Li Tianfeng had excellent eyesight, and when he saw the convoy on Songzhou Avenue in the distance, Li Tianfeng immediately said loudly: "Everyone stand up, the expert group is here!" ”

Hearing this, everyone's hearts sank, and the people who were talking in a low voice just now immediately stopped talking, and everyone stood up straight.

The convoy drove straight over, and the front of Tianfeng Technology Company was very spacious, not to mention a few taels of commercial vehicles, even a dozen cars did not seem crowded.

The car stopped one by one, the door opened, and the experts began to get out of the car, Li Tianfeng's eyes were sharp, and when he saw Wu Lao who got out of the car, he immediately walked over quickly, and said enthusiastically and loudly: "Wu Lao, you came here in person, great, our engine needs an old expert like you to check." ”

Wu Lao said: "Mr. Li, I have long wanted to take a look at your turbofan engine, this time I can take a good look at it, the fourth generation turbofan engine, you are amazing!" ”

After a few words of greeting with Wu Lao, Li Tianfeng politely introduced several senior executives of his company to Wu Lao one by one, and everyone shook hands politely one by one.

When Li Tianfeng, Zhang Haiping, and Zhang Hongzu shook hands, because they were old acquaintances, everyone looked at each other and smiled slightly, understanding each other, and there was no need to be too polite.

When the experts saw Tianfeng Company, especially standing in this position, seeing the magnificent gate, looking inside, there were huge modern high-standard factory buildings, and many people couldn't help but nod.

Li Tianfeng said: "Elder Wu, please inside, let's take a rest first, and then start the official work." ”

Wu Lao waved his hand and said: "Rest is free, we will enter the working state immediately, and take a look at your design materials first." ”

Li Tianfeng nodded, knowing that an older generation of experts like Wu Lao would definitely enter the working state immediately. Li Tianfeng also made relevant preparations early.

So, Li Tianfeng took the experts into the technical center and went directly to the Aero Engine Research Institute, and the relevant materials had already been prepared, and the relevant conference rooms had already been prepared.

In the conference room, Li Tianfeng made an overall introduction to the turbofan engine of the "TFWS001" type. About performance, parameters, some of the main designs, the main engine structure and much more.

After listening to Li Tianfeng's introduction for about half an hour, many experts nodded and talked in low voices.

After some conversation, a small number of experts asked some technical questions. As the chief designer of this engine, Sun Xiaoping answered them one by one.

Wu Lao said: "Xiao Sun, young and promising, led the design of the fourth-generation turbofan engine in his forties, not bad, not bad." ”

Receiving the praise of Wu Lao, an old-timer, Sun Xiaoping was a little embarrassed, and quietly glanced at Li Tianfeng. This engine was designed under the guidance of Li Tianfeng, and the really young and promising one should be Li Tianfeng.

Sun Xiaoping said modestly: "Old Wu." You've won a prize. ”

Next to it, there is an expert who is looking at the test record and test report of this engine, a large book of these thick materials, after reading a few pages, the expert obviously frowned, and quickly flipped through it. After looking at it.

The expert said: "Mr. Sun, your first verification test, 30-hour long-lasting test, 150-hour long-lasting test, are all one-time through. Well, that's probably going to work. ”

Hearing this, several experts nodded, agreeing very much in their hearts, in everyone's opinion, this is basically impossible, these experts are the same as the expert who asked the question just now, and they all looked at Sun Xiaoping.

was questioned, Sun Xiaoping was not unhappy at all, on the contrary, he was proud and happy in his heart, and glanced at Li Tianfeng, Li Tianfeng also smiled happily, maybe others can't, but his own engine is definitely okay.

Sun Xiaoping said confidently: "The first verification test of our engine, 30 hours of long-lasting test, 150 hours of long-term test, are all one-time through, there is no doubt about it." ”

Then, Sun Xiaoping introduced the various test runs in detail, and Wu Lao was also very interested in taking this thick test record and looking at it seriously in person.

After looking at it, Wu Lao nodded, according to a professional point of view, this test record is absolutely true, there is no trace of fraud, and on this issue, no one generally dares to cheat. The rigor of aero engine development is the most basic professional ethics.

Wu Lao said: "You are amazing, it is really a one-time test run, and the number of each test run is very good." ”

Wu Lao's words were basically finalized, and the experts next to him were interested, and this thick test record was circulated by everyone one by one.

