Start with the aviation industry

Chapter 197 Thanks to Leihuo Technology Industrial Group
Zhong Zimin got up and was about to leave.

He didn't want to delay for a moment, he just wanted to rush to Fenghuang City as soon as possible to see the quality inspection of those bearing samples with his own eyes.

Lin Feng said, "Mr. Zhong, you haven't even had a sip of tea yet."

Zhong Zimin waved his hand and said, "Don't drink, I'll take a step first."

Almost without turning his head, he walked outside. Seeing this situation, Lin Feng smiled and sent him outside the door.

After watching him leave, Lin Feng thought to himself, Mr. Zhong is really impatient.

Lin Feng was not worried about the quality of the bearings at all, and he was confident enough that the bearings were produced according to the process provided by the system, and they were definitely world-class.

Before returning to the drawing table, Lin Feng picked up the pencil and ruler and continued to draw, planning to hurry up and draw all the remaining design drawings in the next few days.

Let's talk about Zhong Zimin.

In a hurry, he urged again and again, "Xiao Zhang, hurry up, hurry up."

The driver, Xiao Zhang, speeded up again. Fortunately, there were not many cars on the road in this era, and it was not yet the rush hour. Let alone cars, there were not many bicycles.

It would have taken three or four 10 minutes, but Zhong Zimin arrived at the Phoenix office in just over 20 minutes, and went straight to Zhong Jianming's office.

"Chief Jianming, Mr. Lin has given you some bearing samples, and they are now undergoing quality testing in your laboratory."

Zhong Jianming was startled for a moment, but he didn't expect Zhong Zimin to be so anxious, and replied, "Yes, there is such a thing."

Zhong Zimin waved, "Go, take me to your laboratory, I want to have a look at the quality inspection data."

Zhong Jianming personally checked the residual rotation test of two of the bearings in the morning. By this time, he should have carried out some other tests. He also wanted to see the situation of other data.

So, he immediately agreed, "Okay, let's go there together."

The two walked quickly to the bearing laboratory together.

Wei Wenchang was taken aback for a moment, he didn't expect that the representative of Zhong Zongjun would come in person, and immediately got up to greet him after he realized it.

Zhong Jianming waved his hand and said, "Wenchang, how is the quality inspection of the bearing going?"

Wei Wenchanghui reported, "I have finished the rotation test and load test, and I am going to do the life test next."

While talking, he handed over the experiment report.

Zhong Zimin took it first, and then looked at it with a little expectation.

He is not a layman, and he doesn't know anything, at least he knows some professional knowledge about bearings.

After looking at it, he became a little excited, and asked, "From this report, these data are too good. As for the imported bearings, let me have a look at their data."

He flipped through the two quality inspection reports and compared them. At this moment, the verdict was decided!
Oh my God!

It is unbelievable that these bearings of Mr. Lin are even better than those imported from France.

They are all turboshaft [-] bearings, one is manufactured by Hanhai Bearing Co., Ltd., and the other is imported from France, but there is indeed a certain gap between the two. The bearings of Hanhai Bearing Co., Ltd. are obviously better.

It took a long time before Zhong Zimin put down the quality inspection report in his hand.

He was full of emotion, "I didn't see it with my own eyes. I really can't believe it. Our domestic company can produce such a good aviation bearing."

Zhong Jianming said, "We have such aviation bearings in China, which is a great blessing for our aviation industry."

"Yes, Mr. Lin has made another great contribution to the development of our aviation industry."

Both of them are insiders in the aviation industry, and they fully understand the significance of domestic enterprises being able to produce world-class aviation bearings.

At least in the field of aviation bearings, the era of being stuck abroad is gone forever.

A helicopter design institute.

There is a rotor test tower in the center of the empty concrete pad, with a height of three or four floors, which is mainly used for various experiments and design verification of helicopter rotors.

Today, it is very lively here.

Not only Zhou Yuanliang was here in person, but several supervisors in the institute were also standing nearby. Everyone looked hopefully at the workers and technicians who were installing the composite rotor.

After the outbreak of the Gulf War, the world witnessed the power of armed helicopters for the first time, and fighting against ground armor was just like playing games.

The military urgently needs a low-altitude weapon.

In fact, as early as two or three years ago, the military developed the technical indicators of the world-class third-generation special-purpose armed helicopter. Zhou Yuanliang and the others have been starting the pre-research on the key technology of this medium-sized special-purpose armed helicopter.

Composite rotors included.

Wooden rotors were one of the standards for first-generation helicopters, metal rotors were one of the standards for second-generation helicopters, and composite rotors were one of the standards for third-generation helicopters.

Finally, the composite material rotor has not only been designed, but also manufactured according to the design drawings, and is ready for testing and design verification.

Whether he meets the design requirements, the easiest way is to verify, that is, to conduct tests in the rotor test tower in front of him.

No wonder it is so lively here, many people looked up at the composite rotor being installed on the test tower.

"What about the composite rotor, it's exciting to think about it!"

"This is the first time our institute has experimented with a composite rotor."

"Mr. Zhou is really amazing, and finally made a composite rotor."

"."

