Start with the aviation industry

Chapter 316 Assembly of the first LH156 turbofan engine begins

Few people in the entire Leihuo Technology Industry Group really knew what the gift Lin Feng gave Osmond was. No wonder even Zhao Mingzhi was a little curious.

Lin Feng smiled, "You probably wouldn't have guessed that what I gave to Osmond was a single crystal superalloy."

what!
It turned out to be a single crystal superalloy!
Zhao Mingzhi thought in his heart, the boss is really creative, to give such a thing, but, does this have any deep meaning?

Seemingly seeing the doubts in Zhao Mingzhi's heart, Lin Feng said, "What do you think of the quality and performance of our single crystal superalloy?"

Zhao Mingzhi thought for a while, and then replied, "It must be the world's top level, whether it is strength, high temperature resistance, or corrosion resistance, it is completely ahead of any single crystal superalloy of a foreign aviation company."

In the mid-90s, there were very few foreign aviation companies in the world that had mastered the directional solidification technology of nickel-based superalloys, and there were only a few of them.

It can be said that the directional solidification technology of single crystal superalloys at this time is still not perfect, how can it compare with the technology provided by the system, and the quality and performance of the produced single crystal superalloys are much better.

Lin Feng didn't hide anything, and said slowly, "I gave this single crystal superalloy to Osmond for a deep meaning. I hope that Rolls-Royce's single crystal superalloy blades will be produced by us in the future."

That's it!

After understanding this point, Zhao Mingzhi was filled with admiration in his heart. As expected of the boss, his eyes were really far-sighted. If this is really the case in the future, then Leihuo Technology Industrial Group will be praised.

Single crystal superalloy blades are cutting-edge technology products with extremely high technical content. Of course, each blade is also very expensive and very profitable.

Most importantly, once Leihuo Technology Industry Group undertakes the production and manufacturing of all single crystal superalloy blades of Rolls-Royce, then this dependence will be successful.

Just like some of our domestic companies currently need chips from the beautiful country, once a dependency relationship is formed, it is equivalent to being caught by the other party's life, and you have to do what you want.

Not only can you make money, and it's a very lucrative one, but you can also accept an obedient younger brother. Why not do such a good thing.

"Boss, you are amazing!"

Zhao Mingzhi was full of admiration.

Lin Feng smiled heartily, "The next thing we have to do is to wait and let Osmond discover the extraordinaryness of this single crystal superalloy by himself."

Why not take the initiative to tell Osmond.

Lin Feng knew that even if he took the initiative to tell him how excellent this single crystal superalloy is, he probably wouldn't believe it.

As the vice president of Rolls-Royce and the chief technology officer, Osmond is still a little arrogant, thinking that the directional solidification technology of single crystal superalloy they have mastered is the most advanced in the world. The single crystal superalloy they produced High temperature quality and performance are the best.

After Osmond and the group went back, there was basically no news. Lin Feng was not in a hurry, so it didn't matter if he waited. Osmond would probably take the initiative to contact him by then.

Just like that, time passed day by day.

Leihuo Technology Industry Group is developing rapidly as always. The LH165 turbofan engine continues to carry out comprehensive production and manufacturing of parts and components. Parts with drawing numbers one after another are manufactured, and batches of parts are manufactured and put into storage.

The design of the stealth strategic bomber is still progressing very smoothly. One after another, the design drawings are drawn, and the design is completed one by one, and one system after another.

For example, the design work of the tail section, engine exhaust system, landing gear and braking system, radar system, etc. has been completed in succession.

Time to enter 1995.

After the Lunar New Year, all the employees of Leihuo Technology Industrial Group went to work and put into the intense and orderly work again, and the construction of the two major factory areas was also progressing well.

This world-class aircraft manufacturing plant located in Jianghai City has started the main construction of several huge workshop buildings, and the first asphalt laying has been completed on several main roads in the factory area.

