In the locomotive assembly workshop, Ling Shizhe saw Chen Shanxin, the chief engineer of the motor laboratory, who was inspecting the spare parts of the high-power DC drive motor disassembled by the 240 locomotive one by one. Coke has updated the finale

Chen Shanxin had already seen Ling Shizhe, beckoned to him and said, "Chairman, come and see what this is?" ”

Ling Shizhe walked to the testing table, looked at the DC motor that was broken down into parts, and said, "Isn't it the DC drive motor of the 240 locomotive?" ”

"Take a closer look." Chen Shanxin said with a smile.

Damn, this old guy actually played a dumb riddle with me, just look at it, I want to see what kind of name he has made, take a closer look, when he found a few rectangular pieces of metal objects that are a bit like ceramics, he made a "huh" sound, looked up at Chen Shanxin who was smiling at him, remembered something in his heart, and then picked up a piece of metal from the side and approached one of the metal objects......

Boom! A loud and crisp sound sounded, the metal was firmly sucked on it, no matter how hard Ling Shizhe tried, he couldn't break it off, he was stunned for a long time, and suddenly shouted: "Damn, this is the "Magnetic King" You have successfully developed it, how did you do it in such a short time?" ”

"It's not me who did it, it's Feng Jianghua's credit, chairman, we have succeeded in NdFeB magnetic materials." Chen Shanxin said with tears in his eyes.

What is NdFeB? NdFeB is a permanent magnet material based on the intermetallic compound ND2Fe14B, which is simply a strong magnetic alloy composed of neodymium and iron oxide, also known as magnet. Compared with traditional permanent magnet materials, NdFeB has a very high magnetic energy product and coercivity, and can absorb weights equivalent to 640 times its own weight, so NdFeB can be described as a well-deserved "magnetic king". It is the most critical component of the rare earth permanent magnet synchronous motor, and the successful development of NdFeB magnetic materials has taken the most solid first step in the research and development of the third-generation high-speed train power traction system being developed by Ambrera.

It is with it that the rare earth permanent magnet power traction system will be possible.

Chen Shanxin is the chief engineer of the electrical laboratory, after joining Ambrera. The first scientific and technological achievement he contributed to the company was a variety of precision and efficient servo motors for CNC machine tools.

After the introduction of the 240 locomotive, he made a report to Ling Shizhe on the development of AC permanent magnet synchronous motors, especially the research and development of rare earth AC permanent magnet motors.

But the report was opposed by Navali. Navali argued; "Permanent magnet motors, especially rare earth permanent magnet motors, have simple structures and reliable operation; Small size and light weight; Low loss and high efficiency; The motors can be flexible in shape and size, and other significant advantages. However, the disadvantage of permanent magnet motor is also very obvious, that is, the environmental adaptability of permanent magnet motor is very poor, especially extremely sensitive to ambient temperature.

The operating environment of the train is extremely harsh, water, dust, iron filings, etc. can corrode the permanent magnet inside the motor, coupled with the AC permanent magnet synchronous motor power is too large, the heat is too high, the permanent magnet material in high temperature, vibration and reverse strong magnetic field and other conditions, may occur irreparable magnetic loss of serious risk. If the train loses magnetism at high speeds, the consequences will be unimaginable. Therefore, I believe that we should concentrate on the development of AC asynchronous drive motors, because this is the future development direction of electric locomotives. ”

And Chen Shanxin's report was won by John. Martin and Liu Ke'an, head of the materials laboratory. As well as the support of Jiang Zhihua, the head of the rare earth materials laboratory, their reason is that the AC asynchronous motor was born in 1885, which has a history of nearly 100 years, and Western companies have begun to study the AC asynchronous motor very early, and in the long history of nearly 100 years, they have already established a strong technical barrier for the AC asynchronous motor.

If we shift the center of gravity to the AC asynchronous motor, a bad one will fall into the patent trap carefully designed by Western companies, and we must bypass their crocheted technical barriers and establish a new set of AC asynchronous motor technical system. We're going to pay a huge price, and more importantly, time, we don't have enough time to keep up with the technological development of AC asynchronous motors, and I'm going to be catching up everywhere. And the situation of being controlled by others everywhere.

