"Zhang Daxia" This post is still at the top, on the top of the forum homepage, floating red, even the color of the name of the post is flashing, very conspicuous, plus in this forum, "Zhang Daxia" is very famous, as soon as the post comes out, many people click in, see the content inside, many people can not be calm.

Anyone who comes to this forum, somewhat has a little professional level, after seeing the content of the post, their eyes lit up, and they saw the photo of the engine being tested on the test bench, combined with the text content in the post, many people will inevitably feel excited.

This engine of Tianfeng Technology is in this forum, because of the relationship between "Zhang Daxia", it has a certain reputation, at this time, no one questions the authenticity, and even, seeing this post, many people will have the words "Tianfeng Technology" in their minds.

Sure enough, it was the engine of Tianfeng Technology Company, the first fourth-generation turboshaft engine in China, and many people were excited in their hearts at the same time, and they quickly typed and followed.

"Tianfeng Technology Company is bullish, and the engine has actually been verified and tested."

"Yes, and the first verification test was successfully completed, which is really amazing!"

"Tianfeng Technology, a model in the domestic aviation industry, my idol."

"No, I'm a little excited, my hands are a little shaky when I type."

"Dude, I'm the same, typing this line in excitement and trembling."

“……”

As soon as the post of "Zhang Daxia" came out, a large number of posts were immediately followed, the content was basically the same, almost all of them were praises, and many people expressed their excitement at the moment in the post.

The forum managers have been paying attention to this post, and seeing that this post is so popular, the clicks quickly exceeded 10,000, and then immediately it was 20,000 or 30,000. Such a speed has soared, and the follow-ups have gone from tens to hundreds, and then to more than thousands.

The administrator of the forum sighed in his heart, worthy of being "Zhang Daxia", it is really extraordinary, at the same time. The forum administrator is also speculating in his heart where this "Zhang Daxia" is sacred, and every time he can get first-hand information, and every time he breaks the latest news about this turboshaft engine.

This forum administrator is also a military enthusiast, especially fond of aviation equipment, and is also very good at studying engines, and he personally read this post seriously, and after reading this post, his heart is also excited. He muttered that if this engine can be successfully developed, the level of China's helicopter equipment will be greatly improved by several steps, and it is not impossible to even directly achieve a triple jump.

The post was really popular, and some of the gods in the forum also showed their faces and expressed their opinions.

"Zhang Da, I really admire it, every time I get first-hand information. This turboshaft engine gives me hope. ”

"yes. We look forward to the early success of this engine and its rapid entry into mass production. ”

"This engine is simply tailor-made for our Wuzhi Ten, our Wuzhi Ten is equipped with such strong power, and the performance has jumped, I am really looking forward to it!"

"Such an engine can not only be equipped with our Wuzhi Shi. We can also develop the corresponding transport helicopter, such an output power, the transport capacity of this transport helicopter, I really look forward to it. ”

"Yes, yes. Such a powerful and advanced turboshaft engine has great prospects, and can be used by armed helicopters, transport helicopters, and even large civilian helicopters. ”

"I believe that after this turboshaft engine, Tianfeng Technology will definitely develop multiple models of turboshaft engines, which can be used in military transport helicopters and civilian helicopters."

"Yes, at this moment, I also believe in their technical strength, and they can develop a number of corresponding models on the basis of this engine."

“……”

Tianfeng Technology's engine is worthy of completing the first verification test, and everyone began to predict the multiple models of turboshaft engines developed by Tianfeng Technology in the future, and everyone thought about it really far.

If this engine is successfully tested, after entering production, it is completely possible to develop multiple models on the basis of this engine, the core part of the engine can remain unchanged, and the core machine of this engine can be used as a platform.

Because the core machine can remain unchanged, the core machine does not need to be redesigned, and it will be much easier to develop it again on this basis, and the technical difficulty is not as big as redeveloping a new model, and the research and development cycle can be greatly shortened.

In this forum, the post of "Zhang Daxia" has been popular for a long time, and this post has also refreshed the record of this forum, click record, and post record.

……

Tianfeng Technology Company.

For several days, the inspection of various parts was carried out in an intense and orderly manner, and some problems were also discovered, among which several relatively big problems were placed in front of Li Tianfeng.

In the past few days, Li Tianfeng often focuses on the inspection of this engine at the site of the assembly workshop, and the first big problem is discovered by Li Tianfeng himself.

