Super military empire

Liu Yijiu ignored Wang Shunyi, and did not continue to talk about the underground base below.

Zheng Hao probably didn't know the research room in that place.

The people in there have never been seen above, and Liu Yijiu didn't know their specific situation, and he didn't know what projects he was studying.But from my eyes, it really has something to do with nuclear technology. This kind of thing is top secret, and it's best not to be contaminated.

"Okay, I'll go to the 9th district first to check the situation, and I don't know if the tail stabilized armor-piercing shelling bomb they made has come out..." Liu Yijiu didn't plan to continue talking about this matter.Wang Shunyi didn't understand this aspect very well, Zheng Hao didn't understand it at all.

It is estimated that he has not been to the nine districts.

"It's no use researching, why there are no tanks here. In addition, this kind of armor-piercing projectile is not as easy to handle as you think. Materials? Without materials, everything is useless!" Wang Shunyi said to Yun Fei.

Jia Yiming is in the second zone. Although he is still under surveillance, he is obviously the chief engineer of the superalloy project there.

As for the person in charge of the second district, Liu Yijiu knew that he was Zhao Maoping who was in charge of the materials in the third district. After the base returned to normal, some of the managers and technicians who had been delegated returned to their posts.

Otherwise, Zhao Maoping would not be bored and run to see what Liu Yijiu wanted to do.

Aviation aluminum, this is the shortcoming of the Republic, whether it is aerospace, this material is in large demand.

"The materials must go over and see. I don't know if Teacher Jia has made out our new type of gun steel. That's something I took out of the Americans..." Liu Yijiu lied now and just opened his mouth. Come.

"I think you should go back to rest and rest. You are already a family member..." Zheng Hao said with a sinister expression.

Just now these two guys used professional techniques to destroy him, and he felt that he should take revenge.

Lao Wang, he can't help but Liu Yijiu is different.

"I have a family with a fart. I've only heard of sticking mandarin ducks, but I have never heard of such a thing..." Liu Yijiu rolled his eyes and said nothing at all. Quickly left.

After they returned to the base, they didn’t know what was going on. The base directly allocated a room to him, and then got new red quilts and sheets in it. Li Rui did not refuse at all, and moved directly. Go there.

Under the instigation of Zheng Hao and Xie Heping, a group of aunts moved Liu Yijiu's things directly into the new house.Originally, it was said that when they were preparing for the New Year, they would drink the wedding wine together in the cafeteria, so that the two of them were married.

This comrade Liu Yijiu was very tender and tender. Since then, he has been hiding in it and never went out.

In the Revolutionary Marriage, there are many hotline marriages, but this shouldn't have anything to do with Liu Yijiu.

Anyone would be disgusted with such a thing, not to mention that he clearly knew that Li Rui was arranged here to monitor his spy, which is even more unacceptable.

No one can stand such a thing.

"Xiao Liu, in the past, it was not rare to mess with mandarin ducks. Before marriage, most people couldn't even see what the partner looked like. You are much better than them. You have known each other for a long time. Now..." Zheng Hao wailed at Liu Yijiu's back with a bad face.

Liu Yijiu ignored him, speeded up his pace, and quickly disappeared in the passage.

"I can only blame Lao Li for being too impatient, and for not letting the girl go to the battlefield, there is nothing fart..." Wang Shunyi sighed.

How can he not know Liu Yijiu's heart?

No one wants to fall asleep next to him, a female agent who monitors him.

"Isn't that worrying about my son-in-law being snatched by the Situ family..." Zheng Hao still smiled.

Ignoring the words of the two behind, Liu Yijiu took a few deep breaths before calming down the anger in his heart.He had no choice but to use silence to resist this matter.

The second district is also in a valley.The site selection of the Jiuyuan Base must have used a lot of effort at the beginning. There is a low mountain in the middle, surrounded by nine valleys. From the low mountain in the middle to the outside, ten ridges stretch out, and they are quite regular. .

If you look at it from the sky, you have to sigh with the extraordinary craftsmanship of nature, as if it was specially prepared for the existence of the Ninth Hospital, as there are exactly nine districts in the surrounding nine valleys, and the headquarters of the Ninth Hospital is in the middle...

The second area is the area with the most factories and the least number of people in the entire base.There are basically not many operators here, and most of them are technicians.There are too many types of materials, and even here, the backup technical equipment is not the most complete.

