Chapter 447: Visit Professor Zhang

"Qin Guan, you have to pay attention to your body. The doctor has already explained that you can't make you tired."
At this time, in the cabin of the helicopter, Xiang Jing actually gave such kind advice to Qin Guan for the first time.
The last time Qin Guan's coma scared everyone, they thought it was brain death. As a result, Qin Guan came back to life. After that, Xiang Jing became more careful, absolutely not letting Qin Guan be overly tired.
As a result, this guy is still so desperate and tiring for a day. Now he has to go to a university hundreds of kilometers to find a female professor there and visit someone in the middle of the night, okay?
However, Qin Guan knew that time was too late and he didn't have time to make arrangements. If he didn't arrange the single crystal blade thing he mentioned in advance, what if Niu Guoren went to the 4430 factory tomorrow?
It's early to round a lie. Well, I'm not lying. I really have this technique. Next to Qin Guan, there is a suitcase, and there is nothing in it.
"It's okay, don't worry about my body." Qin Guan said: "It was just an accident last time. It was because I fell asleep."
"Asleep? Qin Guan, do you know how many people are worried about you?" Xiang Jing couldn't help but ask. At that time, I didn't know what to do. If Qin Guan was gone, what about Sister Yutong and the child in her stomach?
Thinking of this, Xiang Jing felt that these men were too selfish.
"The emperor is not in a hurry, and the is in a hurry." Now, Qin Guan can finally get revenge, thinking that when Xiang Jing first met with him, he tossed himself so much. Now, this revenge is really good.
"You!" Xiang Jing immediately became angry.
"Hey, I have instructed the 6611 Institute to take a loan. We may need our help with the loan procedures. Xiang Jing, as my secretary in the future, you must take the responsibility." Qin Guan said.
Hearing Qin Guan talking about business, Xiang Jing could only nod his head. Who could have imagined that front-line scientific researchers were so embarrassed that Xiang Jing would definitely do his best to do this.
After talking about this matter, Xiang Jing recalled: "Don't change the subject 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 was already early in the morning. Unexpectedly, Professor Zhang was also working hard for the country's scientific and technological progress. Qin Guan couldn't help but respect these scientific researchers.
Materials science can’t get knowledge directly from books. It can only be done in a laboratory. At the same time, it can be manufactured in a laboratory. In industrial production, how to increase output and yield is also a big problem.
Materials science seems to be rather inconspicuous. Like later generations, the most popular thing is computers. After a few years of studying, becoming a programmer and earning more than ten thousand a month, it is just the beginning.
The material science is unknown, but it is the cornerstone that supports the progress of national science and technology and supports the defense industry. We want to build aircraft carriers. The materials used for the hull of aircraft carriers are quite special. We must break through in materials and block the use of aircraft carriers. The cable is also specially made.
In the aircraft engine, it is more dependent on the progress of materials.
At the same time, it is necessary to be able to withstand loneliness when dealing with materials. The state's funding is destined to not be too much, and it will not be as rich as the electronics industry. Many people are taking meager wages for the country's technological progress. And do your best.
Like now. When a few people walked outside the materials research room, they were already asked to put on clean clothes, and then they entered the research room after being purged.
Yes, material research is the same as chip production. It must be absolutely dust-free. When advanced materials are researched, the slightest amount of impurities in them will bring great changes in the properties of the materials.
It's hot inside.
Professor Zhang, wearing a mask, walked towards this side after giving instructions to a few students.
She is already more than 40 years old. It is the golden age full of enthusiasm. Those suffering years have sharpened her stronger character. At this time, with the transformation of the country, she finally does not have to worry about political movements. Doing scientific research quietly.
Moreover, now, with the introduction of the Spey engine project, there will be a large number of technological updates. These technologies can be obtained simultaneously, and then verified in the laboratory, and ideas can also be obtained from these projects, and then promoted. Research project progress.
For example, they are now conducting research on Spey low-pressure first-stage hollow guide vanes without margin, and they have made great progress.
"Welcome everyone, General Manager Qin Guan, last time you went to Niu Country's Luoluo Company to negotiate, Lao Wu told us what happened, thanks to you." Although Professor Zhang did not go to Niu Country, but, He has a close relationship with Mr. Wu, who is in charge of the entire project.
Because of Qin Guan's contribution, Niu Guo has transferred a batch of engine parts production technology, which opened his eyes. Now, when he heard that Qin Guan is coming, Professor Zhang is also looking forward to it.
"I just moved my lips. The progress of our Spey project still needs an expert like you." Qin Guan said.
"Expert? General Manager Qin, you mentioned the advanced single-crystal air-cooled turbine blades in your negotiations with Niu Guo. Isn't this the most important thing? I'm all very interested. I want to visit you and ask for advice. "Professor Zhang said.
Ask me for advice? I'm here to find you! Several people Qin Guan sat in a corner of the laboratory. Under the dim light, Professor Zhang's eyes flashed with excitement.
Qin Guan was immediately stressed, what should I do?
"Professor Zhang, what technology do you think should be used to manufacture this kind of turbine blade?" Qin Guan asked.
"Investment mold no margin precision casting technology, we need to develop advanced metal materials used in turbine blades, especially rhenium-nickel alloy, and in production, the ceramic core inside is the most critical."
The casting process is to first make a mold, then melt the metal and pour it in, and then cool it to form.
A common mold is sand. Sand is used to make molds. For example, the cylinder block of a later generation piston engine is also a mold made of sand. After the mold is made, the sand is knocked out, rinsed, and the cylinder body comes out.
However, sand is definitely not good for making engine blades, because these metals are high temperature resistant metals, and the melting temperature is quite high, and the sand cannot withstand it. At the same time, the sand is too rough and requires advanced high temperature molds.
Therefore, ceramic materials are the top priority. Although Han was able to produce exquisite pottery in ancient times, the ceramic molds used in the casting of engine blades are still blank, especially for hollow blades, which must also have ceramic cores inside. .