"Yes, I may have to go on a business trip to Guangcheng in a few days. Gu Ying had dinner with Xu Xu at noon and spoke.

"I heard, Nantian Group is going to Guangcheng to recruit people?" Xu Xu nodded, he also just came back recently, this month, he went around the world to inspect the island, it was really a leader's words, and he broke his leg below.

"Yes. ”

Gu Ying nodded gently, she is not the front desk now, but transferred to the personnel department and became the deputy manager of the personnel department, as the manager of the personnel department, it is naturally impossible to go to Guangcheng to coordinate this part of the interview, so naturally she has to go over.

This recruitment is not a trivial matter, and the scope of recruitment is very large, involving many universities and vocational colleges in Guangcheng.

Bell bell bell bell

"The boss's phone, I'll answer it first. ”

Xu Xu took out his mobile phone and glanced at it, and hurriedly said, Gu Ying nodded and quickly picked it up.

"Okay... Boss, I'll arrange it. ”

After hanging up the phone, with some joy on his face, he looked at Gu Ying and couldn't help but smile.

"It seems that we can meet in Guangcheng as well. Xu Xu smiled a little shyly, which made Gu Ying slightly flutter, and instantly thought of something.

"The boss is also going to Guangcheng, why?" Gu Ying was puzzled for a moment and roughly guessed.

"I don't know, just let me prepare, and then let me go to Guangcheng together... But we're going to go there a little earlier than you do, and we'll leave tomorrow. Xu shook his head and spoke.

"Tomorrow?" Gu Ying lowered her head and thought about it, and nodded gently.

"How many days?"

"I don't know, look at what the boss means!!"

Xu Xu shook his head, his eyes were completely black, he was only notified last night, and he was completely defenseless.

...........

After Wang Hao notified the permission, he began to prepare some tank information, and he wanted to study some data of the tank in advance.

"Xiaolong, there is so much data for the tank?" Wang Hao looked at the data collected by the dragon brain, which was close to 1TB of data and data, which made him look a little flustered.

"Brother Hao, according to your requirements, it has been classified according to the category, and the information involves various models and origins of domestic tanks, as well as foreign tank data. ”

The metallic voice of the dragon brain sounded in Wang Hao's ears.

Wang Hao nodded lightly, and scanned the information, 1T information, he will definitely not be able to read it in a short time, and he has to spend some time to understand, the information to understand, may not need to understand all the information, only need to understand some domestic tank information, understand and analyze.

As for foreign tank materials, he can learn from them, and he doesn't need to study them.

When Wang Hao looked at the information, the massive amount of information made him seem to have found a state of learning again, and he couldn't help but indulge in it and was very fascinated by it.

Unconsciously, time passed, the sun set in the west, Wang Hao came back to his senses from the information, looked up at the time, and then walked towards Yang Lu's location.

Walking into the production workshop, on a vacant lot, Yang Lu frowned and looked at an engine in front of him, and his expression revealed doubts.

Wang Hao approached, looked at Yang Lu in contemplation, did not bother, but waited quietly.

"Boss, when did you come?"

Yang Ling looked at Wang Hao and immediately saw Wang Hao, and couldn't help but be taken aback.

"Just arrived, what's wrong, have you encountered a problem?" Wang Hao looked at a device in front of Yang Lu with some curiosity, and his face showed curiosity.

"Boss, the turbine blades and turbine discs are not able to withstand high temperatures, but I have been thinking for a long time, but I have not found any available high-temperature resistant materials, and the materials currently used seriously affect the service life of the engine. ”

Yang Lu shook his head and said with some regret in his eyes.

"How long does an engine made of today's materials last? Wang Hao had no surprise on his face, this had long been within his expectations, the biggest problem encountered by jet engines was nothing more than the high temperature resistance of materials.

And the biggest impact is two, one is the turbine blade, the other is the turbine disk.

Turbine blades are generally made of high-temperature resistant alloys, and directional crystallization technology is used to form columnar crystals or single crystals along the longitudinal axis, eliminating grain boundaries perpendicular to the stress direction.

The growth technology of columnar crystal or single crystal, including crystal orientation deviation control and hollow blade casting technology, is a difficult point in the development, the most important of which is high-temperature resistant materials.

Turbine disks, on the other hand, are subjected to more severe and complex stresses due to their relatively low operating temperatures, so isotropic polycrystalline materials are required. Therefore, forged high-temperature resistant alloys are used, forged and molded, and the grains are refined, and the finer the grains, the better.

Alloys are recognized as difficult to forge and are very prone to cracking in forging, which is a major difficulty. In addition, the strengthening of grain boundaries and the control technology of low-melting phase are also difficult.

The international development direction is powder metallurgy turbine disks, which avoid the problems of forging and molding, and greatly refine the grains, which is a revolutionary technology, even in advanced countries, and it is still very early to be practical on a large scale.

