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Buchen also knew that it was a bit too hasty to get on the twelve-pounder cannon at the beginning, but he couldn't help it, he had been looking at it for more than a year, and it was inevitable that he would be a little impatient in his heart, in order to enhance his strength as soon as possible, he would inevitably want to play the Great Leap ~ Advance. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Fortunately, playing the Great Leap ~ in this world, his capital is quite sufficient, and all kinds of technical information alone are inexhaustible, and even if he is arrogant enough, it is okay to stuff the technical data of the atom ~ bomb or hydrogen ~ bomb to Li Blacksmith and they can toss, of course, even if these high-end things are placed there, if the technical accumulation is too shallow, it will not be created in hundreds of years......

Buchen is not so arrogant, the cannon casting information he is now stuffing to Blacksmith Li and Coppersmith Lu is not a particularly high-end thing, in his previous life, it is the technology of the 19th century, which belongs to the kind of conceptual innovation, there is no threshold for things, as long as there is enough money and energy to invest in it, it will soon be effective.

Buchen's cannon casting method is called "iron mold casting method", in fact, it was invented by the Chinese, during the Opium ~ Chip War, Zhejiang Jiaxing County Cheng Gong Zhenlin was transferred to the Ningbo military camp by his superiors, ordered to rush to make artillery, due to the urgency of the situation, he used his ingenuity and unremitting research spent half a year to invent this cannon casting method.

Compared with China's previous lost wax casting method, his iron mold casting method has the three advantages of low cost, high quality and fast production, which can be said to directly upgrade China's casting technology to the world's first-class level at that time, and you must know that Europe began to use the iron mold casting method to cast cannons in 1873 thirty years later. However, because of the political environment at the time, although Gong Zhenlin's casting method was very powerful, it still failed to make China's national defense capability reach the level of European powers Chinese......

The specific method will not be described in detail here, just briefly talk about it, this iron mold casting method is actually quite simple, first use wax as the target model, wrap the clay to make the mud fan, use the wax loss method to remove the wax to obtain the mud fan, and then turn the iron mold from the mud fan, and finally cast the target object by the iron mold.

With this method, all metals with a melting point lower than iron can be cast, and even pig iron can be cast directly after treatment. The only technical requirement for this method is to be able to smelt liquid pig iron.

As for Buchen, his open-hearth furnace has been able to smelt liquid steel, and liquid pig iron is naturally not a problem.

However, for Buchen's proposal to directly use steel casting cannons again, Li Blacksmith and Lu Coppersmith directly gave a negative opinion, the meaning of these two craftsmen is very simple, since it is the first time, it is better to be fully familiar with this technology first, and it is possible to wait for the technology to be fully mastered later.

After all, it's a bit unrealistic to want to run without learning how to walk, isn't it?

After all, these two people are experts, so they have no choice but to listen to their opinions.

So under the auspices of Li and Lu, and with the full cooperation of Director Lu, the first cannon casting in another world was in full swing.

This time, because the cast iron was used, the steel-making open-hearth furnace was not used, but the iron-making blast furnace was used, which increased the regenerator, replaced the stronger refractory bricks, and the fuel has been replaced with coke, which is already extremely powerful in the world, and its furnace temperature can completely melt the pig iron into a liquid state.

Before the liquid pig iron was smelted, Coppersmith Lu had already taken his two sons to make the clay model used for casting cannons - the lost wax method was the housekeeping skill of Coppersmith Lu's family, and it was not too easy to perform.

After the clay fan is completed, it is the work of turning the cast iron mold, and this step is not difficult, and it is also successfully completed under the personal control of Li Blacksmith and Lu Coppersmith.

In this way, the preparations for casting the cannon are all completed!

On this day, Buchen came to the steel mill with all his partners.

"Henry, is this going to be a cannon?" Fei Fei asked excitedly, her eyes popping into little stars.

Buchen nodded to her, and said proudly: "It's directly a twelve-pound pig iron cannon!" ”

"How's the twelve-pounder cannon power? How is it compared to the 800-millimeter cannon we used to use? Fei Fei asked again.

