322: C322 Military Orders

C322 Military Orders

2The rise of Dong Chen SC1 did not really excite the upper echelons, but the thing that excited them the most... It was still the highly confidential high precision machining center of Dong Chen. Ever since Zhang Yunfeng made the processing center of Dong Chen public to the higher ups, ... The higher ups continuously received large amounts of processing needs from the military and aerospace fields. It seemed that they knew that Dong Chen possessed the world's best high-precision processing ability. All the military companies wanted to take advantage of him.

The various needs that were gathered in the hands of the higher ups had already exceeded 400. Some of the requirements were significant and urgent, such as the high-precision processing of the aerospace engine parts, etc. Some of the requirements made people laugh or cry. For example, light weapons Manufacturing Enterprise. He wanted to let East Star process a few gun barrels and barrels of different specifications in order to increase the firing accuracy, range, and power of the various firearms.

This requirement could be said to be very absurd. There were more than ten million military firearms in the country. If every gun needed to be customized with high precision, then Dong Chen, the processing center, would work for a hundred years without stopping. Perhaps it would be difficult to process all the gun barrels needed for the active guns, even if the high-precision gun barrels really had such high precision. The significance of this was also difficult to apply in mass production.

Finally, the higher-ups gave an objective priority. Furthermore, after handing the first document to Director Liu, Director Liu read the top-secret document. He immediately felt that the responsibility and significance were quite significant, and immediately took a plane to City J without any hesitation.

In the past two days, Zhang Yunfeng's family had moved to the compound in Swan Bay. Zhang Yunfeng finally had some free time to accompany his parents for a few days as if it was a holiday. The family of three was happy and harmonious. This made Zhang Yunfeng feel a little depressed. Now, Dong Chen's profitability. At this time, it was already enough for him to spend a few lifetimes on Dong Chen. Could he also give himself some time to relax and have some time to enjoy life?

Seeing that the production line of Dong Chen in City J had started to have productivity, the SC1 project had been completed perfectly and had achieved unprecedented success. The next step was to set up the competitive team of Dong Chen. He did not need to worry too much about it. He only needed to do two things. One was to find an excellent professional manager of the team. The other was to provide enough cash for the manager to build Dong Chen's team without any worries.

However, just as Zhang Yunfeng thought that he could take a vacation, Director Liu came to him.

Furthermore, Director Liu's arrival this time was quite unusual. Four tall and strong men in suits and black sunglasses followed beside him. One look and one could tell that these four men were definitely skilled. Director Liu also had a metal case in his hand, which was a metal case. It required two keys to open at the same time to open it. This was the first time Zhang Yunfeng saw it. He thought it was the legendary nuclear weapon terminal that the President of America and E had.

Zhang Yunfeng invited Director Liu to the study upstairs to talk. The four big guys, two guarding the staircase of the compound building, and two guarding the door of the study room, were all very alert.

Zhang Yunfeng and Director Liu sat across from each other and could not help but ask curiously, "What's going on today? Why is there such a big commotion?"

Director Liu smiled and said, "Today I brought an extremely important confidential document." As he spoke, he placed the box in his hand on the coffee table. He went out and called a tall and strong man in. As soon as the man entered, he immediately took out a key from his neck and unlocked one of the locks on the box. He then put away the key and bowed to Director Liu. He turned around and walked out.

After he went out, Director Liu took out another key. He opened the other lock and opened the metal box. He took out a sealed file bag and said to Zhang Yunfeng with a serious face, "There is a document here. Take a look first."

Zhang Yunfeng took the file bag and opened it. He was surprised to find that it was a request processing document.

The commission processing did not surprise Zhang Yunfeng. What surprised Zhang Yunfeng the most was that this commission letter was to ask Dong Chen to build three nuclear submarine propellers according to the military's request.

This shocked Zhang Yunfeng greatly. He exclaimed and asked, "Director Liu, did the higher-ups really want Dong Chen to process this project?"

