Chapter 474 The Last Board and the Tool Man
Gao Zhendong stayed in the Dongguan Institute for almost seven days. Except for the first two or three days when he dealt with optical system matters, he spent the rest of the time cooperating with the Dongguan Institute to trial-produce fused quartz glass.

Dongguan Institute also mobilized all relevant forces and resources and threw all its efforts into it.

The reason why they were so excited was that as early as the day after they decided to cooperate in making this thing, the Third Rolling Mill sent the small amount of stock that Gao Zhendong had trial-produced on the flying tractor, and the Dongguan Institute received it that afternoon.

Although I haven't yet prototyped it, the sample Gao Zhendong has already made can still be tested, at least to give me some idea.

After a set of tests, there is no need to mention the specific data. The reaction of Dongguang Institute was just one: "Go! We must learn this thing!"

To their surprise, this thing had an advantage that Gao Zhendong himself hadn't mentioned, and Gao Zhendong didn't know about it because he didn't have the equipment to test it.

That is, this material not only has good light transmittance around 350nm, but also maintains good light transmittance in most ultraviolet bands. With this feature, the significance of this thing has changed from a supporting material for the optical system of the lithography machine to an important material for the future ultraviolet optical system.

Moreover, the optical properties can be adjusted by adjusting the elements or compounds doped in it. After this thing is adjusted, even if the working characteristics are similar to existing materials, the thermal expansion coefficient alone is enough to make people tempted.

The measured thermal expansion coefficient is 0.3ppm/℃, which is almost equivalent to no movement at all when used in small-size optical systems.

Engineer Li took the test report and said to Gao Zhendong: "I guarantee the 5μm you asked for. I'll give you a military order, haha."

Their chief engineer also nodded repeatedly: "Yes, we fully support his military order!"

Comrade Gao is a very good client. He not only provides you with topics, but also gives you ideas, devices, materials, and even gives you a set of results. You can't find such a good person anywhere else.

We must unite with such good comrades and good units and do their work solidly, otherwise we will feel guilty.

With this tone, Dongguan Institute moved at a rapid pace, mobilized all relevant resources and supporting factories, and focused all its efforts on this matter.

Comrades at the Dongguan Institute all understood that Gao Zhendong's time here was limited, so they took advantage of this great opportunity, with him personally in charge, to communicate and guide face to face, to get things made first and then talk about improvements.

We will not make any improvements or optimizations on the formula or process for now. We will just follow the requirements given by Gao Zhendong and try to make a batch of real products by hand within this period of time.

Fortunately, the Northeast had strong technical strength at that time, otherwise the gas jet cooling device would not be completed in a short time. Even so, they had to borrow gas jet devices from other factories for other purposes. The effect was not as good as that of Gao Zhendong and his team. After all, the device developed by 1761 was designed in a serious and targeted manner.

Just one day before Gao Zhendong left, the chief engineer of Dongguan Institute, Engineer Li, Gao Zhendong and others gathered together and looked at the foggy translucent rectangle in front of them.

This is the fused quartz optical glass that they have been working on for several days. Since Gao Zhendong had tried to produce it before, there was no need for research time at all. All they had to do was make some adjustments to the existing resources at the Dongguan Institute, so the process was very fast.

The misty, regular rectangles are very beautiful, and have a heavy and rustic beauty compared to the transparent and dazzling shapes.

As for the translucent issue, don't worry. It will be transparent after cutting, grinding and polishing. The translucency is caused by the uneven surface of the material, which leads to inconsistent reflection and refraction directions of light. Filling or removing these bumps will improve the appearance.

Hot knowledge: Don't splash water on the frosted glass of the bathroom window when taking a shower, but you can be more casual about it if the window is covered with frosted glass film.

Li Gong still felt a little unreal: "Comrade Gao, is this thing done just like that?"

The chief engineer was very patient and respected the laws of science: "You can only say that the sample has been trial-produced, but whether it is successful or not, and whether it can catch up with the level of Comrade Gao's original sample, we still have to test it to know."

After saying this, he asked his colleagues in the institute to take samples for testing.

It will take some time to cut, grind and polish this thing.

For dinner that day, the Dongguan Institute and the Carbon Research Institute invited him to have a meal together. Mr. Duan was very honest at the table.

It’s true that Lao Duan is a wonderful person, and this is what makes him wonderful.

When it is time to go, go, without any ambiguity; when it feels wrong, you can bend and stretch, without any force.

People from both units were there, so he didn't have to go ahead under Gao Zhendong's firepower.

The next morning, the inspection personnel of Dongguan Institute, who had been busy for half a day and a night, found the chief engineer and Engineer Li with the test results.

"Chief Engineer, Engineer Li, the results are out!" The inspectors were very excited.

"How is it?" The two people who were talking to Gao Zhendong turned their heads and stared at the inspector.

“Some parameters are better than the sample, and some are worse than the sample, but the deviations are all within a certain range and can be considered consistent.”

There are some differences in the equipment, materials and other environmental conditions on both sides, and the deviations caused by such differences are very normal.

"What about the coefficient of thermal expansion? What about the transmittance?" For the task at hand, these two are the most important. If other parameters are a little off, corresponding adjustments can be made in the design to adapt to them, such as the refractive index.

