Technological Hegemony

As soon as Luo Jia finished speaking, there was an uproar at the scene.

Everyone can understand the permanent magnet vector motor. Many members of the brainstorming group who are familiar with motor technology have long expected that Luo Jia will challenge the apex of the electromagnetic motor, the permanent magnet vector.

But the ultrasonic motor is completely different from all current motors. It is like an abacus and a computer. Both are computing tools, but there is a generational gap between them, and they are not a product of the same era at all.

Luo Jia's ambition shocked everyone once again. They seemed to have returned to more than a year ago. When Luo Jia suddenly proposed to build Karmen vortex street power generation, his huge idea shocked everyone. coke.

But thinking about it carefully, this is also in line with Luo Jia's style. With the enhancement of Xingchen's technological strength, Luo Jia's ambitions are also becoming bigger and bigger. He began to try to challenge the pinnacle of planetary technology.

What is planetary technology?

It is the strongest technology that human beings can achieve before entering the era of stars and seas.

Take Karman vortex street power generation as an example. It is the best power generation technology other than nuclear fusion. Even if one day, human beings really go to the sea of ​​stars, the Karman vortex street power generation technology will still not be eliminated and can still be applied in many fields.

The same is true for ultrasonic motors. If this technology is developed, it will benefit mankind until many, many years later.

This kind of technology that has reached the pinnacle of planetary technology is very difficult to realize. The members of the brainstorming group also started to scratch their heads. They feel that this time is troublesome. Ultrasonic motors are really difficult to handle.

Luo Jia continued: "Permanent magnet vector motor and ultrasonic motor are two completely different technologies. There are objective reasons why I propose them at once."

"First of all, let's look at the permanent magnet vector motor. The permanent magnet material needs to consume a lot of rare earths, and which country has more rare earths?"

"Of course it is my country. my country's rare earth reserves account for 70% of the world."

"So we have a strong foundation, and if we don't use such good conditions, wouldn't we be fools?"

"Let's talk back to Tesla. In the past few years, Tesla actually didn't use permanent magnet motors, but used induction motors. Although Musk knew very well that permanent magnet motors are much more powerful than induction motors, he More clearly, the permanent magnet material depends on the face of our country. If he does not sell rare earths to them one day, his plan will be ruined.

"

"Everyone knows that Musk has built a large factory in Shanghai to produce electric vehicles. The reason why he built a factory in China is really because he likes my country's developed infrastructure and relatively high production efficiency?"

"The answer is no. my country's industrial efficiency is high, and the whole world knows that if he really wanted to, the factory would have been built a long time ago. The reason why he has waited until now is because he realized that the road of induction motors in electric vehicles will not work. Yes, only permanent magnet motors, and permanent magnet motors need rare earths, we have rare earths, so he came."

"There is another interesting story about neon. It is said that over the years, they have been working hard on permanent magnet materials that do not use rare earths. They are afraid that if our country does not supply rare earths one day, they will be stuck. neck."

When Luo Jia spoke up to this point, everyone laughed lightly. Being able to pinch a foreigner's neck would boost everyone's morale.

Although our country is large, its products are not rich. Rare earths are one of the few upstream raw materials that we can control. The rest of copper, iron, lithium, and other precious metals need to be imported from all over the world.

The reason why Luo Jia engages in silicon anode batteries instead of lithium anodes is the concern that there are no lithium resources in my country.

At this moment, Luo Jia suddenly changed the subject and said something that made everyone's smile freeze.

Luo Jia said lightly, "In this world, although my country has 70% of the rare earth resources and produces 80% of the permanent magnet material NdFeB, they are all very elementary products. In the field of iron and boron, our technical strength is terrible, and the world's three major high-grade NdFeB producers all come from Neon."

"The world's number one is Sumitomo Special Metals, and the material itself, NdFeB, was discovered by Masato Sagawa, a researcher at Sumitomo Special Metals, in 1982."

"Shin-Etsu Chemical ranks second in the world, TDK ranks third, and Germany VAC ranks fourth. These four companies dominate the global high-end NdFeB field. Even our Karman vortex street power generation array uses NdFeB produced by Sumitomo Metal.”

