Seeing Lao Zhao, the squad leader of the dynamic balance squad, say this, Lao Yan gradually looked serious and did not leave. He watched the dynamic balance test of the fan rotor in person.

Everything is ready, including the correcting of the fan rotor, the dynamic balancer starts to start, the fan rotor begins to rotate gradually, and the speed gradually increases. From the LCD screen of the dynamic balancer, it can be seen that the speed of the fan rotor is increasing, reaching the set speed of 200 rpm.

"Wow, this is really windy!"

One of the relatively young dynamic balance experimenters shouted in surprise. During the engine's work, the fan rotor will rotate at a high speed, reaching tens of thousands of revolutions, generating huge thrust. Now at a speed of only 200 revolutions, a large amount of air flow has been generated and almost blown.

A relatively older dynamic balance experimenter next to him smiled, "This is a fan rotor, which uses titanium alloy wide-string fan blades. I heard that the aerodynamic performance is excellent and can naturally produce strong winds."

The young dynamic balance experimenter also smiled, looked at the rotating fan rotor with great interest, and then looked at the LCD display on the dynamic balance machine. At this moment, as the fan rotor rotates smoothly, the dynamic imbalance measurement has come out, the data is displayed as 0.56, and the qualification requirement must be less than 0.50g/m.

Squad Leader Zhao was also paying attention to dynamic balance. Seeing this data, he immediately said: "Lao Yan, dynamic balance is not qualified, and there is a slight error."

When Squad Leader Yan saw that he was really unqualified, he couldn't help but shake his head gently. It seemed that the hope of passing the test at one time was ruined.

Squad Leader Yan said: "Old Zhao, mark the unbalanced position for me, we will reassemble it again, and then move the balance test."

Squad Leader Zhao nodded, and waited for the balancer to stop, and the fan rotor stopped rotating. Squad Leader Zhao held a blue marking pen to mark the unbalanced position.

The fan rotor was pushing from the dynamic balance zone to the fan rotor assembly zone. Squad leader Yan frowned and looked at the fan rotor for a long time, and was about to ask the technician to come down to deal with it. Li Tianfeng and Zeng Qinghai happened to come to the fan rotor assembly zone.

Seeing the marks drawn by the blue marking pen on the fan rotor, Li Tianfeng asked: "Master Yan, is the dynamic balance unqualified?"

Squad Leader Yan said: "Mr. Li, there is a little bit of a difference in dynamic balance."

Li Tianfeng looked at the fan rotor seriously. Then he said, "The No. 12 blade is a little heavier. Choose a blade with a weight of about two grams and replace it. There should be no problem."

Squad Leader Yan was delighted and knew that Li Tianfeng had a deep technical attainment. Since that was the case, it was definitely true. So Squad Leader Yan personally replaced the No. 12 blade and chose a blade with a weight of about two grams lighter and replaced it.

He moved the balance again, and it was indeed within the qualified range. Squad Leader Yan said happily: "Mr. Li, you are so awesome."

Li Tianfeng smiled and said, "It's not that I'm awesome, but that our parts are well processed. Otherwise, the dynamic imbalance measurement will definitely be more than a slight difference like this. If the difference is too far, it may not be possible to replace a certain blade."

This is the truth. If the difference is too far, the entire fan blades need to be re-weighted and pushed back and started over again, and the workload will be very large.

Just by replacing one blade, the dynamic balance will be completely qualified, which means that the fan rotor fully meets the quality requirements and can be assembled. Squad Leader Yan was happy for a while.

Of course, a blade has just been replaced. The relevant procedures must be completed, and the relevant records must also be noted that there are almost strict requirements for the research and development and manufacturing of aircraft engines. If the relevant procedures are not completed, the replacement of blades will definitely not be allowed. These relevant procedures must be recorded (such as temporary process regulations, unqualified records, assembly records, etc.) must be entered into the engine resume book.

The first engine of the "tfws001" type turbofan engine has been fully integrated into the assembly. Li Tianfeng is naturally very concerned about it. He also pays attention to it. He has been staying in the assembly workshop for the past two days.

The assembly of each component, such as fan rotor, compressed gas rotor, combustion chamber, turbine components, etc., took about two or three days.

It took so long, on the one hand, because this is a new engine, many people have come into contact with it for the first time. In addition, everyone thinks it is the first engine and must not make any mistakes. Adhering to the principle of slow work and meticulous work, we strive for excellence and strictly require quality.

After watching these two or three days, Li Tianfeng knew it and was very satisfied. The assembly quality of each component seemed very good in Li Tianfeng. Especially in the combustion chamber assembly area, Li Tianfeng was very pleased to see the professionalism of several assembly workers.

Things have to start the day before yesterday.

Li Tianfeng looked at the fan assembly and compressor assembly, and after watching the turbine assembly, he walked to the combustion chamber assembly area with Zeng Qinghai and saw several workers assembling the first combustion chamber.

