Holding the process data after signing and compiling, proofreading and reviewing, Li Tianfeng stepped up to the third floor, the offices of the representatives of the navy and the army and air force are all on the third floor, lined up, the offices are very spacious, on the third floor, in addition to the military representative office, there is also the engineering and technology office.

Navy Representative Room.

Chen Dong, the representative of the Navy in charge of the precision machining center, was sitting on his wide and comfortable office sofa chair with a proud face crossed Erlang's legs.

Li Tianfeng, who was knocking on the door and walked in, frowned after seeing Huang Xuewen, and thought in his heart, how can he meet this guy anywhere, although he felt slightly uncomfortable, Li Tianfeng's demeanor was calm and calm, and he walked in.

"Hello Representative Chen, I have a craft document here that I need you to sign." Li Tianfeng said.

Chen Dong almost didn't look at Li Tianfeng, and he didn't look at the process materials carefully, so he signed his name with a brush, and then waved his hand a little impatiently, signaling Li Tianfeng to go out quickly.

Seeing this, Huang Xuewen smiled happily, as if he was laughing at Li Tianfeng.

Seeing Huang Xuewen like this, Li Tianfeng also returned the favor and said: "Deputy Director Huang, I didn't fall lightly last time!" I didn't think that Deputy Director Huang could be like a young man, and he would be alive immediately after a fall. ”

"You!"

Huang Xuewen was extremely angry in his heart, the last time he made a bet with Li Tianfeng, he was not only deflated, but also lost very badly, and he escaped by playing tricks, but he didn't expect Li Tianfeng to talk about that incident.

Seeing that Huang Xuewen's face turned red with anger, Li Tianfeng smiled happily and walked out of Chen Dong's office triumphantly. When Chen Dong saw Huang Xuewen's expression, he glanced at Huang Xueren suspiciously, which made Huang Xuewen eager to find a crack in the ground to get into.

"Representative Chen, I have to leave in advance." Huang Xuewen followed closely and also left Chen Dong's office.

Seeing the happiness and pride on Li Tianfeng's face in front of him, Huang Xueren was angry again, but he soon remembered that he crossed out Li Tianfeng's name for participating in the competition.

……

"Xiao Li, come here."

Not long after returning to his office, he was still thinking about Huang Xuewen's deflated appearance just now, and the technical director Cheng Gang was waving at the door.

"Director Cheng, what's the matter?"

"Let's go, come with me to the vortex C failure analysis meeting." Cheng Gangdao, and then added, "The first engine of turboshaft C has been assembled in the final assembly workshop, but a series of technical and quality problems have been exposed, and Mr. Yang personally held a failure analysis meeting." ”

The turboshaft C engine is not only a National Day gift model, but also a power for China's latest armed helicopter, representing the most advanced and latest turboshaft C engine in China, which is more than a level more advanced than the turboshaft B engine, and the technical content is also higher.

As a new model with high technical content, there are naturally a lot of technical quality problems, and many technical processing problems have been exposed in the parts processing stage, and Li Tianfeng has personally solved a lot, such as the processing of some key parts of the compressor and turbine part, etc., this time, a lot of technical problems have been exposed in the assembly process.

Li Tianfeng's heart is awe-inspiring, although the technical level of the E factory is known as the first-class in China, but it can only be regarded as a second-rate or even third-rate in the world.

With Cheng Gang and Li Tianfeng walking, while thinking about what technical problems arose in the assembly process, it was actually Chief Engineer Yang Xianfeng who personally convened the meeting.

Walking into the office building of the headquarters of the group company, Cheng Gang's expression was obviously a little stricter, this is the highest authority of the entire E factory, and all the heads and brains are working here.

went up to the third floor and walked into the conference room, Li Tianfeng's expression was calm and calm, his eyes swept slightly, this is a medium-sized conference room, about dozens of people can sit dozens of people, the projector is ready, and several staff members are pouring tea for everyone.

There are dozens of people sitting in the conference room, all of whom are the technical leaders of the workshops under the E factory, or some technical experts and backbones of the E factory, and there are obviously more people from the assembly workshop, the workshop director Meng Qiang led the team, the workshop technical director Cao Wei, and several subordinate technical backbones are here, Meng Qiang is sitting there with his head down, not smiling, it seems that there is a problem in the assembly process.

In addition to the people in the E factory, there are also many people from the design institute, including the chief model engineer of the turboshaft C engine, as well as several subordinate design directors, design directors and so on.

Li Tianfeng followed Cheng Gang and hurriedly found a relatively close position to sit down, looking at the time, Li Tianfeng thought in his heart, the meeting should also start.

Sure enough, within a few minutes, Yang Xianfeng, deputy general manager and chief engineer of Plant E, walked in with a stern face, followed by several deputy chief engineers of Plant E, and among these deputy chief engineers was Liu Qingshan.

"Mr. Sun, come and sit here."