Director Liu nodded and explained, "This project has already matured in the hands of the military. The three types of designs are waiting to be selected. They are all designed with seven-leaf propellers. The three propellers are in terms of speed, noise, and resistance. Each of them is slightly different. The military has already conducted experiments on these three designs. The result was not very ideal. Moreover, the military's high precision processing ability was comparable to Dong Chen's. Therefore, the person in charge of this project... I hope that Dong Chen can occasionally reprocess these three design plans, and then the military can retest them. "

Zhang Yunfeng smiled and thought in his heart: The most important part of the submarine is the propeller, because the propeller is the last part of the submarine's power conversion. It is also the most crucial relief, be it nuclear power or diesel power. In the end, the propeller must be used to form a thrust, and for sonar detection, the biggest source of noise in the water was also the propellers. The shape of the propellers not only determined the noise during the operation, but also the sound of the propellers. It also determines the maximum utilization rate of power. It can be said to be an extremely advanced national defense technology. For strategic nuclear submarines, three parts were the most crucial... Other than nuclear reactors and submarine-launching missiles, there are also propellers. So, the appearance of submarine propellers by developed countries had always been classified as top secret.

Then, Director Liu took out a special USB drive and an extremely thin laptop from the box. He then handed the USB drive to Zhang Yunfeng and said, "All the detailed data is here. If you understand... You can take a look first."

Zhang Yunfeng nodded. Just as he was about to take his computer, Director Liu hurriedly said, "Don't take the computer. Use my computer first. This one does not have the function of connecting to the Internet. It is safer."

Zhang Yunfeng smiled helplessly and said, "You think this thing is top secret? It does have an extraordinary meaning. But according to our current situation, there are nuclear submarines. They are all better than what we made. There are no nuclear submarines. Taking our data is not very useful. In terms of the manufacturing process of propellers, America, Russia, France and Germany are much better than us. "

Although he said it as if it was a joke, Zhang Yunfeng still ended up with Director Liu's laptop. After turning it on, Director Liu plugged in the USB drive and scanned the fingerprint at the end of the USB drive. Then, he entered a long and complicated password into a security software in the computer. Only then did he open the file in the USB drive.

Zhang Yunfeng roughly looked at a few detailed blueprints and discovered the three designs. All of them were designed with seven leaves. As for the information in the Super Learning System... The current top manufacturing process was eight or nine leaves. The most active Ohio strategic nuclear submarine in the United States was designed with eight-leaf propellers. The latest model that was about to be finalized had probably been designed with nine leaves.

Zhang Yunfeng asked in surprise, "Why does our newest nuclear submarine need a seven-leaf design? Isn't this a bit outdated? At least eight leaves, right?"

Director Liu smiled helplessly and said," This thing isn't that simple. It's not that eight leaves are eight leaves. The current design of the seven leaves is a waste of a lot of manpower and resources. We have calculated, manufactured, and tested various data in the water time and time again. The size, thickness, and angle of the propellers have slightly changed. The result might be from the sky and the earth, especially the inclined angle. If there was a 0.1 degree deviation, the noise would be much louder. We have already been relatively mature in the design of the Seven Leaves. We have tried the Eight Leaves design many times. Until now, there is not a single design that is close to the current standards of the Seven Leaves. Therefore, we can only choose seven leaves for now. "

Zhang Yunfeng sighed lightly and said, "It's really not an ordinary difficulty. Even building a propeller would have to face such a huge problem."

"That's right!" Director Liu also had a helpless look and said, "You see, the difference between this submarine's propeller and the propeller of the submarine is too great. The propeller of the water ship does not need to spend so much effort to design and make. It does not matter if the noise is louder. Anyway, the noise of the water ship is not a big problem. Even if the thrust rate is slightly lower, it doesn't matter. The size of the water ship was large and the space was large. From the engine, it could make up for the missing parts on the propellers. However, a submarine was different. Its space itself was very precious. The power configuration had been maximized, and the resistance in the water was also great. The most fatal thing about slow speed is that the key to preserving the submarine's survival ability is the size of the noise. This way, the submarine's requirements for the propellers are too high. It can be said that in the entire world, wherever the propellers are used... The submarine's propellers are all made with the highest degree of technology, nothing else. "

After saying that, Director Liu continued, "We also know that Dong Chen's manufacturing process is very strong. The nine leaves and eleven leaves of the western countries' propellers, I think Dong Chen will be able to process them as well. However, we don't have a blueprint, which is the biggest problem. Just the Seven Leaf propeller technology alone, we have been working on it for 20 years. In the end, we only managed to get a basic grasp of it after buying E country's Kilo-class. "

Zhang Yunfeng nodded and thought to himself. With Dong Chen's high precision processing ability, combined with the information in the Super Learning System, Dong Chen had the ability to create the best Eleventh Leaf Big slanted propeller. As for the blueprint problem that troubled the military, it was nothing to Zhang Yunfeng.

