his face.

Re-smelting steel...meaning that Juzi is not satisfied with the current iron smelting?

But now they can make weapons that cut iron like mud like Modao and Hengdao, which is much better than the Baisteel of Longquan Jianfang in Changzhou. Isn't such good steel enough? !

However, due to Juzi's authority in the sect, none of the few people present dared to raise objections, and they were ordered not to mention it.

Only two days later, Liu Tie came to report that the container for smelting iron was finished, and asked Juzi how to operate it next.

Ning Fei put down his pen, put the crucible steelmaking diagram he had just drawn into his arms, and nodded to his right-hand assistant.

"Okay, follow me to have a look."