The successful trial production of the variable cycle engine means that there is only one final hurdle left before the H-20’s first flight:
Assembly test.
In this regard, Chen Nian has never been worried about the level of domestic engineers.
After all, although the word "craftsman spirit" has become a negative word full of ridicule in the era he lived in, now it is a real praise for those hard-working workers.
You know, the workers in this country are able to torment dozens of ruthless people day and night just for a micron difference.
You can call them stubborn, you can call them silly, you can even call them stupid, but you can never question their level.
In an era without precision machinery or high-performance computers, they could even achieve similar results with their own hands and minds.
What they represent is the limit of what human power can achieve.
And it's the same now.
What's more, a large number of advanced technologies and equipment have been introduced into the H-20's manufacturing process. With the support of these things, they will only be able to complete their original work better.
With this thought, Chen Nian bid farewell to Chen Guo with satisfaction, left the office, and walked to the H-20 assembly workshop.
It was exactly three o'clock in the afternoon, and the workshop was busy.
At this time, he no longer had any restrictions in Institute 603. If he wanted to, he could even treat the core confidential workshop as his own home.
Tang Changhong had already prepared an identity for him, which was enough to explain the past both externally and internally.
The same is true today.
After Chen Nian entered the workshop, engineer Liu Xuejian, who was inspecting the installation of the landing gear, noticed him and quickly stood up to say hello.
"Mr. Chen, are you free to come over and take a look today?"
In his eyes, Chen Nian was a talented young man specially trained by a certain brother's research institute. He came here specifically for training and exchanges. He had extremely high confidentiality and had the background of some big shots.
Under this understanding, he has always been polite to Chen Nian.
Of course, this politeness was originally mixed with a touch of superiority.
After all, the era of "general tigers" has passed, and the current second generation generally does not have much real ability.
At first, he thought that Chen Nian was also such a person.
But unexpectedly, after several contacts, he was directly impressed by Chen Nian's professionalism.
In addition, Chen Nian helped them solve several difficult technical problems. Now his attitude towards Chen Nian can be described as sincere and crystal clear admiration.
"Yes, I heard that the variable cycle engine will be shipped over for assembly soon. Let me see how everyone is preparing."
"Hey, you don't have to worry about me, just do your own thing."
"I'm so familiar with you, why should I greet you?"
Hearing Chen Nian's words, Liu Xuejian chuckled and replied:
"You have to greet me whenever you come. This is the rule."
"We asked a master to try the titanium-aluminum combined riveting hole-making method you told us about last time. Hey, guess what, it's awesome!"
"We specially found experienced fitter masters to test it, and no one who has learned from it said it doesn't work."
"You know Master Liu Shiyong, right? He is our most senior fitter. Even he said that someone who can come up with this kind of operation must have been an expert for at least decades."
"I told him that it was the young man who suggested it, but he still didn't believe it. Didn't he hide and watch you last time? You didn't pay attention."
Chen Nian couldn't help but smile and said with a hint of ridicule:
"Next time, ask Master Liu to come to me directly. Maybe we can still communicate."
"Of course, I'm just talking on paper. If I were to put it into practice, I might not even be able to carry a rivet gun."
In fact, although Chen Nian has never actually met Liu Shiyong, he is very familiar with this name.
From beginning to end, this person has called himself "an ordinary aircraft riveting fitter", but in fact, he is an honorary man with countless project experience, and even took the lead in the frame structure modification design of the J-10 modification project. The big cow.
The "titanium-aluminum combined riveting method" that he proposed before was actually expanded on part of his research results.
However, during this period, although Liu Shiyong had outstanding abilities, he did need more time to accumulate, and he did not have many outstanding achievements.
It's no wonder that he doesn't dare to talk to himself directly about technology - he probably still has some inferiority complex of "thinking he's at the bottom".
Thinking about this, Chen Nian added another sentence:
"I'm not joking. You can find an opportunity to talk to Master Liu some other time and let him talk to me when he has time."
"The subsequent assembly work of the H-20 is very complicated, and as the leader, he must be aware of it."
"If you have any difficulties, I will help if I can."
"Your words are enough, Mr. Chen!"
Liu Xuejian's expression perked up, and after a moment of pause, he smiled sheepishly.
"Don't tell me, Mr. Chen, we really have a little trouble here."
"If you have time now, would you like to help us take a look?"
Liu Xuejian's expression revealed a hint of confusion, and his tone also contained some subtle guilt.
What the hell, I came here to learn, but after studying for more than a month, I didn’t bring anything back. Instead, I gained a lot of “technical wool” here.