The permanent magnet motor is different, it will not be affected by patent barriers, especially the rare earth permanent magnet motor, which is a new type of permanent magnet motor that appeared in the early 70s, that is, in recent years, the West is still in a hazy stage of technology, which is for Ambrera company. Both sides are in the same stage of running together, if we focus on the research of rare earth permanent magnet motors now, we can occupy the commanding heights of rare earth permanent magnet motor technology one step earlier, and the working principle of rare earth permanent magnet motor is the same as that of electric excitation synchronous motor, with reliable operation; Small size and light weight; With the characteristics of low loss and high efficiency, it is possible to realize the technical problems of "small horse-drawn carts" on trains.

This has laid a solid technical foundation for the company's future development of high-speed electric locomotives, since the success of Japan's Shinkansen, the world's high-speed train power system has been divided into two kinds, one is the power centralized power design led by France using the front end and the most tail locomotive drive; One is that all trains in Japan are designed with distributed power. Of these two power designs, we believe that Japan's power decentralized design is the future development direction of high-speed trains.

The advantage of the decentralized design of train power is that the train is not only fast, but also stable and safe, and the Japanese Shinkansen has never had a fatal accident so far, and it is listed as the safest high-speed railway in the world by the world. On the other hand, the TGV high-speed train of the same kind in France, due to the centralized power design driven by the locomotive at the front and the end, the shaking is larger, the acceleration and deceleration are slower, and the train speed is slightly faster, its stability and safety will be greatly reduced.

From the data of electric locomotives in Europe, there is little difference in speed with Japan's high-speed trains, but because of the use of the front-end and tail-end locomotive-driven power centralized design, the actual speed of European high-speed trains is much lower than that of Japan's high-speed trains, and their high-speed trains do not dare to let go of Japan at all, because once the speed is released, the danger factor of train operation will increase significantly, and no official dares to do this. ”

The dispute between the two parties has its own reason, and the reasons are sufficient, and whether it is an AC asynchronous motor or a rare earth permanent magnet synchronous motor is the future development direction of electric locomotives, but Navali is concerned about the second-generation train traction system. Martin et al. are focusing on the third generation of train traction systems. This made Ling Shizhe embarrassed.

Technically speaking, AC asynchronous motors have been developed for nearly 100 years, and the technology has become very mature, so it is easier to implement. But the patent pool is a hurdle that cannot be bypassed, and it is in front of Ambrera Company, so that Ling Shizhe can only stand on the other side and look at it. Buy patents from them? Ling Shizhe shook his head, they were either resolute or put forward all kinds of unacceptable harsh demands. This is unacceptable to the arrogant Ling Shizhe in his heart.

Regardless? It is even more unlikely, Ambrera is not a Chinese company, there is the Chinese government to escort it, and there is a huge domestic market to support it, so you can not take the patents of Western companies seriously, but Ambrera is not good, Ling Shizhe wants to mix in the West, patents must be taken seriously, so the road of AC asynchronous motors. Fundamentally, it's blocked.

Development of rare earth permanent magnet synchronous motors? Although technically in the same running line with Western countries, but the technology involved in the permanent magnet synchronous motor is much more complex than the AC asynchronous motor, the most critical NdFeB magnetic material, is a huge roadblock, if this technical problem is not solved, the rare earth permanent magnet synchronous motor has a castle in the air.

What is NdFeB? NdFeB is a permanent magnet material based on the intermetallic compound ND2Fe14B, which is simply a strong magnetic alloy composed of neodymium and iron oxide, also known as magnet. Compared with traditional permanent magnet materials, NdFeB has an extremely high magnetic energy product and coercivity, and can lift weights equivalent to 640 times its own weight. Therefore, NdFeB can be described as a well-deserved "magnetic king".

Historically, China's third-generation high-speed train traction system was successfully developed because of the solution of NdFeB, a key material.

To do or not to do? At the beginning, Ling Shizhe thought about it repeatedly for a long time and did not make up his mind, and in the end, it was the persistence of Alison and Foster that made Ling Shizhe make up his mind to develop rare earth permanent magnet motors. Research and development of the third generation of train power traction system, that is, permanent magnet traction system.

The research and development task of NdFeB was handed over to Jiang Zhihua, who had just passed the year of establishment. Of course, in order to ensure the smooth progress of the project, Ling Shizhe also opened a golden finger.

NdFeB was born in 1982, by Japan's Sumitomo Special Metals Sagawa Mato accidentally, after testing found that the magnetic energy product (BHMAX) of this magnet is greater than that of samarium cobalt magnets. It was the substance with the largest magnetic energy product in the world at that time. As a result, Sumitomo Special Metals began to develop NdFeB magnetic materials, and soon succeeded in preparing NdFeB magnetic materials by powder metallurgy.

