[Chapter Word Count:3076 Last Updated:2014-12-1712:00:00.0]

Chen Fu and Yu Xier agreed, and began to beckon everyone to carry things, cotton, cinnabar and saltpeter were transported to the chemical production area, and various mechanical processing equipment was transported to the metallurgical production area.

A group of Filipinos came over, brought down the goods on the ship, put them on small carts, and then pushed the carts away, there are very few horses on this island, so they can only use manpower, fortunately the road has been built, otherwise there is no way to transport it on the original dirt road.

Lin Fei took Chen Fu to the chemical production area and called Su Yunzhao and other technicians together, Su Yunzhao saw that Lin Fei bought back a lot of cinnabar and saltpeter, and asked the same question as Chen Fu: "What are you doing with these things?" ”

Lin Fei smiled and picked up a ball of cotton and said, "Do you know this thing?" ”

The crowd said, "Isn't this cotton?" What don't you recognize? ”

Lin Fei smiled: "That's right, this thing is cotton, so what about this thing?" After Lin Fei finished speaking, he took out a hemp rope from his pocket and handed it to everyone, and everyone said, "Isn't this a hemp rope?" ”

Lin Fei put the hemp rope and cotton together, and asked with a smile, "What do you say these two things have in common?" ”

Everyone shook their heads and said, "What can these two things have in common?" ”

Lin Fei said: "Cotton and hemp rope, the things that make them up are called cellulose, we soak the cotton in nitric acid for a while, and the resulting thing is nitrocellulose, and then after some processing, we can get nitrocellulose gunpowder, this gunpowder is a kind of propellant, we will load them into bullets in the future." ”

Everyone nodded, Lin Fei picked up another piece of crimson cinnabar, and said: "This thing is called cinnabar, also known as 'bloodstone', everyone knows some Western chemistry knowledge, do you know what its composition is?" ”

Su Yunzhao smiled bitterly: "We don't know. ”

Lin Fei said: "It is a kind of thing called 'mercury sulfide', which can get 'mercury' after heating, and then add mercury to nitric acid, we get mercury thunderate, mercury thunderate is a kind of initiating charge, used to ignite the propellant, we use mercury thunderate to make a primer." ”

In Lin Fei's era, some other substances would be added to the propellant and initiating charge to adjust the performance, such as adding potassium chlorate to mercury thunderate to improve the firing performance, but Lin Fei in this era did not have those things, only used the most primitive propellant and initiating charge.

After Lin Fei finished speaking, he emphasized the matters that need to be paid attention to in the processing process, such as "mercury vapor is highly toxic", "nitrocellulose may explode", etc., Lin Fei told the craftsmen the approximate ratio of various substances in the chemical reaction, and Lin Fei could only tell them the approximate ratio, because in the chemical production of Lin Fei's era, the precise ratio was the core secret of each arsenal and the key to maintaining the competitiveness of the arsenal, and Lin Fei could not know.

Probably the ratio can also make the things needed, but the efficiency will not be too high, which Lin Fei is not worried about, because these craftsmen can explore experience in actual production and determine the ratio with higher efficiency.

After Lin Fei arranged the propellant and initiating charge of the bullet, he went to arrange the mechanical part of the gun and bullet, which can be divided into a chemical part and a mechanical part, the chemical part is the initiating charge and the propellant, and the mechanical part is the parts that make up the gun.

Lin Fei came to Ling Xue's construction bureau and brought all the craftsmen together with Liu Daming, Li Mingming and others, Lin Fei first said: "I asked everyone to come today to tell you something, we are going to make guns." ”

Li Ming first asked, "What do you do to make guns?" Don't we have guns now? ”

Lin Fei said: "Our current guns are manual, and what I want to build is a rifle that can fire automatically." ”

Everyone was surprised, and Li said clearly: "I heard that there is a thing called the 'Makqin gun', which can shoot bullets like a cannon, is it the same for the gun you said can fire automatically, captain?" ”

Lin Fei nodded and said, "Probably what it means, now let me talk about the principle of this automatic rifle, and bring me a Mauser M1893." ”

A soldier took a gun and handed it to Lin Fei, Lin Fei pointed to the chamber and said: "The bullet is fired here, and the gas produced by the propellant pushes the bullet out of the chamber, and then these gases are ejected from the barrel, now we add a tube to the barrel, so that the gas flows back through the guò tube, this part of the gas pushes a piston, the piston is connected to the bolt, when the piston is pushed, the bolt will also move, and automatically complete the actions such as shell throwing, loading, locking, etc., no longer need to use hands to act, Pull the trigger directly to fire the next bullet. ”

Everyone was pleasantly surprised, because everyone understood that once this gun was on the battlefield, it would have an unparalleled advantage in the rate of fire!

