As for the new artillery steel, Liu Yijiu began to think about which kind of artillery steel should be taken out from the moment he had the idea of building a tank.

At present, all countries in the world are studying new cannon steel, although the hardness of the old tungsten alloy steel is large, although the high temperature resistance is also very good, but because the hardness is too high, the toughness of the gun barrel is relatively low, so after many shots, the gun barrel will gradually reach the maximum metal fatigue strength because of the instantaneous high temperature and high pressure generated when the gun is ejected.

In this way, when the service life of the barrel is reached, the barrel must be replaced, otherwise it is easy to have an accident.

The Republic has always attached great importance to the development of artillery, and there is no way to change this in a short period of time. In the absence of a strong air force and navy, the king of land, such as tanks, must also be created.

A tank is actually a mobile artillery, but tank guns have higher requirements for materials! The harsh combat environment, the chamber pressure and temperature are much higher than those of ordinary guns, which dooms the tank to have very high requirements for the reliability indicators of the barrel and turret parts, which makes the requirements for the materials used to produce these parts also higher. The tank gun of the third generation of tanks is generally chromium, nickel, molybdenum, tungsten alloy steel, after entering the 21st century, the domestic tank gun steel is generally made of 25cr3mo3ninb this material.

Liu Yijiu was also ready to use this material at the beginning, because it has better properties than PCRNI3MOV steel and 32CRNI3MOV steel. But what he learned in Factory 2983 in the past few days made him a little depressed.

There is simply no ability to develop such a new material!

This was something he overlooked at first.

"You mean that if you want to develop new artillery steel materials, you must return to our base or other material research units?" Zheng Hao's opinion on Liu Yijiu. I was a little speechless.

He has been busy strengthening the quality awareness of factory cadres and workers in the past few days, and Liu Yijiu discussed the research plan of new materials with Tian Deming and others. He would at least have to get the whole factory up and running again before he could leave.

"Yes. There is only production capacity here, and there is no scientific research capacity at all. We only have R&D capabilities over there. There is not much production capacity. Therefore, if you want to make a new type of cannon steel, you must go back to our base......" Liu Yijiu nodded very seriously.

Just have the capacity here.

When the time comes, after the research of the Ninth Academy, the material formula and production process will be directly handed over to the 2983 factory for production.

There is no need to waste a lot of manpower, material resources and money. Otherwise, it will eventually cause serious waste due to duplicate construction, which will be a disaster for the republican labor system that is about to carry out large-scale disarmament and reduce military spending.

"Are you really sure about this?" Zheng Hao asked Liu Yijiu uncertainly.

Could it be that this kid bragged at the beginning, and he wanted to go back to the base to hide because he was worried about being poked?

"No problem. But you have to go up there and ask for something......" Liu Yijiu nodded and said to Zheng Hao with a little smile. Anyway, I want something or something. It's all Zheng Hao's business.

Hearing this, Zheng Hao suddenly had a bitter face, "Don't let me ask for things, the last important person, the leaders of the entire capital know, Minister Liu has long said that he will clean me up, I don't dare to see him now, otherwise, this time I won't delay until he leaves......"

This thing. Can't do it anymore.

Once is no problem, but twice, three times, you have to be cut to death by Minister Liu. Still counting on promotions, climbing to higher positions and contributing to the defense industry? That's dreaming.

"Don't worry, I won't let you go with the rolls again this time. Didn't Master Jia in the second district of our superalloy have come up with a new model? Tested for performance. It's a lot better than what you're currently using, right? You take this to him for credit, and then take the opportunity to complain. We can't continue our research...... When the time comes, he will ask why, and you tell him directly. We lack rare earth elements in our hands, and we must allocate two units to us, at least let two units provide us with a steady stream of rare earth elements......" Liu Yijiu gave Zheng Hao an idea.

"Rare earth elements? What is this? Does it have a very big effect on us? "Zheng Hao doesn't understand technology at all, and he knows a steel and aluminum material, and he doesn't know anything about various models, let alone rare earths.

"I can't explain this thing to you, you just have to ask for it. I promise he will agree, because we can't do this stuff in China......" Liu Yijiu said very easily.

"You didn't lie to me?" Zheng Hao has already fallen for Liu Yijiu.

"What are you lying to! If you don't believe me, won't you just ask a few random people? The heavy rare earths in Jiangxi Province and the light rare earths in Inner Mongolia are all needed, and it is best to let him allocate two production units to us in these two places......" Liu Yijiu took this opportunity to save the rare earth resources of the Republic.

The rare earth resources of the Republic are the largest and most abundant in the world. Then, it is very difficult to study this thing, and the Republic itself has not made much progress in this research, and the most studied things are the United States imperialism, Germany, Japan, and other countries that have always had developed industries.

