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

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

The people inside have never seen them, and Liu Yijiu didn’t know their specific situation, and he didn’t know what projects they were studying. However, it seems that it is really related to nuclear technology. Such things are top secrets, so it’s best not to get involved.

"Okay, I'll go to the Ninth District to see the situation first. I don't know if the tail stable armor-piercing shell bomb they made was made..." Liu Yijiu didn't plan to continue talking about this matter. Wang Shunyi didn't know much about this, and Zheng Hao didn't understand it at all.

I guess he hasn't been to the Ninth District.

"It's useless to study it. Why are there no tanks here? In addition, this kind of armor-piercing bomb is not as easy as imagined. You should go to the materials to see. Didn't you ask them to make some new materials in the second area? Without materials, everything is useless!" Wang Shunyi said to Yun Fei.

Jia Yiming is in Zone 2. Although he is still under surveillance, he has obviously become the chief engineer of the high-temperature alloy project there.

As for the person in charge of District 2, Liu Yijiu knew that Zhao Maoping, who was in charge of materials in District 3, returned to normal after the base returned to normal, some of the management and technical personnel who were originally delegated returned to their posts.

Otherwise, Zhao Maoping would not have been bored at the beginning and went to see what Liu Yijiu wanted to do.

Aviation aluminum material. This is the shortcoming of the Republic. This material is in large demand for both aerospace and aerospace.

"We must go over the materials and take a look. I don't know if Teacher Jia has made our new type of cannon steel. That's something I brought out from Americans..." Liu Yijiu's lies are just open.

"I think you should go back and rest. You are already a family member now..." Zheng Hao said with a sinister look on his face.

These two guys just used professional skills to destroy him, and he felt that he should take revenge.

Lao Wang, he has no choice but Liu Yijiu is different.

"I have a bad family. I have never heard of breaking up couples, but I have never heard of such things..." Liu Yijiu rolled his eyes immediately. He said nothing at all, and then left quickly.

After they returned to the base, they didn't know what was going on, so they directly assigned a room for him in the base, and then got a big red quilt and new bed sheets. Li Rui didn't refuse at all. He moved there directly.

Under the instructions of Zheng Hao and Xie Heping, a group of aunts moved Liu Yijiu's belongings to the new house. They originally said that they would add food in the canteen during the New Year and drink the wedding banquet together, so that they would get married.

Comrade Liu Yijiu was so tender that he had a strong inside and a tender outside. Since then, he has been hiding here and never left.

In revolutionary marriages, there are many marriages on the front line, but this should not have anything to do with him, Liu Yijiu.

Anyone would be disgusted with such a thing. What's more, he knew clearly that Li Rui was arranged by the spies here to monitor him, which was even more unacceptable.

No one can stand such a thing.

"Xiao Liu, in the past, there were many things that made up a couple. Before getting married, most people couldn't even see what their partner looked like. You are much better than them. We have known each other for a long time before..." Zheng Hao howled at Liu Yijiu's back with a bad look on his face.

Liu Yijiu ignored him, speeded up his pace, and soon disappeared into the passage.

"If you want to blame, you can only blame Lao Li for being too urgent and not letting his daughter go to the battlefield. There is nothing wrong..." Wang Shunyi sighed.

How could he not know Liu Yijiu’s thoughts?

No one wants to sleep beside him as a female spy who specializes in surveillance.

"Aren't you worried that your son-in-law will be snatched away by the Situ family..." Zheng Hao still had a smile on his face.

Ignoring the words of the two people behind him. Liu Yijiu took several deep breaths before calming down his anger. He had no choice but to resist this matter with silence.

District 2 is also in a valley. The site selection of the Ninth Courtyard Base must have been a waste of effort at the beginning. There was a low-high mountain in the middle, surrounded by nine valleys, and ten ridges stretched out from the low-high mountain in the middle, and it was quite regular.

If you look from the sky, you have to sigh at the wonders of nature, as if it was specially prepared for existence like the Ninth Courtyard, and the nine valleys around it were exactly nine divisions, and the headquarters of the Ninth Courtyard in the middle...

