On the phone.

Xu Lilong reported: "Boss, you criticize me, I messed things up." ”

Li Tianfeng's heart sank whole, almost to the bottom, high-end and high-quality bearings have become one of the key factors in the successful development of this turbofan engine, if there is no qualified aviation bearing, this turbofan engine in terms of service life, reliability and other aspects will be greatly reduced.

Li Tianfeng said: "Mr. Xu, you can tell me the details of the matter." ”

Xu Lilong said: "Boss, here's how it ......"

Xu Lilong said in detail, at least ten minutes, after listening, Li Tianfeng's face was ugly, and he was slightly angry in his heart, doesn't he look down on people.

It turns out that people are self-sustaining domestic bearing manufacturers, national enterprises, and they simply do not believe that Tianfeng Technology Company has the technical strength to jointly develop high-quality aviation bearings with themselves. It can be said that the interlaced is like a mountain, perhaps in the development of aero engines, Tianfeng Technology is more bullish, but in the development of bearings, the other party believes that it must be stronger than Tianfeng Technology Company.

Putting down the phone, Li Tianfeng was silent for a while, not knowing what he was thinking in his heart, but judging from his face, he must be in an extremely bad mood.

Liu Wei next to her asked softly: "Boss, don't worry too much, maybe there will be a road before the car reaches the mountain, and it will definitely turn around." ”

Li Tianfeng sighed and said: "Mr. Liu, you don't know the importance of high-quality aviation bearings to a civil turbofan engine, perhaps, our turboshaft D can use slightly inferior quality domestic aviation bearings, and the bearings can be replaced when the engine is overhauled for 2000 hours or 3000 hours, but the civil turbofan engine is absolutely not." ”

Liu Wei said: "Boss, I know this, I have read a lot of aviation magazines, and I know that for civil aviation engines." High reliability and long life are very important for civilian turbofan engines. ”

Li Tianfeng said: "Yes, it is very important, let me think about this matter again, I must come up with a countermeasure to equip our turbofan engine with the best." The best aerospace bearings. ”

However, Li Tianfeng himself knew that it was difficult, very difficult to equip such aviation bearings, so Li Tianfeng frowned.

The bearing has a high technical content, and can even be used as an important standard to measure the scientific and technological and industrial strength of a country. Today's world's science and technology, industrial power, without exception, is a bearing research and development, manufacturing power. The reason why China is an industrial power rather than an industrial power is that the bearing industry is large but not strong. In 2010, the sales of China's bearing industry reached more than 100 billion yuan. The production is mainly low-end bearings, while high-end bearings mainly rely on imports.

The high-reliability and high-precision top-level bearings used for aero engines have become the "Mount Everest" that is difficult to climb in China's aero engine research and development.

Taking the main bearing of an aero engine as an example, the main bearing is one of the key components of an aero engine. Running under the conditions of high speed, high temperature and complex stress, the quality and performance of the main bearing directly affect the performance, life and reliability of the engine.

One of the key indicators of aero engines is high reliability. In order to ensure reliability, one of the prerequisites is to ensure that the bearings in the engine have a long life -- the life of the main bearing, the requirements of military aircraft aero engines are more than 3,000 hours, and the requirements of civil aircraft aero engines are even higher, reaching tens of thousands of hours.

The bearing working environment in aero engines can be described as "purgatory". Not only do they have to run at high speeds for long periods of time at tens of thousands or even tens of thousands of revolutions per minute, but they also have to withstand various forms of stress extrusion, friction and ultra-high temperatures.

Other than that. For general structural components, even if there is a slight crack, it can be guaranteed to be safe to use - this is professionally called damage tolerance, and the key transmission components such as the main bearing of the aero engine do not have a damage tolerance, and cracks and other forms of damage are never allowed during use. At present, the life of the main bearing of China's aero engine is limited, and the bearing has become a "short board" in the barrel principle.

Li Tianfeng fell into deep thought, and Liu Wei saw this. Gently retreated, and carefully closed the door of Li Tianfeng's office.

After thinking for a long time, Li Tianfeng knew that he only had two ways to go, or he would develop aviation bearings by himself. Either it is to seek an excellent bearing enterprise in China for technical cooperation and joint research and development.

Undoubtedly, the second path is the best. If Tianfeng Technology independently develops its own research and development, Li Tianfeng does not have so much energy, not to mention, a qiē still needs to start from scratch, such as the formation and training of scientific and technological teams, the construction of related plants, the procurement of related equipment, etc., which is very troublesome, and the cycle will be very long.

It will be much more convenient to seek an excellent bearing company for technical cooperation, because the other party has a ready-made professional technical team, ready-made plant and equipment and other hardware, and can immediately carry out relevant research.

