Chapter 323 ten one leaf large side slope!

Even western countries have not grasped the essence of the technology of 11 blade large side skewed propeller. In fact, propeller can be regarded as a round metal piece, and there are countless possibilities and schemes to make this metal piece into 11 blades, but just like the golden cutting point, there is only one point, which is really just right. If you miss this point, you may It will backfire. Even if the effect is good, it is far from the perfect point. For a propeller with a diameter of more than four meters or even five meters, there is a perfect point in the propeller area, a perfect point in the side angle, and a slight change in the shape. There are countless kinds of possibilities. But if you want to master the perfect point, I'm afraid millions of experiments and calculations are hard to touch To this unique point of perfection in the overall sense.

The most important reason is that in addition to the design scheme, there is also the manufacturing process. The manufacture of large skewed propeller requires a very high level of curvature manufacturing process. On this point, we must have a very accurate grasp. Otherwise, once there is a problem in the accuracy tolerance, it will not only affect the manufacture of other blades, but also affect the actual performance of the whole propeller.

At that time, the Maoists of northern alligator didn't have the ability to do this kind of fine work. Later, because of the illegal operation of Toshiba, the Maoists of northern alligator and even the later eguanians made great progress in the manufacturing technology of submarine propeller. It can even be said that the current manufacturing technology of screw propeller and CNC machine tool technology in China, quite a part of which is also through the Maoists of northern alligator Grounding takes advantage of Toshiba.

For high-level machining of multi blade and large skew propeller, it is necessary to have enough abnormal precision machine tools as backing to realize the real possibility. Unfortunately, Dongchen is absolutely the most abnormal in the world in the field of Precision Rice manufacturing

In addition, there are a complete set of advanced design schemes in the second year, and the abnormal strength of Dongchen high precision machining center, Zhang Yunfeng dare not say that it's still a piece of cake to build the world's top-notch submarine propeller with the highest scientific and technological content, the best mute effect and the highest thrust utilization rate. Although this alone can't make up for the fundamental shortage of China's nuclear submarine, but At the very least, China's nuclear submarines have the ability to enter the Pacific Ocean.

Although Liu Ganshi is very easy to communicate with others, and he doesn't take any official positions in front of Zhang Yunfeng, his routine is always vigorous, but everything Zhang Yunfeng needs will be prepared in the fastest time, and the hoisting equipment, fixed equipment and corresponding materials used to process large-diameter propeller will be installed in place within two days. In addition, the whole height The interior of the precision machining center is attached with the best sound-absorbing materials at present. The deafening sound of cutting and grinding inside can't be heard outside through the wall.

Zhang Yunfeng and Xiaoer have agreed on a most suitable design scheme, and Xiaoer is full of confidence in this seemingly ultra-high difficulty precise processing. Only when it designs and transforms the machine tool can it give full play to the maximum potential of this set of machine tools. In addition, every detail of the design scheme is in Xiaoer's "Super Brain". Several factors add up to make him do something It's also handy.

Eleven blade large side inclined propeller started quietly in a sunny noon. In the whole high-precision machining center, except for the complete set of equipment operated by the second grader, only Zhang Yunfeng with noise proof earmuffs, goggles and masks was available.

The sophomore should use machine tools to perfectly embody the excellent engineering mechanics, physics and high-precision and large curvature processing technology. The whole machining center is full of sparks. The cut large copper alloy will be immediately picked up and transferred by a mobile mechanical arm, while the fine metal scraps from grinding will be all inhaled by a huge vacuum cleaner to avoid bringing Any unnecessary impact.

In addition, the dust-free design is adopted when the plant is built, which ensures that the second child has an absolutely ideal processing environment.

The ultra-high precision processing technology, mature manufacturing technology and unparalleled operation fit make the whole project progress very fast. The first ten one blade large skew propeller took less than five days to complete the processing!

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Even the Americans can't master such a technology. Zhang Yunfeng has no doubt about the real value of the propeller. If someone takes a high-definition picture, the perfect dynamic shape in the picture is more expensive than an Ohio class strategic nuclear submarine worth at least $2 billion in the eyes of the Americans Heavy. If Americans were asked to bid for the propeller, they would even be willing to pay the price of five Ohio ships.

This propeller, which contains technology, can no longer be measured with money. It has enough ability to affect a country's national defense strength.

Although the Americans publicize the threat theory of China on the surface, in fact, they despise the nuclear strike capability of China. The strategic nuclear missiles of China are far less powerful than those of E's Poplar M. whether they are launched from launching wells or land-based mobile launch, the missiles are difficult to break through the missile defense system of the United States. In the eyes of the Americans, the sea based nuclear strike force is even more powerful It's very weak.