The construction of the factory area of ​​Leihuo Weapons Branch located in Hexi, Fenghuang City is not slow. Several factories have completed the foundation construction, and the construction of the main body of the other two factories has begun.

Deep Sea City, Turbofan Engine Company.

The huge assembly plant had been relatively deserted at first, but some workers and technicians gradually appeared in the past few days.

Assembly of components for the first demonstrator begins.

At the production site, workers are busy at several stations, and the assembly of fan discs, compressor rotors, turbine rotors, and combustion chamber components is in progress.

Lin Feng arrived in Shenhai City.

Accompanied by Zheng Xinyuan, the general manager of Leihuo Turbofan Engine, he walked into the aircraft assembly workshop, followed by several people, including Liang Guangwei, the assistant to the general manager of Leihuo Turbofan Engine Company, and Fang Anping from Leihuo Aviation Engine Design Institute. .

The aircraft assembly workshop covers an area of ​​more than [-] square meters. The epoxy resin floor is so smooth that people can be seen. Everyone is wearing snow-white and brand-new shoe covers. Mr. Lin and Zheng Xinyuan are at the forefront.

Zheng Xinyuan introduced, "Boss, a few days ago we started to assemble the components of this verification machine one after another, and in a few days, we will start its final assembly."

In the aircraft assembly process, the components are assembled first, and then the engine is fully assembled on the final assembly platform.

Lin Feng asked, "What about the spare parts, are they all in place?"

Zheng Xinyuan said, "All the purchased parts are in place, and there are more than 100 drawing numbers for the parts we are responsible for manufacturing. It will take about five days at the earliest, and at most a week at the slowest. They will all be manufactured and put into storage."

While listening to Zheng Xinyuan's introduction, Lin Feng led everyone unknowingly to the assembly station of the combustion chamber components.

Two assembly workers, and a supervisor technician beside them, are doing the assembly work of the combustion chamber, and the assembly process regulations are placed beside them.

The main parts of the combustion chamber are the inner and outer flame tubes, plus the outermost combustion chamber casing, which are important and key parts of this engine, all of which are made of superalloy.

The inner and outer flame cylinders are characterized by thin walls, only 1 mm thick, and thousands of small holes, some of which are less than 1 mm in diameter, and the largest hole is only a few millimeters in diameter.

The main function of these small holes is to form an air film on the surface of the flame tube when the high-pressure and high-speed air from the compressor passes through, preventing the burning flame from directly contacting the tube wall, thereby preventing the inner and outer walls of the flame tube from being burned.

Lin Feng picked up the assembly process specification placed next to it and looked through it, then nodded in satisfaction. This process is basically the same as the process provided by the system, and there is not much difference.

For the assembly process of this engine, Lin Feng also worked hard for a while, personally writing out the assembly process of some important and key parts, or writing out the general process steps, everyone can refer to it for detailed writing.

There is nothing wrong with looking through the process regulations, Lin Feng exhorted, "Every process step, without a single process parameter, must strictly follow the requirements of the process regulations, and do not deviate in any way."

"Boss, don't worry, we will definitely operate in strict accordance with the requirements of the process regulations."

I looked at this assembly station and saw that there was no problem, it was just a little slower, but it didn't matter.

Slow work leads to careful work.

This is the first verified assembly, and quality must be the first priority, because this engine will not only undergo test run verification, but also undergo a 300-hour long-term test run.

It is the first time for everyone to assemble, and the assembly experience is insufficient. After having enough assembly experience in the future, the speed will naturally increase, and there is no problem in completing the assembly of an engine in a few days.

Everyone is watching the assembly of the combustion chamber at this assembly station. Something seems to have happened at an assembly station in the distance. Several assembly workers and technicians are gathered there.

This is how the same thing!

Noticing this situation, Lin Feng waved his hand and said, "Come on, let's take a look."

Zheng Xinyuan said in his heart, don't let anything happen. The boss comes here very rarely. If something happens, he will definitely be criticized, and it will not look good.