Is this still communication?
Is it purely technological poverty alleviation?
——
Maybe he was originally here to help the poor with technology, but he just chose such a name to make 603 Institute look good.
Chen Nian nodded slightly and asked:
"What's the trouble? Is it the assembly process?"
Liu Xuejian shook his head and replied:
"It's not the assembly process, it's the materials."
"We have tested the H-20's take-off and landing system before and found that the current landing gear is sufficient if used on other fighter jets and even other civil aviation aircraft."
"But the H-20 is different. Due to the special body design of the H-20, the approach speed is faster when landing, and the landing impact is relatively large."
"If we still follow the previous design ideas, the phenomenon of stress concentration in the landing gear will be more obvious."
"As a result, the life of the landing gear will be significantly shortened."
"Originally, this was not a big deal - at most it was just a matter of regularly replacing the wearing parts of the landing gear."
"However, the H-20's landing gear bay and magazine have mechanical structural interoperability, and it is estimated that later maintenance will be very troublesome."
"So we were wondering if there was any way to solve this problem once and for all."
"We have been studying this matter after get off work these days. Chen Gong, I think you have quite an idea. Why don't we take a look together?"
Chen Nian scratched his head and asked with some confusion:
"Does this thing still need to be discussed?"
"Isn't this problem directly solved with the anti-fatigue technology system?"
"Surface quality improvement technology, surface strength enhancement technology, structural parts edge finishing technology. Huh? You don't know?"
Seeing Liu Xuejian's confused expression, Chen Nian suddenly reacted.
Good guy, hasn’t this system appeared yet?
its not right!
Isn’t the stress concentration-free anti-fatigue technology system a concept proposed by Zhao Zhenshi around 2003?
As of now, we are about to enter 2007 in a few days. Has the improved 300M steel not appeared yet?
He quickly stopped talking and asked:
"Is the landing gear now made of 300M-2 steel?"
"No! It's made of 300M steel."
Liu Xuejian answered with questions on his head.
what happened?
Obviously I am already an expert in this field, but I have never heard of the concepts mentioned by Chen Nian.
Seeing his reaction, Chen Nian's heart skipped a beat.
Damn it.
It really is.
The technologies I mentioned were concepts that were only proposed by the 410 Office in 2009.
Prior to this, domestic anti-fatigue technology had been supported by Zhao Zhenshi - and it has gradually shown a trend of being insufficient.
After all, the hydrogen embrittlement problem of 300M steel has never been properly solved. It was only after the polishing process matured in 2012 that a solution was slowly developed.
I had indeed preconceived the idea before and mixed up the two things.
fine!
Fortunately, I went shopping today, otherwise, I would have missed such an important workmanship flaw.
Thinking of this, he quickly said:
"This problem is not a small one. Fortunately, you raised it."
"Otherwise, it will be very troublesome to optimize it later."
"To solve it, we have to solve it with steel."
"300M steel has major flaws in stress concentration and hydrogen embrittlement issues, which need to be optimized."
"In this case, you can report to the superiors and go to NPU to find Professor Zhao Zhenshi and the 410 Institute to find Professor He Chenli, and ask them to rush to the Materials Research Institute as soon as possible to prepare the 300M steel optimization project."
"This thing is not technically difficult. What we need is experienced engineers to take the lead."
"If everything goes well, the problem will be completely solved in two to three weeks."
"Two or three weeks? Is that enough?"
Liu Xuejian looked at Chen Nian in surprise and asked in disbelief.
He knew that Chen Nian had a strong background and that he was technically strong, but saying this still made him feel a little overconfident.
Chen Nian nodded confidently and replied:
"Don't worry, you report first, and I will say hello later."
"Before the material problem is solved, you first focus on solving the process problem."
"As for whether it can work or not, it's up to us."
Say it, Chen Nian said goodbye to Liu Xuejian and turned to leave.
He didn't want to waste any time now.
Only by solving the steel problem as soon as possible can the H-20 be born in its most perfect form.
A few hours later, Zhao Zhenshi from NPU rushed to the Western Materials Research Institute first.
As soon as he entered the laboratory and saw Guo Qi, who was in charge of the Materials Research Institute, he immediately couldn't help but start complaining:
"Lao Guo, Lao Guo!"
"Your teacher told me, did this mission come from you?!"
"It takes us two weeks to complete the fatigue resistance optimization project of 300M steel. Isn't this sheer nonsense?"
"How long have I been working on the stress-free concentration project? It's almost 20 years!"
"The current result is just 300M steel!"
"You want me to spend two weeks to come up with a breakthrough optimization. Do you think it's possible?"