Everyone said something, and I said something, hotly discussing the composite material rotor, some people even looked at Zhou Yuanliang not far away with admiration.

Director Qian stood next to Zhou Yuanliang, and after looking at the installation of the composite rotor, he asked.

"Old Zhou, how sure are you this time?"

Zhou Yuanliang said, "At least there is more than [-]% certainty."

More than [-]% is not too low. For this kind of design verification, it is already very impressive to have a half-open success rate. It is often a failure, and then summarizes and improves, fails again, and then summarizes and improves until it succeeds.

More than [-]% sure.

Director Qian was in high spirits, talking and laughing happily with the people next to him, and he was in a good mood.

"Mr. Zhou, everything is ready to start the experiment."

Zhou Yuanliang waved his hand and said, "Start the experiment!"

The onlookers who heard that they were going to start the experiment took the initiative to back away. Fortunately, the place is open enough, and there is no problem even if they retreat more than ten meters.

So there was such a scene.

This open-air rotor test tower is the center, and there are at least a hundred people around it, and the distance is generally about 30 to [-] meters.

The test begins.

In everyone's eyes, the rotor started and began to rotate, and the speed became faster and faster. Even at a distance of 30 to [-] meters, you can feel a strong wind.

The rotor rotates at a high speed, generating a strong lift force, which is enough to lift a helicopter weighing more than ten tons.

Through various sensors, the lift force of the rotor, the rotational speed, and even the generated noise and vibration are transmitted to the instrument and equipment.

Several technicians stared nervously at these instruments and equipment, carefully recording various data.

"The lift is normal!"

"Torque is OK!"

"Noise and vibration normal!"

These technicians reported loudly, and the reports reached the ears of Zhou Yuanliang and Director Qian.

At this moment, Zhou Yuanliang was both nervous and full of hope.

To be honest, he himself was not sure enough, and he was also worried about any accidents.Hearing the loud reports of the technicians, he clenched his fists tightly, thinking in his heart, he must succeed.

He also remembered the scene when Lin Feng explained to him the design of the composite rotor.

Mr. Lin, I should have paid attention to your design and basically understood it. This time it should be successful.

Suddenly, he thought a little bit worriedly, after the design drawings are drawn, he should take the design drawings to Mr. Lin for advice and ask him to check it out for me.

During the whole experiment process, Zhou Yuanliang's mood never calmed down. He thought a lot, and his clenched palms were sweating without him even noticing it.

The test is finally complete.

The test report was also printed out, and a designer in charge came over excitedly with the test report, and reported happily, "Mr. Zhou, there are basically no problems, and the design verification has basically passed."

Zhou Yuanliang took the test report and looked at it first. The main design indicators were basically met, with only a few minor problems.

Immediately, he felt relieved.

"Director Qian, please take a look at the test report. The test has passed. The composite rotor basically meets the design requirements. The key technology of the composite rotor for our future medium-sized special-purpose armed helicopter has been overcome by us."

Director Qian took the test report and looked through it, and then he became a little excited.

"Okay, great, we finally conquered a key technology!"

The news quickly spread around.

"What, passed the design verification once!"

"so amazing!"

"President Zhou is mighty!
Excited shouts sounded from all around, and then I don't know who started to applaud, and there was warm applause at the scene.

Next, the Design Institute held a commendation meeting.

The huge auditorium was full of seats.

The leaders of the design institute, all the experts, and the backbone of the design are all sitting here, and Zhou Yuanliang is talking about his successful design experience on the speech table.

"Comrades, for the successful design of the composite rotor, I would first like to thank Leihuo Technology and Industry Group!"

what!
The first one would like to thank Leihuo Technology Industrial Group! ! !

so, what happened?
There were whispers in the originally relatively quiet auditorium, and many people whispered to the people beside them. They didn't understand why Zhou Yuanliang would say that.

Director Qian and the others were equally puzzled, with questioning expressions in their eyes.

Zhou Yuanliang smiled slightly, and said loudly into the microphone, "Maybe a few people know that I went to Leihuo Technology Industrial Group a few months ago. In fact, I went to ask them for advice."

"Leihuo Technology Industrial Group is designing and developing a medium-sized transport helicopter. They have completed the design and development of several key technologies, including the design of the composite rotor."

"I would like to thank Mr. Lin, he unreservedly explained to me the key technologies of composite rotor design."

At least one-third of Zhou Yuanliang's speech was thanks to Leihuo Technology Industry Group. As for the successful experience, he attributed it to Lin Feng's technical guidance.

The speech is over.

The entire auditorium was completely lively.

"It turned out to be borrowed from the technology of Leihuo Technology Industry Group."

"Boss Lin is really generous, actually sharing such a critical technology with President Zhou."

"If there is a chance, I really want to go to Leihuo Technology Industrial Group to take a look."

"."

In any case, the key technology of the composite rotor was considered a breakthrough. Director Qian gave an impassioned speech, praised Zhou Yuanliang's technical team, and awarded bonuses and certificates.

Zhou Yuanliang is an expert, responsible for the design and development of the entire power system of the future medium-sized special armed helicopter. The composite rotor is only a part of the power system.

In addition to this key technology, there are several other key technologies waiting for him to lead the technical team to overcome.

