The subtle changes in the mental outlook of the company's employees, Li Tianfeng saw it in his eyes and was happy in his heart.

Today, Li Tianfeng just came back from the second phase of the construction site, there to see a circle, Li Tianfeng is more satisfied, worthy of the design of the famous domestic architectural design team, very scientific and reasonable, but also very beautiful and generous, at present, there are a good factory building construction nearing the end.

Back in the office.

Li Tianfeng took a sip of tea comfortably, and then picked up a book of process regulations on his desk and looked at it seriously.

This is the newly compiled single crystal turbine blade casting process specification, the process method used is the directional solidification casting process technology mentioned last time, Li Tianfeng looked at it more seriously.

I have to say that Zeng Qinghai still has a thorough understanding of this new process and basically understands his own meaning, but there are still some details and process parameters that are lacking.

Li Tianfeng was not polite, picked up a pen, and changed it while looking at it, everything that was inappropriate and wrong, Li Tianfeng waved his pen and corrected these places one by one.

After such a change, this process specification has a bit of an unrecognizable taste, and many places are even overhauled, full of things, words, numbers, and even arrows, crossbars, and so on.

After changing it for at least an hour, Li Tianfeng was quite satisfied, picked up the phone, and called Zeng Qinghai in again.

Zeng Qinghai also came relatively quickly, and in just a few minutes, Zeng Qinghai knocked on the door and came in: "Boss, you are looking for me." ”

Li Tianfeng nodded and said, "Qinghai, I have changed the process regulations, let me talk to you about some key issues and parameters." ”

After taking over this white paper printing process, Zeng Qinghai flipped through it slightly, and when he saw that there were a lot of changes, he couldn't help but blush. I'm a little embarrassed.

Zeng Qinghai said: "Boss, I'm really ashamed, I still haven't fully understood the essence of directional solidification casting technology. ”

Li Tianfeng said: "It's okay, the process regulations have been changed like this, after you go back, organize the relevant personnel to digest it according to my requirements, I believe it will be another big step forward." Come, let me tell you first about what you didn't fully understand. ”

Li Tianfeng took out a pen and paper again, and explained in detail, so that Zeng Qinghai finally basically understood, and said gratefully: "Boss, now I know it thoroughly, it turns out that there are so many key places, I will go back and improve this process procedure." ”

Li Tianfeng said: "Hmm." Hurry up, our monocrystalline turbine blades are about to start trial production, and I hope to be able to manufacture them smoothly. ”

Zeng Qinghai also nodded, thinking in his heart, it would be great if high-quality single crystal blades could really be cast according to the directional solidification technology.

………

When the time moved to mid-September, the comprehensive development of the turbofan engine of Tianfeng Technology Company was basically nearing the end and began to enter the stage of comprehensive trial production.

Such progress. It is very fast, on the one hand, it is mainly because of Li Tianfeng, a skilled helmsman. On the other hand, Tianfeng Technology has experience in successfully designing turboshaft D and turboshaft E engines.

In the office.

Li Tianfeng is looking at a turbine blade with great interest, this is not a simple turbine blade, this is the third generation of single crystal turbine blade, using the latest and most advanced directional solidification casting technology, the blade looks very beautiful.

Not only is it hollow, but the curved surface of the blade is very beautiful. The blade body is also very beautiful, the design of the blade is still ultra-cool, and the surface of the blade is sprayed with a thermal barrier coating.

Because of the coating, the leaves appear grayish-black. With a special sense of beauty, Li Tianfeng was looking at the leaves and was fascinated, and Liu Wei knocked on the door and came in.

Seeing the blade in Li Tianfeng's hand, Liu Wei asked: "Boss, this is the turbine blade of our turbofan engine!" ”

Li Tianfeng nodded: "Well, the third-generation single crystal blade represents the highest level in China, and looking at the world, such blades are also top-notch." ”

Liu Wei said: "Boss, it is very difficult to make such a leaf." ”

Li Tianfeng said: "We use directional solidification casting technology, it is relatively smooth, after several batches of trial production, the process has basically matured, and in the future, if you manufacture this kind of blade, it will be more smooth." ”

The key to the manufacture of blades like this is that there must be a mature process technology, as long as the process is mature, it can be manufactured according to this process in the future, and there will generally be no more problems.

Liu Wei said happily: "Boss, congratulations." ”

Li Tianfeng smiled, put down the blade, and then said to Liu Wei: "Mr. Liu, what is the matter with me?" ”

Liu Wei said happily: "Boss, a good news, there is a letter from the business-aviation company, and one of their vice presidents will come to our company tomorrow for inspection. ”

Li Tianfeng naturally knows that the company's Xiang-Feng regional airliner is even more famous, and he also knows that the current Xiang-Feng regional airliner is temporarily trying out a turbofan engine of GE company.

