Chapter 247: Ultrasonic motors and brutal competition

Luo Jia's words just ended, and the scene was uproar.
We can understand that for permanent magnet vector motors, many members of the brainstorming team who are familiar with motor technology have long expected that Luo Jia will challenge the apex of electromagnetic motors, permanent magnet vector.
However, the ultrasonic motor is completely different from all the current motors. This is like an abacus and a computer. Both are computing tools, but they have a generational gap with each other. They are not the products of an era at all.
Luo Jia's ambitiousness once again shocked everyone. They seemed to be back more than a year ago. Luo Jia suddenly proposed that when he wanted to engage in Carmen Vortex Street power generation, his huge vision put all the people inside Lei Linen outside. focal.
However, if you think about it, it is also in line with Luo Jia's style. With the strengthening of the strength of Star Technology, Luo Jia's ambition is also getting bigger and bigger, he began to try to challenge the pinnacle of Planet Technology.
What is Planet Technology?
It is the strongest technology that human beings can reach before entering the age of stars and seas.
Take Carmen Vortex Power Generation as an example. That is the most powerful power generation technology outside nuclear fusion. Even if one day, human beings are really moving towards the sea of ​​stars, Carmen Vortex Power Generation technology will not be eliminated and can still be applied in many fields.
The same is true of ultrasonic motors. If this technology is developed, it can benefit human beings until many, many years later.
This technology that reaches the apex of the planet technology is difficult to achieve. Members who are as strong as brainstorming groups also start to scratch their heads. I feel trouble this time. The ultrasonic motor is really not easy to get rid of.
Luo Jia continued: "Permanent magnetic vector motors and ultrasonic motors are two completely different technologies, and I have put them up for one objective reason."
"First of all, let's look at the permanent magnet vector motor. For the permanent magnet material, it needs to consume a lot of rare earth, and which country has more rare earth?"
"Of course it is China. China's rare earth reserves account for 70% of the world."
"So we have very strong basic conditions and we don't have to have such good conditions. Isn't that a fool?"
"Let's say back to Tesla. In the past few years, Tesla actually did not use permanent magnet motors, but used induction motors. Although Musk classmates know very well that permanent magnet motors are much stronger than induction motors, but he It is even more clear that the thing of permanent magnet materials depends on the face of our country. If one does not sell them rare earths, his plan will be lost. "
"Everyone knows that Musk has built a large factory in Shanghai to produce electric cars. The reason why he set up a factory in Huaxia is because he is fancy in China's developed infrastructure and high production efficiency?"
"The answer is no. China's industrial efficiency is high. The whole world knows that if he really wanted to, the factory had already been built. The reason why he has waited until now is that he realizes that the road of induction motors in electric cars is inaccessible. Yes, only permanent magnet motors can be used, 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 to study, and do not use rare earth permanent magnet materials, they are afraid of our country in case one day, if they do not supply rare earth, they will get stuck. neck."
Luo Jia said here, everyone chuckled, being able to click on the neck of the foreigner, still very morale.
Although China has a large land, its products are not abundant. Rare earths are one of the few upstream raw materials that we can control. The remaining precious metals such as copper, iron, lithium, and so on, need to be imported from the world.
The reason why Luo Jia engages in silicon anode batteries instead of lithium anodes includes concerns about China's lack of lithium ore resources.
At that moment, Luo Jiafeng suddenly turned around and said something that made everyone smile and freeze.
Luo Jia said lightly, "In this world, although China holds 70% of rare earth resources and produces 80% of permanent magnet materials NdFeB, they are very basic products. In the field of iron and boron, our technical strength is unbearable. All three of the world's top three manufacturers of advanced neodymium iron boron are from Neon. "
"The number one in the world is Sumitomo Special Metals, and the material itself, Neodymium Iron Boron, was discovered by Sumitomo Special Metals Researcher Sagawa in 1982."