Lin Fei continued: "One of the major difficulties in making this kind of gun is that spring steel is not easy to manufacture, and it cannot be made at all with the current ability of Ling Ji Construction Bureau, but fortunately, I bought a batch of steel-making open hearth furnaces from the British, which can completely smelt spring steel." There are a lot of parts and processes involved in this kind of gun, and these days I live in a construction factory and teach people how to use those machining tools to make these parts. ”

Liu Daming said in a loud voice: "This kind of gun must be very bullet-intensive, how can our bullets be manufactured?" ”

Lin Fei said: "I have already considered the bullet, the material is brass, the Ling Ji Construction Factory can be smelted, the bullet is divided into several parts, the warhead, the shell, the primer, the propellant and the initiating charge, the warhead is directly stamped out, the bullet case and the primer are drawn with the process, and the interference is assembled, and the equipment has been purchased." ”

Liu Daming nodded, and Lin Fei said at this time: "Old Liu, your task now is to train sailors and sailors quickly, it is not easy to cultivate talents in the navy, you have to learn mathematics for a while, the shooting and ranging in the navy are based on mathematics, and people who don't know mathematics can't be in the navy at all." ”

In the next few days, Lin Fei taught the craftsmen how to use punches, machine tools, grinders, milling machines and other mechanical processing equipment, which are driven by steam engines.

After five days and nights of teaching, Lin Fei finally taught the manufacturing process of the rifle, but Lin Fei still couldn't rest, because he needed to calculate the ballistic characteristics of the rifle bullet to determine the height relationship between the gauge and the crosshair, and the sights produced in this way could be used.

Lin Fei wrote down a large series of ballistic solution equations on paper, either differential equations or partial differential equations, and a large page of matrix equations.

What made Lin Fei even more painful was that many equations could not be solved analytically, and they had to be solved numerically, which made Lin Fei miserable, but it was not good, and it was impossible to shoot accurately without the relevant number of guns, so that the lethality of automatic rifles was not as good as that of ancient Chinese firearms.

Lin Fei was in a hurry, there was a sudden knock on the door, Lin Fei casually said please come in, as soon as the door opened, Lin Fei looked up, saw Ling Xue walking in, casually said "Hello", and then lowered his head to count those numbers, Ling Xue walked to Lin Fei with a smile, sat opposite him, watched him count the number jù, and looked at it for a long time before saying, "Are you drawing talismans?" ”

Lin Fei stopped his pen with a smile and said, "I'm calculating the number of ballistics." ”

Ling Xue let out an "oh", and Lin Fei asked, "Do you have something?" ”

Ling Xue said, "I want to talk to you about Master Guan. ”

Lin Fei asked, "What's wrong with Master Guan?" ”

Ling Xue said: "Although Master Guan has also cheered up a little now and put himself into his work, his spirit is still very poor, it stands to reason that you have killed the **Paslow patriarch to avenge his wife and daughter, he should cheer up." ”

Lin Fei shook his head and said: "After killing the ** Paslow patriarch, his wife and daughter can't come back, so he can't cheer up, this knot can only be solved by himself, and it is useless for others to say anything." ”

Ling Xue said: "I suspect there must be something hidden here!" ”

Lin Fei hurriedly asked, "What is the secret?" ”

Ling Xue said: "I can't tell, it's just that feeling anyway." ”

Lin Fei said: "You take the time to talk to him, or find someone close to him to talk to, what is his secret, say it, we can help him." ”

Ling Xue said "um" and stopped talking, so Lin Fei lowered his head and continued to calculate, Ling Xue suddenly said, "Captain, did you say this thing is good-looking?" ”

As soon as Lin Fei looked up, he saw that Ling Xue had a girl's purse in her hand, embroidered with a few small flowers and two butterflies, Lin Fei exclaimed, "Did you do it?" It's so beautiful. ”

Ling Xue said, "Of course I did it", with a smug and proud look on her face, she put her purse in front of Lin Fei, and said with a smile: "Give it to you." ”

Lin Fei didn't think much about it, and said directly: "I'm a big man, what's the use of asking for this thing?" ”

Ling Xue smiled and said, "Don't you like these delicate gadgets?" For example, the knot, isn't the purse I made much better than the knot? ”

Lin Fei remembered the scene where Chiyo Mika gave herself a rope before the battle, and said with a smile: "That knot has a special meaning. ”

Ling Xue smiled and said, "Then you just won't accept my gift?" ”

Lin Fei smiled and said, "How can it be done?" I can't let go of something so beautiful. Lin Fei stretched out his hand and took the purse in his hand, and said with a smile: "I collected it." ”

Ling Xue smiled and nodded, turned around and took her leave. When Ling Xue walked away, Lin Fei only heard Chen Jingui's voice outside: "Captain, the automatic rifle has been built!" ”