The headquarters of Tianfeng Technology Company, the assembly workshop.

The huge assembly workshop, everyone is busy, Tianfeng Technology Co., Ltd. has sufficient production tasks, and the assembly workshop also has to complete the assembly of several engines every day.

At present, the general assembly workshop of the company's headquarters, the absolutely specialized turbofan engine assembly workshop, and the former turboshaft engine assembly, such as turboshaft D and turboshaft E engines, have all been relocated to the final assembly workshop of Qingshi manufacturing base.

The assembly workshop of Qingshi base, specializing in the final assembly of turboshaft engines, is a little different from here.

Because the final assembly of turboshaft engines was relocated, now, it seems to be more specialized, and the layout of the workshop has been slightly adjusted, which looks more neat and orderly, and as far as the eye can see, it is all the final assembly of turbofan engines.

The first prototype of the turbofan 20 engine was assembled by New Year's Day, and the final assembly of the engine is now being carried out on a final assembly bench in the final assembly area.

The combustion chamber has been assembled, and at this moment, workers are assembling the high-pressure compressor, and a worker, holding a dial gauge, is checking the runout of the rotor of the high-pressure compressor.

The final assembly of the engine, there are a series of technical requirements, not to be sloppy, as we all know, this is the first prototype of the turbofan 20 engine, which is more careful and serious.

"Old Yang, how is the beating?"

"Lao Zhang, the design requires two wires to beat, and the inspection is one and a half, which is basically qualified."

"It's not enough to do it at all, this is the first prototype, we have to keep improving, I think the beating has to be within a little."

"Yes, I'm in favor of it." The other two assembly companies next to him agreed.

So, everyone made another assembly adjustment. After careful assembly, check again, the runout reaches within a trace, and the dial indicator checks, the pointer jumps very little.

If it is a turbofan 16 or turbofan 17 engine, such a batch model. Four people work together, and in one day's work, they can basically complete the final assembly of an engine.

This is a turbofan 20 engine, which is naturally much slower to assemble, and the final assembly of the combustion chamber and compressor part is completed on the first day, and the final assembly of the fan, turbine and tail nozzle part is completed on the second day.

On the third day of final assembly, we began to assemble the accessories and control parts of the engine. According to the requirements of the assembly process, we are very careful.

"Lao Yang, look at these accessories, they are all domestic goods, and they are no longer all foreign yards like before."

"Lao Zhang, the turbofan 20 engine has been completely localized, the accessory part, the control system part. All the spare parts are all domestic goods, and naturally there is no such foreign yard. ”

"Old Yang. I just don't know, what is the quality of domestic accessories? ”

Coincidentally, a supervising technician came over, obviously planning to take a look at the assembly of this engine, and when he heard everyone's words, he immediately said: "Don't worry about this." These domestic accessories are all strictly tested and strictly controlled by quality, and there will be no problems. ”

"Shen Gong, you're here again."

The surname of this supervising technician is Shen, and everyone is called Shen Gong. One of the process technicians responsible for the final assembly of the turbofan 20 engine.

Shen Gong said: "This is the first prototype of our turbofan 20 engine, I dare not take it lightly, and you must also strictly follow the process requirements to achieve the best assembly state." ”

"That's for sure, it's going to be in the best possible condition."

While assembling, everyone assured that after Shen Gong looked at it on the side, he was very satisfied that the assembly quality of this engine was good.

Assembler Lao Yang said: "Shen Gong, it's strange these days, Mr. Li didn't appear, generally speaking, every new engine is assembled for the first time, Li always has to go to the assembly site." ”

Shen Gong said with a smile: "Mr. Li is very concerned about the assembly of the first prototype of the turbofan 20 engine, but Mr. Li has important things to do in the past few days, and he has no time to come here to take a look." ”

Hearing this, everyone was curious, and Lao Yang even asked: "Shen Gong, what is the important thing about Mr. Li, which is more important than the final assembly of the first prototype of the turbofan 20 engine?" ”

Shen Gong said: "I just heard that the construction of our high-altitude platform has entered the final stage, and Mr. Li has almost been on the high-altitude platform side in the past few days. ”

"Oh, I see."

Everyone naturally understands the importance of the high-altitude platform, looking at the country, there is only one high-altitude platform, the high-altitude platform of Tianfeng Technology Company, is the second high-altitude simulation test platform in China, and it is far more advanced than the first high-altitude platform in China, otherwise, it will not take so long.

"Shen Gong, is the construction of our high-altitude platform almost complete?"