Thinking of this, Zhang Yunfeng opened his mouth and said: "Director Liu, could you please convey it to the leaders on my behalf? Dong Chen will not produce the old and imperfect Seven Leaf propeller according to this blueprint. I will apply to the team. I guarantee that I will be able to get better technologies. The propellers produced by Dong Chen will definitely be better than the military's design. "

Director Liu was so shocked that he could not speak. After a while, he muttered, "No way? That team of yours even mastered the manufacturing technology of submarine propellers?"

Zhang Yunfeng smiled and said noncommittally, "Let me ask. Although I am not sure, I think it is not a big problem."

Director Liu knew that Zhang Yunfeng rarely or almost never said something he was not confident in. He heard what Zhang Yunfeng said. He was pleasantly surprised, but also surprised. What kind of existence was the team behind Zhang Yunfeng? They could build the best cars and the best materials. Now... They even control the core military technology. Wasn't this too hard to understand?

At this time, Zhang Yunfeng spoke again, "The machine tools in the Dongchen processing center have the largest processing diameter. It can be implemented for about ten meters, but the biggest problem at the moment is that Dong Chen still lacks professional equipment. For example, the crane and the fixed equipment for the large propeller. I'll have to trouble you with these. "

Director Liu nodded and said, "This is a small matter. It can be solved in one day."

Zhang Yunfeng asked again, "What about the materials? Using special alloy 036 again?"

Director Liu said, "Yes, the current material technology we have is only this material that is most suitable for making submarine propellers. Copper alloy will not rust and can be more resistant to corrosion at the bottom of the sea. It will also be able to withstand the erosion of the air bubbles when it is pushed forward, and among all the copper alloy materials, the performance of the special copper alloy # 036 is the best"

Zhang Yunfeng nodded with a smile and said, "According to the size requirements on this, the weight of the new submarine should be at least 9,000 or 10,000 tons, right?"

Director Liu laughed and said, "Even you are half an expert, Comrade Little Zhang. Although it is not easy to disclose too much about the details, but your guess is right. It is indeed more than 10,000 tons. If Dong Chen's technical and processing abilities are really very good, then the military will definitely entrust Dong Chen with the production of the propellers of low-tonnage regular submarines. "

After saying that, Director Liu asked again, "You have a very deep understanding of materials. Do you have any more suitable copper alloys to make this kind of propeller?"

Zhang Yunfeng smiled and said, "It doesn't mean much. No matter how strong the copper alloys are, they can't be beyond the category of copper alloys. In terms of strength, it should be steel alloy. In terms of light weight, titanium alloy. In terms of corrosion resistance, the alloy material could not even compare to the high-end Ring Oxide resin. However, the latter was only applicable to naval vessels. For submarines, there are still some undeveloped technologies, the biggest problem at the moment... The problem is the design and the manufacturing process. It is not a problem to use # 036 copper alloy. As for the oxygen resin, if Dong Chen stepped into this industry in the future, he would have an even more advanced product. Naturally, we can change it again. "

"Yes." Director Liu nodded and smiled. "Then I will leave this matter to you. The corresponding auxiliary equipment and materials. I will be ready in the next two days. At that time, it will be shipped to City J. The military's commission list was clearly written on it. These three designs... Each of them needs two finished products that meet the military's requirement of 1 micrometer precision. "

Currently, the best manufacturing process in the country can reach 0 degrees of precision. 0.25 mm, which is 25 microns, and Dong Chen's manufacturing precision has reached 0. 0.001 micrometers, the military's requirement of 1 micrometer precision. To Dong Chen, it was very easy.

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