In the dimly lit room, Jiang Wei groped on the ground, looking for something. Because the room was too dark, he had to touch it inch by inch with his hands.

After passing through the incident with King Wei, Jiang Wei asked the blacksmith to build something. That is one of the representative types of thermal weapons, guns.

However, the current steel technology obviously cannot meet the requirements of the barrel, even if Jiang Wei offers the blast furnace steelmaking method, it still cannot be met. At that time, Jiang Wei thought about it, and since they had adopted orphans to become private soldiers, he didn't do anything, and built a steel-making furnace in Zhong Nanshan, and after making molten steel, Jiang Wei added a chemical element to the molten steel.

Chromium.

Jiang Wei has acquired many ores, among which chromium and lead ore has been discovered. One of the courses in energy and power engineering is the basic course of engineering materials, so Jiang Wei is still relatively clear about chromium, a chemical element.

Chromium has many functions, it is a material for smelting special alloys. These special steels and special alloys made from it are indispensable materials for the production of guns, missiles, rockets, and ships in aviation, aerospace, automobiles, shipbuilding, and the defense industry. On refractories, chromite is used to make chrome bricks, chrome magnesia bricks, and other special refractory materials.

It's a pity that Jiang Wei got very little, not much. In addition, the electrolysis equipment is not powerful, it takes a long time to decompose chromium, and it is good to finally be able to make a hundred barrels of special steel.

The materials are available, and the biggest problem is the barrel making process. If you just build an ordinary iron pipe, it is not difficult. Cast iron into pipes will do. However, not only is the inside of the iron pipe uneven, but there are also many bubbles in the iron pipe, which is impossible to make a gun barrel.

The only way to make a barrel is to drill holes with a drill bit, and then polish and smooth them to make a practical barrel.

In terms of the selection of materials, some special steel bits have complex processes and require more metal elements, so Jiang Wei gave up this kind of steel because he did not know the production process.

The only option is tungsten carbide. The hardness of tungsten carbide is very close to that of diamond, but Jiang Wei of titanium metal is not clear about the extraction process, and can only choose to abandon the filling, while cobalt is relatively easy to obtain, because there are ready-made ones.

At this time, the pottery glaze used cobalt, but it was mixed with other materials, and Jiang Wei wasted a lot of effort to extract the cobalt element.

To make tungsten carbide, it is necessary to make tungsten trioxide first, which is obtained by adding acid after tungsten ore and soda ash are melted. Finally, tungsten trioxide and carbon, and then cobalt were added, and although the hardness of tungsten carbide finally made was okay, it was much worse than the tungsten carbide cutting knife he used in his previous life.

After a month of polishing by a blacksmith, the tungsten carbide drill bit is formed, followed by the threading process.

This is a technical difficulty, and it can only be done by hand to make a very rough thread, and the steel rod and drill bit are fixed on the iron frame, one person cranks the drill bit by hand, and one person pushes the fixed steel rod.

Of course, shaking the drill bit is not directly shaken, and there is a gear set in the middle, so that the shake is transmitted to the drill bit through the gear set and shakes several times. It's a similar concept to a mountain bike, but with a different design.

In the end, it took thirteen days and several people taking turns day and night to make such a barrel.

As for the spring used in the pistol structure, Jiang Wei added the chemical element silicon, to the molten steel, which is extracted from sand. Carbon, the carbonized steel spring material is made, but it is only suitable for making small springs, because of technical reasons, the material of the spring is far worse than the previous life.

And the final gun, although the accuracy is a little worse, but with the bonus of nitrocellulose, the firing range can be regarded as fifty meters, and the effective firing range is forty meters. Jiang Wei was quite satisfied with this result. Sometimes he also goes to Zhong Nanshan to practice shooting, but he goes there less often. From then on, whenever he went out, he would carry a gun with him in case of accidents.

At this time, Jiang Wei was groping on the ground, and it was when he found that the gun on his body was missing, so he groped on the ground. But the result left him with some frustration, and after groping back and forth three times, he finally found nothing. It is clear that the pistol was taken from him at this time while he was unconscious.

Jiang Wei sat on the grass pile and leaned against the wall, he thought that these people couldn't understand the pistol, so they shouldn't pay too much attention to it, he thought about how to retrieve the pistol, but first he needed to determine the location of the pistol.

To determine the location, get the pistol back, then you have to get out yourself.

Sneaking out at night? The walls were made of brick and stone, and there was only one window, which he could barely get through, but it was a little high, about two meters high, and he couldn't reach it at all. Toilet? Does it work?

Just as Jiang Wei was thinking wildly, the sky was getting darker, and the room seemed even darker, but fortunately, the moon was big enough tonight, and the house was not so dark that nothing could be seen, but the smell of mold was too bad, obviously the smell of the lower layer of these haystacks because of dampness.

At this time, Xu Hui gradually woke up, she opened her eyes and looked very confused for the first time, and glanced around blankly, only then did she recall what happened today.

"Ah......h

Jiang Wei was startled by Xu Hui's scream,

"Don't be afraid, cousin, cousin is here."

"Cousin?"

Xu Hui seemed to be frightened, after she saw Jiang Wei in the moonlight, she was confirmed, and quickly stood up, touched the wall and came to sit down beside him.

She has had plenty of food and clothing since she was a child, where has she ever encountered such a thing, and what she encountered this afternoon can be said to be the most terrifying thing she has encountered in her life.

"Cousin, where are we?"

Jiang Wei heard Xu Hui's trembling voice, and sighed in his heart, a delicate little girl, in this situation, it is not bad to have such a performance.

"Cousin, don't worry too much, we'll be fine for the time being, everything is with my cousin."

Jiang Wei briefly said the matter again, including the current environment.

Xu Hui nodded, hearing Jiang Wei's words made her feel a little relieved, at least she was no longer flustered.

"Cousin, is there anything wrong with you?"

Xu Hui shook his head,

"No, by the way, cousin, who are these people? Why did you tie us up here? ”

Jiang Wei sighed in his heart, he only knew Chen Shuozhen alone, and he didn't know anything about the rest. But this time it was enough to teach him a lesson, and it made him hate it.

As long as he got the gun, he would have a way to get out, at least his life would be guaranteed. After going out, he must find out who the mastermind is this time.

Xu Hui saw that Jiang Wei was silent, and he also understood. I just didn't know what to say for a while. It was the first time she was alone with Jiang Wei at night, and she was a little nervous.

And Jiang Wei was thinking wildly, and the atmosphere was relatively quiet for a while.

April is the tail end of spring, when the night temperature is relatively low, and there is no global warming, and the temperature is only three or four degrees at this time.

In the afternoon, the weather was warm, but in the evening, because Xu Hui wore less clothes and the room was more humid, she felt a little cold at this time, holding her arms with both hands, and couldn't help leaning towards Jiang Wei's side.

Jiang Wei noticed it at this time, took off his coat and draped it over her shoulders. Xu Hui shrank like a frightened rabbit. When I looked up and saw his gentle movements, my heart melted all of a sudden, and for a while I felt like I was drunk with honey, and my face was red and hot. She pulled her clothes and wrapped herself, smelling the clothes, and her brain was dizzy for a while.

This is...... Cousin's taste! The smell made her tense nerves in this unfamiliar environment relax a little.

"Cousin, aren't you cold?"

Jiang Wei smiled,

"My body is not afraid of the cold, you can wear it."

Xu Hui buried his head and didn't dare to look at him, just nodded lightly, smelling the smell of clothes.

"Don't think about it, we'll be fine, trust cousin."