Siheyuan starts from a good life

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

Chromium is a silver-white 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 and is insoluble in water.

Because chromium has these properties, it is widely used in industry, especially military industry. It can be said to be 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.

The first is the problem of "chromium plating" on the inner bore of the gun. 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 in the chamber will produce a large amount of high-temperature and high-pressure gas, which will have a strong scouring and ablation effect on the barrel and the inner wall of the barrel. In addition, the high-speed movement of the projectile and the inner chamber will also produce a powerful The friction seriously affects the life of the gun barrel and barrel.

If you want to improve the performance of gun barrels and gun barrels, you need to provide some special protection to their bores. Chromium has high hardness, good wear resistance and high melting point, so chromium plating on the barrel and the inner wall of the barrel can provide good protection and increase the service life.

Although there is currently no such chrome plating technology in China, Jiang Yan knows it! He has three chrome plating technologies in his hands.

However, Jiang Yan forgot one thing. The word chromium was not named until the 1960s. It was also in the 1960s and 1970s that my country promoted chrome plating technology.

In other words, our country has not yet introduced a name for the word chromium in Chinese characters.

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

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

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

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

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

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

"Do I still need 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. This kid really dared to think. Jiang Yan had counted that although the machine tools in the 663 factory were German equipment, there were more than a dozen types of them. It would probably take a few years to get all this out by myself.

Thinking of this, Jiang Yan suddenly remembered that it seemed a bit unreasonable for the First Machinery Department to send him here. Although the engineers here did not understand German, it was not difficult to repair some machine tools. They had already entered the country a long time ago, so there is no reason why they didn’t know about it.

What’s more, everyone is very enthusiastic about learning these days, so why can’t it work here? There is something strange about all this.

However, this doubt was quickly solved by Zhao.

Two days after talking to the two engineers, Jiang Yan was directing workers to dismantle a lathe when Guo Jianjun hurried over from outside.

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

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

"I don't know, but I heard that a big leader has come and wants to see you."

"Big leader, see me?" Jiang Yan asked Guo Jianjun, pointing at himself.

"Yes, I'm seeing you. Jiang Gong, please clean up quickly!"

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

"Secretary Li, why are you here?" At the door of the conference room, Jiang Yan saw the leader's secretary and quickly stepped forward to say hello.

After Jiang Yan greeted Secretary Li, he understood that the leader here was Vice Minister Zheng.

"It's better to live in Northeastern China. I think you've gained weight, and your head has grown a bit."

As soon as he entered the conference room, Jiang Yan was ridiculed by the senior leader sitting above.

However, Jiang Yan didn't reply. After saying hello to the leader, he found his seat and sat down.

"Boss, everyone is here." Seeing Jiang Yan sit down, Director Zhao, who was sitting next to the big leader, whispered to the big leader.

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

Secretary Li was sharing the information, and the senior leader sitting above said: "This meeting is classified as confidential. Please sign it."

As soon as the big leader finished speaking, a piece of paper was passed from 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 looked at it. It recorded the country's introduction of MiG-17 jet aircraft, followed by a request for the Factory to develop the aircraft and put it on board. Regarding body metals, the last page contains some basic information on aluminum-magnesium alloys that Jiang Yan submitted before.

After reading this information, Jiang Yan raised his head and glanced at the senior leader sitting above.

If I guessed correctly, it was a lie that I was asked to come here to repair the machine. The real intention was probably to produce this magnesium-aluminum alloy!

Jiang Yan thought for a moment and understood the meaning.

The steel rolling mill where I work is an ordinary steel production enterprise, and the confidentiality measures are far better than those of the 663 Factory here. If I produce the aluminum-magnesium alloy in the steel rolling mill, I am afraid that there will be a risk of leaking the secrets. I guess the big boss has considered this. This situation made me come here to produce this aluminum-magnesium alloy.

Another point is that Bingcheng is relatively close to the newly established Shengjing Aircraft Manufacturing Factory, so transportation is more convenient.

"Everyone writes that it is an aluminum-magnesium alloy. This formula has been determined by the research institute and has the ability to be mass-produced. The First Machinery Department has decided to organize production by our 663 factory. The specific person in charge of production is Jiang Yan. .”

As soon as the big leader said this, some people looked at Jiang Yan. Some people were a little aggrieved when they saw 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 is very detailed. Yes, as long as you follow the formula above and experiment a few times, you can come up with a qualified product. This is where you get the credit!

But before he could object, the leader's words shocked everyone.

"Everyone is very confused as to why Jiang Yan is appointed as the main person in charge of production. It's not because of anything else, but because the inventor of this aluminum-magnesium alloy is Jiang Yan. I don't think anyone who is working on it knows the situation better than him!"