There are two key reasons. First, China's submarine launched nuclear missiles have an effective range of no more than 8000 kilometers. In China's coastal areas, they cannot cover the U.S. land at all. Only entering the Pacific Ocean can they have the ability to cover the entire U Submarines, it's very difficult to get into the Pacific Ocean.

Among them, the biggest problem is noise!

It's noisy. In the face of the anti submarine technology of the United States and tungho, China State submarines can't break through the blockade of the United States and Japan quietly and enter the Pacific Ocean. However, if the problem of noise can be solved, everything will be different! It will be very difficult for the United States and Japan to catch the trend of China's submarines, and the discovery rate will be greatly reduced. As a result, the probability of China's submarines carrying nuclear bombs into the Pacific Ocean will be greatly increased. As long as they enter the Pacific Ocean, they may reach the throat of the United States.

Sometimes, national defense science and technology will change dramatically due to the improvement of one component.

It took Zhang Yunfeng ten days to complete the manufacture of two large skew propellers. After the completion of the manufacture of the two propellers, Zhang Yunfeng immediately informed director Liu, brought submarine experts to Dongchen for acceptance, and prepared a perfect transportation mode to transport the two propellers away.

because Zhang Yunfeng did not open the high-precision machining center to anyone in the manufacturing process, nor did he talk to Director Liu about what he wanted to make, not the seven blade propeller, but the amazing eleven blade propeller. Therefore, when director Liu led four core experts and a senior military officer to the door, he did not know What kind of things are waiting for them.

Several people were arranged to enter the high-precision machining center in the middle of the night. The door was opened. First, they entered an isolation room. After the people entered the isolation room, the door was closed and the isolation door was slowly opened. But at this time, the high-precision machining center had stopped working. The whole machining center seemed quiet and abnormal. The most important thing was that no lights were turned on and no one knew the dark factory in front of them What kind of surprises are waiting for them in the room.

Director Liu looked at the direction of Zhang Yunfeng and said with a smile, "Comrade Zhang, it's time to play with us in mystery."

Zhang Yunfeng smiled and said, "I'm afraid to frighten you, so I want to prepare you psychologically in advance. Later, no matter what you see, remember to be calm as the first factor."

Liu can't help but smile and hasten: "come on, I haven't seen any big waves, so don't make a fuss about it. Turn on the light and let's see!"

Zhang Yunfeng said to Xiaoer, "Xiaoer, are you ready? Let some people have a good look! "

Xiaoer laughs and says: "boss, are you still worried about my work? I'm afraid that if they have bad psychological quality, they will have a heart attack because of these two things! "

Zhang Yunfeng said: "well, let's stop talking nonsense and power the lighting system!"

"OK!"

All of a sudden, the high-power lighting system around started. When the lights were on, two shining propellers were suspended in the middle of the sky. The refracted lights almost made everyone blind for a short time.

director Liu is OK. When the other four top experts saw the two ten one blade large side inclined propellers that had been hoisted, they shouted loudly and rushed to them immediately.

Eleven blade large side oblique propeller technology is the cutting-edge technology that countries with nuclear submarines all over the world dream of. Even porcelain countries have designed drawings at the theoretical level, but because they do not have the processing power, this design can only stay at the drawing stage. However, they are all insiders. At a glance, we can see that these two propellers are in curvature, curve and precision Although I don't know what the performance of this product will be after it is launched into the water, the incomparable manufacturing process alone will make them excited!

Four experts watched in circles around two propellers. Some of them could not help shaking and stroking the smooth surface of the propeller. Some of them could not control their emotions. They kissed the cold surface of the propeller with tears in their excited eyes.

"Awesome!" A white haired old man said with tears in his eyes: "such a perfect manufacturing process, which I never dreamed of, has definitely surpassed any country in the world. No country in the world has the strength to manufacture such a perfect propeller. It's so powerful. It's really gratifying!"

"Old Qu!" A slightly younger middle-aged man was supporting the old man with tears. He said with tears in his eyes, "with this manufacturing technology, our submarine's actual combat ability will be greatly improved. Now you have finally achieved your wish!"

"More than that!"

The old man constantly shook his head and sighed: "my lifelong dream is to hope that the propeller technology of China submarine can reach the level of Ohio submarine in the United States. Even the early technology level of Ohio is enough, but what I didn't expect is that we now have such a powerful manufacturing process, and it's not just manufacturing process!"! Xiao Zhao, you