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Chapter 619 Overtaking on a Curve

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    "You, you"

    The head of the headquarters was amused by Zhuang Jianye's rogue energy. He tapped Zhuang Jianye with his finger and without saying anything, he walked towards the No. 8 workbench with his hands behind his back.

    Seeing that the head of the headquarters was taking action, the leaders and troop leaders who had already been overflowing with curiosity naturally followed him, and soon arrived at workbench No. 8.

    It's no wonder that the leaders who came to inspect didn't pay attention. It's because the No. 8 workbench in this workshop is not open like other workstations, but a factory building extended outside the workshop, except for two doors.  In addition, in the entire workshop, there is no other important factory building outside the next door.

    After Liu Chun¡¯s introduction, the army leaders who came together realized that the route they took along the way was not the main entrance to and from the electrochemical drilling processing factory, but the exit for the transfer of products after processing.

    This makes everyone a little strange. If you want to go to see it, you have to go through the front door. Why should you go through the back door where the goods are shipped?

    Some of the fastidious leaders had unsightly expressions on their faces. It really didn¡¯t look good to go through the back door. But when they walked through the long corridor and saw the transparent glass door not far away, they couldn¡¯t see anything ugly or unpleasant because it was transparent.  Passing through the huge glass door, these leaders and chiefs saw more than a dozen staff members wearing sterile uniforms walking back and forth inside.

    That scene is just like the large laboratory for studying microorganisms in the National Key Biological Laboratory. While it makes people feel full of science and technology, they can't help but wonder whether Tengfei Aerodynamics is engaged in hole processing of turbine blades or biomedicine.

    Just as everyone was either curious or puzzled looking at the busy scene inside through the transparent glass door, Liu Chun's words slowly rang out in the passage: "Excuse me, sirs, 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 titanium metal, and then use the injection holes to process the film cooling holes of the turbine blades with high precision.

    Since high-purity electrolyte has relatively high environmental requirements, our factory has specially built two high-standard dust-free factories for this purpose. This is one of them, and the other is next door. Each factory has two nb-711 electrochemical machines.  Hole processing equipment requires tedious dust removal in and out of the equipment. For those of us, timeahhaha"

    Liu Chun didn't fully explain what he said, but everyone present knew that if one or two people went in, it would take a lot of time just to remove dust and sterilize them in advance, not to mention each factory building.  The space is not large, only enough for two pieces of equipment and corresponding operators. If they really go in, even if they don't pollute the production space, they will have an impact on the workers inside.

    Therefore, these leaders and chiefs expressed their understanding of Ascendas Aviation Power's choice, but understanding is understanding, and many people are a little confused by Ascendas Aviation Power's approach.

    You must know that the cost of building a high-standard dust extraction factory is not a small sum. Every brick and tile has strict standards. Coupled with a strict air circulation system, antibacterial dust removal system and other related supporting facilities, the cost of a factory building is tens of millions.  It's ordinary.

    As a result, Tengfei Aviation Power acquired two seats at once.

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

    "If we are producing biological products, high-performance semiconductors will be enough. The problem is that Tengfei Aerodynamics produces turbine blades, and it is only one of the processes. Is it necessary to spend so much money on it?

    Seeing the incomprehension and doubts on the faces of many leaders and chiefs, Liu Chun was not anxious, but smiled brighter. His last words made everyone who was confused and confused instantly solidified: "Precision hole processing is done here.  The turbine blades, whether low-pressure blades or high-pressure blades with higher requirements, are all formed in one go, without the need for post-processing.¡±

    "One-time molding?"

    "No need to do post-processing?"

    As soon as Liu Chun's words came out, many people already exclaimed, because whether it is one-time molding or no subsequent processing actually means the same thing, that is, it is processed using nb-711 electrochemical hole processing equipment.  The quality rate of film cooling holes in turbine blades reaches 100%.

    Everyone was not surprised now, but really shocked.

    You must know that film cooling holes are an important means of achieving film cooling on turbine blades. There are many processing methods, such as mechanical processing, laser processing, and EDM precision hole processing, which are highly praised by leaders and chiefs.

    But no matter what kind of processing, it will have more or less additional effects on the turbine blades. For example, mechanical processing will produce stress deformation and microcracks; laser processing will produce heat.Coating or microcracks.

    Electrical discharge machining is slightly better, and will only produce a 0.02mm to 0.01mm thick coating around precision holes. When placed on other components, this thickness is simply insignificant. But on turbine blades, which are precision objects that need to withstand high temperatures and high pressures, even if  Coatings with a thickness less than 0.01mm may be deformed and cracked by the combination of high temperature and high pressure during turbine operation.

    The life span of the engine may be shortened at best, or it may be directly scrapped in serious cases.

    Because of this, the post-metallurgical treatment of turbine blade film cooling holes has become a worldwide problem, because if it is not done properly, the blades that have been painstakingly processed will most likely be scrapped due to tiny coatings and microscopic cracks.

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

    In other words, the film cooling holes of turbine blades not only require ultra-precision processing technology, but also require powerful metallurgical processing technology in the later stage.

    Both of these are basic subjects that require long-term accumulation, but China is very weak in this regard. After all, from the industrialization in the 1950s to the present, the domestic industrialization process has been less than thirty years, while Western countries have gone nearly two years.  For hundreds of years, for basic disciplines that require special experience, the accumulation of time is experience value.

    Because of this, the domestic pursuit of catching up in these two aspects can no longer be described as hard work, but can be summed up as despair, because you can¡¯t even see the taillights of cars in Western developed countries, so what if you are not desperate?

    Now, Liu Chun, general manager of Tengfei Aviation Power, said that the air film cooling holes processed by their nb-711 electrochemical hole processing equipment can be formed in one go, without the need for post-processing. What does that mean?

    "That's right, our technology has fully reached the world's advanced level, achieving overtaking in domestic air film cooling hole processing technology." Before everyone could react from the shock, Liu Chun's confident words came out again in the passage  Echoed within.

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