The corners of Buchen's mouth twitched, and he said in his heart that Fei Fei was really unlearned and unskilled to the extreme, how could a twelve-pound front-loading smoothbore gun that fired a solid iron ball be compared to an eight-hundred-millimeter rear-loading rifled gun that fired armor-piercing and explosive shells? These two things are not the product of the same level at all, right? Even the most common mortars of the World War II era were much more powerful than twelve-pounder guns, because people's shells were filled with high-explosive ~ explosives, not black ~ gunpowder.

The twelve-pounder cannon that Buchen is casting now, speaking in conscience, is actually the level of the red-coated cannon at the end of the Ming Dynasty, but even so, in this world, it is already an epoch-making progress, and it is used to defend the city and siege the city to kill all the bed crossbows and trebuchets in seconds, even if the arrows and cannonballs of those bed crossbows and trebuchets have been blessed with magic!

"Fei Fei, I'll tell you so, you will definitely see an eight-hundred-millimeter cannon or a cannon of similar power appear in reality in your lifetime, but it is definitely not now!" Buchen said angrily.

"In my lifetime?" Fei Fei rolled her eyes, and immediately lost interest in the cannon that was about to be cast.

Xue smiled faintly on the side and said, "No, if I am still in the nobility of the Grand Duchy of Eternal Night, I will definitely hate you!" ”

Buchen was stunned for a moment, and then asked inexplicably: "Why?" ”

"Why?" Xue was angry and funny, "You put this kind of thing out, is there still a place for our blood clan's iron horse?" ”

He touched the back of his head without disobedience, and said a little scoundrelly: "But you are our companion now!" ”

"That's right, but I'm still scared! Promise me, don't give this to Charlie Andris, okay? Xue looked at Buchen pitifully.

This is the first time Xue has shown such an expression to Buchen, Buchen naturally will not refuse her, originally giving the cannon to King Charles is something he will not consider, his original intention of creating this kind of mass killing weapon is actually just so that when he is not in the capital, this factory can have the power of self-defense, and by the way, when the future catastrophe comes, it can fight to the death.

"Don't worry, Snow, I won't give the artillery to Charlie." Buchen swore and said.

"Molten pig iron is out!" At this moment, a shout with an Osan accent suddenly sounded.

He hurriedly raised his eyes and saw that the workers worked together to open the door of the blast furnace, and then a stream of molten metal reflecting the fire in the furnace flowed out of the furnace along the inclined steel rails that had already been laid, and entered the iron mold that was just connected to the end of the track!

The inside of each abrasive of this iron mold is brushed with two layers of special slurry, after brushing the two petals together, with iron hoops tightened, baked, section by section, very reliable, at this time under the metal solution watering, there is no trace of leakage, it can be seen that the process is excellent!

After a few moments, the mold was filled, and the next thing was the cooling work, and the workers went about their work, but the minister walked to the mold and clenched his fists with great ambition!

He was a little excited, it wouldn't be long before he could have the world's first artillery!

"No, give me some of this first shot!" Lao You came to Buchen's side and asked with some embarrassment.

Buchen was reluctant to give up this opportunity to be the first shot in the world, but he couldn't refute Lao You's face, so he had to say: "Guess the box, win the cannon!" ”

"It's done!" Lao You agreed, and then lost three defeats and two wins to Buchen in the next guessing boxing.

"Lao You, don't be discouraged, you must have a chance to shoot something!" Buchen tried his best to hide his pride, patted Lao You on the shoulder and said.

Lao You's face was a little stinky, but he was a bright and upright person, since he lost, he would naturally admit it, but he just said "the second shot belongs to me" to Buchen, and turned around and flashed.

Buchen looked at his back and smiled, a little helpless.

Soon, the cooling of the molten metal was completed, and Coppersmith Lu and Blacksmith Li drove the idlers and others to the distance, and they commanded the workers to unload the molds wrapped with the artillery one by one, first the two-petal iron mold wrapped around the outer diameter of the artillery, and then the inner mold of the iron core.

However, because it was directly molded by abrasives, and the inner and outer walls were not carefully polished, the artillery at this time was still very rough, and it looked like it was made by Yamano Murafu, and it was not very pleasing.

It's just that Buchen is not surprised, he only cares about the most important question: "Can you test the gun?" ”