The importance of the blast furnace is self-evident. It is the core of pig iron smelting. First, it supplies steel to the downstream metal smelting. Second, it directly supplies materials to the grenade production line of the Military Industry Bureau.
"As for the blast furnace, Chen Qizi has organized the Military Industry Bureau to build an experimental blast furnace with a daily output of 2 tons of pig iron, which can meet the production of grenades to a certain extent. However, at present, the Military Industry Bureau still focuses on researching 60mm mortars and medium-sized rifles as its primary goals. "
"So what's the current status of these two weapons projects?"
"The 60 mm fortress project is progressing rapidly. This is due to the fact that the arsenal has the production materials and design drawings left by the former Central Soviet Area Arsenal. Chen Qizi led the arsenal's technical workers and Comrade Zhao Zhangcheng to improve on the original basis. Referring to the Brand 60 mm fortress The overall design of the cannon has been completed and is about to enter the production and manufacturing stage."
"The formal rifle is more difficult, and the design drawings have not yet been started. Not long ago, the technical staff of the entire project had differences on the technical route. Some people thought that the technical route of seamless steel tube barrels could be adopted and the barrel drilling process should be abandoned. , saving man-hours and costs. Others are firmly opposed to seamless steel pipes and insist on the barrel drilling route. Although the cost is higher, the quality and accuracy of the barrel can be guaranteed."
"Oh? Can't this seamless steel tube be used to make a gun barrel?"
"We can and cannot make gun barrels from seamless steel tubes. This is our traditional understanding. But in fact, it has big flaws. The life of gun barrels made of seamless steel tubes is very short. In the past, the Central Soviet Area Arsenal used seamless steel tubes. A small batch of gun barrels were made, and there were no problems at first. However, after firing only 200 rounds, the rifling began to be flattened and the chamber exploded. Nowadays, this barrel manufacturing process has been abandoned around the world, and barrels have been selected. Drill route.”
The current era of manufacturing gun barrels is divided into two main routes:
1. Seamless steel tube + rifling marking. The advantage is that it saves man-hours and costs and improves manufacturing efficiency. The disadvantage is that the barrel life and strength are average.
Second, the advantages of barrel drilling + rifling engraving are very significant: high precision, high strength, and long life. The disadvantages are opposite to the advantages of seamless steel pipes. The process is cumbersome, requires more work hours, and the cost is higher.
There is no way. The efficiency of barrel drilling has always been a world-class problem in the field of mechanical manufacturing. It requires both high precision and high efficiency. How can there be such a beautiful thing?
As for the seamless steel pipe, it seems very beautiful, but in fact it has a serious flaw - it cannot withstand the high chamber pressure generated when bullets are fired for a long time. This sentence means that one or two hundred rounds of bullets may be fired, and the entire barrel It will be scrapped.
"I Have a Picture Book of Ghosts and Gods"
How high is the chamber pressure at which the bullet is fired?
300MP!
This is several times or even ten times that of blunderbuss, black powder shotguns and low-pressure firearms.
"It's true that I am ignorant. Regarding this issue, what is Chen Laizi's decision?"
"Gun barrel drilling, and this decision means that we must also overcome the problem of gun barrel drilling... In addition, the problem of lack of professional and technical personnel is still extremely serious. Chen Qizi asked me to transfer several Anti-Japanese University students the day before yesterday. I heard that the boss was asked to transfer Comrade Zhao Zhangcheng to make suggestions for the 60-year-old project."
"Yes, he even bribed me with a can of meat."
"Hahaha……"
The trio burst out laughing heartily.
"Chen Laizi has a smart mind and many clever ideas. It seems that he is right to be the head of this military industry bureau. In order to solve the coke problem and other technical problems, this guy specially wrote a letter of help to Yu Hua."
"Speaking of Yu Hua, I have to say that he can build a sulfuric acid tower, design a coke oven, and create asymmetric cryptography theory with Professor Hua Luogeng. He is truly worthy of the professor's evaluation of being 'worthy of an army.'"
"Regarding Yu Hua, comrades from the security department sent me an analysis report, which speculated that Mr. Zhang San might be Yu Hua. There are two reasons. First, Mr. Zhang San once reminded Lin Wan on paper in Peking No. 4 Middle School. , wrote a collection of mathematical errors. Yu Hua was studying at Peking No. 4 Middle School at the time; secondly, Mr. Zhang San had top code-breaking abilities, which meant that he was very good at mathematics. Yu Hua met both of these points. He founded Asymmetric Cryptozoology theory and mathematical level are extremely high.”
As soon as these words came out, the atmosphere in the cave changed. Regarding Mr. Zhang San, this was one of the top secrets of the entire organization.
There are currently two judgments about Mr. Zhang San. One is that Mr. Zhang San used a pseudonym, and the other is his real name.
However, after such a long secret investigation, the organization still has not found Mr. Zhang San.
"What do you think about this speculation?" The words became slightly serious.
Could Mr. Zhang San be Yu Hua?
This guess is not ordinary.
So far, there are seven true identities of Mr. Zhang San. With this guess, the total reaches eight.
However, the first seven guesses are far less important than this one.
"I am opposed to it. Judging from the information currently available, Mr. Zhang San has been abroad. He is about thirty-five years old. He has successively given us information on deciphering red secrets, mechanical drawings, and the Barefoot Doctor's Manual, involving mathematics and cryptography. He studies, mechanics, medicine and many other fields, but Yu Hua has never gone abroad so far, and his identity and age do not match. The possibility that Mr. Zhang San is Yu Hua is very low."
"Where's the boss?"
"I don't think Mr. Zhang San is Yu Hua either. Although this guess is reasonable, it is full of loopholes. Unless there is strong evidence to prove it, we must rely on evidence and not conjecture."
"This is my view as well. This analysis report is temporarily sealed."
"Report, urgent call from the Northern Ministry!" Suddenly, a correspondent entered the cave, reported the situation, left a message, and turned around to leave.
"Is this news about Marco Polo Bridge?"
"No, it's more important news than Marco Polo Bridge..."
After the telegram reached the boss, just a second later, an obvious sound of swallowing saliva could be heard in the quiet cave.
"A single smelting takes 30 minutes, with a daily output of 96 tons and an annual output of 35,000 tons of steel... Is this true? I feel like I am dreaming." The boss's voice began to tremble.
silence.
Deathly silence.
The oxygen top-blown converter technology described in the cable gave them the ultimate shock. Even though they had experienced countless dangers and strong winds and waves, they were also lost in the face of the terrifying productivity behind this technology.
No one can remain calm in the face of oxygen top-blown converter technology.
No.
Since the outbreak of the third industrial revolution, human civilization has been able to develop on a large scale and quickly build the material foundation of modern civilization, which comes from steel smelted by oxygen top-blown converter technology.
In later generations, the annual output of hundreds of millions of tons of crude steel was unusual. However, in this era, even the annual output of tens of millions of tons of steel is terrifying, enough to easily make a country join the club of industrial powers.
As for the annual production of 100 million tons of steel, it is unthinkable.
This is the era of big oxygen steelmaking, a world built by science and technology.
PS: I’ve finished everything. Sorry, I’ve been busy with funerals these past few days, and I’m exhausted mentally and physically. There will be more later.