However, these two cannot be adjusted and will directly affect the results.

"The transmittance is basically the same, with a deviation of 355% to 2% at 3nm, and the thermal expansion coefficient is 0.5ppm." The jet cooling efficiency affects the amorphous structure, so this change is not surprising.

Hearing the result, everyone breathed a sigh of relief, including Gao Zhendong.

"Chief Engineer Gao, don't worry this time. Leave the rest to us." Engineer Li was very excited. The remaining things included the second phase of the optical system project and the fused quartz optical glass material project. It was funny to say that the results came out before the project was even submitted.

Twelve Ministry of Machinery: I am familiar with this matter, you just need to get used to it.

"Okay, then I'll wait for good news." Seeing that the success rate of this gamble is getting higher and higher, Gao Zhendong is much happier than them!

Afternoon, Changji Suburban Airport.

Engineer Li from the Dongguang Institute shook Gao Zhendong's hand and said, "Chief Engineer Gao, we will adjust the beam expansion optical system as soon as possible according to your suggestions, and strive to make it available to you in January or February next year. As for the 5μm micro-projection, don't worry, we will do our best."

Through the comrades from the Carbon Research Institute, they at least knew that Gao Zhendong was the chief engineer, instead of calling him "Comrade Gao, Comrade Gao" as before.

Gao Zhendong smiled and said, "Then I'll leave it to you. On behalf of the 12th Ministry of Machinery, I'd like to thank you in advance."

Twelve Machine Department: Who is this person? You are here to represent us? Oh, Zhendong, that's all right.

Gao Zhendong quickly did a favor for the 12th Ministry of Machine Building. With the current achievements of Dongguan Institute, the last piece of the early integrated circuit technology has been completed!

But his words made Old Duan next to him twitch his face. Aren't you from the Seventeenth Machinery Department? This represents a very far-reaching position.

He came here not only to see Gao Zhendong off, but also because he had something to say to Gao Zhendong.

"Chief Engineer Gao, although we really don't have the manpower to do the thing you mentioned in our hospital, don't worry, as long as you want to do it, just let me know and I will take a leave of absence from the hospital and come to support you."

Old Duan took advantage of no one paying attention and whispered to Gao Zhendong.

Unfortunately, the Carbon Research Institute was unable to spare any staff to work on pyrolytic graphite, even though this was the most relevant to their expertise.

But Old Duan had a hunch that something that could make Gao Zhendong so interested must be extraordinary, and Gao Zhendong would eventually work on this thing, and by then, whether it was done at the Carbon Research Institute or not, it would definitely be a good thing for him to get involved.

He had already understood what Gao Zhendong said, and he had dealt with Gao Zhendong more and was more familiar with Gao Zhendong's style.

Pyrolytic graphite is good, but it needs CVD, and he has already arranged for someone to do CVD. The 1761 Institute is the territory of the th Ministry of Machinery. Is it such a coincidence that someone happened to do CVD? He didn't believe that Gao Zhendong had no influence on this.

It now seems that everything is ready for pyrolytic graphite, except for the east wind, which is the help of people who work with graphite.

As for the research on theories and routes, Lao Duan believes that with the abilities and habits Gao Zhendong has demonstrated in the past, he is absolutely confident in doing this. What is lacking is not the people who can do these core things, but the people who can do the specific implementation, commonly known as tool people.

Old Duan didn't believe that Gao Zhendong could explain everything about pyrolytic graphite so clearly, but he had no idea how to do it?

Impossible! This is not his style.

So he secretly made some advance arrangements with Gao Zhendong, as this was a big issue.

Gao Zhendong was happy. Old Duan had a very smart brain.

"Well, okay, if I have this intention, I will definitely let you know."

Old Duan grinned and laughed. He said that one still has to fight for opportunities by himself.

With the farewell of comrades from the Dongguan Institute, the Carbon Research Institute and local troops, Gao Zhendong and his three companions boarded the plane and then rode on the flying tractor for four hours before returning to Beijing.

It takes shorter time and is faster than in the past. This has nothing to do with the flying tractor itself. It is mainly because the wind is blowing from the north in December, and the flight from Changji to Beijing has a tailwind!
Although the wind is not strong, the speed of the wind still has a very obvious acceleration effect on the flying tractor aircraft. It's really outrageous!

When I returned home in the factory car, it was already the evening of the 60th of the last month of 24. Lou Xiao'e received a call from Gao Zhendong in the morning and came back from Lou's house to wait for him.

As soon as she saw Gao Zhendong, Lou Xiao'e put down the spatula in her hand, cheered and hung herself around his neck.

She guessed that Gao Zhendong had not had dinner, so she was preparing some for him.

Gao Zhendong held her and spun around in circles, thinking: Well, this is a good day, I'll take Xiao'e out for a walk tomorrow.

It’s not that Gao Zhendong thinks this day is a festival, but mainly because this day was a good excuse in his previous life, and he is used to it. Boys who understand will understand.

It was just an excuse to go on a date. As for whether the college students in the previous life really believed in that stuff? That's nonsense. They were more likely to believe in the Flying Spaghetti Cult than that stuff.

(End of this chapter)