At the end of October, Li Zhi had nothing to do, so he slightly improved the nitrocellulose production process.
In order to obtain continuous thrust for the bullet in the barrel, the burning rate of the propellant needs to be controlled. In the black powder era, a satisfactory burning rate can be obtained by controlling the size of the gunpowder particles. If nitrocellulose is used as the propellant, the burning rate can be obtained by changing
The nitrogen content of nitrocellulose controls the propellant burning rate.
In later generations, nitrocellulose with a nitrogen content of more than 12.5% was called explosives because the nitrogen content was too high and the burning speed was too fast. Nitrocellulose with a nitrogen content of less than 12.5% did not have such a violent burning speed and was called
It is a flammable solid. When the nitrogen content drops to a certain level, nitrocellulose cannot even burn in a closed gun bore.
There are many ways to control the nitrogen content of nitrocellulose. For example, it can be achieved by controlling the ratio of nitric acid and sulfuric acid. Of course, the simplest way is to change the water content in the mixed acid solution. Li Zhi read a paper before traveling and knew
When the water content in the mixed acid solution reaches 20%, the nitrogen content in the nitrocellulose will drop significantly to 11%.
Nitrocellulose with a nitrogen content of 11% not only does not deflagrate, it can even be used to produce celluloid plastic.
Of course, with Li Zhi's current industrial level, there is no way to measure the content of various components in the acid solution. All Li Zhi can do is to test the power of nitrocellulose produced with various concentrations of nitric acid and sulfuric acid to find the most suitable
The manufacturing process of the Fanjiazhuang Mini rifle.
After working for more than ten days and countless experiments, Li Zhi finally found the most suitable process. Under this process, Li Zhi's rifle can achieve considerable destructive power of bullets with the least amount of propellant. Li Zhi put the
This process was finalized and large-scale production of nitrocellulose began.
New gunpowder is not easy to preserve, but the actual combat effect is very good.
In November, Li Zhi's soldiers had begun training using the new gunpowder. The veterans quickly got used to the new gunpowder after a little practice. The new gunpowder would not produce residue after burning, and there was no need to clean the gun bore, allowing the soldiers to
The shooting speed has been greatly improved. Originally, only three bullets could be fired per minute, but now the soldiers can complete four volleys per minute.
On November 19, Li Zhi learned from Han Jinxin's information that the Tatars had begun to station troops in Yizhou and attack Jinzhou.
After several years of development, Han Jinxin's informants now have informants all over the country. Although Han Jinxin has not yet penetrated into the Tatars, Han Jinxin has informants in the Ningjin area of the Ming Dynasty. As long as there is any movement on the front line, Han Jinxin will immediately
You can get the news and report it to Li Zhi.
Han Jinxin has now become Li Zhi's third eye, always monitoring the movements across the country.
After Li Zhi got the news that the Tatars were besieging Jinzhou, he was quite surprised. Li Zhi had heard that the Tatars were training gun soldiers outside the pass, and he didn't know how many people they had trained. Now that the Tatars have been killed, I guess it is this group.
The soldiers and horses have been trained.
Li Zhi had a rough knowledge of history and knew that there was a decisive battle between the Manchu and Qing Dynasties in the late Ming Dynasty and the Ming Dynasty called the Songjin Battle, which seemed to have occurred in the 14th year of Chongzhen. Li Zhi knew that the result of that battle in history was a complete victory for the Manchu and Qing Dynasties.
, the Ming army was defeated and was no longer able to fight the Manchus. After the Songjin War, the demise of the Ming Dynasty became a matter of time.
Li Zhi secretly thought that since the Qing soldiers surrounded Jinzhou City with heavy troops, the Ming Dynasty would definitely send troops to rescue it. This fight would probably be the Songjin War in history. But this era now has its own variables, and I don’t know where history will go.
A fork in the road.
But this must be a decisive battle that determines history.
In fact, Li Zhi didn't know that the Songjin War originally happened earlier in history. However, because of Li Zhi's time travel, many changes had taken place in history, and the Songjin War was a few months later.
However, no matter whether Li Zhi traveled through time or not, the weakness of the Ming army did not change. The peace of the Ming Dynasty in this year was only due to Li Zhi's lone army fighting in the north and south. Li Zhi believed that once the Songjin War started, the Ming Dynasty would be at peace.
The army will definitely not be able to win. It is estimated that it will not be long before the imperial court recruits itself into battle.
On November 21st, Li Zhi was sitting in the third hall, talking to his family.
Li Zhi's daughter is already one year old and has grown deciduous teeth. She was just weaned last month. Li Zhi held her daughter in his arms and said with a smile: "My daughter is so beautiful, just like her mother."
When the 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 his sister being hugged, so he climbed up to Cui He and asked his mother to hug him. However, Li Huan was already four and a half years old, and Cui He was pregnant, so how could he be hugged? Cui He hugged Li Huan for a while and then put him away.
He put it down. Li Huan stood there helplessly for a while, then walked to Li Zhi and grabbed the corner of Li Zhi's clothes, as if hoping that Li Zhi would hug him for a while.
Li Zhi ignored Li Huan and said, "My beautiful daughter wants to marry with a name."
Li Huan shouted: "Dad! I'll get it!"
Li Zhi smiled and said, "How many words do you know? Do you dare to name people?"
Li Huan said: "The teacher 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 for a moment, shook his head and said, "I don't know how to choose a name. Please think of a name for me, husband!"
Li Zhi pondered and said: "If a girl wants to be virtuous and virtuous, let's call her Li Shu."
Cui He nodded and said: "My husband is right, let's call her Li Shu."
Li Zhizheng was talking to Cui He, but saw a soldier running in from outside.
"Uncle, some eunuchs came to the door to deliver the imperial edict."
Li Zhi nodded, knowing that this was the imperial edict to call him into battle, and said: "Let them come in."
After a while, a eunuch holding high the imperial edict walked into the third hall of the General Military Mansion with several eunuchs. The eunuch saw Li Zhi, first handed the imperial edict to the eunuch behind him, bowed to Li Zhi, and said: "
Our family has met Uncle Xing Guo!"
Li Zhi took a closer look and found that it was the eunuch named Huang who came to announce the decree last time. He cupped his hands and said with a smile: "Eunuch Huang is so polite!"
The eunuch smiled when he saw that Li Zhi still remembered him. He received the imperial edict and sang loudly: "Uncle Xing Guo, the left governor of the rear army governor's mansion, Li Zhi, the chief military officer of Tianjin, received the edict."
Li Zhi prostrated himself on the ground and accepted the imperial edict.
The eunuch sang: "According to the emperor's edict, 70,000 Eastern slaves have recently besieged Jinzhou. The war is urgent. The troops of Li Zhi, the commander-in-chief of Tianjin, must be strong and must be used. Now Li Zhi's troops are sent out to kill the slaves, and they will rush to Ningyuan within a month and return.
The governor of Jiliao, Hong Chengchou, controlled the situation."
After listening to the eunuch's chant, Li Zhi stood up and accepted the imperial edict.
The eunuch smiled and said to Li Zhi: "Uncle Xingguo, the country is in critical condition, and it is all thanks to Uncle Xingguo that he went to war!"
Li Zhi smiled and said to the eunuch: "I don't know, Eunuch Huang, but the emperor dispatches my troops and horses to go to war, and I have conditions."
The eunuch who was sent to Tianjin to deliver the decree was afraid of this. His face suddenly became very ugly, and he asked: "What are the conditions?"
