Super military empire

(Greatly added 27/100 for @liwers)

Liu Yijiu didn't bother to bother about how Zheng Hao fooled Jiang Wen in the car.

Chu Guorong and Cheng Xiaoci are both bad-spoken technicians. After being in a car with Liu Yijiu, they are still a little uncomfortable. They are just pure technicians. After the project was dismantled, they even went to the central supervisor in person. The departments, edges and corners have long been smoothed out.

"Mr. Chu, Mr. Cheng, who of you can help introduce the situation of the big press? Although I know some of the information from the beginning, and then heard the report when the project progresses, but the specific situation, I think it is yours The most clear..." Liu Yijiu also felt depressed and spoke actively.

As soon as the two heard this, they immediately became alive, and the atmosphere in the car began to liven up.

"Director Liu, our big press is still the same plan that we started to design in the 1960s, but after a lot of modifications, and after many demonstrations, it finally started production..." Cheng Xiaoci was less than 40 years old , Being able to sit in the position of vice president of the project, has been able to see his incredible.

To introduce Liu Yijiu about the big press, he did not directly introduce the performance parameters, but started from the whole project.

For this kind of introduction, Liu Yijiu naturally listened very patiently.

"The entire large press is about 38 meters high, 15 meters underground, and 23 meters above the ground, which is equivalent to a 12-story building... the total weight is about 21,000 tons. There are 68 parts weighing more than 75 tons. The largest single piece weight is the highest in the world. Forging can be carried out steplessly at any tonnage within 700 mn pressure, and the maximum die forging pressing force can reach 800 mn. According to the requirements of the Ninth Institute, after modifying the plan, the synchronization accuracy is high and the resistance Strong eccentric load capacity, which can realize stepless voltage regulation and speed regulation..."

"Not 65,000 tons? How come it became 70,000 tons? The maximum forging pressure can reach 80,000 tons?" Liu Yijiu was a little surprised.

On a large press of this level, 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 40,000-ton press.

The 65,000 tons were directly launched. The technical difficulty can be imagined, but now 70,000 tons are actually produced.

Such pressure makes it a little worse to create an aerial giant like An-225.

"The project plan is indeed 65,000 tons. However, due to the sufficient funds of the Ninth Institute and the cooperation discussions and research with many domestic universities and heavy industry enterprises, we found that the manufacturing cost of the 65,000 tons of large press is only 70,000 tons. It was only 30 million short, so I finally chose the 70,000 tons plan..." Saying this, Cheng Xiaoci stopped and looked at Liu Yijiu nervously.

For the other party to spend 30 million more, and it is only a soft sister currency instead of a US knife, Liu Yijiu can not be regarded as a thing at all.

Other units were short of money, and Yun Ten was dismantled because of a funding of 30 million. Now that the Ninth Institute holds tens of billions of dollars in funding, it will naturally not treat this as a single thing.

"Now that we have a 70,000-ton large press, our forging capacity can now rank second in the world. Even with our new large transport aircraft project, there is no problem!" Liu Yijiu nodded approvingly.

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

"Yeah, that's what we thought when we were discussing it. After all, the greater the force that can be provided during forging, the better the strength of some heavy-duty parts with higher requirements..." Seeing Liu Yijiu, there was nothing to say. Dissatisfied, both of them were relieved.

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

It is equivalent to entrusting them to design and manufacture.

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

Now there is only one such forging equipment that can be used in the country.

In order to improve the internal structural strength of heavy parts and make the grain structure more dense, so as to have better material strength and mechanical properties, higher metal fatigue strength, and longer service life, more force must be used Hammer the parts in place with one hammer.

In the absence of such a huge forging press, the production of the main beams of the Yun-10, the main beams of the J-11 and the J-10, and the production of the landing gear were all repeated using the 30,000-ton die forging machine in the Southwest Aluminum Processing Plant. Although forging can achieve the effect several times, the internal structure of the material is not a whole, and micro cracks will occur in many places.

It has a very big impact on the service life.

Yun Ten is the most obvious example.

After only thousands of hours of flying, the metal fatigue strength of the main girder began to decline.

