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

You can understand that permanent magnet vector motors are used. Many members of the brainstorming group who are familiar with motor technology have long expected that Luo Jia will challenge the permanent magnet vectors of electromagnetic motors.

But ultrasonic motors are completely different from all current motors. This is like abacus and computers. Both are computing tools, but they have generational gaps between them and are not the product of the same era at all.

Luo Jia's ambition shocked everyone again. They seemed to go back more than a year ago. When Luo Jia suddenly proposed to build power in Carmen vortex street, his huge idea made everyone feel so tender inside and outside.

But if you think about it carefully, this is also in line with Luo Jia's style. As the strength of Star Technology increases, Luo Jia's ambitions are getting bigger and bigger, and he begins to try to challenge the peak of Planet Technology.

What is Planet Technology?

It is the strongest technology that humans can achieve before entering the age of the Star Sea.

Taking Carmen vortex power generation as an example, it is the most powerful power generation technology besides nuclear fusion. Even if one day human beings really go to 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 for ultrasonic motors. If this technology is developed, it can benefit humans until many, many years later.

It is very difficult to implement this technology that achieves planet technology. Members of the Brainstorming Group also began to scratch their heads, feeling that this time it was troublesome. Ultrasonic motors are really hard to do.

Luo Jia continued: "Permanent magnet vector motor and ultrasonic motor are two completely different technologies. There are objective reasons why I proposed it at one time."

"First, let's look at permanent magnet vector motors. For permanent magnet materials, it requires a large amount of rare earths. Which country has more rare earths?"

"Of course it's our country, and our country's rare earth reserves account for 70% of the world."

"So we have strong basic conditions. If we don't need such good conditions, wouldn't we be fools?"

"Let's talk about Tesla. In the past few years, Tesla actually did not use permanent magnet motors, but used induction motors. Although Musk knew very well that permanent magnet motors were much more powerful than induction motors, he understood better that permanent magnet materials depend on our country's face. If he didn't sell them rare earths one day, his plan would 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 because he is interested in the development of my country's 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 was really willing, the factory would have been built long ago. The reason why he has been waiting until now is because he realized that the road to induction motors on electric vehicles is not accessible, and he can only use permanent magnet motors. Permanent magnet motors require 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 studying hard that they do not use rare earth permanent magnet materials, just because they are afraid that if our country does not supply rare earths one day, they will be choked."

When Luo Jia spoke this, everyone chuckled. It was still very encouraging to be able to stumble the foreigner's neck.

Although my country is large in land, its products are not abundant. Rare earths are one of the few upstream raw materials that we can control. Other precious metals such as copper, iron, lithium, and other precious metals need to be imported from the world.

The reason why Luo Jia is engaged in silicon negative electrode batteries rather than lithium negative electrodes is that he has no lithium mineral resources in my country.

At this moment, Luo Jia's story suddenly changed and said something that made everyone's smile solidify.

Luo Jia said lightly, "In this world, although my country accounts for 70% of rare earth resources and produces 80% of the permanent magnet material neodymium iron boron, they are all very basic products. In the field of advanced neodymium iron boron, our technical strength is terrible. The world's three major high-end neodymium iron boron manufacturers are all from Neon."

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

"The second in the world is Shintsuki Chemical, the third in TDK, and the fourth in Germany is Vac. These four companies dominate the global high-end neodymium iron boron field. Even our Carmen vortex power generation array uses neodymium iron boron produced from Sumitomo Metals."

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

"In my country, Zhongke Sanhuan, Zhenghai Magnetic Materials, and Ningbo Yunsheng are the three largest enterprises. The Sanhuan can produce 18,000 tons per year, and the other two companies have a production capacity of about 10,000 tons. Unfortunately, they were unable to provide the high-performance neodymium iron boron needed for the Carmen vortex street power generation array. At that time, due to the tight time and heavy tasks, they directly bought some of them with Sumitomo."

"Although we have made some achievements in recent years, we are still far from the final victory. Although the proportion of neodymium iron boron in the power generation array is not high, it must be missing. If Sumitomo no longer supplies us one day, the new energy plan will be interrupted."

"Fortunately, we have freed up our hands now and have enough time and personnel, so next, we will take advantage of the opportunity of developing permanent magnet vector motors to solve the problem of advanced neodymium iron boron."

"This is why we started the research on permanent magnet vector motors. The research and development of this project is not too difficult, and it can solve the important raw material problems of our fan array. It is a killing two birds with one stone."

Everyone nodded, and the smile in their eyes quickly disappeared, replaced by a look of perseverance and a strong sense of mission, especially the three leaders of the company's materials science, Ji Ming, Chao Anbang and Cao Yuan, who had already straightened their backs and were ready to go.

Shen Lang was shocked. He found that his teacher was really a speech genius. His logic was clear and rational. Everyone quickly formed a strong consensus between talking and laughing. They gathered closely by the teacher and performed every task he assigned.

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

"The frequency of sound that human ears can hear ranges from about 20 Hz to 20 kilohertz, and more than 20 kilohertz is a frequency that the human ear cannot recognize and is called ultrasound."

"What is an ultrasonic motor?"

"Simply put, using the piezoelectric material input voltage deformation to generate mechanical vibration of ultrasonic frequency, and then through friction-driven mechanical design, the ultrasonic motor is rotating or linearly moving like an electromagnetic motor, which is an ultrasonic motor."

"Ultrasonic motors do not use the crossing force of electromagnetics to obtain motion and torque, like traditional motors, which use the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic oscillation to move, allowing the microscopic deformation of the material to amplify through mechanical resonance, and coupled with friction coupling, to convert it into the movement of the rotor. Compared with electromagnetic motors, it uses piezoelectric ceramic material disks to replace complex copper coils and iron cores."

"This is a good thing. Ultrasonic motors respond quickly, control can be accurate to the nano level, no reduction gear is required, the appearance is smaller, the electromagnetic compatibility is good, and it is not disturbed by magnetic fields. It can also be used in various complex environments, such as vacuum, extremely high or extremely low temperatures, strong torque, and no noise."

"These superior characteristics are all combined in ultrasonic motors, giving them extraordinary usefulness. I call this thing space motors because it is a top technology that can be used from now on until the human space age!"

"In short, ultrasonic motors are of great significance, and our opponents are three main ones. The first is the North American Jet Propulsion Laboratory. They use ultrasonic linear motors in a crawler that detects damage to the space shuttle shell. It is said that its load-bearing and self-weight ratio can reach an astonishing 10 to 1."

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

"The last one is the famous Nasa. Although Nasa has never admitted it, according to rumors, their Mars rover uses a new generation of micro robotic arms built on ultrasonic motors, maarm2."

"Due to the advanced nature of ultrasonic motors, the weight of the maarm2 type robotic arm has been reduced by a full forty percent. You should understand what the weight loss of 40% means for aerospace technology."

With Luo Jia's introduction, everyone's expressions became serious.
Chapter completed!