(Thank you for your reward from your friend Jiutian Yanyu~~)

"oh?"

Li Zicheng's thoughts were interrupted and he turned to look over.

"I've seen the King of Breaking!"

Zhang Nai bowed and bowed.

"No need to be polite, talk quickly!"

Li Zicheng urged.

Gao Yigong said: "Brother-in-law, brothers have found out clearly. Li Xin gave himself a name, called the Chinese Revolutionary Army, and called him the commander-in-chief. After leaving Luoyang, he flew all the way to Huaiyang and forcibly attacked Gaoyou. He should still be in Gaoyou City now."

"Chinese Revolutionary Army? Haha, Tangwu Revolution, this kid has such a big ambition!"

Li Zicheng stroked his sparse beard and smiled coldly.

Gao Yigong also nodded and said, "But this name is pretty good, majestic. I said brother-in-law, it's not a big deal for our trespassing army to call us. We still have to have a majestic name."

Zhang Nai said anxiously: "Uncle Yigong, let's talk about this matter later. Let's rescue your wife quickly. Gaoyou is next to the Grand Canal. How can the court allow him to cut off the transportation of the canal? He will send troops to attack soon. With his few troops, how long can he last? It won't be a big deal if he dies, because he is afraid that his wife and Lanzhi will be implicated."

Gao Yigong pondered: "Brother-in-law, why don't I go and run away and bring my elder sister and Lanzhi back. It's not a big deal to keep it next to the Li surname. There have been rumors in the army. Although I believe that my elder sister will be forced by that kid, I would rather die than follow me. I'm afraid that others will gossip around. I will have a bad reputation for my brother-in-law."

Li Zicheng was a little hesitant. To be honest, he did not have any husband-wife relationship with Gao Guiying, and his wife was taken away by Li Xin also made him ashamed. But when Gao Guiying came back, what should Miss Wang do? What will the Shangluo Mountain people think?

Li Xin could see the consequences of Gao Guiying's return, and Li Zicheng could see it. He even had the idea of ​​letting Gao Guiying die in Gaoyou for a moment, but this idea was quickly suppressed. After all, ignoring Gao Guiying would hurt the heart of the Lao Ba Team. The Lao Ba Team is his basic base. Shangluoshan troops are not his confidants, and he doesn't trust them. No matter how many troops there are, he only trusts the Lao Ba Team.

So he nodded and said, "That's thank you for your hard work. Pay attention to the secrets. Don't have too many people. Xiao Naizi has good skills and is calm when encountering problems. I'll ask Xiao Naizi to go with you. Then I will pick a few smart girls from the Jianfu camp. Just... Huimei and Huiying, leave tonight, don't say anything."

During the battle, Gao Guiying adopted some girls from poor families. Her surname was Gao, and her name was Hui. Huimei and Huiying were the two most outstanding girls in the Jianwo Camp. They were not only skilled in martial arts, but also skillful.

Zhang Nai suddenly showed joy. All the eighth teams knew that he and Huimei were in love. Although it was dangerous to bring Gao Guiying and his daughter to Li Xin's territory, it was hard to travel with Huimei, but danger was nothing.

Li Zicheng seemed to see through Zhang Nai's thoughts, and smiled and waved: "Go!"

"Get orders!"

Gao Yigong and Zhang Nai handed over.

...

Refining ductile iron is not an easy task. The key is that modern gold treatment can easily measure the proportion of each element, but Li Xin did not have this condition. The smelting level in the late Ming Dynasty was very bad. Just a concept of gray mouth and white mouth, Li Xin turned it over and over and tried to interpret it in words that people could understand at that time. In the middle of winter, he actually talked about it dry mouth.

Because of the rapid cooling, white-mouth cast iron is brittle and hard, and the graphitization is not completely graphitized, cast guns will seriously reduce the performance of the artillery. For example, the Qing guns during the Opium War were all white-mouthed cannons. In order to make up for the weakness of brittleness, they can only be thickened and heavier, which is very inconvenient. The gray-mouthed iron is strong and graphitized relatively completely. Whether it is a spring or a cast gun, it is very suitable. Moreover, the graphitized structure is also easy to metal cutting and processing.

The formation of white-mouthed mouth is related to quenching, and the cooling speed is either slow or slow. In this regard, Li Xin was powerless and could only rely on the blacksmith to master the temperature based on his experience. After all, adding basic elements is only one aspect of refining ductile iron. On the other hand, the blacksmith needs to grasp the temperature.

Li Xin attached great importance to ductile iron, and stayed at the scene to watch them work with the blacksmith, and personally checked the finished product. The blacksmith did not dare to be lazy at all, and everyone was full of energy.

In the blacksmith shop, the scorching temperature made people sweat. On the third day after the New Year, the first ductile iron spring was released. Because it was used as a gun, the spring was small and the strength and toughness were OK. Li Xin called the gunpowder again and modified the flintlock rifle with the blacksmith.

In fact, in terms of cost-effectiveness, modification is not as good as making it now. Moreover, the quality of the Ming army's barrel is not good, which is far less than using ductile iron to shoot the barrel. Due to the increase in strength and toughness, the barrel can be made longer and thicker, filled with more launching drugs, and obtain greater power and a longer range. What's more, the sand rod has also been made. In the past, a barrel was released in three months, but now it is rolled up with a sand rod. As long as the cast iron sheet can keep up, a sand rod can produce more than a dozen barrels a day, which has been improved by hundreds of times. However, it is now experimental, so it is still on-site modification.

Another day later, the flintlock rifle was successfully modified. Looking at the novel firing device, everyone was excited. Xing Wu shouted: "Commander-in-Chief, I'll do this shot!"

"Okay, be careful!"

Li Xin nodded and handed over the flintlock rifle.

At a distance of sixty steps, a pair of iron armor was hung. Xing Wu first took a tube of paper shell gunpowder, bite the outer skin, poured the gunpowder, and then took the bullet. Due to the need for airtightness, the diameter of the bullet was slightly larger than the barrel, and it needed to be knocked in with a hammer and poked it to the end. However, today the bullet was soaked in butter, and just tapped it gently, and then poked it to the end easily.

Xing Wu picked up his gun, aimed at the iron armor, and hooked the trigger!

A small fire flashed by, and a cluster of smoke came out of the bolt. The target in front of him was already shocked, and a soldier shouted: "Puncture through the lower abdomen!"

Thunderous cheers burst out around!

Erju praised: "Commander-in-Chief, this gun is better than a bird gun. It doesn't need to be ignited, it can be used even on rainy days. Haha, if Shi Kefa dares to come again, we will bring in a group of people to fight him on rainy days!"

"That's a good idea!"

Li Xin nodded with a smile, and handed Master Chen a drawing and said, "During this period, we will focus on building flintlock rifles. If we do this, we can temporarily drag the artillery business."

The drawings are drawn with bayonet patterns. Since the hardness of ductile iron is greater than that of carbon steel and takes into account toughness, it is possible to use ductile iron to make bayonets, which is easier than steel knives and effectively reduces costs.
Chapter completed!