"The main beam for the production of aircraft, theoretically, one can be produced in one and a half hours; the landing gear is about one in seven minutes..." Chu Guorong smiled and said to Liu Yijiu. They are still very satisfied with the production speed. In the production process, we conduct joint research and technical research with Huaqing University, Capital University, First-level Department, First Heavy Industry and many other units. In particular, 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.

Isn't Director Liu dissatisfied with this speed?

You know, when forging, you have to raise the forging hammer to a height of more than ten meters, and the entire moving part weighs thousands of tons!

The weight of the largest beam alone exceeds 500 tons!

Immediately explain again, "This time is mainly due to the installation process that takes a lot of time..."

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

In this age, being able to reach this level is already pretty good!

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

Seeing Liu Yijiu sighed, the two of them didn't know what to do. This large press has already mobilized the country's top technical force, and it is currently the highest level that can be achieved.

The whole car fell into repressed silence again.

Fortunately, it is not too far from the train station to the second heavy factory.

Within two minutes of silence, the team stopped at the gate of Erzhong's factory.

Someone outside opened the car door. Liu Yijiu's foot had just stepped out, and he had not yet set foot on the ground, waiting for the workers on both sides of the factory entrance. Under the command of a thin old man, there were loud gongs and drums. At the same time it rang, and the workers also began to dance the red flowers in their hands, shouting a warm welcome to Liu Yijiu and others...

For this kind of battle, Liu Yijiu did not catch a cold.

With time, it's better to produce more!

"Director Liu doesn't like such a lively scene..." When Zheng Hao saw that Liu Yijiu had not accepted the flowers offered by the female worker, he smiled bitterly and said to Jiang Wen beside him. Jiang Wen hurried to make arrangements, and the noise came to an abrupt end.

The workers were commanded to leave the factory gate in a bit of amazement.

They are a little bit unable to understand. Before they were not lively, and their voices were not loud enough, they would still be criticized by the leaders. Why did they change their tune today?

Especially, the leader they welcome seems too young?

Many of Erzhong's managers are also very embarrassed, especially when faced with questions from their subordinates.

Liu Yijiu didn’t pay attention to the embarrassed expressions of the leaders of the second party and said to Jiang Wen, “Mr. Jiang, we have limited time, so let’s just go and see the big press. If we don’t see this, our project has nothing in mind. bottom……"

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

The embarrassment encountered in 701 has spread throughout China.

Even the People's Daily reported several times that the canteen in 701 was sealed up for reference only...

"Director Liu, the newly built plant next to here is our large press forging workshop!" After entering Erzhong's factory door with a strong Soviet style, it didn't take long to see the road. On the left, there is a new workshop which is much taller than other workshops and has a much wider width.

This plant is like a standout group. The light steel structure plant is indeed very conspicuous in the middle of the Soviet-style brick-wood structure plant, and it maintains a long distance from other plants.

"We completed the civil engineering first and built the factory building while assembling the big press, so we haven't had time to clean up outside..." When Liu Yijiu saw that there was still a lot of dirt outside the factory building that had not been cleaned away, Jiang Wen quickly explained.

The technicians who were waiting to welcome the leader at the entrance of the workshop were all taken back by the people Jiang Wen arranged at the beginning.

"Isn't it debugging? Why is the workshop door closed?" Liu Yijiu looked over and saw that the workshop door was closed.

"Here is the material channel. There is only one such equipment in the entire factory area. Next to it is the heating workshop. The personnel channel is on the other side of the workshop..." Jiang Wen felt that Liu Yijiu was too difficult to serve.

Liu Yijiu looked around, did not say anything, but walked towards the personnel passage next to the workshop under the leadership of Jiang Wen and others.

Just after entering the workshop, there are some rooms built on a large area, which are the workers’ lounge and office.

On the other side is the technical room.

"Have sound insulation measures been taken in these offices and technical rooms? When the tens of thousands of tons of equipment is activated, the movement is not small!" Liu Yijiu reminded Jiang Wen.

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

It's useless to just send soundproof earplugs.

"Several kinds of soundproofing materials are used on the walls and ceilings of these offices. Five and a half-meter wide and three-meter deep trenches were dug beside the office, and they are usually filled with water to reduce vibration..."

Take a few steps forward, and what you see is a shocking giant machine-this is China's 70,000-ton large forging press!

When Liu Yijiu saw this thing, he felt a breath!