In 1994, General Motors of the United States developed a rotary jet smelting process, successfully prepared the technology of NdFeB magnets, marking the maturity of NdFeB magnet preparation technology, since then the world's strongest magnetic permanent magnet began to go to the market, and has been widely used in military, medical equipment, high-speed trains, electronics, electrical machinery, toys, packaging, hardware machinery, aerospace and other fields.

Therefore, NdFeB has a huge market prospect.

NdFeB is divided into sintered NdFeB and bonded NdFeB, no matter which one is NdFeB, the world is prepared in accordance with the General Motors Rotary Jet Smelting Method, so Ling Shizhe handed over this set of process preparation methods to Jiang Zhihua, of course, Ling Shizhe gave him only simple process principles and processes, as well as the related equipment used, and the rest of the scientific research team led by Jiang Zhihua to complete it themselves.

Ling Shizhe originally thought that even if he pointed out the direction to Jiang Zhihua, it would take three or five years to succeed, but he didn't expect it to succeed in less than a year, which made Ling Shizhe startled, wouldn't it be an experiment?

So he picked up the magnifying glass and looked at a few pieces of NdFeB on the testing table one by one, and only after a long time did he turn the magnifying glass and said to himself: "It's not an experimental product, it's a real industrial product, but I didn't expect this hard bone to be captured by them in such a short period of time." ”

"Lao Chen, what about Jiang Zhihua? Call him over, and I'll ask them how they managed to overcome this technical hurdle in such a short period of time. Ling Shizhe knows too well how huge and difficult this technology is, and Jiang Zhihua can develop it in such a short period of time, and it is not something that can be solved simply by enduring hardship.

An assistant of Chen Shanxin called Jiang Zhihua over, and after listening to Ling Shizhe's question, he smiled slightly and said: "Actually, when I was working in the Siemens Materials Laboratory in Germany, I theoretically discovered that it is possible to prepare the world's most magnetic magnet if you mix financial materials such as Ru, iron oxide, and boron. When I made this theoretical discovery, I applied to Siemens for research funding in this area, but I didn't expect to be rejected by them because of my skin color, so I could only continue to do theoretical research.

Later, after jumping to Ambrera, the chairman decided to develop NdFeB, and gave me so much relevant information, so my years of theoretical research came in handy, and even I didn't expect that NdFeB would be studied so quickly. ”

Ling Shizhe was really mixed after hearing this, the worry was that the Chinese at this time were discriminated against wherever they went, and the good thing was that it was the discrimination against the Chinese in those Western countries that Ling Shizhe was able to recruit so many outstanding overseas Chinese talents, and it was with their hard work that Ambrera Company could come to this day step by step.

Because Ling Shizhe himself is Chinese, plus the principle of fair competition that he has been preaching, Ambrera Company does not have the glass ceiling problem of Western companies fucking up, and the Chinese people in the company have not been discriminated against in any way, so over the years, Ambrera Company has recruited a lot of talents and left a lot of talents, but only the Chinese did not choose to leave, almost all of them stayed.

If who is the foundation of Ambrera Company, it is not the high-tech mastery, not those foreigners, and not him Ling Shizhe, but Chinese scientists like Jiang Zhihua, Chen Shanxin, Zhou Yuanhang, Wang Yuanzhuo are the foundation of Ambrera Company, as long as they are there, Ambrera Company will not fall.

Ling Shizhe will not worry that they will be poached by other companies, because they have already seen the faces of Western companies clearly, so they will not leave in a dizzy.

The only worry is the country, the mainland is about to reform and open up, at that time the mainland will send an invitation to these Chinese scientists working overseas, hoping that they will return to China to engage in research, with the memory of Ling Shizhe's previous life, in the early days after the end of the Cultural Revolution, there are still a considerable number of Chinese scientists still choose to return to China, the scale is no less than the 50s, if the Chinese scientists in Ambrera leave and return to China on a large scale, it will be a disaster for Ling Shizhe.

Although most of them have left after a few years since they went back, the losses caused to the company in these years are irreparable, and it seems that they still have to find another way to keep them completely. Of course, it is the equity and options that motivate, people are always interest animals, no matter how beautiful you blow the doctrine, in the face of the reality of life, people will automatically choose the most beneficial decision for themselves.

In a word: ideals, but still can't be eaten. Allotment of shares, after going back, they will be allocated, and it is also an A5 priority.

Ling Shizhe secretly made a decision in his heart, no matter what, he wanted to keep these outstanding Chinese scientists. (To be continued.) )