Chapter 92 Gao Zhendong is a spy! !
Lin Lianwei started the air-to-air dialogue that had happened several times between him and Gao Zhendong again, but this time, he was much more skillful.
And today, I just want to broaden my mind. There are some ideas in the courtyard. I came to Gao Zhendong to brainstorm ideas, not to solve an urgent problem.
“It’s still a question of heat resistance, which is about 1800~2000 degrees. It can be used once, and the working time is not long. It can be attached to the metal substrate. The substrate itself can withstand temperatures of about 1,000 degrees. But One problem is that he works in a high-temperature, high-pressure, high-speed gas atmosphere.”
Look, Lin Lianwei did it in one go, and he became a master.
Lin Lianwei and the land engineer and model chief engineer above him all estimated that Gao Zhendong had guessed what they were doing, but they still couldn't say it openly.
In turn, Gao Zhendong also knew that they knew that he already knew, but Gao Zhendong could not tell them.
But at least this estimate allows Lin Lianwei and his design institute to describe the problem as clearly as possible within the limits allowed by the rules.
No more guessing games this time, the tail nozzle of the missile's rocket motor is gone.
But I don’t know how long their working time is, but considering that it should be an infrared combat bomb, it won’t be long. It is basically calculated in seconds.
After considering the technologies that may be available now, Gao Zhendong said the answer in one breath: "Molybdenum, tungsten, tungsten-silver alloy, tungsten-copper alloy, cermet or graphite."
As for carbon-carbon composite materials , needless to say at this time.
The previous things were barely within Lin Lianwei's knowledge, but the graphite thing made him a little confused.
"Graphite? Isn't that carbon? It works in a high-temperature, high-pressure, high-speed gas."
"That's right, what's wrong with carbon? Isn't diamond also carbon? Why is it so Hard? The heat resistance of graphite is very good before it is burned. Isn’t this a one-time use? Just make it thick enough.”
After thinking about it, Gao Zhendong added: "Polycrystalline graphite is fine. It's cheap and can be infiltrated with silicon or copper. But even better is pyrolytic graphite, which can be made using vapor deposition."
At this time in China, there was no such thing as pyrolytic graphite. Research began in the early 1960s. By the time it was actually used in missile rockets, it was already in the 1970s.
But this does not affect Gao Zhendong from speaking out so loudly. In the field of materials, his current situation allows him to say more.
These things were completely beyond Lin Lianwei's knowledge, so he wrote them down stupidly.
Gao Zhendong thought for a moment and added: "If the working hours are long, the design will be more complicated."
This sentence is very spiritual. It only needs to say, "If the rocket engine nozzle works for a long time, it will be more complicated." In fact, by this time, both parties know that the other party knows, but they still can't say it. It's very complicated. funny.
The reason why Gao Zhendong knows this is because as a senior military fan, in his previous life when he was in the second phase of high school, he bought some professional books on military industry in order to compete with people online.
But later on, when he swam in the sea of automation, he almost couldn’t make it to the shore, and those practices and ideas he had learned in his second year of study gradually faded away.
Among them, one is published publicly, talking about rocket engine design. It’s amazing. In Gao Zhendong’s previous life, these books that only dealt with outdated and basic theories and technologies have been published publicly.
But what was outdated at that time will no longer be outdated now.
Gao Zhendong read this book carefully. He has a good memory now, but he has to think back before he can remember it.
If no one reminds and guides him, he will not be able to remember it, which is a bit much.
Lin Lianwei honestly wrote down every word of Gao Zhendong, and returned to the work unit with a lawsuit on his head. He didn't understand what he was doing, but he still felt that he had gained a lot. Back at the design institute, Lin Lianwei took out what he had learned this time and communicated with the person in charge of the engine and the model chief engineer.
The two of them took a look, hey, Gao Zhendong has quite a lot of ideas, he is indeed a person who deals with materials.
"Molybdenum and tungsten are not suitable. They are heavy and expensive."
"We have not considered tungsten silver and tungsten copper alloy, but it is indeed a way, but the price is also expensive."
"Tungsten should be used as the skeleton, and silver or copper should be used as the perspiration material to further remove the heat."
"Cermet-ceramics can be considered, but firing and adhesion are also problems."
" Polycrystalline graphite? Silicon infiltration or copper infiltration? This seems to be possible and the price should be cheap. We have also considered it, but it is not so clear. ”
"Well, that's right, it's a one-time thing, just burn it out. As long as the ablation rate is stable, the pressure change problem caused by ablation is controllable."
"I have a classmate in Northeast Carbon Research institute, I can ask them if they have any suitable materials.”
“Hey, what is this pyrolytic graphite? I’ve never heard of it.”
"I'll ask my classmate, he may know."
When the two of them said this, they looked at the last line of Lin Lianwei's notebook in a daze, looked at each other, and the chief teacher asked Lin Lianwei: "He is this What does it mean? Did you tell him what it is?"
Lin Lianwei shook his head: "No, he probably has more ideas about long-term continuous working conditions."
The chief engineer smiled: "Maybe he has guessed it, but it's hard to say. After all, you are here Our work at the Research Institute is not a secret. Every time I go to him, the questions I ask are very clear. With his ability, it is not surprising to guess."
Lin Lianwei nodded: "Well, it should be, this time. He didn't even wait for me to say it a second time before he started answering my questions."
The chief engineer happily told Lin Lianwei: "It seems that he really has a lot of ideas about rocket engines, and he can still do it. The kind who solves problems and integrates theory with practice. If anything happens, you should go to him more often."
After thinking about it, he added: "By the way, next time you go there, go to him. The full name of the unit, work department, position, and professional title are all recorded. I will add him to the main researchers of the model. I have harvested so much wool from others, and the honor must be given to them.”
Lin Lianwei responded repeatedly.
The Research Institute was happy that the model development had taken another step forward, but Gao Zhendong returned home after having dinner with his comrades in the scientific research team, and then he rushed into the south room and took out the transistor Computer, continue to debug his minimalist IDE composed of asm, vi, and math.
Just when Gao Zhendong was working in full swing, a person came from the Security Section of the Security Department of the No. 3 Steel Rolling Plant.
The man limped toward the duty room of the Internal Security Department with a cane on his back. The lights in the room illuminated his fat face in the darkness.
——Bang Haizhong.
Walking into the duty room, he was a little out of breath and took out his handkerchief, wiped the sweat from his face, and said loudly to the internal security officer on duty:
"Comrade, I report Gao Zhendong, he is a spy! ! ”
(End of this chapter)