At the end of October, Li Zhi had nothing to do, and slightly improved the production process of nitrocellulose. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

In order for the bullet to receive continuous thrust in the barrel, the firing rate of the propellant needs to be controlled. In the era of black powder, a satisfactory rate of ignition could be obtained by controlling the size of gunpowder particles. If nitrocellulose is used as an emitter, the rate of propellant combustion can be controlled by changing the nitrogen content of the nitrocellulose.

In later generations, nitrocellulose with a nitrogen content of more than 12.5% was called an explosive because the nitrogen content was too high and the combustion rate was too fast. Nitrocellulose, which has a nitrogen content of less than 12.5%, does not have such a violent combustion rate and is called a flammable solid. When the nitrogen content drops to a certain level, nitrocellulose cannot even burn in a closed chamber.

There are many ways to control the nitrogen content of nitrocellulose, for example, by controlling the ratio of nitric acid and sulfuric acid, of course, the easiest way is to change the water content in the mixed acid. Li Zhi read a paper before crossing and knew that when the water content in the mixed acid solution reaches 20%, the nitrogen content in nitrocellulose will drop sharply to 11%.

Nitrocellulose, which contains 11% nitrogen, not only does not deflagrate, but is even used to produce celluloid plastic.

Of course, with Li Zhi's current industrial level, it is impossible to determine the content of various components in the acid. All Li Zhi could do was to test the power of nitrocellulose produced by various concentrations of nitric acid and sulfuric acid, and find a process that was most suitable for Fanjiazhuang's Mini rifle.

After more than ten days of busy work and countless experiments, Li Zhi finally found the most suitable process. Under this process, Li Zhi's rifle can achieve considerable bullet destructive power with the least amount of propellant. Li Zhi settled on this process and began to produce nitrocellulose on a large scale.

New gunpowder is not easy to preserve, but the actual combat effect is very good.

In November, Li Zhi's soldiers began training in the use of the new gunpowder. With a little practice, the veterans quickly got used to the new gunpowder. The new gunpowder burns without residue and does not need to be cleaned up, allowing the soldiers to shoot at a much faster rate. Instead of firing only three rounds a minute, soldiers can now fire four salvos a minute.

On November 19, Li Zhi learned from Han Jinxin's informant office that the Tartars had begun to garrison Yizhou and attack Jinzhou.

After several years of development, Han Jinxin's informant newspaper now has informants in the north and south of the country. Although Han Jinxin has not yet penetrated into the inside of the Tartars, in the Ningjin area of the Ming Dynasty, Han Jinxin has eyeliner. As long as there is any movement on the front line, Han Jinxin can immediately get the news and report it to Li Zhi.

Han Jinxin has now become Li Zhi's third eye, constantly monitoring movements across the country.

After Li Zhi got the news of the Tatar siege of Jinzhou, he was still quite surprised. Li Zhi had heard that the Tartars were training firecrackers outside the pass, and he didn't know how many people they trained. Now that the Tartars have been killed, it is believed that this army of soldiers and horses has been trained.

Li Zhi knew the history roughly, and knew that there was a decisive battle between the Manchu Qing and the Ming Dynasty at the end of the Ming Dynasty called the Battle of Songjin, which seemed to take place in the fourteenth year of Chongzhen. Li Zhi knew that the result of that great battle in history was a complete victory for the Manchus, and the Ming army was defeated, and from then on it was no longer capable of fighting against the Manchus. After the Battle of Songjin, the demise of the Ming Dynasty became a matter of time.

Li Zhi secretly said that since the Qing soldiers surrounded Jinzhou City with heavy troops, the Ming Dynasty would definitely send troops to rescue them. This fight is probably the Songjin War in history. It's just that this era now has its own variable, and I don't know which fork in the road history will take.

But it was bound to be a decisive battle for history.

In fact, Li Zhi didn't know that the Songjin War in history happened earlier. And because of Li Zhi's crossing, history has undergone many changes, and the Songjin War was a few months late.