Seeing Sun Xiaoping, the chief model of the turboshaft C engine of the design institute, Yang Xianfeng hurriedly greeted. The design institute and factory E are at the same level, and they are next door to factory E, and the two units are brothers, the design institute is responsible for the design of some engines, and factory E is responsible for the production and manufacturing of engines.

In terms of level, the chief engineer of the model is one level lower than Yang Xianfeng, and when he saw Yang Xianfeng greeting himself, Sun Xiaoping was polite and sat down next to Yang Xianfeng.

Li Tianfeng sat there with a calm face, but secretly thought in his heart, this is basically equivalent to a grand meeting, a grand meeting of the entire E factory technical system, and the people sitting here are either leaders or experts, and the most disadvantaged is also the chief engineer.

Thinking of this, Li Tianfeng looked around the entire conference room again, and as he thought, the top technical talents of the entire E factory were basically all gathered here, led by Yang Xianfeng, Liu Qingshan and others, and the general level was very high.

And think about himself again, Li Tianfeng thought in his heart, he should be the lowest level in the entire conference room, and the time to enter the factory is also the shortest, under normal circumstances, a technician like himself is not qualified to enter here at all, but he did not expect that he can now sit here and sit on an equal footing with most engineers and experts.

The meeting was presided over by Liu Qingshan, deputy chief engineer, seeing that the people attending the meeting were basically there, Liu Qingshan said in a deep voice: "Now to start the meeting, first of all, please ask the assembly workshop to introduce a series of problems in the assembly process of the turboshaft C engine. ”

In fact, most of the people here know some of the main problems, and with the introduction of the general workshop, everyone knows it in their hearts and knows it more clearly.

The assembly workshop is very well prepared, prepared a large number of pictures, and also made a PPT, while talking and showing these pictures, even if I didn't know before, now I know it more clearly after listening to it, Li Tianfeng is the same, after listening to the detailed introduction of the assembly workshop, I also know it clearly in my heart.

These problems are big and small, but Li Tianfeng believes that the most difficult to solve should be the turbine stagnation problem and the runout problem of combustion chamber assembly, these two problems are not solved, the performance of the entire engine will be greatly affected, and it is even impossible to assemble it at all.

Liu Qingshan has rich experience, as the host of the meeting, began to solve the problems one by one, everyone is also brainstorming, making suggestions to solve the problem, and some problems are summarized one by one to solve the technical solutions.

As the supreme leader of the highest place and the chief engineer of the entire E factory, Yang Xianfeng's face gradually calmed down at this time, probably looking at these problems one by one and coming up with effective solutions.

Liu Qingshan also noticed Yang Xianfeng's face, his heart relaxed slightly, and continued: "Now that everyone has started to discuss the problem of turbine rotor stuckness, everyone can speak boldly, and it doesn't matter if you are wrong. ”

In this way, everyone spoke enthusiastically, and expressed their views and opinions one by one.

Turbine rotor jamming may seem like a simple problem, but it is actually very complex and may involve many other parts of the turbine part, not just the rotor.

For aero engines, the turbine rotor is a power output component, which is very critical, with high precision requirements, and basically uses difficult-to-machine superalloy materials, and the working temperature is also very high, and under high temperature conditions, the turbine rotor also rotates at high speed, outputting 1,200 watts of power, which is not simple.

Turboshaft C has a diameter of less than 200 mm, and the basic physics of the turbine is that forces are interacting, which means that such a small turbine disc in turn has to withstand several tons of force at all times. Figuratively speaking, everyone should have seen the performance of a strong man pushing a car with a steel gun in his throat, and the turboshaft C turbine is probably the same, but the strong man pushes the car slowly, and the turboshaft C turbine drives the rotor of the helicopter to rotate at high speed, and it also has to withstand the extremely harsh high temperature and high pressure test.

The turbine rotor is stuck, that is, the turbine rotor does not rotate smoothly, let alone tens of thousands of revolutions per minute.

Everyone, you say a word, I say a word, talked for a long time, and gradually calmed down, Cheng Gang also expressed his own opinions, seeing where Li Tianfeng has been sitting, Cheng Gang said with a smile: "Xiao Li, speak freely, this meeting is very open-minded, you can also talk about your own opinions!" ”

"Really, can I also say my own opinions and opinions?"

"Yes, don't worry, just say it boldly."

Hearing this, Li Tianfeng nodded, seeing that everyone was basically finished, the entire conference room had quieted down, and Liu Qingshan, who was presiding over the meeting, was looking around the conference room, as if looking for a look, to see who was going to speak.

So, Li Tianfeng stood up, his face was calm, his demeanor was calm and calm, and he said loudly: "Leaders, colleagues, I will also express my own opinions." ”

Suddenly, everyone's eyes looked over, and many people thought in their hearts, who is this, so good-faced and young!

……

Thank you for the tips from the readers of "Giant Foot"!

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