Chapter 447

"Qin Guan, you should pay attention to your body. The doctor has told you that you can't be tired."

At this time, in the helicopter cabin, Xiang Jing made such a kind suggestion to Qin Guan for the first time.

Last time, Qin Guan's coma frightened everyone. They thought it was brain death. As a result, Qin Guan came back to life. After that, Xiang Jing became more careful. We must not let Qin Guan get too tired.

As a result, this guy is still working so hard and tired all day. Now he has to go to a university hundreds of kilometers to find a female professor there and visit others in the middle of the night, okay?

However, Qin Guan knew that it was too late and he had no time to layout. If he didn't arrange the single crystal blade he mentioned in advance, what should he do if Niu Guoren went to plant 4430 tomorrow?

It's early to tell a lie. Well, I'm not a liar. I really have this technology. Next to Qin Guan, there is a suitcase full of white paper.

"It's all right. Don't worry about my body." Qin Guan said, "last time it was just an accident. I just fell asleep."

"Asleep? Qin Guan, do you know how many people are worried about you?" Xiang Jing asked involuntarily. At that time, I didn't know what to do. If Qin Guan was gone, what about sister Yutong and the children in her stomach?

Thinking of this, Xiang Jing feels that these men are too selfish.

"The emperor is not in a hurry. The eunuch is in a hurry." now, Qin Guan can finally take revenge. When Xiang Jing just met him, he tossed himself. Now, it's a good taste of revenge.

"You!" Xiang Jing was about to get angry.

"Hey, I have instructed 6611 Research Institute to take out a loan. We may need our help in the loan procedures. Xiang Jing, as my secretary, you must take responsibility in the future." Qin Guan said.

Hearing Qin Guan talking about business, Xiang Jing can only nod. Who would have thought that the front-line scientific researchers were so embarrassed. Xiang Jing will try her best to do this.

Having said this, Xiang Jingcai recalled: "don't change the topic for me!"

The roar of the engine, mixed with Xiang Jing's angry voice, soon, the University arrived.

I thought I would go to Professor Zhang's house to trouble her, but after landing on the University playground, Qin Guan knew that Professor Zhang was still in the laboratory.

It's early morning now. Unexpectedly, Professor Zhang is also working hard for the country's scientific and technological progress. Qin Guan can't help but respect these scientific researchers.

Materials science can't get knowledge directly from books. It can only be done in the laboratory. At the same time, it can be manufactured in the laboratory. In industrial production, how to improve the output and yield is also a big problem.

The science of materials seems quite insignificant. For example, in later generations, the most popular one is computers. After studying for several years and becoming a programmer, with a monthly income of more than 10000, it's just the beginning.

Materials science, which is unknown, is the cornerstone of national scientific and technological progress and national defense industry. If we want to build an aircraft carrier, the materials used in the hull of the aircraft carrier are quite special. We must make a breakthrough in materials. The barrier cable used on the aircraft carrier is also specially made.

In the aircraft engine, it depends more on the progress of materials.

At the same time, when engaging in materials, we should also endure loneliness. The state's allocation is destined not to be too much, nor will it be as rich as the electronic industry. Many people are doing their best for the progress of national technology with meager wages.

Like now. When several people entered the outside of the material research room, they had been asked to change into dust-free clothes. Then, after blowing and washing, they entered the research room.

Yes, like chip production, material research must be absolutely dust-free. When advanced materials are studied, a little impurity in them will bring great changes to the properties of the materials.

It's a little hot inside.

Wearing a mask, Professor Zhang, after pointing out the operation of several students, paced and walked this way.

She is already in her forties. It is the golden age full of energy. The bitter years have sharpened her stronger character. At this time, with the transformation of the country, she finally doesn't have to worry about any political movement and can engage in scientific research quietly.

Moreover, now, with the introduction of Spey engine projects, there will be a large number of technology updates. These technologies can be obtained synchronously, verified in the laboratory, and ideas can be obtained from these projects, so as to promote the progress of our own research projects.

For example, now they are carrying out the research on the spar free hollow guide vane at the first stage of Spey low pressure, and have made great progress.

"Welcome, general manager Qin Guan. Last time you went to Luoluo company in NiuGuo for negotiation, Lao Wu told us what happened. Thanks to you." although Professor Zhang didn't go to NiuGuo, he has a close relationship with Lao Wu who is in charge of the whole project and has heard about it for a long time.

Thanks to Qin Guan's credit, Niu Guo handed over a batch of production technology of engine parts, which opened his eyes. Now, Professor Zhang is looking forward to hearing that Qin Guan is coming.

"I just moved my mouth. We still need experts like you to make progress in the whole project of Spey," Qin Guan said.

"Expert? General manager Qin, in your negotiation with NiuGuo, you mentioned the advanced single crystal air-cooled turbine blade, which is the most important? I am very interested and want to visit you for advice." Professor Zhang said.

Ask me for advice? I'm looking for you! Qin Guan several people sat in a corner of the laboratory. Under the dim light, Professor Zhang's eyes twinkled with excitement.

Qin Guan was immediately under great pressure. What should we do?

"Professor Zhang, what technology do you think should be used to make this kind of turbine blade?" Qin Guan asked.

"For investment casting technology without allowance, we should develop advanced metal materials for turbine blades, especially rhenium nickel alloy, and the ceramic core is the most critical in production."

The casting process is to make a mold first, then melt the metal, pour it in, cool it, and then form it.

Common molds are made of sand. For example, the cylinder block of later piston engines is also made of sand. After it is built, knock off the sand and wash it clean, and the cylinder block will come out.

However, sand is definitely not good for making engine blades, because these metals are high-temperature resistant metals, and the temperature when melting is also quite high, so the sand can't bear it. At the same time, the sand is too rough, so advanced high-temperature resistant molds must be used.

Therefore, ceramic materials are the top priority. Although the Han Dynasty can produce exquisite pottery in ancient times, the ceramic mold in the casting of engine blades is still blank. In particular, to make hollow blades, there must also be a ceramic inner core.