[Second Thursday Round!] I opened this mountain...... Well, robbery! Robbing collections, tickets, and rewards...... Hey, don't go, don't give a comment :)]

At the foot of Nanshan Mountain, on a flat plateau, in the shady green grass, a circle of people dressed in short clothes sat around, but in the center of the circle was Chu Fan in a long robe.

"Let's take a look at this iron material first," Chu Fan picked up the Lu Mi gun in his hand and rubbed the black and shiny gun pipe, "Look, can we get this kind of iron material?" ”

Yesterday afternoon, the two Fujianese sent by Fan Zhenglong reported to Chu Fan that the shogunate seemed to have been fooled, and they really thought that the Shimazu family had done the sneak attack on the Sankeidai camp, so during this time, people with a Satsuma local accent inquired about Sankeidai in Nagasaki, and it seemed that the Shimazu family was eager to clear the suspicion.

This made Chu Fan overjoyed, he was originally worried that the shouting voices had been exposed, but now it seems that he has been fooled.

In a good mood and in good spirits, early this morning, Chu Fan summoned the gun pipe craftsman and all the blacksmiths who were dug from the Ministry of Industry to discuss the production and transformation of Lu Mi Gong - if you want to make Lu Mi Gong, of course, you must first solve the material problem; The blacksmith's shop had not yet been built, so he could only sit on the grass.

Hearing him ask, a man in the circle who was as black as a charcoal head took Lu Mi Gong and looked at it carefully, and said hesitantly, "Qi Yu Gongzi, this is the best steel...... I can do it, but it takes too much work. ”

Chu Fan looked at him and remembered that he was Xiaohua's father Wang Denghai, "Master Wang, tell me, if you come to make this steel, how much can you produce in a day?" ”

"How can one day be enough?" Wang Denghai's eyes widened, "I don't do anything else, if I just stack raw clinker, it is estimated that I can hit about ten catties in three days." ”

Several other blacksmiths also nodded in agreement, and some were still muttering, "I'm slow, it will take four days." ”

"Son, this is the so-called 100 steels." The craftsman who had been dug up by the Ministry of Works to make the pipe further added that his name was Tang Jiniu, and he was thirty or eight years old Chinese New Year's Eve, but his fine wrinkles and his calm temperament made him look like a little old man.

Chu Fan secretly sighed - this outrageously backward productivity!

We have to find a way to change it, or we can't make a few catties of steel in a month just at this production speed.

But he is not a smelting professional, so where does he understand how to make steel?

"This master is right," Wang Denghai nodded, "It's just that I look at the steel material of this pipe, but it is not the best, it is not the kind of steel that makes weapons, and it is estimated that it is similar to the steel material used to make armor...... One pound of pig iron and three pounds of wrought iron. ”

As soon as he came out of the pig iron and wrought iron, a certain term in Chu Fan's memory was turned out at once: steel filling method!

Thanks to a certain point in his previous life, Chu Fan read a lot of historical and military online novels, including the passage of pig's feet to improve the steelmaking method, which is used in this steel-filling method, whether the pig iron is burned and poured on the wrought iron or the wrought iron is burned and poured on the pig iron Chu Fan can't remember, but the method should be like this.

Thinking of this, Chu Fan carefully asked Wang Denghai about the process of striking iron: it turned out that the pig iron bars and wrought iron bars were stacked together, and after they were burned to a red-hot state, they were repeatedly hit with an iron hammer until the two fused into one; Repeat this process over and over again, and more and more steel will be obtained.

After figuring out the current production situation, Chu Fan asked in a deep voice, "If you can sinter the pig iron and pour it into the wrought iron bars, won't it be able to greatly speed up the speed?" ”

Wang Denghai glanced at Chu Fan and stopped talking, in fact, he was slandering - he was really a rich boy who didn't know anything, thinking that things were too simple, so pig iron could be burned?

"The prince is really well-read and strong," that Master Tang saw that Wang Denghai did not speak, of course he knew what he was thinking, in order to avoid embarrassment, he quickly explained, "Pig iron is burned and poured into wrought iron, this is the method of filling steel, and there are craftsmen in Henan during the Jiajing period who have used this method to make steel, but over the years, this method has been lost...... Pig iron can't be burned! ”

Does pig iron burn?

Chu Fan was a little confused, and Master Tang saw that he was silent, and added, "Master Gongzi, even this steel filling method, as far as the villain knows, must be repeatedly forged before it can be used...... It's just that the number of times this forging is less. ”

Chu Fan was thinking about melting pig iron at the moment, and he asked Wang Denghaidao, "Master Wang, what is your iron furnace burning?" ”

"Hui Gongzi, it's charcoal," Wang Denghai replied without thinking about it, "I just built the charcoal kiln in the past two days." ”

No wonder! Chu Fan suddenly realized that although he didn't know the process of steelmaking, he knew the basic knowledge: steelmaking and steelmaking, shouldn't you use coke?

The reason for using coke is because charcoal does not reach the temperature that can melt pig iron!

Coke!

As long as there is coke, the bottleneck of the steel filling method can be easily solved!

As for forging, this is a better solution - who stipulates that manpower must be used? Isn't wind and water power both used for forging? Of course, there is no urgency in this now, and it is not too late to solve it in the future.

Thinking of this, Chu Fan stood up and said proudly, "Master Wang, please take me to the charcoal-burning kiln...... I'll solve the matter of burning pig iron! ”

Everyone stood up with him, but they didn't think much of what he said - this little show didn't know how to strike iron, and he dared to boast about such a sea mouth.

The group came to the foot of a relatively steep mountain in the west of the camp, only to see that on the almost vertical cliff wall, a cliff hole more than one person high had been dug out, which was full of split wood, and it seemed that Wang Denghai was ready to seal the kiln and burn charcoal.

Chu Fan asked him to move all the firewood out, and then he had a cart of good anthracite coal from the brick kiln - which was used to burn the brick kiln - and stuffed it into the cliff cave.

Chu Fan told Wang Denghai how to burn charcoal before, how to burn it now, so Wang Denghai sealed the cliff cave with mud with full doubts, piled firewood around it, and lit it on fire.

Because this kiln needed to be burned for three days, Chu Fan led the master Tang back to the camp under construction, and after calling the other two craftsmen who had dug up, he took out the flint flint fire gun that Sun Yuanhua had tried to make, and began to think about how to transform the Lu Mi gun.

The three craftsmen first carefully examined the flintlock device, and praised the ingenuity of the conception -- this flintlock flintlock was trial-produced by the Military Bureau of the Ministry of War, and of course they knew nothing about it - they were all people who had dealt with the firecracker all their lives, and they were naturally extremely excited to see such a delicate and ingenious firecracker.

"Uncle Xiao, I can't see you everywhere, but you are here." With a cry of joy, Sun Hedou took Zhang Ziyu and walked over quickly.

As soon as he saw the flintlock pistols in the hands of the three craftsmen, Sun Hedou became excited, "Isn't this my father's self-made firebolt?" …… Uncle Junior, my father is full of praise for your method of self-fire! ”

"Thanks to Senior Brother Sun's love," Chu Fan said with a smile, "This flint device should actually be thought up by me and Senior Brother Sun." ”

"Why should Uncle Xiao be too humble?" Sun Hedou shook his head and said, "My father said, without your guidance, he would never have thought of this...... Flintlock device! ”

The two of them talked to themselves, but Master Tang's eyes widened when they heard it.

Such an ingenious device, was actually conceived by this young son?