Chapter 619

"You, you..."

The head of the headquarters was amused by Zhuang Jianye's Rogue strength. He pointed at Zhuang Jianye with his finger. Without saying anything, he walked towards the direction of No. 8 worktable with his back.

Seeing that the head of the headquarters had taken action, the curious leaders and army leaders naturally followed up and soon came to the No. 8 worktable.

It's no wonder that the leaders who came to inspect didn't pay attention. It's really because the No. 8 worktable of this workshop is not as open as other work stations. It's a factory extending out of the workshop. In addition to two doors, there is no other important factory in the whole workshop.

After Liu Chun's introduction, the army leaders who had come together knew that they were not going through the main entrance of the electrochemical drilling processing plant, but the export of the products after processing.

This makes people a little strange. If you want to see it, you have to go through the front door. How can you go through the back door of shipping?

Some fastidious leaders don't look very good. It's really hard to hear when they go through the back door. But when they go through the long corridor and see the transparent glass door not far away, they can't see anything ugly or unpleasant. Because through the huge glass door, these leaders and leaders can see more than ten workers in sterile clothes shuttling back and forth.

That scene, just like the large-scale microbiology research laboratory in the state key biological laboratory, makes people feel like science and technology explodes. At the same time, they can't help wondering whether the take-off aviation power is engaged in the hole processing of turbine blades or biomedicine.

When people were curious or puzzled to see the busy scene through the transparent glass door, Liu Chun's words sounded slowly in the channel: "excuse me, our nb-711 electrochemical hole processing equipment uses high-purity electrolyte to penetrate the electrode tube made of titanium, and then through the jet hole to cool the film of the turbine blade High precision machining.

Due to the high requirements of high-purity electrolyte on the environment, our factory has set up two high standard dust-free workshops specially for this purpose. This is one of them, and the other is next door. Each workshop has two nb-711 electrochemical hole processing equipment. Due to the tedious dust removal treatment in and out of the workshop, we, the time Ah Ha ha... "

Liu Chun didn't give a full account of what he said, but everyone present knew that if one or two of them went in well, and all of them went in well, it would take a lot of time to remove dust and bacteria in advance. What's more, the space of each workshop was not big enough, only two sets of equipment and corresponding operators could use it. If they really went in, they would not pollute the production space, It will also affect the staff inside.

Therefore, these leaders and leaders have expressed their understanding of such a choice of take-off aviation power, but understanding is understanding, and many people are puzzled by such a choice of take-off aviation power.

We need to know that the cost of a high standard dusting plant is not a small fraction. Every brick has strict standards. Coupled with strict air circulation system, bacteriostasis and dust removal system and other related supporting facilities, the cost of a plant is very common.

As a result, Tengfei aviation power got two seats at once.

We need to know that in terms of the value in the early 1990s, more than 20 million yuan is enough to build three large-scale factories with complete supporting facilities.

If we produce biological products, high-performance semiconductors will be OK. The problem is that Tengfei aviation power produces turbine blades, which is only one of the processes. Is it necessary to spend money like this?

Seeing the confusion and doubts on the faces of many leaders and leaders, Liu Chun didn't worry, but laughed more brightly. The last sentence made the confused and confused people solidify instantly: "the turbine blades with precision hole processing here, no matter the low-pressure blades or the high-pressure blades with higher requirements, are all formed at one time, and there is no need for post-processing."

"One time molding?"

"No post-processing?"

As soon as Liu Chunhua's words were exported, many people have already exclaimed, because whether it is one-time molding or no subsequent treatment, it actually means the same thing, that is, the excellent rate of film cooling holes of turbine blades processed by nb-711 electrochemical hole processing equipment reaches 100%.

The crowd was not surprised, but really shocked.

As an important means to realize the film cooling of turbine blade, there are many kinds of machining methods, such as mechanical machining, laser machining and EDM precision hole machining, which are highly praised by leaders and leaders.

However, no matter what kind of machining, it will cause more or less additional effects on turbine blade, for example, mechanical machining will produce stress deformation and microcrack; laser machining will produce hot coating or microcrack.

EDM is slightly better, only 0.02mm to 0.01mm thick coating will be produced around the precision hole, which is negligible on other parts. In the turbine blade, which needs to bear high temperature and high pressure, even the coating with thickness less than 0.01mm may be deformed and cracked by high temperature and high pressure during turbine operation.Light engine life is shortened, serious direct scrap.

Because of this, the post metallurgical treatment of the turbine blade film cooling hole after processing has become a worldwide problem, because once it is not done well, the hard-working blade is likely to be scrapped because of the tiny coating and microcrack.

In addition, the post-processing of film cooling holes is also related to the number of film cooling holes and the density inside and outside, which are directly related to the cooling effect of turbine blades.

In other words, the film cooling holes of turbine blades need not only ultra precision processing technology, but also powerful metallurgical processing technology.

Both of them belong to basic disciplines that need long-term accumulation, but the domestic industry is very weak in this aspect. After all, the industrialization process in China is less than 30 years from the 1950s to now, while western countries have gone for nearly 200 years. For basic disciplines that have special experience, the accumulation of time is experience value.

Just because of this, domestic catching up in these two aspects can no longer be described as hard work, but can be summarized as desperation, because you can't even see the taillights of western developed countries. What can you do without desperation?

Now, Liu Chun, general manager of Tengfei aviation power, says that the film cooling holes processed by their nb-711 electrochemical hole processing equipment are formed at one time without post-treatment. What does that mean?

"That's right, our technology has reached the world's advanced level, realizing the curve overtaking of domestic film cooling hole processing technology." Without waiting for people to react from the shock, Liu Chun's confident words echoed in the channel again.