Shen Gong said: "I don't know the specifics, but it should be soon, otherwise, Mr. Li would not have stayed on the test bench for a few days." ”

In the past few days, Li Tianfeng is indeed here in the high-altitude platform, the construction of the high-altitude platform has been basically completed, these days, it is the internal review and acceptance of Tianfeng Technology Company, such an acceptance review, Li Tianfeng must definitely participate.

The construction of the high-altitude simulation test bench was almost completed under the guidance of Li Tianfeng, and a series of key technical problems were basically solved by Li Tianfeng.

Internal acceptance review, which lasted a few days, has now been basically completed, there are some problems that need to be rectified, however, it is not a key problem, are some small problems, Li Tianfeng plan, the year before the completion of rectification, after the Lunar New Year, again internal review, and then, but also to invite a group of domestic experts to come and take a look, please also review.

Li Tianfeng is not unconfident in his own technology, and invites these experts to come over, mainly to listen to everyone's opinions, standing from different angles, maybe he can find some new problems, or can put forward some better opinions and suggestions.

While assembling this turbofan 20 engine, everyone was chatting about the high-altitude platform and Li Tianfeng, and suddenly, Shen Gong, who was talking, immediately stopped and looked into the distance.

Li Tianfeng, Sun Xiaoping, Qiu Wen'an, Zeng Qinghai, and the director of the main and deputy workshops of the assembly workshop, a large group of people are walking here.

The general assembly of the first prototype of the turbofan 20 engine, Li Tianfeng naturally wants to take a look, this is what he must pay attention to, a few days ago, he was too busy to come and take a look, as soon as the internal review and acceptance of the high-altitude platform was completed, he came over immediately.

From a distance, seeing that the final assembly of the turbofan 20 engine was basically completed, Li Tianfeng was slightly excited, and couldn't help but speed up his pace, everyone followed one after another, followed by Li Tianfeng, and a large group of people came to this turbofan 20 engine.

At this moment, the assembly of the turbofan 20 engine has entered the final stage, the whole engine has been decent, and these workers are doing some finishing assembly work.

The technical director of the assembly workshop said: "Mr. Li, the first prototype will be assembled today. ”

Li Tianfeng knew at a glance that it would not take long for this engine to complete all the assembly work, Li Tianfeng nodded and looked at it with great interest.

Turbofan 20 engine, military small channel than turbofan engine, because it is a small channel ratio, so the fan part is much smaller than turbofan 16 and turbofan 17 engines, the whole engine appears more slender, like a slender cylindrical cylinder.

But this is definitely not a simple cylindrical cylinder, the structure inside is complex, and there are a large number of accessories, pipelines, lines and so on on the outer surface.

Logically speaking, with so many things on the outer surface, it should look very messy and affect the aesthetics, but the turbofan 20 engine gives the impression of the opposite.

The whole engine is very beautiful and exquisite, even those pipes and wiring, are also neat and tidy, without the slightest sense of chaos, in addition, the overall layout of the engine, including the appearance, is obviously carefully designed.

The appearance design of each engine of Tianfeng Technology Company is very particular, and the turbofan 20 engine is naturally the same, which fully adheres to this tradition and concept.

Li Tianfeng watched with great interest, the turbofan 20 engine, from the design, to the trial production of parts, and then to the final assembly of the first prototype, and now it has finally entered the harvest moment, Li Tianfeng is naturally very happy in his heart.

The rest of Tianfeng Technology Company, naturally, is the same, everyone is relished and interested, surrounding this engine, as if this is not an aero engine, but a rare treasure.

After a long time.

Li Tianfeng said happily: "What do you think, how about our prototype?" ”

Immediately, someone said: "Boss, the engine is very beautiful, completely beyond my imagination." ”

Another human: "Yes, I didn't think about it, the turbofan 20 engine has excellent performance, and its appearance design is so good, it really has an amazing feeling." ”

Everyone, you say a word, I say a word, all words of praise, to say from the heart, Li Tianfeng is also very satisfied with the turbofan 20 engine.

Although this is only its first small-channel ratio military turbofan engine, the engine definitely surpasses the J-10's active Russian-made engine, whether it is performance, reliability, or appearance.

The situation of the engine, Li Tianfeng is very satisfied, next, Li Tianfeng has to take a look at the assembly quality of the engine, the engine assembly has been basically completed, how to see the assembly of the engine?

There is no problem with this, because there is an engine resume, each engine has its own resume, in the resume, not only the batch number of each part of the engine assembly is clear, what is the size of the assembly, but also the record is very detailed.

In addition, if the engine completes the test run, all the test conditions will also be recorded in detail on the engine resume, which is the engine file.

…………

Today's three watches, the first one is sent! (To be continued......)