Seeing Zhao Zhenshi's angry expression, Guo Qi smiled bitterly and was about to answer, but unexpectedly, the other party stopped him with a wave of his hand and continued:
"Yes, I know that He Chenli is also participating this time, and I also know that their 410 Factory's recent project has made some progress, but that is just theoretical progress!"
"As we work on materials, what is the most important thing?"
"Craftsmanship!"
"There's not even a single successful experiment. The data are all derived theoretically. What do you think it's useful for?"
"Is it really that simple? Will the development of materials science be so difficult?"
"Really, Lao Guo, you have a higher status now, you have to speak for us."
"It's not that I don't want to serve the country. I also want the performance of our fighter jets to get better and better, but there are some things where I have more than enough ambition but not enough power!"
"You have to be determined, but you also have to respect objective facts, right?"
After the words were spoken in a crackling voice, Guo Qi felt both amused and helpless.
He moved Zhao Zhenshi to the sofa, poured a cup of tea, and then said:
"Old Zhao, I say you are too hasty."
"Well, I didn't know this until I heard you say it just now. It has nothing to do with our Materials Research Institute."
"However, when you said this long paragraph, I also heard some problems."
"You just said that this project is related to aircraft?"
Zhao Zhenshi nodded immediately and replied:
"Isn't that right? It's the H-20 project! That thing about landing gear fatigue!"
"Oh then I understand."
A confident smile appeared on Guo Qi's face. Zhao Zhenshi looked at him with confusion and asked:
"You understand? Understand what?"
"Of course, we need to understand why this project exists and how it will be implemented."
"What? Are you dizzy? You don't even know where this project came from, but you know how to do it?"
Zhao Zhenshi asked inexplicably.
He carefully examined Guo Qi's expression, trying to find a trace of hypocrisy on his face, but it was obvious that he could not find it at all.
So, he couldn't help but hesitate.
Could it be that I really misunderstood the meaning of my superiors?
Is there really a story behind this project?
He quickly asked:
"Lao Guo, please tell me what's going on."
"I can't tell you. I don't know the specific details of the project."
Guo Qi shook his head and answered, then continued:
"But I can roughly guess where this came from."
"Besides, I also know who I should approach to resolve this matter."
After hearing his words, Zhao Zhenshi became energetic.
"Lao Guo, you mean, there is a way for this project?!"
"I'll tell you the truth if there's a way to do it. There's nothing that can't be done with this type of project."
"??? Why? You mean, the results of this project have already been released, so it's just for free to increase our qualifications?"
"That's not true. You just received the news. I guess the results won't come out so soon."
Zhao Zhenshi couldn't help but feel a little frustrated.
"Should we co-write or do it slowly?"
"You have to do it slowly, but this is slow. It may be a little different from what you understand."
"Let's do this. You sit here for a while. I'll call you later to find out what the outcome is."
"Delayed? How long is the delay?"
Zhao Zhenshi asked quickly.
Guo Qi looked up at the clock hanging on the wall and replied:
"In two hours."
"Why?"
"Don't you watch the time? It's dinner time!"
"No matter how anxious you are, you still have to wait until people finish eating, right?"
"I guess by the time he finishes eating, your problem will be almost solved."
An hour later, as Guo Qi expected, Chen Nian called him after finishing his meal.
"Hey, Xiao Nian, are you talking about 300M steel, right?"
"Hey, I just finished chatting with Professor Zhao. I'm thinking of calling you after seven o'clock."
"Have you eaten yet? Don't be so anxious. Let's put this matter aside for a while. Oh, the documents have been sent to you?"
"Okay, I understand, then I'll tell him."
"Okay, okay, it's up to you."
"Okay, let's do that. Don't be in such a hurry to eat, and pay attention to your health."
"Come and take a look at the institute in two days. We haven't talked for a long time."
"Then it's settled, you rest first and die!"
After gently hanging up the phone, Guo Qi looked at Zhao Zhenshi, who was standing aside blankly, and said:
"The technical documents have been sent to me and will be forwarded to you in a moment."
"It shouldn't be a big problem - later, you just need to take the lead in trial production."
"You mean, the technical improvement documents have already been released?!"
Zhao Zhenshi asked blankly.
"Yeah, what else?"
After hearing Guo Qi's answer, Zhao Zhenshi fell silent completely.
At this moment, he had mixed feelings in his heart.
WTF? !
Why don't you just play with me about warming wine and killing Hua Xiong? ?
In just one meal, I asked you to come up with the results that I have been studying for twenty years but have not yet come up with?
(End of chapter)