There is the assembly area of ​​the turbine part, and there are several assembly stations, including the assembly stations of turbine blades and vortex disks, turbine shafts, and turbine rotors.

"What's the matter!"

Zheng Xinyuan was the first to ask in a deep voice, his face was a little ugly, he really thought there must be something wrong.

Seeing so many leaders coming over, and Mr. Lin was also there, these workers and technicians were obviously a little nervous, and all of them lowered their heads all of a sudden, not knowing how to answer.

"Wu Ye, what are you talking about?"

Liang Guangwei knew one of the technicians in charge, so he asked by name directly.

After being called, Wu Ye couldn't keep his head down, although he was nervous, he still said intermittently, "That's the thing, just now Xiao Liu and Xiao Zhang were arguing, why are we such a good turbofan?" The engine uses domestic bearings, Xiao Liu thinks that imported bearings should be used, and Xiao Zhang says that the bearings are products of Hanhai Bearing Group, which are no worse than imported bearings.”

All the bearings of this turbofan engine are all domestically produced, and all are manufactured by Hanhai Bearing Group, without any domestically produced bearings.

All of a sudden, everyone understood what was going on.

Several leaders including Zheng Xinyuan breathed a sigh of relief quietly. It turned out that nothing happened, but a dispute between the two technicians below. One felt that the quality of domestic bearings was not good, and the other supported the products of Hanhai Bearing Group.

As for Lin Feng, his expression turned cold, and he glanced at Xiao Liu.

"Young man, why do you think our domestic bearings are not good enough?"

Seeing that it was Lin Feng who was interrogating, Xiao Liu was too nervous to say a word, lowered his head, and his face was even more red.

Lin Feng said earnestly, "Don't be so obsessed with foreigners, and don't blindly pursue foreign products. You may not know that Hanhai Group is a banner in the field of international bearings, especially in the field of aviation bearings. It accounts for more than half of the world's share. Even Rollo, Pratt & Whitney, General Motors and other companies are using Hanhai Group’s bearings.”

"I can tell you that the aviation bearings of Hanhai Bearing Group are the best in the world, and no bearing company's products can compare with them. Of course, all of our turbofan engines use Hanhai Group's products."

Liang Guangwei added, "Such high-quality bearings are mainly due to the original craftsmanship, and the manufacturing process of these bearings was created by Mr. Lin."

what!
These technicians and workers looked at Lin Feng in astonishment!

It never occurred to him that the boss of his family is so powerful, and the manufacturing process of the world's top bearings was created and developed by Lin Feng.

Cow batch!

Too awesome!

The technician Xiao Liu's face was hot, and he said in a low voice, "Mr. Lin, I'm sorry, I shouldn't belittle our domestic bearings."

Lin Feng just glanced at him, didn't say anything, then walked away from the assembly area, looked at the other stations, and had a good idea of ​​the progress of the assembly of the first verification machine.

Walking out of the aircraft assembly workshop, Lin Feng said with satisfaction, "Mr. Zheng, the progress of the first verification aircraft is much faster than we expected. It is now February 2. It is estimated that the first verification test run can start in early March."

Zheng Xinyuan said confidently, "Boss, we strive to start the first test drive before March 3!"

For the whole day, Lin Feng was basically at Leihuo Engine Company.

In addition to walking around the factory area, he also sat down and listened to the work reports of Zheng Xinyuan and others. Even Lin Feng decided that after the first verification and test run was successfully passed, another 10 units will be fed to prepare for future small-batch production.

Only Lin Feng dared to do this, because he was very confident in this turbofan engine. After it passed the first verification and test run, there should be no design changes, and there would be basically no risk in re-feeding.

The next day, Lin Feng went to Jianghai City.

Compared with a few months ago, there have been earth-shaking changes here.

