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Liu Yijiu was too lazy to pay attention to how Zheng Hao fooled Jiang Wen in the car.⊥

Chu Guorong and Cheng Xiaoci are both technicians who are not good at speaking. After the same car as Liu Yijiu, they are still a little uncomfortable. They are just simple technicians. After the project was dismounted, they even went to the central authorities in person, and their edges had long been smoothed out.

"Mr. Chu, Mr. Cheng, who can you help introduce the situation of the large press? Although I learned a little from the initial information and heard the report when the project progressed later, I think you are the ones who know the specific situation best..." Liu Yijiu also felt depressed and spoke actively.

When the two of them heard this, they immediately became vivid and the atmosphere in the car began to become lively.

"Director Liu, our big press is the same plan that was designed in the 1960s. However, after a lot of modifications and after many arguments, it was finally put into production..." Cheng Xiaoci was less than 40 years old and was able to take the position of deputy director of the project. He could already see his greatness.

When introducing the situation of the large press to Liu Yijiu, he did not directly introduce the performance parameters, but started from the entire project.

Liu Yijiu naturally listened to such an introduction very patiently.

"The entire large press has a total height of about 38 meters, 15 meters underground and 23 meters above the ground, which is equivalent to a 12-story height... The total weight is about 21,000 tons, and 68 parts with a single weight of more than 75 tons. The size and maximum single-piece weight of the press are the best in the world. Forging can be carried out steplessly within a pressure of 700mn. The maximum die forging pressing force can reach 800mn. After the plan is modified according to the requirements put forward by the Ninth Academy. The synchronization accuracy is high, the anti-load capacity is strong, and stepless pressure regulation and speed regulation can be achieved..."

"It's not 65,000 tons? Why is it 70,000 tons? The maximum die forging pressure can reach 80,000 tons?" Liu Yijiu was a little surprised.

On such a large press, every increase of one ton of pressure is an extremely serious challenge for the technology of the entire equipment.

Before this, China did not even have a large press of 40,000 tons.

It is 65,000 tons to be launched directly, and the technical difficulty can be imagined. Now I still have 70,000 tons.

Such pressure will create a bigger air giant like An-225.

"The project plan is indeed 65,000 tons, but due to the sufficient funds of the Ninth Institute, and our cooperation with many universities and heavy industry enterprises in China, we found that the manufacturing cost of the 65,000 tons of large press is only 30 million away from 70,000 tons, so we finally chose the 70,000 tons plan..." As he said this, Cheng Xiaoci stopped and looked at Liu Yijiu nervously.

Liu Yijiu didn't take the other party as an extra 30 million yuan, and it was just a soft girl coins instead of a US dollar.

Other units are short of money, and Yun Shi was dismissed because of 30 million yuan in funding. Now the Ninth Hospital holds tens of billions of dollars in funding, so naturally it will not take this seriously.

"Since we have a large press of 70,000 tons, our forging capabilities can rank second in the world. Even our new large transport aircraft project, there is no problem!" Liu Yijiu nodded with praise.

If possible, he would love to have a 100,000-ton die forging machine!

"Yes, that's what we thought when we were discussing it. After all, the greater the force it can provide during forging, the better the strength increase of some heavy-duty parts with higher requirements..." Seeing that Liu Yijiu was not at all dissatisfied, both of them breathed a sigh of relief.

After all, this project was taken over by the Ninth Academy.

It is equivalent to entrusting them to design and manufacture.

"How is the production speed?" Liu Yijiu continued to ask.

Now there is only one forging equipment that can be used in China for their current use.

In order to improve the structural strength inside heavy-duty parts, make the grain structure more compact, and thus have better material strength and mechanical properties, higher metal fatigue resistance and longer service life, the parts must be hammered in place with a larger force.

When there was no such a huge forging machine, the main beams of the Y-11 and J-10 were produced and landing gears of the Y-11 and J-10, which were used to repeatedly forge the 30,000-ton die forging machine in the Southwest Aluminum Processing Factory. Although the effect could be achieved after a few more times, the structure of the material is not a whole, and fine cracks will occur in many places.

It has a very big impact on service life.

Yunshen is the most obvious example.

After only a thousand hours of flying, the metal fatigue resistance strength of the main beam began to decrease.

"The main beam of the production aircraft, theoretically, can produce one in one and a half hours; landing gear will be about seven minutes..." Chu Guorong said to Liu Yijiu with a smile. They were still very satisfied with this production speed. "During the production process, we conducted joint research and technical research with many units such as Huaqing University, Capital University, First-level Department, First-level Height, etc., especially the Ninth Institute provides some key control technologies. Many key processes in the entire production process are automated..."

