(I'm really sorry to everyone. I didn't say it was a thief, but readers of the VIP group were angry by their grandson last night. They said that this was infringing on their rights and the gourd was also confused! Please download it again forty minutes after the update. I didn't want to be troublesome like this.)

"Argon is an inert gas, and everyone knows the protection effect of both sides of the welds of metal parts during the welding process. However, using general welding processes is not possible on aircraft engines with harsh working environments. Aero engines are equipment in the world with the highest accuracy requirements, the harshest working environment, and the service life is long enough, no one!" Under the doubts of Qi Hai and others, Liu Yijiu specially convened all technicians to hold a technical discussion meeting.

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

Simonlov's words are not credible to everyone.

Although the industrial foundation of the Republic was from the Soviet Union, Sino-Soviet relations completely withdrew experts from the early 1960s, burned technical data, and border frictions, which have always been very bad. Under the education of that era, everyone hated all imperialism and revisionism.

Simonlov happened to be from the Soviet Union.

Director Liu obviously has a deep understanding of the engine design, but he does not understand the engine manufacturing process very well.

Here, the Wuyuan hole responsible for engine manufacturing is directly required to be remanufactured according to its process requirements. At the same time, the key welding points of all key components must be welded in the pressurized chamber. Then calibrate the equipment outside, which will naturally be resisted.

"Director Liu, this is wrong. Aerospace engines are still much worse than aerospace engines. Although we are engaged in aviation..." Wuyuan Kongke does not believe that aerospace engines have higher technical requirements than aerospace rocket engines.

"Haha, I think I have a better say in this. I didn't invite experts in aerospace engines to come today, otherwise they would definitely agree with me. The reason why aerospace engines are complex, have higher requirements and have a worse working environment is because aerospace engines need to be reused, while aerospace engines are basically just a one-time deal! If an intercontinental missile engine needs to run for dozens or hundreds of hours, I will definitely be wrong, unless the rocket we are studying needs to hit the moon directly..."

Liu Yijiu's words caused a lot of people to laugh.

But this is absolutely a little wrong, because that's the truth.

Generally speaking, the aerospace engine used on the intercontinental missile can be used for more than two hours, which is already quite amazing. In an hour and 3,600 seconds, the speed of the intercontinental missile will exceed Mach 7 in the climbing stage when it enters the atmosphere, which is about two and a half kilometers per second. Even if it has a range of eight thousand meters, it will fly to within an hour. The engine's use time is so short.

In this case, as long as these engines have been withstood for this period of time, there will be no problem.

As for aircraft engines, take the Al-31, which is most familiar to Chinese people, the minimum service life needs to reach 1,000 hours. Even the vector nozzle behind it still needs to reach 500 hours. When the 1,000-hour engine overhaul time is reached, the vector nozzle needs to be replaced once.

"This is true. However, the output power requirements of aerospace engines are higher, and this is obviously different for the technical requirements of the engine." Someone from Factory 132 raised objections.

"I'm talking to you, are you from the aerospace system or the aviation system? Why do you always think that others have higher technical requirements? Since this is the case, others have higher technical requirements and can do it, why can't you do it?" Liu Yijiu became a little angry.

I don't know what these guys think.

"Under the current situation, since we cannot find the key to the problem and improve the quality, there is no need for us to waste time on this matter. For us, what is time?" Liu Yijiu's mood was obviously because these technicians always think that others' things are more difficult, but the simple things are not done well.

They are not expressing their admiration for the technicians in aerospace engines, but are boycotting Liu Yijiu.

Even though the 611 Institute is under the jurisdiction of the Ninth Court, they also joined the Ninth Court later. They usually have less time to contact with Liu Yijiu, as if Liu Yijiu can get anything involved.

This is how technicians are and they won’t be convinced just because the other party’s level is high.

Liu Yijiu is too young and is incomprehensible to them for the key manufacturing process of the engine.