Several assembly workers have installed the flame drum and are using a dial gauge to make the flame drum beat. Li Tianfeng knows that after the flame drum is installed on the combustion machine receiver, the flame drum reference inner circle and the combustion chamber receiver have a jumping requirement, and the design requirement is 5 wires.

Li Tianfeng is not only very clear and familiar with these technical requirements, but also has a very good vision. It is obvious that the result of these workers playing watches is that 4-wire jumping. According to principles, 4-wire jumping belongs to the qualified range.

However, what surprised Li Tianfeng was that these assembly workers were not satisfied with the result of 4 wires, but stopped metering, adjusted the assembly, and then checked the meter again, and showed that the jump was 1 and a half wire.

Seeing this, Li Tianfeng was very pleased. After several years of strict technical management, the workers finally remembered this spirit of striving for excellence and perfection. If this spirit forms a corporate culture again and penetrates into the hearts of every worker, it would be amazing.

With such a spirit, why worry about not being able to develop the world's top aviation engine!

Design is very important, and the quality of the parts processing and assembly quality of the engine are also very important. Workers have this spirit, so there is no need to think that the quality of the parts and the assembled engines must be first-class.

...

"tfws001" type turbofan engine assembly area.

On one of the main rotary trays, the first engine finally entered the final assembly. Obviously, because it was the first engine, the final assembly workshop used elite soldiers and strong generals. Several assembly workers were skilled and cooperated tacitly, and there were two technicians next to them to guide them.

The combustion chamber receiver is first equipped with a assembly mount. After the workers correct the central axis reference and the end surface reference of the combustion chamber, they install the compressor into the combustion chamber, and position it through a precision positioning hole between them.

Installing the compressor part will further provide a strict inspection. The technical requirements such as coaxiality and jumping will not be missed. If they fail, adjustments will be made.

"A little bit here, yes, lighter!"

One worker looked at the dial meter, and another worker gently tapped the compressor receiver with a rubber hammer to adjust the assembly to ensure the assembly technical requirements, such as coaxiality with the combustion receiver, the blowing of the compressor itself, etc.

On the first day, the combustion chamber, compressor and fan parts were assembled, including the fan receiver outside the fan rotor.

The next day, the flip was 180 degrees, and the turbine, tail spray and other components began to be assembled. On the third day, the accessories began to be installed, including control parts, various electronic components, various lines and pipelines, etc.

The first "tfws001" type turbofan engine took almost three days to assemble the components, and the engine assembly took three days to complete the final assembly.

Such slow speed, on the one hand, ensures high-quality assembly quality, and on the other hand, considering that some assembly workers are not familiar with the first engine, they have specially slowed down the assembly progress.

When the engine assembly is completed, Li Tianfeng naturally takes a look at it almost every day. When the engine is completed, Li Tianfeng is naturally in the assembly area of ​​the assembly workshop.

Seeing that the engine had finally completed the assembly and the engine was right in front of him, Li Tianfeng was very happy. Of course, there were still many people around the engine at this time.

The successful completion of the first engine is definitely a thing worth celebrating for the entire Tianfeng Technology Company, and it is definitely a milestone in the development of the "tfws001" turbofan engine.

"Boss, the engine has been successfully assembled, I'm so happy to see it!"

"The engine is so beautiful. Look at this fan and this compressor, the appearance is so beautiful."

“…”

Everyone surrounded this engine with joy and a very happy face. Li Tianfeng was also in a good mood. After looking at the engine, he said: "Organize a pre-test review, and then organize the test run of our first engine."

"Boss, I'll be responsible for the review before the test run." Sun Xiaoping volunteered.

Li Tianfeng nodded in agreement and said, "After the first verification and test run is completed, we will also apply for the design and finalization of this engine."

Xu Lilong took the initiative and said: "Boss, I will be responsible for applying for design and finalization."

Li Tianfeng knew that Xu Lilong had an acquaintance at the National Defense Science and Technology Bureau, so he nodded, "If you apply for design and finalization, then let Mr. Xu take charge of it."

Liu Wei looked at the engine and was very happy, "Boss, can I take a photo with this engine?"

After thinking about it, Li Tianfeng said happily: "Come on, everyone comes together, let's take a family photo."

So everyone came over, and the engine was in the middle, and everyone was like stars urging the moon. Li Tianfeng stood next to the big engine and took a group photo. The background of the photo was the modern assembly workshop.

In the digital camera, Li Tianfeng looked at the photo with satisfaction, and then said to Liu Wei: "Mr. Liu, each person sends one copy of this photo.

This is a photo of the entire R&D and manufacturing team of Tianfeng Technology Company. There are not only senior managers, but also major designers and craftsmen, as well as Liu Wei, as well as the chief and deputy director of the assembly workshop.

…………

The third update will be continued today, and the first update will be given! (To be continued.)

(The source of this book is clear, no pop-up windows, and the update speed is fast)
Chapter completed!