Super military empire

(I'm really sorry everyone, it's not anti-theft at first, but the readers of the VIP group were offended by the grandson last night. They said it was an infringement of their rights. Hulu is also entangled! Please take forty minutes after the update Just re-download, I didn’t want to be so troublesome.)

"Argon is an inert gas. Everyone knows the protective effect on both sides of the welding seam of metal parts during the welding process. However, the general welding process does not work on aero engines with harsh working conditions. Aero engines, It is the equipment with the highest accuracy requirements, the worst working environment, and long service life in the world!" Under the doubts of Qi Hai and others, Liu Yijiu specially called all the technicians to conduct a technical Discussion meeting.

Whether the quality problems of their engines are caused by welding problems has always been debated.

Simon Love's words are not credible to everyone.

Although the industrial base of the Republic is from the Soviet Union, Sino-Soviet relations have completely withdrawn aid to China from the Soviet Union in the early 1960s. After the incineration of technical materials, coupled with border frictions, it has always been very bad. Under education, everyone is hostile to all imperialism and revisionism.

Simon Love happened to be from the Soviet Union.

And Director Liu, obviously has a deep knowledge of engine design, but he doesn't quite understand the engine manufacturing process.

Here, the Wuyuan hole responsible for the manufacture of the engine is directly required to be remanufactured according to his process requirements. At the same time, the key welding points of all key components must be welded in the pressurized chamber, and then the calibration equipment outside will be resisted. .

"Director Liu, this is not correct. Compared with aerospace engines, aero engines are still a lot worse. Although we are engaged in aviation..." Wuyuan Kong does not believe that aerospace engines have higher technical requirements than aerospace rocket engines.

"Hehe, I think I have a better say on this. I did not invite experts in aerospace engines to come over today, otherwise they would definitely agree with me. The reason why aeroengines are complex, more demanding and the working environment is even worse, then It’s because aero engines need to be reused, and space engines are basically just a one-shot deal! If an intercontinental missile engine needs to run for dozens or hundreds of hours, I must be wrong, unless the rocket we are studying needs Hit the moon directly..."

Liu Yijiu's words aroused many people's deep laughter.

But there is absolutely nothing wrong with this statement, because this is the fact.

The space engine used on the intercontinental missile, under normal circumstances, can be used for more than two hours, which is already relatively sky-defying.In an hour of 3,600 seconds, the speed of an intercontinental missile will exceed Mach 7, which is about 2.5 kilometers per second, except for the climb stage when it enters the atmosphere. Even with a range of 8,000 meters, it will fly in just one hour.The engine use time is just that short.

In such a situation, as long as these engines last for this period of time, there is no problem.

Unlike aero engines, the minimum service life of the al-31, which is most familiar to Chinese people, needs to reach 1,000 hours. Even the vector nozzle at the back needs to reach 500 hours of service life. When the 1,000-hour engine overhaul time is reached , The vector nozzle needs to be replaced once.

"This is true. However, the aerospace engine has a higher output power requirement. This is obviously different for the technical requirements of the engine." Someone from the 132 factory raised an objection.

"I say you guys, are you aerospace system or aviation system? Why do you always think that people have higher technical requirements? In this case, people have higher technical requirements and they can do it. Why can't you do it?" Liu Yi Nine is a little hot.

I don't know what these guys think.

"Under the current situation, since we can't find the key to the problem and improve the quality, we don't need to waste time on this matter. For us, what is time?" Liu Yijiu's mood is obviously because These technicians always think that other people's is more difficult, but the simple ones can't be done well and become bad.

They are not expressing their admiration for the aerospace engine technicians, but resisting Liu Yijiu.

Even though the 611 schools are under the jurisdiction of the Ninth Court, they also joined the Ninth Court later, and they usually have little contact with Liu Yijiu, as if Liu Yijiu can intervene in everything.

Technicians are like this, they won't be convinced just because of their high level.

Liu Yijiu is too young, and he is incomprehensible to the key manufacturing process of the engine.

Unless Liu Yijiu is able to use facts to speak of the facts like the designers who conquered the 611 Institute in aircraft design, and the final result proves that there is nothing wrong with his approach, then there will be no problems.