However, regardless of whether Li Zhi crossed over or not, the weakness of the Ming army did not change. The Jingping of the four seas in the Ming Dynasty was only caused by Li Zhi's lone army's southern expedition and northern war. Li Zhi believed that once the Battle of Songjin began, the Ming army would not be able to win. It is estimated that it will not be long before the imperial court will recruit itself into battle.

On November 21, Li Zhi sat in the third hall and talked to his family.

Li Zhi's daughter is one year old and has developed baby teeth and was just weaned last month. Li Zhi held his daughter in his arms and said with a smile: "My daughter is so good-looking, like a mother." ”

When her daughter heard Li Zhi's words, she seemed to understand and laughed in Li Zhi's arms.

Li Zhi's eldest son, Li Huan, saw that his sister was hugged, and crawled to Cui He's to ask his mother to hug him. But Li Huan is four and a half years old, and Cui He is pregnant again, where can he be moved? Cui He hugged Li Huan for a while and put him down. Li Huan stood helplessly in place for a while, then walked to Li Zhi's side and grabbed the corner of Li Zhi's clothes, as if hoping that Li Zhi would also hug him for a while.

Li Zhi didn't pay attention to Li Huan, but said: "My beautiful daughter is going to marry a name." ”

Li Huan shouted loudly: "Daddy! I'll pick it up! ”

Li Zhi smiled and said, "How many words do you know?" Dare to give people a name? ”

Li Huan said: "Mr. Teaching teaches me every day, and I can already write two hundred words!" My sister's name is Li Yuanyuan! ”

Li Zhi ignored Li Huan and asked Cui He, "Does Madam have a name in mind?" ”

Cui He was stunned, shook his head and said, "I won't choose a name, husband, let's think of a name!" ”

Li Zhi groaned and said: "If a girl wants to be virtuous and virtuous, let's call Li Shu." ”

Cui He nodded and said, "Husband is right, let's call Li Shu." ”

Li Zhizheng was talking to Cui He, but saw a personal soldier running in from outside.

"Uncle, there are a few eunuchs who have come to the door to deliver the holy decree."

Li Zhi nodded, knowing that this was the holy decree to recruit him into battle, and said, "Let them in." ”

After a while, a eunuch holding up the holy decree walked into the third hall of the General Military Mansion with several eunuchs. When the eunuch saw Li Zhi, he first handed over the holy decree to the eunuch behind him, bowed to Li Zhi, and said, "Our family has seen Xingguobo!" ”

Li Zhi fixed his eyes and found that it was the eunuch surnamed Huang who came to announce the decree last time, and said with a smile: "Gonggong Huang is polite!" ”

The eunuch smiled when he saw that Li Zhi still remembered him. He took back the holy decree and sang loudly: "Xingguo Bo, the governor of the Houjun Governor's Mansion Zuodu, and Li Zhi, the chief military officer of Tianjin, received the decree." ”

Li Zhibai fell to the ground and accepted the holy decree.

The eunuch sang: "Fengtian carries the emperor's edict that 70,000 Dongnu have besieged Jinzhou recently, and the war is urgent. Li Zhibu, the general soldier of Tianjin, was strong and indispensable. Now Li Zhi's soldiers and horses are dispatched out of the customs to kill slaves, and he will go to Ningyuan within a month, and return to the control of Hong Chengchou, the governor of Jiliao. ”

After listening to the eunuch's chanting, Li Zhi stood up and took the holy decree.

The eunuch smiled and said to Li Zhi: "Uncle Xingguo, the state is in danger, thanks to the battle of Uncle Xingguo!" ”

Li Zhi smiled and said to the eunuch: "Gonggong Huang doesn't know, the Son of Heaven transferred my soldiers and horses to fight, and I have conditions." ”

The eunuch was sent to Tianjin to deliver the decree, and he was afraid of this one. His face suddenly became very ugly, and he asked, "What conditions?" ”