Wang Hao does not have this manufacturing process, nor does he deepen the study of materials science, and has mastered the configuration formula of some high-temperature resistant materials.

In fact, there is no problem with the processing technology of Wang Hao's vast R&D center, but it takes time to study high-temperature resistant materials.

"Boss, if the engine is made from the current materials, if other external factors are not considered, it is estimated that if the continuous flight often exceeds five hours, it may be in danger of being scrapped. Yang Lu shook his head regretfully, after going through his research, he realized that this was not as easy as he imagined.

The research is studied, but the jet engine represents a demonstration of comprehensive scientific and technological strength, and he currently has no problem manufacturing a jet engine, but in the practical application of the jet engine, he has encountered a big problem.

The engine he built, after testing, did not meet his requirements at all, and the jet engine of any country that lasted for five hours would be scrapped, and an engine like this could only exist in the laboratory, and it was impossible to build a molded aircraft unless it was improved.

"If it doesn't work continuously, how long does the engine need to rest to prolong its life?" Wang Hao leaned over and looked at Yang Lu's test data seriously.

"It is estimated that after three hours of use, it will take four hours before it can be activated again, which has an impact, but the impact should not be too large. Yang Lu thought back to his previous test, and he really had this data.

"Then don't think about the material first, you first test the stability of the jet engine, and if possible, reduce the size of the jet engine. Wang Hao thought for a while and said that he had no idea of studying materials science recently.

If you want to start the research of materials, you must at least let him raise physics to level seven, but although materials science is not studied for the time being, this does not mean that Wang Hao has given up the practical application of jet engines.

"Brother Hao, what do you mean... Yang Lu's eyes lit up, and an idea arose in his heart.

"That's right, it's the same as you think, using multi-jet engine mode, multiple conversion use, so that the jet engine can work in rotation, to avoid this high-temperature problem, anyway, our aircraft at the time, it is estimated that it is mainly unmanned, and does not carry weapons, and the space of the aircraft is enough for us to use multiple engines, rotational use. ”

Wang Hao nodded lightly and spoke, his tone paused slightly, and he sighed and said,

"At present, the R&D center is still too short of manpower, at present there are only you and Lanwei, you are responsible for the machinery, Lanwei is responsible for the software, but the research and development of materials, we are still stagnant, in layman's terms, we are now serious students, which takes time to improve the overall strength, so you have to be flexible to think of a way. ”

Wang Hao's words made Yang Lu nod, indeed, at present, there are too few personnel in the R&D center, and Yang Lu also knows that the vast R&D center should not be joined by too many people, especially those who don't know, because there are too many secrets here.

The research in this is completely out of Yang Lu's expectations, and now the scientific and technological strength of the vast R&D center can be very strong, but as the boss said, they are students who belong to partial subjects, and at present, there is no one to study materials in their R&D center.

It is also very difficult to purchase jet engine materials, because this kind of material is a material under national control, not to mention the high price, whether it will be sold is the root problem.

"I know, after I tested everything else, I started working on the jet engine downsizing. Yang Lu nodded lightly, this is also a way out of the way.

"Don't worry, I came to you for something, I'm going to follow me to Guangcheng, there is a project, I want you and Lan Wei to be my assistants. ”

Wang Hao did not forget that the purpose of coming to Yang Lu was to prepare to take Yang Lu to Guangcheng to solve the problem of the balance device.

As for why you want to bring Yang Lu over, because if the jet engine is applied, it will definitely become an airplane, and this time taking Yang Lu out is equivalent to letting Yang Lu be proficient in the application of the balance device in advance, and then the aircraft can be installed with a device to balance.

But this floating balancing device and the ground vehicle balancing device are definitely different, and there are many things that need to be improved.

"Lan Wei, this piece, you inform me and leave early tomorrow morning. ”

After Wang Hao finished speaking, he left.

He went to look for the robot test building and Zhang Nan to take a look.

Wang Hao looked at Zhang Nan in the practice and did not disturb, nodded with satisfaction, and watched Zhang Nan connect the five robots, and at the moment after the breakthrough, he took the ball back, and then turned it into lightning in an instant, and started again, using the changing rhythm, the clouds flowed, and the sixth robot passed.

After Zhang Nan passed, he watched the last three robots move and shot directly without thinking about it.

“YES...。 ”

Zhang Nan jumped up excitedly, it wasn't his shot that went in, he was excited that he had finally passed the hard mode, that is, he had passed six people in a row.

Originally, his shot was just a bit of luck, and the goalkeeper robot, using the linkage mechanism and the goalkeeping strength, was completely too perverted.

In the middle, Zhang Nan shot the goal countless times, but every time the robot seemed to have the ability to predict the future, at the time of his shot, the goalkeeper robot waited early on the road of football, and steadily received the income.