Douluo's Most Powerful Weapon Soul Master

An important component of a good gun is the barrel. The barrel determines the lifespan of the gun.

The lifespan of an ordinary Type 92 pistol is about 2000 to 3000 rounds.

The material is also 50b or 50ba boron-containing 50 high-quality steel, not 50ab.

It is required that the yield strength is not less than 55 kg mm, the tensile strength is 80~100 kg mm, the elongation is not less than 8, the area shrinkage is not less than 40, the impact toughness is not less than 5 kg m cm, and the sulfide content is level 2, The oxide is level 2, and the sum of the two is level 3.5.

Moreover, in order to ensure good hardenability and hardenability, the grain size is required to be 4 to 6, and the structure is required to be uniform to ensure good processing performance, etc.

But there seems to be no such thing in this world, so using fine iron as the material of the gun barrel is a very good choice.

Fine iron is made by beating an iron ingot. After tens of thousands of beatings, a piece of fine iron can be tempered.

According to Tang San, fine iron is not only hard, but also very willful.

With the above two points in mind, Ye Xiuwen believed that it was feasible to use fine iron to forge the barrel.

As for the rest, just use ordinary iron.

Therefore, Ye Xiuwen re-estimated the cost. One gold soul coin can produce at least two sets of firearm materials, as well as the necessary bullets.

"Xiao San, let's forge this barrel with fine iron, and as for other parts, just use ordinary iron." Ye Xiuwen stopped Tang San and said.

"Uncle Ye, can this be done? The materials for the Zhuge Divine Crossbow I want to make are much stronger than these." Tang San was a little doubtful.

Because the Tang Sect's hidden weapons, even the most basic requirement is fine iron, such as the hidden sword used by Tang San, Qianben, which is like a steel needle, etc., these must at least be made of fine iron.

But his Uncle Ye just used fine iron to build a cylinder. He really didn't know what the use of this thing was.

"Don't worry, this thing is definitely better than your Zhuge Divine Crossbow. Go ahead."

Ye Xiuwen signaled Tang San to do this. Tang San shook his head helplessly and left with the drawings.

At this time, Ye Xiuwen and Xiao Wu were the only ones left in the room. Xiao Wu asked: "Brother Ye and Xiao San are going to blacksmith, so what are we going to do? You can teach me Tai Chi Push Hands and a few more moves. I don't know how to do it yet."

Ye Xiuwen thought for a while, shook his head and said, "Not today, because I need one more thing."

Xiao Wu asked curiously: "What?"

"gunpowder,......"

"It's simple. Brother Ye, just wait for me. I'll come as soon as I go..."

Before Ye Xiuwen finished speaking, Xiao Wu ran away and went to get gunpowder who knows where.

Ye Xiuwen shook his head helplessly. After packing up the things on the left, he went to find gunpowder.

But at this moment, Xiao Wu had already returned, holding a firework as thick as a bucket in both hands, placing it on the ground and saying, "Brother Ye gives you the gunpowder you asked for."

Xiao Wu was sweating profusely from exhaustion and was wiping it with her hands.

Ye Xiuwen smiled, handed Xiaowu a handkerchief and said, "Use this to wipe it."

"Thank you, Brother Ye." Xiao Wu wiped her face with the handkerchief Ye Xiuwen handed over, but she felt happy in her heart.

But at this time, Ye Xiuwen's attention was not on Xiao Wu, but on the fireworks.

It is theoretically possible to use the gunpowder of fireworks to make the gunpowder of bullets.

The main ingredient of fireworks and firecrackers is black powder, and its chemical composition is potassium nitrate, sulfur and charcoal, etc. But these are only part of the ingredients.

Because there are at least 5 elements in black powder: potassium, nitrogen, oxygen, carbon, and sulfur.

Therefore, the general formula of black powder is: 2g sulfur, 3g potassium nitrate, and 4.5g carbon powder.

But these fingers alone cannot fully serve as gunpowder for bullets. Black gunpowder will produce a lot of smoke when burning, and the driving force is insufficient. Such gunpowder cannot meet Ye Xiuwen's requirements at all, let alone use it to kill Soul Saint.

Ye Xiuwen needed higher-grade gunpowder, which was the smokeless gunpowder nitrocellulose commonly used on the battlefield.

The discovery of nitrocellulose was also full of chance.

One day in 1845, the Swiss chemist Schönbai accidentally knocked over a bottle filled with a mixture of nitric acid and sulfuric acid when he was doing an experiment. The solution flowed on the table. He couldn't find a rag for a while, so he hurried out and got his wife's rag. Cotton apron to wipe the table.

The apron was soaked in solution. Schönbein was afraid that his wife would scold him after seeing it, so he went to the kitchen to dry the apron. Unexpectedly, when he got close to the stove, he only heard a "pop" sound, and his apron was burned cleanly, without any smoke or ashes. After he was shocked, he carefully recalled what happened, and he suddenly felt very happy. He realized that he had synthesized new compounds that could be used to make explosives. To this end, he repeated the experiment many times and confirmed that the results were correct, so he named it collodion, which later generations called nitrocellulose.

Therefore, if you want to obtain smokeless gunpowder, two elements are essential. One is nitric acid and the other is sulfuric acid.

The method of obtaining sulfuric acid is relatively simple, but also relatively difficult.

In Douluo World, if you have fireworks, it is not very difficult to find black powder.

The most important component of black powder is sulfur. Sulfur is a sulfide and is formed under conditions very similar to natural sulfuric acid. So as long as you find someone who sells sulfur, you can also find natural sulfuric acid.

Of course, there is another possible method, which is to synthesize sulfuric acid.

However, synthesizing sulfuric acid requires a relatively complex extraction process.

Therefore, Ye Xiuwen temporarily gave up on synthesizing sulfuric acid.

So he asked Xiao Wu to go to various places where fireworks were sold to see if there was any sulfuric acid for sale. He also told Xiao Wu that this kind of sulfuric acid was very dangerous and told her not to touch it out of curiosity.

Xiao Wu nodded fiercely, not sure whether she understood or not, but she happily ran away with the handkerchief Ye Xiuwen gave her.

But at the same time, Ye Xiuwen was not idle. He was thinking of ways to obtain nitric acid.

And as long as he has nitric acid, sulfuric acid, and black powder, he can create the world's first pistol, which is a hidden weapon more terrifying than Tang San's King of Hell's Tie.

"The rest is nitric acid, but if you want to get it out, it seems a bit dirty."

Ye Xiuwen stroked his chin and paced around the room because he was wondering if there was any other good way to extract nitric acid.

But at this moment, someone knocked on the door.

"Who?" Ye Xiuwen asked. Because neither Tang San nor Xiao Wu had the habit of knocking on the door, if anyone knocked on the door at this moment, it must be an outsider.

"Grandpa, I am your grandson, grandpa,..."

"puff"

Someone outside answered, and Ye Xiuwen spurted out a mouthful of old blood. He was only seven years old, and he actually had grandchildren...