Seeing Liu Yijiu frowned, Chu Guorong couldn't help but stop.

Is Director Liu unhappy with this speed?

You know, when forging, you have to lift the forging hammer to a height of more than ten meters, and the entire moving parts weigh thousands of tons!

The largest beam alone weighs more than 500 tons!

I immediately explained again, "This time mainly takes a lot of time to install the clamping process..."

"This time is very good!" Liu Yijiu sighed.

In this era, it is already quite good to be able to reach this level!

He remembered that the 80,000-ton large press was only 210 seconds to forge the landing gear!

When they saw Liu Yijiu sighing, the two of them didn't know what to do. This large press has mobilized the top technical force in the country, and it is currently the highest level that can be reached.

The whole car fell into a depressing silence again.

Fortunately, it was not too far to come out of the railway station to the second factory.

After two minutes of silence, the convoy stopped at the entrance of the Second Factory.

Someone outside opened the car door. Liu Yijiu had just stepped out and had not stepped onto the ground. He was waiting for the workers on both sides of the factory gate. Under the command of a thin old man, the loud gongs and the loud drums sounded at the same time. The workers also began to dance the red flowers in their hands and shouted a warm welcome to Liu Yijiu and others...

Liu Yijiu was not very interested in such a situation.

With time, it’s better to produce more!

"Director Liu doesn't like such lively scenes..." Zheng Hao saw that Liu Yijiu did not accept the female worker's flower offering, and said to Jiang Wen beside him with a wry smile. Jiang Wen hurried to make arrangements, and the noisy voice stopped abruptly.

The workers were in amazement and were ordered by the management to leave the factory gate.

They were a little confused. They were not lively before and the sound was not loud enough and they were criticized by their leaders. Why did they change the tone today?

Especially, the leaders they welcomed seem to be too young?

The many managers of the Second Level are also very embarrassed, especially when facing their subordinates’ inquiries.

Liu Yijiu did not care about the embarrassing expression of the leaders of Erzhong and his team, and said to Jiang Wen, "Director Jiang, our time is limited, so let's go and see the big press directly. If we don't see this thing, our project will be unsure..."

Regarding Liu Yijiu, Jiang Wen and others, they learned a lot through Zheng Hao.

The embarrassment that Institute 701 once encountered has spread throughout China.

Even the "Mass Daily" has reported it several times. The canteen in 701 was sealed for reference only...

"Director Liu, the newly built factory next to it is our large press forging workshop!" After just entering the factory gate of the Second Cross, which had a strong Soviet style, I didn't walk for a long time to see a new factory on the left side of the road that was much taller than other workshops and had a lot of width added.

This factory is like a flock of cranes. The light steel structure factory is indeed very conspicuous in the middle of the Su-style brick and wood structure factory, and it keeps a long distance from other factories.

"We completed the civil engineering project first, and built the factory while assembling a large press, so there was no time to organize it outside..." Seeing that Liu Yijiu saw that there was still a lot of soil outside the factory that had not been cleaned up, Jiang Wen quickly explained.

The technicians who were waiting to welcome the leader at the entrance of this workshop were brought back by Jiang Wen at the beginning.

"Didn't you say you are debugging? Why is the workshop door closed?" Liu Yijiu looked over and saw that the workshop door was closed.

"This is the material passage, and there is only one such equipment in the entire factory area. Next to it is the heating workshop, and the personnel passage is on the other side of the workshop..." Jiang Wen felt that Liu Yijiu was too difficult to serve.

Liu Yijiu looked around and said nothing. Instead, he walked towards the personnel passage next to the workshop under the leadership of Jiang Wen and others.

Just entered the workshop, there is a large area where some rooms are built, which are workers' lounges and offices.

The other side is the technical room.

"Didn't sound insulation measures be taken in these offices and technical rooms? When these tens of thousands of tons of equipment are activated, the noise is quite loud!" Liu Yijiu reminded Jiang Wen.

After all, these leaders don’t have much time to come here, and workers and technicians have to live in such an environment every day.

Just sending soundproof earplugs is useless.

"The walls and roofs of these offices are made of several sound insulation materials. Five trenches with a width of three meters and a depth of three meters were dug next to the office. Water was usually filled with water to reduce vibration..."

If you take a few more steps forward, what catches your eye is a shocking giant machine - this is China's 70,000-ton large forging press!
Chapter completed!