"Shin-Etsu Chemical is ranked second in the world, TDK is ranked third, and VAC is ranked fourth in Germany. These four companies dominate the global high-end neodymium-iron-boron field, and even our Carmen Vortex Power Array also uses Neodymium iron boron from Sumitomo Metal. "
"This is the cold reality. Neon buys rare earths from us, manufactures them into high-end neodymium iron boron, and sells them back to us, making a lot of money from it. Then why don't we make it ourselves, it's very simple, because it can't . "
"In terms of China, Zhongke Sanhuan, Zhenghai Magnetic Materials, and Ningbo Yunsheng are the three largest enterprises. Sanhuan can produce 18,000 tons per year, and the other two have a capacity of about 10,000 tons. Unfortunately, They could not provide the Carmen Vortex Street power generation array, which required high-performance neodymium-iron-boron. At that time, due to time constraints and heavy tasks, they directly asked Sumitomo to buy some. "
"Although we have made some achievements in recent years, we are still far from the final victory. Although the proportion of NdFeB material in the power generation array is not high, it must be indispensable. Sumitomo will no longer supply us and the new energy plan will be interrupted. "
"Fortunately, we have made our hand now, and we have enough time and talent, so next, we will take the opportunity of developing a permanent magnet vector motor to solve the problem of advanced NdFeB."
"This is why the research on permanent magnet vector motors started. The development of this project is not too difficult, and it can solve the important raw material problems of our fan arrays. It is two birds with one stone."
Everyone nodded, and the smile in their eyes quickly disappeared, replaced by a determined look and a strong sense of mission, especially the three principals of the company's materials science, Ji Ming, Chao Anbang and Cao Yuan, they have already stood upright Waist, rubbing his hands in secret.
Shen Lang was stunned. He found that his teacher was really a speech genius. His logic was clear and sensible. Between laughing and talking, everyone quickly formed a strong consensus, gathered tightly next to the teacher, and executed every arrangement he arranged. Tasks.
"Next is the ultrasonic motor." Luo Jia continued: "The permanent magnet vector motor is the strongest motor technology under current scientific and technological conditions, but this is not enough. We also 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 more than 20 kHz is a frequency that cannot be recognized by the human ear and is called ultrasound."
"So what is an ultrasonic motor?"
"Simply put, using piezoelectric materials to deform the input voltage to generate mechanical vibrations at ultrasonic frequencies, and then using friction-driven mechanical design to make ultrasonic motors rotate or linearly behave like electromagnetic motors."
"Ultrasonic motors, unlike traditional 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 the microscopic deformation of materials to be amplified by mechanical resonance. Coupled with friction coupling, which translates into rotor motion, it uses piezoelectric ceramic discs instead of complex copper coils and iron cores compared to electromagnetic motors. "
"This is a good thing. The ultrasonic motor responds quickly, the control can be accurate to the nanometer level, no reduction gear is needed, the shape is smaller, the electromagnetic compatibility is good, it is not affected by magnetic fields, and it can be used in various complex environments, such as Vacuum, extremely high or low temperatures, strong torque and no noise. "
"All these superior characteristics are gathered in the ultrasonic motor, which makes it have extraordinary use value. I call this thing a space motor, because it is a top technology that can be used from now to the human space age!"
"In summary, ultrasonic motors are extremely significant, 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 a space shuttle. It is said that its The weight-to-weight ratio can reach a staggering ten to one. "
"The second is the Neon Universe Institute. They have two types of ultrasonic linear motors, which are used in the satellite field ~ EbookFREE.me ~ and also purchased by North America and Germany as precision measuring devices in the field of missiles."
"The last one is the well-known NASA. Although NASA has never acknowledged it, according to rumors in the field, their Mars probe uses a new-generation miniature robotic arm based on ultrasonic motors, MarsArmⅡ."
"Due to the advanced nature of ultrasonic motors, the weight of MarsArm II robotic arms has been reduced by a full forty percent. You should understand what it means for aerospace technology to reduce weight by 40 percent."
With Luo Jia's introduction, everyone's expression became serious.
NASA, the world's largest black technology concentration camp, has used ultrasonic motors on Mars probes. This is by no means good news.
. Emperor Jiutian
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