Next is this parts production functional area, this area is the largest, but also the most complicated, basically all the important parts of the product are produced here. Pen Fun Pavilion wWw. ｂiquge。 infoBecause there are a lot of them, the old people have to choose to visit some of them. To Jiang Chen's expectations, the first thing the experts wanted to visit was not the most core engine production plant or other core technology factories, but came to this tire production plant. Seeing Jiang Chen's doubts, the old people smiled and explained to Jiang Chen. That is, don't underestimate this aircraft tire, now there are basically no manufacturers in the country that can produce it. In the Yun_10 project, the old people suffered a lot from this small and inconspicuous part that was neglected. Even some chiefs were furious about this, saying that we could even build airplanes, why can't we build this small airplane tire.

Let's put it this way, the technical difficulty of this aircraft tire can even be compared to the engine technology of this aircraft, and our country only announced that it had mastered this technology in later generations in a year or five. Aircraft tires, also known as aviation tires, are one of the important components of aircraft with high safety and reliability requirements, which need to withstand high speed, high load and high internal pressure. It plays an extremely important role in the safe take-off, landing and taxiing of aircraft, and the conditions of use are very harsh. High internal pressure requires tires to have more layers of skeleton materials, and the carcass of aircraft tires is relatively thick, and the heat generation is relatively large. High internal pressure increases the ground pressure of the tire, and the maximum ground pressure is specified on the runway, so the tire takes into account the requirements of high load and low pressure by increasing the sinking rate and thus increasing the ground contact area. However, the higher the sinking rate, the greater the deformation and heat generation of the tire, which requires the tire to have good heat resistance and thermal conductivity. To put it simply, the performance characteristics of aircraft tires include high load capacity, high inflatable internal pressure, high heat generation, high speed, and short distance that can be continuously taxied.

These characteristics require that the tire must adopt special materials and process technology, and require the materials used in it to have structural materials that not only have particularly high physical properties and low heat generation, but also have reasonable configurations. Moreover, in the development and production of aircraft tires, it is necessary not only to consider many factors to be considered in ordinary tires, such as wear resistance, anti-aging and other characteristics, but also to select and use more demanding rubber raw materials for their special working environment. Because of the high technical difficulty, it is not conducive to R&D and production, so our country's aviation tires have long relied on foreign supply, especially in the more demanding military aviation tires. After the joint efforts of several generations, it was finally in the next one or five years to get rid of the dependence on foreign products. You must know that we announced the successful development of aero engines much earlier than this time, so it can be seen that the difficulty of this aircraft tire technology.

After hearing the old man's explanation and Jiang Chen's recollections, Jiang Chen suddenly realized, how could he forget this seemingly inconspicuous thing, and the old people reminded him in time. After hearing the introduction of the old people, the leading cadres and researchers of the tire factory also felt a lot of emotion, they did not expect that this small tire would have so many requirements and such a high difficulty. This also aroused their fighting spirit, and immediately someone assured Jiang Chen that they would definitely be able to research and produce this aircraft forum. Jiang Chen was very pleased with this, and the old people were also very happy, and told them that now the technical information about aircraft tires is in the newly built data storage center, and they can go over to check it, and they can come and ask them at any time if they have any problems. This made the leaders and technicians of the factory very puzzled, and when they heard Jiang Chen's introduction and explanation, the leaders and technicians of the factory became excited. This is going to build an airplane, and everyone is gearing up to do it. Because the better the company develops, the higher the efficiency of their factory, and their wages will be increased accordingly, which makes them not happy.

Then the crowd went to this factory where the chassis frame and skin were stamped. Coming here, these old people can't wait to see the specific situation of this. You must know that this skeleton and skin are two important places in the aircraft, and they are also two very important technical difficulties. The first is the skeleton structure, which has high strength requirements, good toughness, and can adapt to high or low temperature, high humidity, dry and other extreme environments to produce a smile on these skeletons. For example, we often talk about thermal expansion and cold contraction, which is extremely demanding on the plane. What to do when the material expands, and what kind of measures to take when it shrinks, these are all questions that engineers need to consider. And there is also an important requirement, that is, it must be light, and its weight must be taken into account while requiring strength and toughness. If the weight is too heavy, it is not appropriate, because too heavy weight will affect the take-off weight of the aircraft, so that the aircraft will increase fuel consumption, reduce the passenger or cargo capacity, and will also affect the flight range, and even the requirements for the take-off runway. Therefore, not to mention the skeleton structure alone, the technology required is extremely complex and very difficult.

Next is the pressing workshop of automobile plates, which the old people are very interested in and carefully watch the entire production process. However, the old people are not satisfied with the results, because the pressure used for the automobile sheet pressing press is too small, and it is only used for the pressing of automobile plates, such as the components and plates on large aircraft, such pressure and strength are far from enough. Although Jiang Chen said that they were only producing ******** at present, they frequently caused the old people to stare at each other. In their words, you keep building ********, don't you build big planes, so what's the use of asking them to come? In this regard, Jiang Chen could only admit his mistakes again and again, and assured the old people that the medium-sized and large-scale water pressure opportunities should be established as soon as possible, and put into this research and construction, which would not affect the development and use of the old people, which made the old people smile again.

Then there is this engine production plant, and the old people don't seem to have much enthusiasm for it, and they think it's all pediatrics, compared to airplanes. However, they seem to be very interested in this new material and high-precision gears and other parts, because they think that this kind of high-precision parts processing and manufacturing workers are widely used in airplanes, so they need it very much. If Jiang Chen hadn't stopped him, it is estimated that the production technology director of this factory would have been dragged by the old people to build airplanes.

In addition, the old people are also very interested in this electronic component research and development laboratory, especially after seeing a lot of modern micro electronic components and micro micro integrated circuits, which makes them very interested and affirms it. This is also the only place where the old people collectively praised Jiang Chen all day. Everyone thinks that this project is done well by Jiang Chen, and this kind of miniature electronic components and micro-miniature integrated circuits use a lot of space for both civilian and military applications, and can also be well used in aircraft. There are even a few experts who specialize in the study of fly-by-wire on airplanes, saying that they want to continue their research here, and strive to design and develop a more advanced fly-by-wire system. (To be continued.) )