Chapter 263 Reality is far more magical than fiction
"Hehe, at that time I thought that asphalt coke and sulfur-modified asphalt binder were a perfect match, a bit like complementing like, so I didn't consider using petroleum coke as the main ingredient."

In fact, we cannot laugh at the Carbon Research Institute. In the absence of systematic theoretical support and perfect testing methods, this simple starting point may not be a bad thing.

However, the Carbon Research Institute cannot be laughed at. Old Duan can still laugh at him, because he is an acquaintance. This is called taking advantage of the acquaintance.

However, Old Duan, who was being taken advantage of, didn't mind at all. Instead, he was delighted and said, "Director Gao, please say hello for me and let me borrow your confidential channel."

It would take several days for me to bring the news back, and all the time would be wasted on the road. I should just call and pass the news back first, and let the hospital get started first.

Mr. Cai looked confused. Don’t you even ask a few more questions about the principle or the reason?
But it was obvious that Duan Gong had no such idea at all. After Gao Zhendong called the confidential room, he happily followed the technician Gao Zhendong had invited to lead the way.

Mr. Cai looked at Mr. Duan as he left the room, and Gao Zhendong turned to him with a smile, "Mr. Cai, I just heard from Mr. Duan that you also have something to ask me?"

Mr. Cai took off his glasses, wiped off the non-existent moisture on them, and calmed himself down: "Yes, Director Gao, two things, one thing, it seems that you and Engineer Duan have already solved it just now."

He didn't know whether the problem had been solved, but judging from Duan Gong's expression, there should be no problem.

Gao Zhendong nodded: "What about the other one?"

Mr. Cai pointed to the test results of the tungsten-molybdenum alloy that Lao Duan had just handed to him. He had never seen this thing, but he knew what it contained.

"I'm sorry about this. When I was at the Carbon Research Institute, I overheard some test results of your material. It's very useful to us, so I couldn't help but come here. It may be a bit presumptuous. I apologize." Mr. Cai spoke very politely.

Gao Zhendong smiled and said, "Mr. Cai, you are too polite. This is not a confidential item. I just made it on a whim. What is Mr. Cai interested in? Let's exchange ideas."

Really not confidential? Maybe this thing was not confidential in the first place, but because it was made by you, it is hard to say.

However, Mr. Cai did not dwell on this question, but instead talked about his needs: "Can I see its complete performance and test results?"

He heard a small part of the content, but he had never seen the whole thing.

Gao Zhendong handed over the test report: "Whatever you want." Since he was the user of the Carbon Research Institute's high-performance graphite throat lining, his background was self-evident, an institute related to rocket engines. And it was not an ordinary institute. As far as Gao Zhendong knew, the material was used on large and medium-sized rockets.

However, the range of large and medium-sized sky rockets is actually quite wide, and it is hard to say which one it is. Of course, there are not many models under development now.

Mr. Cai read the test report carefully, his expression becoming more and more excited. It was like finding something he had been looking for for a long time without any effort.

Gao Zhendong did not disturb him. He maintained the highest respect for them.

After a long while, Mr. Cai raised his head and said, "Director Gao, this material is very meaningful to us. I would like to ask, can this material be produced stably?"

He didn't even ask about the cost! Gao Zhendong thought.

The phrase "stable production" includes a lot of things, such as whether the technology and process are stable, whether they are obtained from outside but not completely copied, whether there is a stable source of raw materials, etc.

Gao Zhendong smiled and said, "That's no problem. This thing was produced by me and my factory staff using our factory's equipment. However, it uses a relatively scarce metal, which accounts for a large proportion, so large quantities are not possible for the time being, but small quantities are fine."

Molybdenum is used in it, accounting for as much as 50%. If this is used in large quantities as a common material, it will cause certain troubles. As for the remaining tungsten, there is no need to say anything. We are a country where even shotguns use tungsten alloy bullets.

Mr. Cai was not disappointed when he heard this, but was delighted: "Small batch is fine, small batch is fine."

After hearing his words, Gao Zhendong roughly knew what he was going to do with it.

There are simply too many conditions given, and the range of guessing is too narrow, and the possibilities are too few.

The users of graphite throat linings must be rocket engineers.

It is not very possible to use tungsten-molybdenum alloy to make rocket engine throat liner. For them, the density of tungsten-molybdenum alloy is too large. When the performance of graphite throat liner is similar to that of tungsten-molybdenum alloy, graphite is definitely the preferred choice.

Similarly, the engine casing and nozzle are also unlikely. Although tungsten-molybdenum alloy can be used in many places, the main test projects that Gao Zhendong sent to the Carbon Research Institute are all about high-temperature resistant applications on rockets. Therefore, the direction in which Mr. Cai can apply the test results after learning about them is most likely in this direction.

