After listening to Lin Guanghua's story, Zhuang Jianye couldn't help but be a little surprised, he really didn't expect this guy to have such a miserable life in the second workshop of the final assembly, and he should be divided if he did a good job, after all, the chief engineer personally explained it, and there was no reason not to take it seriously.

If it doesn't work out, it's all Lin Guanghua's responsibility, because the second workshop of the assembly said that they lack such talents, so they transferred Lin Guanghua over, since it can't be done without this talent, who else can it be?

What to do if you can't figure it out, it's very simple, just go directly to the twenty-third branch factory, since you have taken the responsibility, you have to bear the consequences, as for the task assigned by the chief engineer, and then find a talent, anyway, there are so many college students in Yonghong factory, there are always wronged people who are willing to top the cylinder.

Zhuang Jianye really sympathized with the person in front of him, and climbed up with his heart, but the result was good, he climbed into the fire pit all of a sudden, and he couldn't get out.

Seeing that Zhuang Jianye just showed a sympathetic look, but did not speak, Lin Guanghua finally became anxious, Zhuang Jianye was the only person in the factory who proposed the brazing process, and it was not an exaggeration to say that it was his last straw, if Zhuang Jianye couldn't help, then he could only roll up the cover and go to the twenty-third factory, as long as he thought about those young people who returned to the city with a headache for the police, Lin Guanghua only felt that the future was bleak.

So he was ready to muster up the courage to ask again, and at this moment, he saw the manuscript on the table with several large crosses drawn, and suddenly his eyes lit up and said, "Are you writing a paper?"

Zhuang Jianye nodded: "Yes!"

Lin Guanghua hurriedly and mysteriously continued: "My teacher at the university has recently been transferred to the editorial department of the Journal of Aeronautics, and we have a good relationship, as long as you help me, I guarantee that as long as your paper is not written out of line, it can be published in the Journal of Aeronautics." ”

Journal of Aeronautics is the core journal of the aviation industry, and Zhuang Jianye has never published an article on it in his two lifetimes.

I didn't expect that just about to write a paper in this life, someone sent an invitation to the core journal, Zhuang Jianye said that it was fake, you must know that his father-in-law forced him to write a paper and publish it in order to continue to promote and lay the foundation in the future.

But after thinking about it, he was quickly vetoed by himself, without him, just because Yonghong factory really lacks the application basis of related processes, after all, the brazing process of aviation products is different from that of general industrial products, and each step is strictly not to mention, and it is very difficult.

If you have time to take your time, it's nothing, only a week is too short, even if the gods go down to earth, they can't do it.

So he shook his head: "The time is too short, and there is a lack of supporting hardware in the factory, really, it's not that I don't help you, I really don't have this condition." ”

When Lin Guanghua heard this, his face instantly turned gray, Zhuang Jianye said the truth, Yonghong Factory has never been on the brazing process, using the old-fashioned welding process in the late fifties of the Soviet Union, the lack of hardware equipment is the biggest limitation, even if the theory is angry, there is no practical verification, it is still not convincing.

Realizing this, Lin Guanghua finally accepted his fate, thinking that he would go to the 23rd branch factory soon, a sadness came to his heart, sighed, with a little decomposition, as if to uncover the mystery, and asked: "Then can you tell me what hardware you need?

Zhuang Jianye filled the empty tea jar for Lin Guanghua to drink, and then looked at Lin Guanghua with pity: "Don't talk about the vacuum brazing furnace, our factory doesn't have it at all, but it doesn't matter, the welding research institute in the province has a small test furnace, anyway, the top cover of the maze is not big, it can barely be used, the key is the material!"

Hearing that there was a place to replace the key equipment, Lin Guanghua's disappointed eyes gradually regained his brilliance, and he hurriedly asked, "What material?"

"Metal felt!" Zhuang Jianye said.

Hearing this, Lin Guanghua was stunned for a moment, and immediately asked about the specific situation of the metal felt, since everything was said about this, Zhuang Jianye also introduced the situation of the metal felt.

The so-called metal felt is a kind of metal fiber through non-woven paving, stacking and then sintering at high temperature to make a material, the general metal felt due to good filtration, generally used in polymer filtration, electronic high temperature gas dust removal and other fields.

However, aerospace-grade metal felt is not just a filter, but an excellent sealing and gasket material, and it is important to know that jet engines require materials that are durable, lightweight, and safe due to their unique structure and working environment.

Therefore, the general gasket sealing material is not suitable for aero engines at all, so people think of using some durable metal alloy sintered metal felt to play this important role, among which the most widely used is a chromium-nickel ratio between 0.25~0.408, carbon-nickel ratio between 0.12~0.15 alloy metal felt.

This kind of metal felt can not only withstand the high temperature of nearly 900 degrees Celsius, but also the sealing effect is also very good, Zhuang Jianye has used this material several times in his previous life, and the effect is very good.

It's a pity that this kind of material can't be produced in China at all, as for the preparation process of the material, it is a science and technology tree that goes straight to the sky, Zhuang Jianye's own one has not yet figured it out, so naturally he can't understand the others.

Because of this, even if he writes the process of the labyrinth top cover in black and white clearly, it is in vain, and it is difficult for a clever woman to cook without rice, and there is a lack of key materials, everything is in vain.

This is also why, after he perfunctory Chief Engineer He, he avoided the old man, and he kept his mouth shut about the brazing process on weekdays.

However, looking at Lin Guanghua's reaction, it seemed that he was not giving up, his burning eyes still wanted to fight.

"Are you sure that the composition of that metal felt is between 0.25~0.408 chromium-nickel ratio and 0.12~0.15 carbon-nickel ratio?" Lin Guanghua asked.

"Yes, what? do you have?" Zhuang Jianye asked rhetorically.

"I don't, but my wife does!" replied Lin Guanghua.

This time Zhuang Jianye didn't speak, just looked at Lin Guanghua in surprise, Lin Guanghua understood, and immediately explained, Zhuang Jianye then understood that the No. 10 project that this brother's lover participated in during this time, and tested a lot of high-performance aviation materials during this time, many of which are rare imported products in China, including the metal felt just mentioned.

Coincidentally, these days, Tang Lili often brings materials home to catch up with work, Lin Guanghua accidentally saw the situation about metal felt, and even helped his wife calculate a standard constant, so he will have an impression.

There is such a coincidence in the world, if you want to sleep, someone will send a pillow, Zhuang Jianye can't be surprised, don't say anything, just do it.