There are only some very important and critical technologies.

All these equipments were imported from abroad.Many of them are not produced domestically, high-frequency furnaces from Russia, vacuum furnaces from East Germany, high-temperature furnaces from Switzerland, smelting furnaces from Ukraine... These equipments do not occupy a large area, after all, they are used for experiments. At the same time, the small furnace is also used for small-scale production of materials used in the base.

In the 1950s, like high-frequency furnaces and vacuum furnaces, these were top-notch equipment. I don't know how the country got them. Now, these furnaces don't work.Many alloys need to be heated above 2000°C. For example, some alloy materials in powder metallurgy, such as various tool materials, there is no way to melt the metal. The powder metallurgy method can only be used to sinter these materials at high temperature and high pressure. Together...

Tungsten, which is most used to increase the strength of materials, is used in weapons and equipment, and its melting point is as high as 3410°c. Molybdenum, which is used to increase the toughness of materials, has a melting point of 2610°c.There are other metal elements that play a very important role in the strength and performance of weapons and equipment, and their melting points are also very high. It is impossible to use the smelting manufacturing process.

Liu Yijiu was helpless about these.

With more advanced equipment, the technical conditions of this era cannot be produced at all!

After entering the second area, I greeted many technicians wearing white coats outside in the sun and walked inside.On the material side, there are many workshops, these workshops are not big, but basically every workshop will have a key material manufacturing technology and related equipment.

Jia Yiming has been studying high-temperature alloys from the beginning, and after entering this, it is still high-temperature alloys.Due to the high strength requirements and harsh working conditions of this kind of superalloy, it is composed of some high-temperature resistant metal alloy elements, which is a key material for the manufacture of aerospace engines.

"Xiao Liu, are you here?" Liu Yijiu just walked outside the second district management center building and saw Zhao Maoping rushing out, the old man Zhao who scared him back then.

"Uncle Zhao, what are you doing in a hurry? I came over to see the situation, now many projects are waiting for the progress of the research here..." Liu Yijiu said hello, very helplessly.

Material is the key.

"Then you just came, the formula you provided, through various analysis experiments, proved that the strength of the material is indeed very high, but now we have encountered a problem, the various ingredients inside are very uneven, and there are more impurities inside, which affects The performance of the material..." Zhao Maoping introduced Liu Yijiu into the workshop while introducing the situation.

Liu Yijiu frowned immediately.

He has provided a lot of material formulas here.

I don't know what kind of formula it is.

"What kind of material is it?"

"Tungsten alloy steel with rare earth elements and the cannon steel process formula you provide..."

"Is tungsten alloy steel tested and analyzed for the purity of tungsten powder? Is the time of holding and holding pressure according to the data I provided? In addition, is the formula of gun steel remelted in an electroslag furnace?" Liu Yijiu A series of questions came out.

"The purity of tungsten alloy steel has reached 99.985%, the purity of molybdenum has also reached 99.976%, and other elements have been purified after arriving at the base..."

"This purity is simply not enough. The purity of tungsten powder must reach 99.998%. Molybdenum must also have the same purity, and the physical state of the powder must be passed through a 200-mesh sieve. The fine powder is used to mix and add vanadium. These elements are good..." Liu Yijiu found the key point all at once.

The purity of various raw materials is not enough. When high temperature sintering is carried out at the last moment, there is naturally no way to ensure that the sintered material can have high purity. Too many impurities will eventually produce more pores in the material. Thereby affecting the performance of the overall material.

"Such a high purity? There is no way to experiment in a short period of time..." Zhao Maoping is also an expert in this area. It is too difficult to get to the thousandth place with such a purity.

"Uncle Zhao, there can be no such ideas. Even if there is no way to come up in a short period of time, we must also study this. Materials are all the key issues that restrict our development. If we can't use them, Or the use effect is not very good at all, these research results are basically useless, but a lot of money wasted. Now you know the situation of our base, there is no money, can not afford to waste..." Liu Yijiu gritted his teeth Said.

He knew that being able to achieve such purity was already the limit.

This is the best degree he can provide.

But this kind of purity is no good. Many of the rare elements in these materials are only added to the rare elements of thousands or even ten thousandths to change the overall performance.