At that time, it was just a vast yellow land. Now it is a huge construction site with an area of ​​more than [-] mu. The surrounding walls of the factory area have been completed, and the imposing gate of the factory area has also been completed. Security personnel are standing guard.

In the factory area, several main roads have been paved with asphalt for the first time. After the construction of the factory area is basically completed, these roads will be paved with asphalt again, and it will be a spacious and beautiful asphalt road.

The main construction of several factories has already started, each of which has a large area, because it needs to manufacture large parts of the aircraft, especially the aircraft assembly factory is the largest.

Because the engineering volume of this factory building is too large, the foundation construction is still in progress, and there is still some time before the main construction of the factory building.

Next to the huge factory area, next to this huge aircraft assembly plant will be the planned airport, which will have a huge parking apron and two wide runways with a length of more than 3500 meters, which is enough for large aircraft to take off. drop.

The land acquisition and demolition of the airport has been completed, and some bulldozers are leveling the ground, leveling the ground, and then the airport will be built.

Lin Feng stayed in Jianghai City for a day, mainly looking at the Leihuo aircraft factory under construction.In Deep Sea City, they stayed for several days.

Not only went to Leihuo Turbofan Engine Company, but also to Pangu Electronic Technology Company, and even went to see the Leihuo Technology Building under construction.

Such a skyscraper is a huge construction project, and the construction work of the underground part is also huge. So far, the construction of the underground part has not been completed.

Yun Quyang accompanied Lin Feng and introduced the progress of the building's construction.

"Boss, in another month or so, by the end of March, the underground part of our building will be completed. We will start the construction of the main part above the ground, and strive to build it to a height of 3 meters this year and complete the topping next year."

Lin Feng said in surprise, "The construction is progressing so fast, I thought it would take four or five years."

Yunqu Yangdao said, "It won't take so long, the construction will be completed in about three years, and then it can be put into use."

Lin Feng made a rough calculation in his mind. It is now February 1995, and it will be put into use in the first half of 997.

Well, this progress is good!

In fact, Lin Feng also has a little expectation in his heart, hoping that it will be completed sooner and he can work in this building sooner.

Such a landmark building, the tallest building in the world, would be a great place to work in it.

Thousands of miles away, Rolls-Royce.

In the aero engine overhaul workshop, several engines are being disassembled. Workers disassemble the engines that have been returned to the factory for overhaul at the time of use into parts, and then clean and inspect the parts.

Checking the problematic parts needs to be evaluated, whether to repair or replace with new parts, etc. Of course, there are also some parts that have reached the end of their life and need to be scrapped and replaced with new parts directly.

For example, turbine blades have service life requirements. The life of turbine blades in some aviation companies is only one overhaul cycle, that is, all turbine blades need to be replaced with new blades after each overhaul.

Many turbine blades of Rolls-Royce have two overhaul cycles. In the first overhaul cycle, the turbine blades are removed, cleaned, and inspected. If there is no problem, they are reinstalled and continue to be used. The second overhaul cycle is replaced with new turbine blades.

On the disassembly station, an aero engine was being disassembled. The workers were skilled in their movements, and the turbine part was disassembled in a short time.

The turbine section is then broken down into the turbine disk assembly, which is further broken down into turbine blades and turbine disks.

"Oh, God, that's the case again!"

After an engineer took one of the turbine blades and looked at it, he couldn't help but let out an exclamation.

This is a single-crystal high-temperature alloy turbine blade. In theory, it can be used for two overhaul cycles. However, after the first overhaul cycle was disassembled, a part of it was found to be faulty.

"What's the matter!"

"Let me take a look."

Several technicians from the side came over, and they didn't care that the blades hadn't been cleaned and were dirty, so they just held them in their hands and looked at them.

Most of the blades have some problems temporarily, but a few blades have obvious problems, and the surface ablation is more obvious. Such blades obviously cannot be used anymore, and they can no longer meet the service life of the next overhaul cycle.

(End of this chapter)