Zone 2 is the area with the largest number of factories and the lowest number of people in the entire base. There are basically not many operators here, most of them are technical personnel. There are too many types of materials, and even here, the technical equipment for backup is not the most complete.

There are just some very important and critical technologies here.

These equipment were imported from abroad. Many of them were not produced in China, including high-frequency furnaces from Russia, vacuum furnaces from East Germany, high-temperature furnaces from Switzerland, and smelting furnaces from Ukraine... These equipments do not cover a large area, after all, they are small furnaces for experiments, and at the same time, they are also equipment used for small-scale production of materials at the base.

In the 1950s, like high-frequency furnaces and vacuum furnaces, these were top-notch equipment, and I don’t know how the country got it. But now, these furnaces are not good. Many alloys need to increase the temperature to above 2000°C. For example, some alloy materials in powder metallurgy, such as various tool materials, have no way to melt metals, and can only use powder metallurgy to sinter these materials together at high temperature and high pressure...

Tungsten, which is used most for increasing material strength, is used in weapons and equipment, with a melting point of up to 3410°c. It is also used a lot, and is used to increase material toughness, with a melting point of 2610°c. There are also some other metal elements that play a very important role in the strength and performance of weapons and equipment, and the melting point is also very high. If you want to use the smelting manufacturing process, there is no possibility of achieving it at all.

Liu Yijiu was helpless about these things.

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

After entering the second area, I greeted many technicians wearing white coats and basking in the sun outside while walking inside. There are many workshops on the materials side, and these workshops are not big, but basically each workshop has a kind of manufacturing technology and related equipment for key materials.

Jia Yiming has been studying high-temperature alloys since the beginning. After entering this, he is still a high-temperature alloy. Due to the high-strength requirements and poor working conditions, this high-temperature alloy is composed of some high-temperature-resistant metal alloy elements, which is a key material used to manufacture aerospace engines.

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

"Uncle Zhao, what are you in a hurry to do? I'll come here to see the situation. Now many projects are waiting for the research progress here..." Liu Yijiu said hello and said helplessly.

Materials are the key.

"Then you came in the right way. After various analysis and experiments, it was proved that the material strength was indeed very high. But now I encountered a problem. The various ingredients inside were very uneven, and there were also many impurities inside, which affected the performance of the material..." Zhao Maoping took Liu Yijiu to the workshop while introducing the situation.

Liu Yijiu frowned immediately.

He has provided a lot of material formulas here.

I don't know which formula is the problem.

"What kind of material is it?"

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

"Has tungsten alloy steel detected and analyzed the purity of tungsten powder? Is the insulation time according to the data I provided? In addition, is the formula of cannon steel remelted in the electric slag furnace?" Liu Yijiu vomited a series of questions.

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

"This purity is not enough at all. The purity of tungsten powder must reach 99.998%. Molybdenum also needs such purity, and the physical state of the powder must be passed through with a sieve of two hundred purpose. The fine powder can be mixed evenly and added vanadium and other elements..." Liu Yijiu found the key point at once.

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

"Such high purity? There is no way to experiment in a short period of time..." Zhao Maoping is also an expert in this field. When it comes to the place of the milliliter, it is too difficult to have such purity.

"Uncle Zhao, you can't have any idea of ​​this. Even if you can't figure it out in a short period of time, we must study it in this regard. Materials are all the key issues that restrict our development. If it cannot be used, or the effect is not very good, these research results will basically be useless, and instead waste a lot of funds. You know the situation in our base now. If you don't have money, you can't afford to waste..." Liu Yijiu said gritting his teeth.

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

This is the best the craft he provides can achieve.

However, such purity is not possible. Many rare elements in these materials can only add a thousandth or even ten thousandth of rare elements to change the overall performance. (To be continued)

ps: I have improved a lot today, so I will try my best to write as much as possible, but I still can't guarantee how many I can have today!
Chapter completed!