For high temperature applications, not throat liners, not nozzles, not engine cases, and as long as they are in small batches, then there is only one possibility.

Gao Zhendong smiled and said, "Well, this thing is indeed quite suitable for use as a gas rudder."

As soon as these words came out, Mr. Cai was immediately stunned. Impossible!!! How did he know what I was going to do with it?
Is this a spy? No, no, you must be kidding. A spy would never expose himself. Moreover, judging from his situation, this is simply a fantasy.

How did he know I was going to use it to make a gas rudder? You have to know that these days, even most military workers don't know what a gas rudder is, and what the difference is between it and an air rudder. Did he just rely on his own knowledge and guess what he said? This is too incredible.

The gas rudder is a device that controls the missile's direction by deflecting the rocket engine's gas flow at a certain angle.

Compared with air rudders, it is more efficient, usable at low speeds, and most importantly, usable outside the atmosphere!
There are disadvantages as well. The working conditions are harsh, the material requirements are high, and it stops working when the rocket engine stops working.

Gao Zhendong didn't feel any psychological burden to say it directly. You didn't say it, so I guessed it. But he still added: "I also plan to use it to make a gas rudder."

This thing is suitable for making gas rudders for all missiles. It has excellent mechanical properties, processing properties, melting point, ablation resistance, thermal shock resistance, storage performance, etc.

Graphite material is not good because it is not as strong as this thing. The ring-shaped component is okay, but it is not suitable as a protruding object working for a long time in high-pressure, high-speed and high-temperature airflow.

In that kind of environment, dozens or hundreds of seconds can really be considered a long working time.

After hearing what Gao Zhendong said, Mr. Cai felt a little relieved. It turned out that he was aiming for the gas rudder materials from the beginning. This made sense.

But Mr. Cai was still shocked. It’s nothing that you just wanted to make gas rudder materials from the beginning, but it’s amazing that you could guess that I also wanted to use it to make gas rudders.

But he no longer cared about this and wanted to settle the matter as soon as possible.

"Director Gao, can you process components of this material as required?"

Gao Zhendong nodded: "No problem, I have a whole research laboratory here, so it's no problem to process small batches. Besides, the processing performance of this material is good, so rolling and forging machines can be used."

The processing performance of tungsten is average because it is too hard, but after forming tungsten-molybdenum alloy, it is much better.

Mr. Cai was delighted, and then thought of another question: "What is the confidentiality level of your factory?"

If the confidentiality conditions are not met, it is not certain that this thing can be produced.

Gao Zhendong smiled and said, "There are special workshops and requirements. I can't tell you more."

Mr. Cai, who was stabbed by his boomerang, was very happy. That was enough. Mr. Cai was not interested in knowing more. Everyone is a confidential personnel. Everyone understands.

The rest of the things were easy to handle, but they didn't need to be done here, nor did they need to be done in person. Duan Gong hadn't come back yet, and it would be very troublesome to open the confidential channel. While waiting for Old Duan, the two chatted.

"Director Gao, I see you are also very interested in computers. Is it very helpful for your research materials?"

These days, computational chemistry is a non-existent field, and simulation of empirical models is almost out of the question, so Mr. Cai's question also shows that he has some understanding of chemistry.

Gao Zhendong shook his head: "Yes, I am very interested. I made the DJS-59. However, in terms of materials, I cannot provide decisive assistance yet, but I can do some auxiliary calculations."

"Oh, it's very convenient to be able to assist in calculations. Now that we have this thing, it will be of great help to our work."

Unlike working with materials, for those who make sky rockets, having a computer can really add even more power.

There are many things that can be calculated, such as aerodynamics, astronomy, ballistics inside and outside the atmosphere, changes in the center of mass of the rocket, and control laws.

This made Gao Zhendong very happy. Isn’t this exactly the result I want? Hahaha.

However, it was only at this time that Mr. Cai realized what Gao Zhendong meant by the first half of his words. It was not that he was slow, but that he had never thought in this direction at the beginning. It was simply science fiction.

He suddenly looked towards Gao Zhendong with a look of shock on his face. His emotions fluctuated even more violently than when Gao Zhendong had just revealed that tungsten-molybdenum alloy was to be used to make the gas rudder.

"Director Gao, do you mean that you designed the DJS-59?" This was so magical that his voice trembled slightly.

Gao Zhendong nodded: "Yes, I did it last year, and then handed it over to the Institute of Computing for mass production. I'm glad that it can help you, which means my work was not in vain."

At this time, Mr. Cai remembered that in all the textbooks, software instructions, assembly language textbooks, and even the latest C language textbooks of DJS-59, there was always a name ranked first among the authors: Gao Zhendong.

So this Gao Zhendong is the same Gao Zhendong? This cannot be blamed on President Cai’s poor memory. It is just that this matter is too illogical. Reality is truly more magical than fiction.

(End of this chapter)