Technological Supremacy Chapter 247: Ultrasonic motors and brutal competition
As soon as Luo Jia finished speaking, there was an uproar at the scene.
Everyone can understand the development of permanent magnet vector motors. Many members of the brainstorming group who are familiar with motor technology have long expected that Luo Jia will challenge the apex of electromagnetic motors, permanent magnet vectors.
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 go back to more than a year ago. Tender inside and charred outside.
However, if you think about it carefully, this is also in line with Luo Jia's style. As the strength of Xingchen technology increases, 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.
Taking Karmen 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 Karmen 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 bad. Get it.
Luo Jia continued: "Permanent magnet vector motors and ultrasonic motors are two completely different technologies. There are objective reasons why I proposed 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 our country, which accounts for 70% of the world's rare earth reserves."
"So we have a strong foundation, if we don't have 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 Mr. Musk knew very well that permanent magnet motors are much more powerful than induction motors. , but he understands better that the permanent magnet material depends on the face of our country, and 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. Is the reason why he built a factory in China 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 waited until now is because he realized that the road of induction motors on electric vehicles There is no way to go, so you can only use permanent magnet motors, and permanent magnet motors need rare earths, and 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 to study permanent magnet materials that do not use rare earths. They are afraid that if our country does not supply rare earths someday, they will Will be stuck in the neck."
When Luo Jia spoke up to this point, everyone laughed lightly, and 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 few 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 materials NdFeB, they are all very elementary products. In the field of high-grade NdFeB, our technical strength is terrible, and the world's three largest high-grade NdFeB producers are all from Neon."
"Sumitomo Special Metals ranks first in the world, and the material NdFeB itself 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, NdFeB from Sumitomo Metals was also used.”
"This is the cold reality. Neon buys rare earths from us, manufactures them into high-end NdFeB, and 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 Can't make it."
"In my 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, 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 is absolutely indispensable. One day Sumitomo no longer supplies 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 of permanent magnet vector motor. 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 benefit."
Everyone nodded, the smiles in their eyes quickly disappeared, replaced by a look of determination and a strong sense of mission, especially the three principals of the company's material science, Ji Ming, Chao Anbang and Cao Yuan, they had already He straightened his back, 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 conversation and laughter, everyone quickly formed a strong consensus. They gathered closely beside the teacher and carried out what he arranged. of each task.
"The next step is the ultrasonic motor." Luo Jia continued: "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 the future In decades, no one can surpass us.”
"The frequency of sound that can be heard by human ears ranges from about 20 Hz to 20 kHz, and those exceeding 20 kHz are frequencies that cannot be recognized by human ears, and are called ultrasonic waves."
"What is an ultrasonic motor?"
"To put it simply, the piezoelectric material is used to deform the input voltage to make it 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 the ultrasonic motor. .”
"Unlike traditional motors, ultrasonic motors use electromagnetic cross-forces to obtain motion and torque. Ultrasonic motors use the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic vibrations to move, allowing microscopic deformation of materials, through mechanical Resonance amplification, coupled with frictional coupling, 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. Medium, such as vacuum, extremely 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 load-bearing and 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 ~IndoMTL.com~ and 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, MarsArmⅡ."
"Due to the advanced nature of the ultrasonic motor, the weight of the MarsArm II robotic arm has been reduced by a full 40%. You should understand that for aerospace technology, what does a 40% weight reduction mean? What."
With 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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