The design finalization review, the first two days are basically the review of the data, including the design data, process data, and also read a lot of records, such as test records, test and verification records of each part, etc.

These materials are almost over, and the experts began to go to the processing site to see the processing of parts, the hardware situation of Tianfeng Technology Company, the management situation and so on.

And Li Tianfeng, Wu Lao and a group of more than a dozen people once again came to the assembly workshop. Yesterday, Wu Lao and others came to see the engine that completed the 150-hour long-lasting test run, and the engine that completed the test run was not disassembled as required, but has been waiting for the expert group.

Yesterday, everyone looked at this engine, and after watching the test run, this engine can basically be as good as new, still beautiful and clean, Wu Lao and others can't help but praise again.

Today, the engine began to decompose, Li Tianfeng took Wu Lao and others over, the engine has completed the decomposition work, the parts have not been cleaned for the time being, the experts want to see the parts bend after the completion of the test run of the "original condition", after the engine is decomposed, the parts remain the same.

A group of more than a dozen people walked to the side of the inspection platform full of parts, and immediately looked at the situation of these parts after the commissioning.

Picking up the parts one by one, the experts looked very carefully, and many experts were amazed while looking at them, obviously seeing the incredible place.

"If you don't see it for yourself, you can't imagine that this is actually a part that has been tested for 150 hours!"

"yes, this part looks exactly like new, except for a little dirty."

"Well, yes, yes!"

While watching, the experts nodded and praised, and even exchanged ideas, everyone's evaluation was very high, and when it came to Li Tianfeng's ears, Li Tianfeng felt very useful and in a very good mood.

Wu Lao picked up a turbine blade, wore reading glasses, looked very carefully, after looking at it, Wu Lao asked: "Mr. Li, this blade is good, it is worthy of the third generation of single crystal blades, I estimate that the service life of such a blade can reach at least 6,000 hours." ”

Six thousand hours!

Hearing Wu's old words, these turbine blades immediately became a hot commodity, and the experts were full of interest and looked at them carefully.

The third generation of monocrystalline blades!

Ultra-cold construction!

Thermal barrier coating!

On the turbine blades, an advanced design and an advanced process made the eyes of the experts shine, and they also looked at Li Tianfeng and others with admiration.

The service life of the turbine blades of domestic aero engines is generally two or three thousand hours, while the turbine blades of Tianfeng Technology Company can reach six thousand hours.

Li Tianfeng nodded, such a turbine blade can have a service life of at least 6,000 hours, which is a turbofan engine positioned in a civil airliner, and its service life is naturally relatively long, reaching or exceeding the international level.

Long service life, the economy of the engine is better, about the economy of the engine, Li Tianfeng has been fully considered in the design, the design service life of the turbine blade is 6,000 hours, and later, after full verification and testing, the service life may be extended.

Many experts look at these blades differently, eager to see through these blades, and thoroughly master the design and manufacturing technology of these turbine blades.

Seeing this, Li Tianfeng smiled.

Everyone was looking at the turbine blades, and suddenly, an exclamation sounded, and everyone looked over, and it turned out that there was an expert who was holding a main bearing, apparently after looking at it for a long time, the more he looked at it, the more shocked he became, and he couldn't help but exclaim.

This expert, Zhang Haiping and Zhang Hongzu both know each other, a well-known domestic aviation bearing expert, surnamed Xu, I didn't expect that the nearly sixty-year-old Xu expert actually exclaimed.

Zhang Haiping smiled and said, "Old Xu, what's wrong?" ”

The shock on Expert Xu's face was far from subsiding, in addition to the shock, there was also excitement on his face, and this facial expression could be described as very exciting.

Expert Xu took the main bearing and said: "The quality of this bearing is surprisingly good, after 150 hours of testing, it is completely like new, and I see the slightest wear and tear, Mr. Li, where did you purchase it?" ”

Li Tianfeng smiled and said: "Expert Xu, this is a bearing produced by a bearing company in our country. ”

"What! Domestic bearings! It is impossible to produce it in a domestic aviation bearing factory! Expert Xu looked incredulous.

Among these experts, there are a few people who understand bearings, can't help but be very interested in the past, each picked up a bearing and looked at it, after looking at it, one of the experts said: "This is our domestic bearing, unimaginable!" It's unbelievable! ”

Another expert also said: "Such high-quality aviation bearings are estimated to be difficult to produce by the world's giant companies in the bearing industry!" ”

……………

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