Hearing this, Li Tianfeng seemed to see a business opportunity and was overjoyed. Originally, as his turbofan engine began to enter the trial production stage of comprehensive parts, Li Tianzai began to think about how to sell his turbofan engine.

Because the design has not yet been finalized, this advanced turbofan engine is very low-key, basically not unveiled in front of the world, and there are relatively few peers who know this engine, even in the domestic aviation industry, it is rarely known.

It is known that Tianfeng Technology Company is developing turbofan engines, but it is definitely ominous about the development progress and engine performance.

Perhaps, because the turbofan engine is very technical, the development of advanced turbofan engine is even more difficult, requiring strong design technology and process technology support, everyone is not optimistic about Tianfeng Technology Company, and everyone is not interested in learning more about it.

Otherwise, if the aviation industry really knows this turbofan engine in detail, it can still sit still, such a turbofan engine, it will not blow up the domestic aviation industry upside down.

Li Tianfeng was overjoyed and said: "Mr. Liu, this is a good thing, let's welcome their arrival." ”

Liu Wei smiled.

………

On a passenger plane.

Shen Wensheng took an assistant of his own and rode on the plane in a very low-key manner, and Shen Wensheng's destination this time was Tianfeng Technology Company in Songzhou City.

Shen Wensheng also learned from his assistant Xiao Zhao a few days ago that Tianfeng Technology Company was developing a civilian branch technology power, a medium-sized turbofan engine, after hesitating for two days, Shen Wensheng held a glimmer of hope and was ready to go to Tianfeng Technology Company to have a look.

Why only hold on to a glimmer of hope, because as an industry insider, Shen Wensheng is well aware of the level of the domestic aviation industry, and thinks that there is basically no advanced turbofan engine, even if there is, it is also a priority for the military, perhaps, Tianfeng Technology Company is the same, this turbofan engine under development may disappoint himself.

If it weren't for the fact that Tianfeng Technology Company had successfully developed the turboshaft D and turboshaft E engines with outstanding performance, Shen Wensheng would not even have come to Tianfeng Technology Company.

This time, because he just went to Tianfeng Technology Company with a little hope, Shen Wensheng was very low-key, only brought one of his assistants, and did not make a big fuss.

Shen Wensheng said: "Xiao Zhao, you said that the turbofan engine being developed by Tianfeng Technology Company can meet our requirements?" ”

Shen Wensheng asked such a question no less than five times, and his assistant Xiao Zhao said: "Mr. Shen, I also heard from my classmate, my classmate works in Tianfeng Technology Company and told me about such a turbofan engine, but when I asked again, my classmate didn't mention a word, saying that it was a confidentiality regulation that I couldn't violate." ”

Shen Wensheng said: "I hope we will not be disappointed this time, starting next year, GE will reduce our engine share, and now it is September, and there is not much time left for us." ”

Xiao Zhao also nodded solemnly, and then said a little worriedly: "Mr. Shen, the CF34-10A turbofan engine used in our regional airliner is GE, I don't know how the turbofan engine developed by Tianfeng Technology Company has the performance, and whether it can be better than the CF34-10A." ”

In Shen Wensheng's opinion, CF34-10A is a good engine, otherwise, he would not have chosen this turbofan engine as the power of Xiang-Feng.

In his mind, Shen Wensheng came up with the detailed number of CF34-10A.

The CF34-10A is a member of GE's best-selling CF34 family of engines. To date, the CF34 has a total of 6,600 fixed and intended orders worldwide, including single-stage fans, 3-stage booster stages, 9-stage compressors, 4-stage low-pressure turbines, and 1-stage high-pressure turbines......

After thinking about it for a long time, Shen Wensheng sighed, and thought in his heart, maybe he ran for nothing this time, and he was about to return disappointed.

Xiao Zhao, the assistant next to him, saw Shen Wensheng's expression, and couldn't help but sigh slightly in his heart, and thought in his heart, this time it may be really useless, this turbofan engine of Tianfeng Technology Company may really not be very good.

Seeing that Shen Wensheng closed his eyes, leaned back in his chair, and didn't mean to speak again, Xiao Zhao sighed again, his heart full of worry.

………………

Today's three watches, the first one is sent!

Yesterday's four watches, today's three watches, everyone's monthly pass and recommendation ticket support once, I am grateful! (To be continued......)