Take Off My Aviation Era

You, you..."

The head of the headquarters was amused by Zhuang Jianye's rogue energy. He clicked on Zhuang Jianye with his finger, and walked towards Workbench No. 8 without saying anything.

Seeing that the head of the headquarters took action, the leaders and the heads of troops who had been curious for a long time naturally all kept up, and soon came to Workbench 8.

It’s no wonder that the leaders who came to inspect did not pay attention. It is because the No. 8 workbench in this workshop is not open like other work stations, but a workshop that extends outside the workshop, except for two doors. In addition, in the entire workshop, there is no other important plant outside the next door.

After Liu Chun's introduction, the heads of the troops who came to know that they were not walking in and out of the front door of the electrochemical drilling processing plant, but the export of the products after processing.

This makes everyone a little strange. If you want to see it, you have to go through the front door. Why do you have to go through the back door of the shipment?

Some of the leaders who are particular about their faces are a bit unsightly. They really don’t look good when they walk through the back door. But when they walk through the long corridor and see the transparent glass door not far away, they don’t see anything ugly or unpleasant. Passing the huge glass door, these leaders and chiefs saw more than a dozen staff members wearing mortal sterile suits shuttle back and forth.

That scene, just like the large-scale microbiological research laboratory in the State Key Biological Laboratory, made people feel a sense of science and technology. At the same time, I couldn't help but wonder whether Tengfei Aerodynamics is engaged in hole processing of turbine blades or biomedicine.

When everyone was curious or puzzled looking at the busy scene through the transparent glass door, Liu Chun's words slowly sounded in the passage: "Excuse me, the chiefs, our NB-711 electrochemical hole The processing principle of the processing equipment is to use high-purity electrolyte to penetrate the electrode tube made of metal titanium, and then perform high-precision processing on the film cooling hole of the turbine blade through the injection hole.

Because high-purity electrolyte requires relatively high environmental requirements, our factory has established two high-standard dust-free workshops for this purpose. This is one of them, the other is next door, and each workshop has two NB-711 electrochemical The hole processing equipment requires tedious dust removal when entering and exiting the inside. Those of us, in terms of time...ah...haha..."

Liu Chun didn’t say everything completely, but everyone present knew that if one or two of them went in well, they would all go in on the 20th. It would take a lot of time for the preliminary dust removal and sterilization process, not to mention every factory building. The space is not large, only enough for two devices and the corresponding operators. If they really go in, even if they do not pollute the production space, they will also affect the staff inside.

Therefore, these leaders and chiefs all expressed their understanding of the choice of Ascendas Aerodynamics, but understanding is due to understanding, and many people are a little puzzled by the approach of Ascendas Aerodynamics.

We must know that the cost of a high-standard dust production plant is not a small number. There are strict standards for each brick and tile, plus a strict air circulation system, antibacterial dust removal system and other related supporting facilities. Is unusual.

As a result, Tengfei Aerodynamics got two seats at once.

We must know that based on today's value in the early 1990s, more than 20 million yuan is enough to build three large-scale factories with large scale and complete supporting facilities.

If biological products are produced, high-performance semiconductors are enough. The problem is that Tengfei Aerodynamics produces turbine blades, and it is only one of the processes. Is it necessary to spend money in it?

Seeing the confusion and doubts on the faces of many leaders and chiefs, Liu Chun did not worry, but smiled more brilliantly. The last sentence made the puzzled and puzzled people instantly solidify: "Here is precision hole processing. The turbine blades, no matter the low-pressure blades or the more demanding high-pressure blades, are all formed at one time without post-processing."

"One-time molding?"

"No need for post-processing?"

As soon as Liu Chun talked out, many people already exclaimed, because whether it is one-time molding or no need for subsequent processing, it actually means the same thing, that is, it is processed by NB-711 electrochemical hole processing equipment. The excellent rate of film cooling holes of turbine blades reaches 100%.

Everyone was not surprised, but was really shocked.

It is necessary to know that film cooling holes are an important means of achieving film cooling of turbine blades. There are many processing methods, such as machining, laser processing, and EDM precision hole processing that these leaders and leaders respect.

But no matter what kind of processing, it will cause more or less additional effects on turbine blades. For example, mechanical processing will produce stress deformation and micro-cracks; laser processing will produce heated coating or micro-cracks.

EDM is slightly better. It will only produce a 0.02mm to 0.01mm thick coating around the precision hole and put it on other parts. This thickness is basically insignificant. It can be used on turbine blades such as turbine blades that need to withstand high temperature and high pressure. The coating with a thickness of less than 0.01mm may be deformed and cracked by the combination of high temperature and high pressure during turbine operation.

The life of the engine is shortened, and the engine is directly scrapped.

Because of this, the post-metallurgical treatment after the machining of the gas film cooling holes of the turbine blades has become a worldwide problem, because if it is not done well, whatever the blades are processed so hard, it is very likely that the blades will be scrapped due to tiny plating and micro-cracks.

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

In other words ~www.readwn.com~ The film cooling holes of turbine blades require not only ultra-precision processing technology, but also powerful metallurgical processing technology.

Both of these are basic disciplines that need to be accumulated over a long period of time, but the country is very weak in this regard. After all, from the industrialization in the 1950s to the present, the domestic industrialization process is less than 30 years, while the Western countries have gone nearly two times. For a hundred years, for basic disciplines that require special experience, the accumulation of time is the value of experience.

Because of this, the domestic pursuit of these two aspects can no longer be described with hard work, but it can be summed up with despair, because you can't even see the taillights of western developed countries. How about not despairing?

But now, Liu Chun, general manager of Ascendas Aerodynamics, said that the film cooling holes processed by their NB-711 electrochemical hole processing equipment are formed at one time without post-processing. What does that mean?

"Yes, our technology has fully reached the world's advanced level, realizing the corner overtaking in the processing technology of the domestic film cooling hole." Before everyone could react from the shock, Liu Chun's confident words were once again in the passage. Reverberated inside.

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