In fact, Jiang Yan is ready to take out this alloy steel for another purpose, that is, to increase the mining of chrome ore.

Chromium is a silvery-white lustrous metal, pure chromium is malleable, and chromium with impurities is hard and brittle. Chromium has high corrosion resistance, oxidizes slowly in the air, even in a red-hot state, and is insoluble in water.

Because chromium has these properties, it is very widely used in industry, especially in the military industry, and it is okay to say that it is a "strategic metal".

It is said that chromium is a well-known strategic metal, because it has many wonderful uses in military weapons, and with it, the performance of many weapons will be greatly improved.

First of all, there is the problem of "chrome plating" in the inner chamber of the gun, which is anti-wear and ablation, thereby prolonging the service life of the barrel and barrel.

When the gun is fired, the combustion of the propellant in the chamber will produce a large amount of high-temperature and high-pressure gas, which has a strong scouring and ablation effect on the inner chamber wall of the barrel and the barrel, coupled with the high-speed movement of the projectile and the internal chamber will also produce strong friction, which seriously affects the life of the barrel and barrel.

If you want to improve the performance of the barrel and barrel, you need to have some special protection for their bore. Chromium has high hardness, good wear resistance and a high melting point, so chrome plating on the inner chamber wall of the barrel and barrel can play a good role in protecting and improving the service life.

Although there is no such chrome plating technology in China, Jiang Yan will! He has three chrome plating techniques at his disposal.

However, Jiang Yan forgot one thing, the word chromium, it was only named in the sixties, and the promotion of chrome plating technology in China was also in the sixties and seventies.

In other words, there is no naming of the word chromium in Chinese characters in China.

This information went through quickly in Jiang Yan's mind.

Jiang Yan comforted Zhang Xiang out loud. "There will be bread, there will be milk, don't be frustrated, let's just come on."

"I'll write down the secondary quenching process for you in a while, let's solve the problem of whether there is or not, and we're solving the other problems."

After Jiang Yan finished saying this, he took a piece of paper, wrote out the key points of the second quenching and the key points of the later cooling in detail on the paper, and handed it to Zhang Xiang.

After Zhang Xiang read it, he put this piece of paper away very solemnly.

Seeing Zhang Xiang put away the piece of paper, he said: "Tomorrow, we will start to repair and maintain all the lathes in the factory, and everyone is ready." ”

"Do you still need to draw drawings of the relevant parts?"

As soon as Jiang Yan's words fell, Wang Tianlai said a word.

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 these machine tools in the 663 factory were German equipment, there were more than a dozen types of it, and it was estimated that it would take a few years to get them out.

Thinking of this, Jiang Yan suddenly remembered, it seems that it is a bit unreasonable for the first machine department to send himself over, although the engineers here do not understand German, where is the foundation, it is not difficult to repair some of the things that get up, and some machine tools have entered the country very early, and it makes no sense that they don't know.

What's more, everyone's enthusiasm for learning is very high this year, how can it not work here, all of this reveals a kind of weirdness.

However, this doubt was quickly solved by Zhao.

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

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

"Meeting, is something going on?" Jiang Yan asked in a low voice.

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

"Big leader, see me?" Jiang Yan pointed to himself and asked Guo Jianjun.

"Yes, I'll see you, Jiang Gong should clean up quickly!"

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

"Secretary Li, why are you here?" At the gate of the conference room, Jiang Yan saw the secretary of the big leader and hurriedly stepped forward to say hello.

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

"It's still a northeast rice feeder, I see that your kid has eaten fat, and this head has grown a little."

As soon as he entered the conference room, Jiang Yan was ridiculed by the big leader sitting on it.

However, Jiang Yan didn't talk back, and after saying hello to the big leader, he found his seat and sat up.

"Leader, 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 materials to the people who are doing it."

Secretary Li was dividing the information, and the big leader sitting on it said, "This meeting is classified as confidential. Everybody sign it. ”

As soon as the big leader's voice fell, a piece of paper came from Director Zhao, and everyone who passed it signed on it, 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, which recorded the introduction of MiG-17 jet aircraft by the country, followed by the request of the 663 factory to develop the fuselage metal on the aircraft, and the last page was some basic information on the aluminum-magnesium alloy submitted by Jiang Yan before.

After reading this information, Jiang Yan raised his head and glanced at the big leader sitting on it.

If you are not mistaken, it is fake to let yourself come here to repair the machine, and the real intention is probably to produce this magnesium aluminum alloy!

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

The rolling mill where I am located is an ordinary steel production enterprise, and the confidentiality measures are far less good than the 663 factory here, if I produce this aluminum-magnesium alloy in the rolling mill, I am afraid that there will be a risk of leakage, and it is estimated that the big leader will also take this situation into account before letting himself come here and produce this aluminum-magnesium alloy here.

Another point is that Bingcheng is relatively close to the newly established Shengjing Aircraft Factory, which is also more convenient for transportation.

"Everyone writes a copy of aluminum-magnesium alloy, this formula has been determined by the research institute, with the ability of large-scale production, a machine department has decided to organize production by our 663 factory, and the specific person in charge of production is Jiang Yan."

As soon as the big leader said this, some people looked at Jiang Yan with different eyes, and some people were a little indignant when they saw Jiang Yan young, and they didn't know why he was designated to produce, this clear-eyed person knows that the formula on the information is already very detailed, as long as you follow the above formula, you can come up with qualified products after a few experiments, which is to send the credit to your hands!

But before he could open his mouth to object, the words of the big leader shocked everyone's eyes.

"Everyone is very puzzled why Jiang Yan is designated as the main person in charge of production, not because of anything else, or because the inventor of this aluminum-magnesium alloy is Jiang Yan, I think you don't know the situation better than him!"

(End of chapter)