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Chapter 69 Aerospace Bearings

After listening to Xiang Shixiong's words, Wang Bin thought about the performance of his glass.

Indeed, as Xiang Shixiong said, if the fuselage of this drone really uses this glass, as long as the engine is strong, it is not impossible to reach the speed of Mach 4, but the temperature of the aircraft fuselage at this time , will also rise to the limit that this glass can withstand.

And this speed can only be achieved at an altitude of more than 10,000 meters. If the height of the drone is lower than 10,000 meters, then flying at this speed will only cause the temperature generated by the friction between the glass and the air. It exceeds the limit of the temperature that their glass can withstand.

Of course, if the speed is below Mach 4, the high temperature resistance and other properties of this glass can still be tolerated. Of course, if the fuselage is coated with heat-insulating paint, Mach 4 at low altitude is not impossible.

So Wang Bin said: "It is true that if we use our glass as the fuselage, the speed of Mach 4 at high altitude is not a problem. Even at low altitude, the speed of Mach 3 is still acceptable."

"The specific data has been calculated by our scientific researchers at Xifei, and it is absolutely not a problem. The biggest question now is whether your Tiangong Technology has the ability to use this glass to manufacture the fuselage of this drone. .

After all, the fuselage of this drone is not made of flat glass. Take the wing of this drone as an example. The wing is a one-piece wing, which must be completed at one time during the production process. , and at the same time, there should be no slight deformation, otherwise, the UAV will easily lose control during flight, especially during high-speed flight.

In addition, there is also the segmented part of the fuselage, which is also very technically difficult. The drone body is required to be segmented, without any puncture marks on the surface, and without any raised areas. This is a speed of Mach 4. A little burr in the aircraft may cause problems with this aircraft.

The last part is the nose and tail, and there can be no mistakes,..."

With the introduction of Xiang Shixiong and these two engineers, Wang Bin has a basic understanding of the technical difficulties in manufacturing the fuselage and wings of this drone. Solve these technical difficulties.

After Xiang Shixiong and the others introduced all the technical difficulties of this drone body, Wang Bin fell into thinking. The manufacture of this drone body is a very important task for Wang Bin or Tiangong Technology. big challenge.

The first is the thickness of the fuselage glass. According to their previous introduction, Wang Bin believes that the thickness of the fuselage glass of this drone should not be too low, at least not less than one millimeter.

Otherwise, when the aircraft is flying at high speed, the heat generated will definitely overwhelm the internal parts of the drone. After all, the thinner the glass, the worse its heat insulation performance, so we want to ensure that the internal zero To ensure the safety of components, the glass must be at least one millimeter thick, preferably two millimeters thick.

But in this case, the weight will definitely be more than double that of glass that is one millimeter thick or even thinner, which will also have a major impact on the overall performance of the drone.

But Wang Bin suddenly thought that in fact, a thickness of one millimeter is enough, and there is no need to increase the thickness of the glass, because in terms of heat insulation, in addition to the glass of the fuselage itself, Xifei will definitely use other technologies by then. To increase the thermal insulation performance, such as coating the fuselage with a thermal insulation coating and so on.

After a long time, Wang Bin said to them: "Mr. Xiang! As for the fuselage of this drone, we Tiangong Technology can try using glass.

Mr. Xiang, please don't have too much hope. Although the glass of our Tiangong Technology is advanced, we really haven't thought about using this glass to make drone fuselages. No one knows whether it is feasible. The most important thing is that although this drone is not big, the structure of many parts of the fuselage is a bit complicated! "

"Ok, I know,

In fact, we are also holding the attitude of giving it a try, using pure glass to make the fuselage, this is the first attempt! As long as you do your best. "Xiang Shixiong said.

Then Xiang Shixiong finally opened his briefcase, took out a document data and said to Wang Bin: "Mr. Wang, these documents are the glass data we ordered this time, please keep them well. At the same time, keep confidential. I won’t go into details, we hope to wait for good news from you from Tiangong Technology.”

Then Wang Bin chatted with Xiang Shixiong and others for a while, just when Xiang Shixiong wanted to get up and leave, Wang Bin said to Xiang Shixiong: "Mr. Is there any need?"

"What? The bearings of the engine? Has your company developed any good things during this period of time? Could it be that Professor Hu's research has made a breakthrough?

I remember that when Professor Hu was on the job, he was engaged in research in this field. Even after he retired, our company wanted to hire him, but in the end, Tiangong Technology took advantage of him. "

Speaking of this, Xiang Shixiong continued with great interest: "Mr. Wang! Can you tell me about the specific performance of this bearing? If the performance meets our XAC requirements, we don't mind using your Tiangong Technology bearings."

Regarding Xiang Shixiong's belief that this is the glass developed by Professor Hu, Wang Bin did not refute. He said: "The performance of this bearing is very good. Before, the performance of the bearing would not change much. At the same time, the minimum life of this bearing, according to our estimation, has reached more than 5000 hours.

Of course, this is only our estimate. After all, it has only been a week or two since our bearing was developed. Even if it is tested 24 hours a day, it will only take a few hundred hours, so the specific data is still unknown. In the test, but according to Professor Hu's calculations, the life of this bearing will never be less than 5,000 hours. "

As he spoke, Wang Bin took out the bearing that Jiang Zongliang had brought from Professor Hu from the drawer of his desk, handed it to Xiang Shixiong, and said again: "Mr. Xiang! This is the aviation bearing we made. Bearings, but the manufacture of this bearing requires a variety of strategically scarce materials and ultra-high-precision CNC machine tools, so we did not manufacture it on a large scale. Until now, we have only manufactured a small amount for testing.

Mr. Xiang, the bearing in your hand is actually just a test product, and it has been tested for a week. This bearing still has some deficiencies in precision and other aspects. This bearing is only manufactured using a three-level precision machine tool. ,"

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