Seeking technical cooperation, mainly Li Tianfeng has some technology in mind to manufacture high-end aviation bearings, with these technologies, coupled with a strong professional and technical research and development team, Li Tianfeng is confident that he can develop the high-quality aviation bearings he needs.

Li Tianfeng believes that seeking an excellent bearing company to jointly develop one of the key components required for aero engine bearing, this is a road with no other choice.

Although the aero engines used in civil aircraft can be imported from the West, the West will not sell us the high-end bearings configured in the aero engine, so as to prevent the aero engines being developed in China from being equipped with imported bearings and become its competitors.

Thinking about this, Li Tianfeng made a phone call: "Mr. Xu, you come back first, and we will discuss it again." ”

Xu Lilong was also relieved, and immediately said, "Boss, then we'll come back immediately." ”

Although high-end bearings have become the "short board" in the barrel principle, Tianfeng Technology Company has not stagnated in the development of this turboshaft engine, but has been carried out in an orderly manner as planned.

The overall scheme design has been completed before, and now, this engine has begun to enter the comprehensive detailed design stage, Li Tianfeng has to draw two or three design sketches almost every day, all of which are important parts of this engine, and the design sketches of key parts.

………

In the past few days, Li Tianfeng has been relatively busy.

Xu Lilong has come back, otherwise, it will be even busier, sometimes, Li Tianfeng secretly rejoices, Xu Lilong is really an excellent assistant, Li Tianfeng has a lot of energy for the research and development of this engine.

For this turbofan engine, Li Tianfeng can be said to have placed great hopes, Li Tianfeng himself is also full of energy, bearing things, and the domestic well-known bearing companies in contact, hoping to have a better result.

Li Tianfeng is enthusiastically finishing a design sketch, taking a sip of tea, taking a break, preparing to start work again, and then draw a second design sketch.

Coincidentally, the mobile phone rang at this time, and when he looked at the caller ID, Li Tianfeng smiled, Guo Tongde rarely called himself in person.

Li Tianfeng said with a smile: "Mayor Guo, you are really a rare guest, we haven't been together for a while." ”

Guo Tongde seemed to be very happy and in a super good mood, and said with a smile: "Mr. Li, I'm going to visit you tomorrow, I don't know if it's convenient." ”

Li Tianfeng was stunned for a moment, and immediately understood, this is Guo Tongde's polite statement, and he will definitely come to Tianfeng Technology Company tomorrow for research or inspection. At the same time, Li Tianfeng has also learned from Wei Jin that Guo Tongde has been promoted by one level, from executive vice mayor to mayor.

Among them, the reason for the promotion is likely to be related to Tianfeng Technology Company, Tianfeng Technology Company successfully developed the turboshaft D engine, and Guo Tongde also followed the light and was promoted to mayor.

Li Tianfeng said with a smile: "Mayor Guo, where is there any inconvenience, welcome leaders to come to our company for research." ”

Guo Tongde laughed and said: "Mr. Li, you're polite, how can there be any leader between us who doesn't lead, then it's decided, I'll come over at nine o'clock tomorrow morning." ”

Li Tianfeng said: "Okay, there is no problem. ”

The next day, Guo Tongde and his entourage arrived as scheduled.

Guo Tongde was accompanied by more than a dozen people, all of whom were government officials in Songzhou City, in addition, there were three accompanying reporters, and the two sides met and exchanged pleasantries.

Li Tianfeng was also polite, gave Guo Tongde enough face, personally accompanied Guo Tongde and his party, went to several workshops, and in addition, went to the assembly workshop.

In workshop No. 1.

Everyone walked into this workshop and saw such an environment, the ground was smooth and clean, and the figures could almost be illuminated, high-end machinery and equipment, and the workers were in uniform work clothes, full of energy.

"Mr. Li, this is your processing workshop, I can't believe it if I don't come to see it."

"Yes, such conditions, such an environment, I can be regarded as an eye-opener."

"Well, that's amazing, no wonder such an advanced aero engine was built."

“……”

Everyone was surprised, and then praised for a while, everyone had been to some machining companies before, and saw that the situation was full of oil and parts, where could Tianfeng Technology Company do this.

Walking into such a high-standard processing workshop, everyone is not surprised to see such a scene, many people are slightly shocked in their hearts, and they feel that they have opened their eyes.

Especially when I saw a high-precision and high-end imported equipment, many people saw that it was wonderful, and if they could take pictures, they would have taken out their cameras or mobile phones to take pictures.

In addition to being surprised and happy, a few people walked up to the imported equipment, looked at it carefully, and even touched the equipment gently, but they didn't know if they could understand it.

Seeing this, Li Tianfeng smiled slightly, and everyone in Tianfeng Technology glanced at each other, their hearts full of pride.

……

Today's fourth watch, the first watch is !! (To be continued......)