After the reform and opening up of the republic, in order to get more foreign exchange, and foreign countries also need a lot of these resources that they lack, especially the little devils, they don't produce this thing at all, so they desperately import from the republic and hoard it.

There is a lack of understanding of rare earth resources in the Republic, and most of them are privately mined and mined indiscriminately, and then they begin to bargain with each other to sell to the Japanese for more orders.

The advanced electronics industry of the Japanese is even built on the cheap supply of rare earth resources in the republic. By the time the Republic found out that this thing was too useful, the domestic rare earth resources had been almost sold.

In particular, the light rare earth elements in Inner Mongolia began to be taken seriously when they had a very special use in aerospace, especially in the satellite guidance of missiles, and at that time, the little devils and the shrewd Americans did not know how much they were hoarding.

In particular, there are some elements of this that are produced only in the Republic.

Liu Yijiu is here, so they don't want to take advantage of this.

That's why he wanted to get the materials that he had only come up with in the 21st century in this era!

Only when China recognizes the importance of rare earth elements will it not export these strategic resources on a large scale for the sake of that pitiful foreign exchange.

Liu Yijiu has another decade to use before entering the mining industry privately.

That's enough.

Feeling that this thing doesn't seem to be very important, Zheng Hao also feels that Liu Yijiu doesn't seem to be lying to him, anyway, he thinks that the larger the scope of the management of the Ninth Academy, the better, and he will be able to climb to a higher position in the future.

"Are you sure it's easy?" Zheng Hao felt that this matter was not so easy.

Otherwise, Liu Yijiu would not let him come forward.

"I said, leader, can you give your subordinates a minimum of trust? This thing is really very simple, you can even call Minister Liu directly. Can we still communicate happily? Liu Yijiu was speechless.

Very speechless.

Isn't it just a raw material production unit that the two countries simply don't pay attention to!

Moreover, in this era, the state did not pay much attention to the production of rare earths, and this thing was of no use to the Republic at all.

"Last time, you also told me that there would be no problem......" Zheng Hao reminded Liu Yijiu.

"I also told the consequences last time......" Liu Yijiu didn't want to continue talking to Zheng Hao.

Zheng Hao finally agreed, anyway, when calling, just throw the phone aside when the leader scolds him, and pick it up when the leader finishes scolding.

Liu Yijiu didn't pay any attention to Zheng Hao, and went back to the technical room in Factory 2983 to continue to draw the 87-type 82-mm mortar.

Knowing his problem, Zheng Hao asked Tian Deming to arrange two draftsmen for Liu Yijiu. Specially helped Liu Yijiu to standardize the drawings, as for various technical requirements and performance requirements, Liu Yijiu was too lazy to write, he said while letting the two draftsmen record it.

Luo Tong, this unlucky child, Zheng Hao was sent to the base as soon as he arrived here, and the base is now in a tight production task, and he needs to go to the workshop to supervise the quality problems.

The quality accident of the 2983 factory has sounded the alarm for the production units of the military industrial system throughout the country, especially the department in charge of the ordnance industry of the Fifth Machinery Department, which has strictly demanded that the subordinate units comprehensively investigate the quality problems and prevent the recurrence of the kind of things that require output but not quality.

After the Type 87 mortar was finished, Liu Yijiu was thrown to Tian Deming, whether Tian Deming would let the production department get the test samples out, with Zheng Hao here, there was no need for Liu Yijiu to worry.

Anyway, the material requirements for the Type 87 mortar are not as high as those for heavy guns and tanks, and the original materials will not have a problem as long as they are carefully implemented in accordance with the technological process. The cannons that were used to support the monkeys didn't have any of these problems.

According to Liu Yijiu's suggestion, Zheng Hao told those who are responsible for quality inspection and technology that in the future, some cannons will be randomly pulled out of each batch of products, so that they can play with guns if they have nothing to do!

If these people could still not take quality as they did before, they would have no choice but to send them to the front as artillerymen.

Tian Deming was a little disappointed with Liu Yijiu's departure, if this young man stayed in this factory, the production and technology research and development of Factory 2983 would be faster.

This is the first time he has met such a young man, and he is very familiar with materials, technology, design, production technology, heat treatment and so on. Most of the workers, peasants, and soldiers in their factory who were later assigned were scum and could not be used...... (To be continued......)

ps: After this chapter was written, it was already four o'clock, but for the sake of the brothers who had read it in the morning, the gourd hand cramped, and I still persisted.

The testimonials in each chapter are all asking for a monthly pass, hoping that the brothers will reward a monthly pass for the gourd for the sake of such a hard work.