In addition to involving a number of key technologies, the power system is also the system with the largest number and types of bearings used on helicopters.

Because of dedicated armed helicopters, it is an eternal theme to consider localization.

If you can’t import it, try not to import it, and if you really need to import it, you should also strive to achieve localization, including the aviation bearings needed for this helicopter.

Zhou Yuanliang and the others have cooperated with a very powerful bearing manufacturer in China, and the bearing samples have also been sent to Zhou Yuanliang's laboratory.

After a series of experiments, the situation is not ideal.

A backbone of his technical team is reporting to him worriedly, "Mr. Zhou, the situation is extremely unsatisfactory. The bearing factory needs to tackle key problems again and strive to improve the quality of the bearings."

Zhou Yuanliang pondered for a moment, then said slowly, "How many hours are the service life of the bearings they provided?"

"Mr. Zhou, through our tests, if these bearings are installed on our future special armed helicopters, the service life will only be about 300 hours."

What, only 300 hours.

This time is a little short.

After a long time, Zhou Yuanliang said, "I will personally communicate with the bearing factory and ask them to improve the quality of the bearings and increase their service life."

"Mr. Zhou, if they can't improve the service life in a short period of time, it will be a troublesome thing."

Zhou Yuanliang sighed helplessly, "If the service life of the bearing cannot be improved in the next one or two years, then we can only make do with it."

"Well, I hope this doesn't happen. Even if the service life of their bearings can be increased to 500 hours in the next two years, it's still possible."

What could be done, he really didn't dare to have too high hopes.

The production and manufacturing technology of cutting-edge aviation bearings is firmly grasped by a few companies in the world. It is very difficult to increase the service life of bearings from 300 hours to 500 hours within one or two years.

in the office.

Lin Feng was making a phone call when Xiao Xunhua called from Shenhai City to report the current situation of Hanhai Bearing Co., Ltd.

In addition to the bearing samples of the LH1500 turboshaft engine, they are preparing to enter the field of bearings in other industries, such as machine tool bearings, gasoline and diesel bearings, and so on.

Lin Feng agreed, they are highly independent in everything, but repeatedly reminded that the technology must be strictly preserved, and those who can apply for international patents must hurry up to apply for international patents.

This is a pioneering bearing manufacturing process. The new process can also apply for patents. In addition to domestic patents, international patents are also required.

Lin Feng also said that the aviation bearing market is relatively large, and Hanhai Bearing Co., Ltd. must make this market bigger and stronger, and it is best to become a big brother in the aviation bearing market.

First of all, we can start from the domestic aviation bearing market, such as the aviation bearings of turboshaft eight and turboprop six engines.

After talking on the phone for a long time, Xiao Xunhua basically made two or three calls for such reports every month.

After finishing the call, Lin Feng went to the drawing room next door and finished drawing the last design drawing.

So far, this transport helicopter needs to draw all the design drawings drawn by Lin Feng. Lin Feng is going to go to Leihuo Helicopter Design Office tomorrow. He will not only bring these design drawings there, but also tell the designers about the helicopter. design.

Leihuo Helicopter is set up.

Zhao Mingzhi had just finished a technical coordination meeting. Everyone sat together to coordinate some technical issues in the design of the transport helicopter. Not long after returning to the office after the meeting, the phone on the desk rang.

"Director Zhao, I'll come over tomorrow, and I'll bring some design drawings with me. In addition, if you have any questions about the design of this helicopter, you can ask me tomorrow, and I will answer them for you."

"Boss, I'm about to invite you to come over to give technical guidance to everyone. It's great that you can come here tomorrow."

Lin Feng said, "In addition to these, I also want to tell you some good news. The bearings needed for our transport helicopter have been completely localized, and the samples have been manufactured. They have passed the professional quality inspection of the Phoenix Institute and have completely reached the world-class standard. level."

During the phone call, Lin Feng briefly explained the situation.

Immediately, Zhao Mingzhi was completely relieved and happy, "Boss, in this way, some people don't want to get stuck in our neck with the aviation bearing."

After chatting for a few minutes and hanging up the phone, Zhao Mingzhi looked relaxed. The problem of the aviation bearing was solved, and the boss drew a few more design drawings. He became more and more confident in the design of this transport helicopter.

I even wondered how long it would take to complete the overall design work, and when the production of this transport helicopter would start.

In a good mood, I made a cup of coffee by myself, put a spoonful of sugar in it, stirred it full, and then took a sip.

Sitting on the office chair drinking coffee and thinking about the design of the helicopter, the phone on the desk rang again.

The call was from Zhou Yuanliang.

They have been colleagues for more than 20 years, and they have always had a good personal relationship. They will talk on the phone every now and then, and not only chat about life, but also about work.

"Old Zhou, I heard that your composite rotor design was successful, and it passed the design verification in one go."

"Old Zhao, you are really well-informed about the news, you know it so soon."

"Old Zhou, congratulations on conquering a key technology."

After the two chatted on the phone for a while, Zhou Yuanliang changed the subject and sighed softly, "Although the key technology of the composite rotor has been overcome, we have encountered another difficult matter."

(End of this chapter)