"This is the cold reality. Neon buys rare earths from us, manufactures them into high-end NdFeB, and then sells them back to us, making a lot of money from it. Then why don't we make them ourselves? It's very simple, because we can't make them. .”

"In our country, Zhongke Sanhuan, Zhenghai Magnetic Materials, and Ningbo Yunsheng are the three companies with the largest output. Sanhuan can produce 18,000 tons per year, and the other two have a production capacity of about 10,000 tons. Unfortunately, They were unable to provide the high-performance NdFeB needed for the Karman vortex street power generation array. At that time, due to the tight schedule and heavy tasks, they directly bought some from Sumitomo.”

"Although we have made some achievements in the past few years, we are still far from the final victory. Although the proportion of NdFeB materials in the power generation array is not high, it must not be missing. Sumitomo will no longer supply us, and the new energy plan will be interrupted."

"Fortunately, we have now freed up our hands and have enough time and people, so next, we will take the opportunity of developing the permanent magnet vector motor to solve the problem of advanced NdFeB."

"This is the reason why we started the research on permanent magnet vector motors. The research and development difficulty of this project is not too high, and it can solve the important raw material problem of our fan array. It is a double win."

Everyone nodded, the smiles in their eyes quickly disappeared, replaced by a look of determination and a strong sense of mission, especially the three heads of the company's material science, Ji Ming, Chao Anbang and Cao Yuan, they had already stood up straight Waist, gearing up secretly.

Shen Lang was stunned. He found that his teacher was really a gifted speaker. His logic was clear and rational. During the chatter and laughter, everyone quickly formed a strong consensus. They gathered closely around the teacher and carried out every task he arranged. task.

"The next step is the ultrasonic motor." Luo Jia continued: "The permanent magnet vector motor is the strongest motor technology under the current technological conditions, but this is not enough. We still need to study the next generation of motor products to ensure that in the next few decades , no one can surpass us.”

"The frequency of sound that can be heard by the human ear ranges from about 20 Hz to 20 kHz, and those exceeding 20 kHz are frequencies that cannot be recognized by the human ear and are called ultrasound."

"Then what is an ultrasonic motor?"

"To put it simply, the piezoelectric material is used to deform the input voltage to generate mechanical vibration at ultrasonic frequency, and then through the mechanical design of friction drive, the ultrasonic motor can rotate or linearly move like an electromagnetic motor, which is an ultrasonic motor."

"Unlike traditional motors, ultrasonic motors use electromagnetic cross force to obtain motion and torque. Ultrasonic motors use the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic vibrations to move, allowing the microscopic deformation of materials to be amplified through mechanical resonance. Coupled with friction coupling, it is converted into the motion of the rotor. Compared with electromagnetic motors, it uses piezoelectric ceramic material disks instead of complex copper coils and iron cores."

"This is a good thing. The ultrasonic motor responds quickly, and the control can be accurate to the nanometer level. It does not require reduction gears. It has a smaller shape, good electromagnetic compatibility, and is not subject to magnetic field interference. It can also be used in various complex environments, such as Vacuum, very high or low temperature, strong torque, no noise."

"These superior characteristics are all integrated on the ultrasonic motor, which makes it have extraordinary use value. I call this thing a space motor, because it is a top-level technology that can be used from now until the human space age!"

"All in all, ultrasonic motors are of great significance, and we have three main opponents. The first is the North American Jet Propulsion Laboratory. They use ultrasonic linear motors in a crawler that detects damage to the outer shell of the space shuttle. It is said that its The load-bearing to self-weight ratio can reach an astonishing ten to one."

"The second is the Neon Universe Research Institute. They have two types of ultrasonic linear motors, which are used in the satellite field. They are also purchased by North America and Germany and used as precision measuring devices in the missile field."

"The last one is the well-known NASA. Although NASA has never admitted it, according to rumors, their Mars rover uses a new generation of micro-manipulator arms based on ultrasonic motors, Mars Arm II."

"Due to the advanced nature of the ultrasonic motor, the weight of the Mars Arm II robotic arm has been reduced by a full 40%. You should understand what a 40% weight reduction means for aerospace technology. "

Following Luo Jia's introduction, everyone's expressions became serious.

NASA, the world's largest black technology concentration camp, has used ultrasonic motors on Mars probes, which is by no means good news.

. Nine Heavens Emperor

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