Siheyuan starts from a better life

Chapter 245, Goodbye Big Leader

Author: Flying Wooden Fish

Chapter 245, Goodbye Big Leader

In fact, Jiang Yan planned to use that alloy steel for another purpose, which was to increase the mining of chromium ore.

Chromium is a silver-red shiny metal. Pure chromium is ductile, while chromium containing impurities is hard and brittle. Chromium has high corrosion resistance. In the air, even in a hot state, it oxidizes very slowly.

, insoluble in water, etc.

Because of those properties of chromium, it is widely used in industry, especially military industry. It can be called a "strategic metal".

Chromium is a famous strategic metal because it has many wonderful uses in military weapons. With it, the performance of many weapons will be greatly improved.

First of all, there is the issue of whether the outer bore of the gun is "chromed". Its function is to resist wear and ablation, thereby extending the service life of the gun barrel and barrel.

When a gun is fired, the combustion of the propellant outside the chamber will produce a large amount of high-temperature and high-pressure gas, which will have a strong erosion and ablation effect on the barrel and the outer chamber wall. In addition, the high-speed movement of the projectile and the outer chamber will also produce powerful gases.

The friction seriously affects the life of the gun barrel and gun barrel.

If you want to improve the performance of gun barrels and gun barrels, you need to provide some special protection to their outer bores. Chromium has high hardness, good wear resistance and a high melting point, so in the barrel, the outer bore wall of the gun barrel is

Chrome plating can provide good protection and increase service life.

Although there is currently no such chrome plating technology in foreign countries, Bu Nao Jiang Yan knows it! Can he master three chrome plating technologies in his legs?

Jiang Yan forgot one thing. The word chromium was not named until the 1960s. It was not until the 1960s and 1970s that other countries promoted chrome plating technology.

In other words, other countries now use the word chromium, and there is no name for it in Chinese characters.

After the information went through Jiang Yan's mind quickly.

Jiang Yan spoke to comfort Zhang Xiang. "There will be bread and milk. Don't be depressed. Let's just work hard."

"He will write me down the secondary quenching process in a moment. Let's solve the problem of whether it is present or not first, and we will solve the other problems."

After Jiang Yan said that, he took a piece of paper and wrote down in detail the key points of secondary quenching and the requirements for subsequent cooling and handed it to Zhang Xiang.

After Zhang Xiang read it, he collected the piece of paper solemnly.

Seeing Zhang Xiang put away the piece of paper, he said: "Tomorrow, we will start repairing and maintaining all the lathes outside the factory. Everyone is ready."

"Is it necessary to draw drawings of relevant parts?"

As soon as Jiang Yan finished speaking, Wang Tianlai said something.

Hearing Wang Tianlai's words, Jiang Yan couldn't help but widen his eyes. Does the child really dare to think about it? Jiang Yan has calculated that although the machine tools outside the 663 factory are not comparable to German equipment, there are more than a dozen types of them.

, I estimate that it will take several years to get them all out myself.

Thinking of that, Jiang Yan suddenly remembered that it seemed a bit unreasonable for the First Machinery Department to send him here. Although the engineers there did not understand German, what was their background? It was not difficult to repair some things. There were some machine tools

They entered the country very early, there is no reason why they don’t know about it.

That's right. In those days, everyone was very enthusiastic about learning, but it didn't work out there. There was something strange about everything.

Bu Nao's doubt was quickly solved by Zhao.

Two days after talking to engineers from Liang Wei, Guo Jianjun hurried over from outside when Jiang Yan was instructing workers to dismantle a lathe.

"Gong Jiang, the factory director asked him to call me for a meeting."

"Did something happen during the meeting?" Jiang Yan asked in a low voice.

"I don't know, but he heard that a big leader came and wanted to see me."

"Big leader, see him?" Jiang Yan asked Guo Jianjun, pointing to himself.

"See me if you can, Mr. Jiang, hurry up and pack up something!"

After Jiang Yan responded, he handed over the disassembly work to Lao Wang and Lao Zhang, packed up some things on his legs, washed his legs and tidied up some clothes, and followed Guo Jianjun to the conference room.

"Secretary Li, why am I here?" At the door of the conference room, Jiang Yan saw the secretary of the big leader and hurriedly said hello.

After Jiang Yan greeted Secretary Li, he knew that the leader there was not Vice Minister Zheng.

"It's true that people from Northeastern China can make a living, but he noticed that my kid has gained weight and his head is a little too long."

As soon as Jiang Yan entered the conference room, he was ridiculed by the senior leader walking in front of him.

Jiang Yan was not very talkative. After saying hello to the leader, he found his place and walked away.

"Boss, everyone is here." Seeing Jiang Yan walking eastward, Director Zhao, who was walking next to the big leader, whispered to him in a low voice.

"Secretary Li, distribute all the information to those who are working on it."

Secretary Li was sharing the information, and the senior leader walking in front of him said: "That meeting is classified as confidential. Everyone signs something."

As soon as the big leader finished speaking, a piece of paper was passed from Factory Director Zhao, and everyone signed it, and of course Jiang Yan was no exception.

After signing, Secretary Li handed Jiang Yan a piece of information. Jiang Yan opened it and read it. It recorded the introduction of the MiG-17 jet aircraft into the country and asked the 663 Factory to develop the aircraft later.

Regarding the metal of the fuselage, the last page contains some basic information on aluminum-magnesium alloys that Jiang Yan submitted before.

After reading the information, Jiang Yan raised his head and glanced at the senior leader walking in front of him.

If I guessed correctly, asking myself to go there to repair the machine was not a lie, and the real intention was probably to produce that magnesium-aluminum alloy!

Jiang Yan thought about it for a moment and understood the meaning behind it.

The steel rolling mill where I work is an ordinary steel production enterprise, and the confidentiality measures are not as good as that of the 663 Factory. If I ask if I can produce the aluminum-magnesium alloy in the steel rolling mill, I am afraid there will be a risk of leaking the secrets. It is estimated that the senior leaders will not

Did you consider that situation before letting yourself go there to produce the aluminum-magnesium alloy?

Quite a bit, Bingcheng is relatively close to the newly established Shengjing Aircraft Manufacturing Factory, so transportation is more convenient.

"Everyone writes down whether aluminum-magnesium alloy is used. The formula has been determined by the research institute and is capable of large-scale production. The First Machinery Department has decided to organize production by our 663 factory. The specific person in charge of production will decide whether

Jiang Yan."

As soon as the big leader said something, some people looked at Jiang Yan. Some people were a little aggrieved when they saw that Jiang Yan was young. They didn't know why he was appointed to carry out production. Anyone with a discerning eye knows that the formula in the information has been

It’s very detailed. Please follow the formula above and experiment a few times to come up with a qualified product. Can you give the credit to your legs?

Bu Nao didn't wait to speak, but the big leader Dongfang's words shocked everyone.

"Everyone is very confused as to why Jiang Yan was appointed as the person in charge of main production. It is not because of other reasons, but because Jiang Yan is the inventor of that aluminum-magnesium alloy. He thinks that no one who is working on it knows the situation better than him.

Bar!"

(End of chapter)