readx; In the Qinwangzhuang Arsenal, Zhu Youzhen, Sun Yuanlong, Wei Zhen and several backbone craftsmen sat in a group, just like a meeting of workshop workers. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 Seeing that Zhu Youzhen had no scruples, and that he attached great importance and respect to the craftsmen themselves and their various suggestions, everyone's tension gradually disappeared, and the atmosphere of discussion became more and more enthusiastic.

"The villain thinks that the casting cannon is slow, and the casting is slow." Wei Zhen was the first to speak, "First the wax mold, then the sand mold, and after it is naturally dried, it will be burned into a pottery mold, and it will have to be broken after casting, and the mold will have to be recast next time." Not only is the speed slow, but also the mold cannot be exactly the same each time, and a slight deviation in size will cause the shell and the gun chamber to not fit closely, affecting the firing effect. ”

"We all know what you said," Sun Yuanlong glared at his apprentice and said, "The problem is that the material used to cast the cannon is burnt copper water, and the temperature is extremely high, and if you use a mold like wood, it will burn it all at once." ”

Wei Zhen smiled and said: "Of course the wooden mold can't be used, can you use an iron mold?" ”

"You're stupid!" Sun Yuanlong heard this and shouted loudly, "Although the melting point of iron is higher than that of copper, after the copper water is cooled and solidified, won't it form a big lump with the iron mold?" Do you still want to smash the iron mold outside? ”

"Master, let me finish!" Wei Zhen said aggrievedly, "I think two semicircular iron molds can be buckled together to form the shape of a cannon breech." When casting, a thin layer of sand or other high-temperature resistant materials is applied to the inner layer of the iron mold, and then buckled together. After pouring copper juice and cooling it thoroughly, as long as you open the two iron molds and knock off the thin layer of sand, it will be! ”

Several craftsmen are connoisseurs, and they know that it is feasible when they hear it. Sun Yuanlong also muttered: "I didn't expect this method. However, there must be a gap between the two iron molds, and what should I do if it leaks when casting? ”

Another craftsman named Zhao Xiaosi also interjected: "Factory director, this is okay. As long as it is tightened with an iron ring on the outside, we will polish the edge of the iron mold as flat as possible so that it will fit tightly, and it will not leak. It's just that the inner layer of the iron mold is sanded, which is not easy to grasp. Applying too thin will not work, and too thick will not easily dry. ”

"And if this method doesn't work, it will waste a lot of manpower and material resources, so I just thought about it before, but I didn't dare to say it." Wei Zhen was also worried.

"It's okay, go for it!" Zhu You said, "A few of you can set up a technical research team and hand over the other work at hand to others, specializing in the study of iron mold casting cannons." Don't be afraid of failure, failure is the mother of success! ”

Before leaving, Zhu Youzhen explained to Sun Yuanlong the focus of his work in the coming period. First of all, the arsenal must be expanded, and the existing 200 people are far from meeting the needs of the Qin soldiers.

Zhu Youzhen's idea was to divide the arsenal into three parts, take out the part of making black powder separately, and re-select a site outside the city to build a factory. Because gunpowder is very dangerous after all, if it accidentally explodes, it will inevitably cause heavy losses, so it is better to be cautious.

The remaining two large pieces, one is to make guns, and the other is to cast cannons. Because the technology of casting cannons is not mature enough, there is no need to expand the scale for the time being, as long as a few technical leaders tackle key problems. And the production of guns must be increased, for which it is possible to recruit 200 craftsmen. The craftsman's monthly salary is not a problem, just collect it from the royal government.

Zhu Youzhen's calculation is that the flintlock pistol is the most advanced firearm of this era, and even the European powers are still popular. If you can't make it yourself, but you have to buy it from a foreign country, not to mention whether you can sell it or not, even if you can buy it, it will inevitably be very expensive, and you will be slaughtered by someone. And recruiting craftsmen by themselves, except for the need to pay wages and purchase raw materials, there is no other cost, so this account is still 100% worthwhile.

The output of flint Lumi guns should be increased to one per day as much as possible, and they should be installed as soon as possible. At the same time, the production of bird guns cannot be stopped, because at this stage, because of the shortcomings such as difficult manufacturing and slow rate of fire, Lu Mi guns cannot replace bird guns in battle, and can only be used as a supplement to bird guns. However, the production of bird guns should also be based on flint, and arquebus strikes should be gradually eliminated.

The reason why Zhu Youzhen was in a hurry to install the flint Lu Mi gun was that in addition to the fact that this kind of gun does not use a fire rope and can be used on windy and rainy days, the most important factor is the long range of the Lu Mi gun. One step is five feet, one hundred and fifty steps, which is equivalent to nearly two hundred and fifty meters. This distance is far beyond the average bird and short bow, and only the longbow can be compared. But of course, the accuracy of the longbow and firearms are not the same, and Zhu Youzhen has already regarded the Lu Mi gun as a simple version of a sniper rifle in his heart!

As a modern person, Zhu Youzhen knows the power of snipers in war. Don't look at him as just a person and a gun, if he is properly concealed, cleverly camouflaged, and accurate marksmanship, he can withstand dozens or hundreds of ordinary soldiers and even artillery. The long-distance killing stunt will have a strong deterrent to the enemy and indirectly play a role in suppressing firepower, so it has the reputation of "infantry long-range artillery". It is said that in modern warfare, ordinary infantry consumes tens of thousands of rounds of ammunition on average to kill an enemy, while snipers only need to average more than one round.

Although the Rumi Gun cannot be compared to a real sniper rifle, it is also an unparalleled long-range killing weapon in this era. Zhu Youzhen's idea was to first equip some of the special combat personnel with Lu Mi Gun so that they could easily carry out assassination missions. You don't need to touch the target anymore, as long as you choose a good sniper position and solve the problem with one shot, the other party may not even know how to die.

Secondly, the large army of the Qin soldiers should also be equipped with a small number of Lu Mi guns. In large-scale combat, although it cannot replace the bird, it can snipe important targets such as the opponent's commander from a distance. The so-called man does not walk without a head, a bird does not fly without a head, and how can the commander fight without a battle, so the role of the Lu Mi gun is not smaller than that of a large number of bird guns or artillery.

After Sun Yuanlong made a "military order" and promised to deliver at least ten Lumi guns by the end of the month, Zhu Youzhen left the arsenal with Yan Ling with satisfaction. Yan Ling was of course very proud because of Zhu Youzhen's promise to let the special combat team take the lead in equipping Lu Mi Gong.

However, Xie Sheng soon got the news, rushed over in a hurry, and said a little angrily: "Your Highness, you can't be too partial!" The last general knew that the special combat team was very important, but the first batch of Lu Mi guns couldn't all be given to Yan Ling, so he had to leave a few for the Qin soldiers and let the soldiers start training first! ”

"Say Cao Xiang, Cao Xiang will arrive." Zhu Youzhen laughed and said, "If you don't come to find this king, this king will still look for you!" Rest assured, there will be drops in guns, and there will be drops in guns, but before that, we still have an important task to do, that is, to reorganize the Qin army system! ”