Lead
At present, the global semiconductor industry is slightly hot, and the mainland's position in the semiconductor field is also growing rapidly.
The author believes that the upgrading of the semiconductor field will have a far-reaching impact on the global industry, and will also have a huge role in promoting the development of the mainland.
The protection and support of the semiconductor industry is also a step up to our country to follow the footsteps of the world and actively promote the development of 5G, 6G and other technologies.
At the same time, in terms of chip manufacturing, the mainland is also constantly catching up and making the mainland's chip industry bigger and stronger.
At the same time, it continues to gain recognition around the world.
With its advantages in the field of semiconductors, Continental will continue to promote the development of a new generation of power batteries.
This will also take the semiconductor industry to the next level.
While the semiconductor industry in mainland China continues to develop, the world's major well-known automobile manufacturers have also begun to pay attention to the development of this field.
With the vigorous development of the semiconductor industry and the continuous attention of the public around the world, electric vehicles have also significantly improved their performance and range after decades of development.
However, in terms of the use of rare earth motors, it has become a bottleneck for the development of electric vehicles, which undoubtedly has a negative impact on the development of electric vehicles.
But after local electric vehicle manufacturers see Tesla moving away from rare earth motors, will mainland electric vehicle manufacturers have a sense of crisis?
Why do electric vehicles use rare earth materials?
In terms of electric vehicles, they have advantages that other types of cars cannot have, and they are also the advantages of electric vehicles in the market.
In terms of motors, the difference between electric vehicles and fuel vehicles can be said to be diametrically opposed.
In the process of use, fuel vehicles will produce exhaust gases, which will cause irreversible damage to the atmospheric environment, while electric vehicles will not produce toxic and harmful gases such as carbon monoxide and sulfide.
At the same time, there is no engine noise generated during the driving process of electric vehicles, which reduces environmental noise pollution.
The frame, body and interior materials of electric vehicles can be recycled to protect the environment.
When the mileage of the electric vehicle is within the mileage of the fuel vehicle, the electric vehicle is also more protective of the environment, and the electric vehicle can be reused and consumes less petroleum resources.
Therefore, electric vehicles are more in line with everyone's understanding of environmental protection in public transportation, and are more popular with the public.
In the motor used in electric vehicles, due to the high frequency of rotation, and the need to resist the mutual repulsion and mutual attraction between the two magnetic fields, the material requirements of the motor are very high, rare earth elements are a class of rare and not very rich elements in the earth's crust, and the rare earth metals commonly used are cerium, praseodymium, neodymium, promethium, dysprosium, samarium, etc.
At the same time, rare earth plays a very important role in the motor, the mechanical properties of rare earth can play a very good role, and at the same time, rare earth can also improve the efficiency of the motor, reduce the volume and weight of the motor.
When an electric motor works by creating a magnetic field, it needs to rely on an electric current to do so, and rare earths can exert electrical properties, and rare earths can obtain a stronger magnetic field than other materials of the same weight.
At the same time, rare earths can ensure that the motor can still work under other materials and temperatures.
The element that accounts for 70% of the rare earth in the motor is NdFeB, and the index of NdFeB on the magnetic field is very high, as the raw material of the motor magnet, it has a certain damping, which can suppress the vibration of the motor.
Tesla's motors completely abandon rare earths.
On the road of scientific and technological development, some industries will gradually be eliminated with the opening up of technology, while some industries will gradually develop and prosper.
Magnets are used in Tesla's motors, and the use of magnets has injected strong impetus into Tesla's development.
In the rare earth metals of magnets, NdFeB, cobalt-iron, Alniccobalt, iron-silicon-aluminum, etc., are mainly used, and in NdFeB magnets, it is the largest use of rare earths.
At the same time, NdFeB can also reduce the working noise of the motor and reduce the coupling phenomenon of the motor.
And NdFeB is very good in the use environment, which can meet the needs of the motor.
In addition, the noise generated by NdFeB during the use of NdFeB will not be harmful to human internal organs, vision and hearing.
Because Tesla used a large amount of rare earth metals to produce electric motors, the price of rare earths gradually increased after a while.
And Tesla had to start thinking about replacing it with a cheaper material for the production of electric motors.
The substitution of rare earths is a flaw in the technology.
NdFeB materials are not only used in motors of electric vehicles, but also in motors of power tools, and with the gradual increase in the price of rare earths, the price of production using rare earth materials is very expensive.
Therefore, in 2018, Tesla announced that it will gradually stop using rare earth magnets in the next few years, using magnetic magnets, the cost of magnetic magnets is not only cheaper than rare earth magnets, but also in the technology is more mature at the same time, it can greatly reduce the energy consumption of the motor, and at the same time can greatly improve the efficiency of the motor, and the magnetic properties of the magnetic magnet are also more stable, so that the service life of the motor can be greatly improved.
Tesla will also replace rare earth motors with magnetic steel motors, which is also an upgrade of Tesla's motors.
Semiconductor development in China.
In the eyes of many Tesla fans, Tesla's electric cars are a major threat to China's electric vehicle manufacturers, and Tesla began to build a gigafactory in China in 2014 in order to make more money in China.
But the move has also made some of the red-flag car makers who have been known for their strength in the mainland worried, even anxious.
Moreover, on the basis of Tesla's construction of the Gigafactory, it will also introduce advanced production technology, which will greatly improve the production capacity of Tesla cars, and there are a large number of excellent employees.
As soon as the news of Tesla's factory came out, it immediately set off huge waves in the mainland, Tesla will bring leading technology at the same time, it will also bring more fierce market competition, so Tesla will pose a more serious threat among mainland car companies.
And Tesla's development in the mainland is gradually growing.
In order to achieve greater development in China, Tesla is also constantly chasing the development of the mainland in terms of policies and legislation, and at the same time, Tesla is also constantly applying for localization, so the mainland's Hongqi and other car manufacturers are also feeling the threat of Tesla.
And a number of electric vehicle manufacturers in the mainland are even more anxious about Tesla's development in semiconductors.
Because semiconductors are a very important part of electric vehicles, and they are also an important area to get rid of the use of rare earth motors, and Tesla can form a new technology in the field of semiconductors, which will inevitably have a negative impact on electric vehicle manufacturers in the mainland.
epilogue
Tesla's start of development in semiconductors will have a subversive impact on the mainland's semiconductor industry, so mainland electric vehicle manufacturers should be more vigilant and cautious about the rise of Tesla.
And in the field of semiconductors, the mainland is also in such a good development environment, forming an innovation ecology, and the mainland's industrial system is also gradually improving under the drive of this atmosphere.
The upgrade of semiconductors will have far-reaching implications.