"You have been arguing all day. From the discovery of the problem to the present, several months have passed. You have not come up with an effective solution. Now you have proposed a solution. No matter whether this is useful or not, it is also an experiment. If it succeeds, it will be resolved. To solve the problem, even if we are not successful, we cannot solve the difficulties we have encountered. Then, it is still an experience to do technology. You cannot always do the things in front of you according to your own ideas and past experience! If so, our technology is still How to develop?" Liu Yijiu is obviously getting more and more angry.

When the people below saw Liu Yijiu getting angry, they could only avoid his edge. Otherwise, the other party would dismount the project directly, and they would return to the situation when the turbofan was dismounted at six, especially the people from the 132 factory. Dare to offend Liu Yijiu.

Many of the R&D tasks of the 132 factory now belong to the Ninth Academy, not the Ministry of Aviation Industry.

Their civilian products business is not too hot right now, and in terms of fighters, it is because the Ninth Academy has two fighters under design, and they have not continued to engage in new projects like the original history, and began to demonstrate the J-10 fighter project.

The only business is to improve the design of a large number of domestic J-7 equipment.

"Director Liu, we will assemble according to the craftsmanship you provided from today..." Qi Hai and Wu Yuankong were also worried that Liu Yijiu's youth and vigor would have an impact on the future development of the project. After a glance, they faced each other. Liu Yijiu said.

They are not convinced.

Without assembling a new engine and getting good results on the test flight aerial platform, Liu Yijiu would never listen to everything.

The technical standard was proposed by Liu Yijiu, and the performance parameters of the turbofan-8 engine were also proposed by Liu Yijiu, but the design was indeed modified by Qi Hai and others with reference to Liu Yijiu's opinions.

Liu Yijiu personally participated in the engine assembly process of the new technology. He didn't have hands-on skills. Obviously, he couldn't compare with those senior fitters with the lowest level of seven. Instead, he gave technical guidance.

The new process is very different from the previous one. After all, the process of producing jet engines in China has just begun.

Compared with the United States and the Soviet Union, the difference is not a little bit.

Many of the old piston engine production technologies in the past cannot be applied to the current production technology.

In the initial assembly process, it was not too complicated. Although the accuracy requirements are high, it is not a problem at all under the assembly of many eight or even nine level fitters.

However, when welding in the pressurized cabin, he encountered a new problem-a welding technician in his fifties fainted in just an hour while working in the pressurized cabin!

This caused Qi Hai who was on the side to panic.

Liu Yijiu was originally discussing the blade design and production improvement plan with Wu Yuankong, but he rushed over after hearing the news.

If someone died, this matter would be difficult to handle.

When Liu Yijiu rushed over, the fainted technical worker just woke up, letting Liu Yijiu breathe a sigh of relief.

After inquiring, I realized that this was poisoned by rigid empiricism.

"Then change to a younger one! The atmospheric pressure inside the pressurized plant is twice that of the outside, and you have to wear protective clothing. You can't keep up with your physical strength and your body can't adapt. Before entering the pressurized chamber, didn't it? Have you been trained?"

"They were asked to put on protective clothing for work..."

"how long?"

"Two hours a day, one hour at a time..."

Liu Yijiu immediately wanted to give the 132 factory management a kick.

Can it work in an hour?

"For those between 30 and 40, at least two to three hours are required to work in a pressurized cabin each time. Can you do this?" But now it is not a question of who is held responsible.

The management staff of the 132 factory was a bit embarrassed. "Dr. Liu, those skilled workers in their 30s to 40s don’t have such good skills. Not what you said, in the trial production process, all the assembly needs to use the most top professional technology. Workers, not to mention, these welding are very demanding, and there is not enough experience to meet the requirements..."

"Why are you so rigid? Forty or so welders, who have worked for 20 years or more, will have no experience?" Liu Yijiu was almost speechless."Gather all the skilled middle-aged welders, put on protective clothing and work outside. Within half a month, you will be able to know which ones are competent for the job of the pressurized cabin. Once selected, the salary and bonus will increase by three levels and they will go to work every day. Four hours! This is one of the key processes in the assembly of the engine, and no errors are tolerated! Moreover, experienced technical workers are our wealth and cannot be used to do these things!" Liu Yijiu I want to reprimand this bastard, but he is not the manager of his Ninth Hospital.

What else the manager had to say was stopped by Zhao Liangbi who had just arrived.

Besides, Liu Yijiu had to get angry.