Li Tianfeng was still wearing white gloves and holding a magnifying glass, seriously inspecting the parts in person. The aero engine flame barrel is a key and important part, this part has been completed dimensional inspection, and no abnormalities have been found in the dimensional inspection.

The parts of this engine, especially some important key parts, have been measured and recorded before the first assembly, and now they are measured again, and the two measurements are compared, and the size has not changed, which is clear at a glance.

The flame barrel is a key part of the combustion chamber, of course, it is the key inspection object, and the dimensions of each item have been carefully measured, and the dimensions of the two measurements have been carefully compared, and no abnormalities have been found.

The dimensions before the test, the sizes after the test, and the two sizes were not found to be abnormal, generally speaking, this means that there is no abnormality in this flame cylinder, but Li Tianfeng is experienced, and even if some important key parts are carefully inspected, Li Tianfeng will generally take a serious look at it again again.

Li Tianfeng picked up this flame cylinder, held a magnifying glass, and looked at it seriously, the flame cylinder was very thin, very light, and had many small holes on it.

The surface of the flame barrel is coated with a thermal barrier coating, so that it can withstand higher temperatures and has a longer service life, which is a new design and the first in China.

Of course, there are a lot of such pioneering technologies in this engine, and they have all applied for patents, in this flame cylinder, such a domestic pioneering technology is definitely not only this, such as multi-layer plate cooling technology is the first in China.

Li Tianfeng took this flame canister, sat in front of the inspection table, looked at it carefully, and sometimes even picked up a small flashlight, took a careful photo, and took a closer look, in this way, it was no different from an ordinary inspector.

After looking at it for a long time, Li Tianfeng's brows furrowed slightly, and he looked at a certain part for a long time, and then he took a small flashlight and looked at it for a long time, and the light from the flashlight made him see more clearly.

"There's a problem here." Li Tianfeng thought in his heart, and then, after looking at other related parts, he found a few similar situations.

"Mr. Qiu, come over here and take a look here." Li Tianfeng shouted.

As the chief designer of this engine, Qiu Wen'an has been very exaggerated in the assembly workshop these days, even at night, and usually does not go back until at least ten o'clock in the evening.

Hearing Li Tianfeng's voice, Qiu Wenan immediately put down the parts in his hand and walked over quickly, "Boss, what's the matter?" ”

Li Tianfeng pointed to the inner wall of the flame tube, and said where he found the problem: "Mr. Qiu, take a look here, do you find anything abnormal?" ”

After Qiu Wenan looked at it seriously, he said with a somewhat solemn expression: "Boss, the color of this part is a little wrong, obviously a little darker." ”

Li Tianfeng nodded, Li Tianfeng also found that the color here was a little wrong, and knew why the color was wrong.

When the flame barrel is working, it is a mist of mixed fuel and air mixed burning, and the combustion speed is very fast, and the temperature is very high. At high temperatures, the surface color change will occur when the flame barrel works for a long time, and of course, this color change is normal.

However, if there is an abnormal color change, it is a big problem, which may cause changes in the metallographic structure of the flame cylinder, thereby changing the performance of the flame cylinder, affecting the service life, and the flame may be ablated.

Li Tianfeng pointed to this abnormally colored part and said, "Mr. Qiu, this part must be poorly cooled, and the local temperature is a little high." ”

Qiu Wenan said very agreeably: "It should be like this, so it seems that our flame barrel should make certain design improvements to further improve its cooling performance." ”

The flame cylinder of the aero engine is not allowed to be in direct contact with the flame burning in the flame cylinder, and it is necessary to isolate it, and the flame cylinder of the "TFWZ001" turboshaft engine is mainly thermal barrier coating and air film cooling in terms of flame isolation.

Thermal barrier coating is to coat a special high-temperature resistant material on the surface of the flame cylinder, and this layer of material does not conduct heat and can be well insulated, which should be well understood.

The air film is to form a layer of high-speed blowing air protective film on the surface of the flame cylinder, which can not only isolate the flame, but also blow away the heat, and play a good cooling and protection effect.

The cooling of the flame cylinder of the "TFWZ001" turboshaft engine can be described as a double insurance, but there is often a big difference between theory and practice, and the design theory is very perfect, but it is not impossible that there are some problems in the actual process.

Just like this flame cylinder, the design can be described as very advanced, very reasonable and perfect, and Li Tianfeng also personally checks it, it stands to reason that there will be no problems, but the reality and design theory are sometimes not completely consistent, and now there is such a problem.

Poor local cooling, high local temperature.

………

Today's two watches, the second one will be sent. (To be continued......)