Unless Liu Yijiu can conquer the designers of the 611 Institute in aircraft design, and use facts to prove that his method is not wrong with the final result, there will be no problems.

"There have been arguing all day long. From the discovery of the problem to the present, for several months, you have not come up with effective solutions. Now you have proposed solutions. Regardless of whether this is useful or not, it is also an experiment. If it is successful, it will solve the problem. Even if it is not successful, it cannot solve the difficulties we encounter. Then it is also an experience. If it is done, you cannot always do the things in front of you according to your own ideas and past experience! If so, how can our technology develop?" Liu Yijiu obviously became more and more angry.

When the people below were angry when they saw Liu Yijiu, they could only avoid his edge. Otherwise, the other party would directly let the project be dismissed, and they would return to the situation when WT Six was dismissed, especially those from Factory 132, who did not dare to offend Liu Yijiu at all.

Factory 132 now has many R&D tasks from the Ninth Hospital, not from the Ministry of Aviation Industry.

Their civilian products business is not too hot now. In terms of fighter jets, the Ninth Academy has two fighter jets being designed, and has not continued to carry out new projects like the original history, and has begun to demonstrate the J-10 fighter jet project.

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

"Director Liu, starting today, we will assemble according to the process you provide..." Qi Hai and Kong from Wuyuan were also worried that Liu Yijiu would have an impact on the future development of the project because of his youth and vitality. After looking at each other, he said to Liu Yijiu.

They are not convinced.

If a new engine is not assembled and good results are obtained on the test flight aerial platform, you will definitely not listen to Liu Yijiu.

The technical standards were 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 in reference to Liu Yijiu's opinions.

Liu Yijiu personally participated in the engine assembly process of the new process, but he did not have the ability to do it. He obviously could not compare with those senior fitters who were at least level seven, but instead provided technical guidance.

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

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

Many of the previous piston-type old engine production technologies cannot be used in the current production processes.

In the initial assembly process, it was not too complicated. Although the accuracy requirements were high, it was not a problem at all under the assembly of many eighth or even nineth level fitters.

However, when welding in the pressurized chamber, we encountered a new problem - a welding technician in his fifties fainted in just one hour while working in the pressurized chamber!

This made Qi Hai, who was standing by the side, panicked.

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

If someone dies, this will be difficult to deal with.

When Liu Yijiu rushed over, the fainting technical worker had just woken up, which made Liu Yijiu feel relieved.

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

"Then let's change to the younger one! The atmospheric pressure inside the pressurized factory is twice as high as outside. You have to wear protective clothing. You can't keep up with your physical strength and your body cannot adapt. Haven't you conducted training before entering the pressurized chamber?"

"I asked them to put on protective clothing to do their homework..."

"for how long?"

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

Liu Yijiu immediately wanted to kick the managers of Factory 132.

Can it work in one hour?

"If you change your age between thirty and forty, you will have to work in the pressurized chamber at least two to three hours. Can you do this?" But now it is not a question of who is responsible.

The managers of Factory 132 were a little embarrassed, "Director Liu, those technical workers in their thirty to forty do not have such good technology. It is not what you said, in the trial production process, all assembly requires the use of top professional technical workers, not to mention that these welding requirements are very high, and they do not have enough experience, and they cannot meet the requirements..."

"Why are you so rigid? A welder in his forties has worked for twenty years or even longer, and he still has no experience?" Liu Yijiu was speechless. "Concentrate all the middle-aged welders with good skills and put on protective clothing and work outside. In half a month, you can know which work can be competent for the pressurized chamber. Once you pass the selection, the salary bonus will increase by three levels, and you will work for four hours a day! This is one of the key processes for the assembly of the entire engine, and no mistakes are allowed! Moreover, experienced technical workers are our wealth and cannot be used to do these things!" Liu Yijiu really wanted to scold this bastard, but he was not the manager of his Ninth Hospital.

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

Besides, I have to make Liu Yijiu angry.
Chapter completed!