The convoy slowly entered the Tangfeng battery factory.

Tang Fenghua has been waiting inside for a long time.

Wang Buan got out of the car.

He was followed by a man. Ancient city clouds.

There is also a car in the back.

After the car was parked, a heroic woman got down. It was Huang Ruoxi.

Behind her was naturally the inseparable assistant Chu Yulan.

Another inseparable is the driver Fluttershy.

The matter of Tangfeng battery factory has been delayed for more than a month, and it is time to solve it completely.

Wang Buan is preparing to transform it into an electric motor manufacturing plant.

"Uncle Tang!"

"You're here!"

After a brief greeting, the group entered the hall and sat down.

It is said that it is a hall, but it is actually very empty.

There are no facilities at all.

The original machinery and equipment were all moved away by Tang Fenghua's children.

The current Tangfeng battery factory is only an empty shell. Wang Buan bought it and put it under his own name. It has nothing to do with Tang Fenghua.

However, he still hired Tang Fenghua as the deputy factory director, responsible for daily management.

The real factory director is Guchengyun.

Guchengyun is a veritable MIT graduate.

Knowing that Wang Buan wanted to intervene in the motor market, he immediately automatically asked Ying to take the initiative to serve as a technical supervisor.

For electric motors, Guchengyun is very familiar. His initial goal was actually the electric motor market. It's just that too much money was needed later, and there was no way to raise it, so I had to temporarily intervene in the bearing industry. I wanted to make a little money through the bearing industry, and then get involved in the motor market. Unexpectedly, it was planted in the bearing industry.

"Xiao Wang, did you still decide to make an electric motor?"

"Yes. ”

"You really don't want to be a battery anymore?"

"I want to make electric motors. ”

"Okay. ”

Tang Fenghua had no objection.

This is also to be expected.

Wang Buan is a person who will not change his mind easily.

Since he is going to decide to make an electric motor, he must be to make an electric motor.

Although, Tang Fenghua always feels that Wang Buan seems to be a bit of a ticket nature. The market he focuses on seems to be different from what everyone else is concerned about.

The market that others pay attention to is mainly about making money. Preferably full-fledged, large-scale production.

However, Wang Bu'an is concerned about various non-standard motors.

He's obviously going to be specialized!

The market for non-standard motors is actually very narrow.

The vast majority of motors have standard parameters and standard performance, and will not be easily changed.

Because all kinds of machinery supporting the motor are designed in accordance with the standard. If your motor parameters are not standard, it will affect the effect of matching. No one else can evaluate the specific role of your electric motor. It can be said that he has blocked his way into the market.

Why did Wang Buan do this?

What exactly is his goal?

Is it to make money?

Is it the development of technology?

Or is it really a ticket?

It wasn't until Guchengyun appeared that Tang Fenghua's mind changed. This ancient city cloud is very knowledgeable. Someone else is a professional.

In a few words, it goes directly to the technical link.

The main components of the motor are the stator, rotor, bearing, and coil.

The raw materials are mainly hard alloys, high-temperature corrosion-resistant alloys, high-magnetic induction oriented silicon steel, high-performance copper alloys, etc.

All electric motors, basically the same structure.

The only difference is quality.

The basic principle of an electric motor is to convert electrical energy into mechanical energy.

Among them, it involves the key knowledge of physics: electromagnetism.

No matter what kind of motor it is, the principle of its application is the same. It's all about getting it to the limit.

With the development of the times, the application of electrical energy is more and more extensive. The vast majority of mechanical energy is derived from electrical energy. In China, the electric energy consumed by electric motors accounts for 60% of the country's electricity consumption and more than 80% of industrial electricity consumption. However, the market share of high-efficiency motors is always low. Only about 10%-20%.

In other words, the vast majority of the high-efficiency motor market is dominated by foreigners.

The average efficiency of small and medium-sized motors in China is about 87%, while the international advanced level is more than 92%.

Some institutions have calculated that if the efficiency of all motors is increased by 5%, the annual electricity saving can reach 76.5 billion kWh, which is close to the annual power generation of the Three Gorges Power Station. Therefore, the development space of energy-saving (high-efficiency) motor industry is large and demanding.

The quality of the motor is nothing more than several aspects: stability, reliability, efficiency, and life.

It looks very simple, but it's not easy to do.

Especially many small three-phase motors.

Except for the big brands, the others are basically very inefficient.

Some small three-phase motors have an efficiency of less than 80%. In other words, if you input 10 kilowatt-hours of electricity, 2 kilowatt-hours of electricity will be wasted.

However, in the national market, the number of small three-phase motors is the largest. One can imagine how serious this waste is. It can be said that about 10% of the country's annual power generation is wasted by electric motors. From the perspective of energy conservation and emission reduction, it is urgent to improve the efficiency of electric motors.

Of course, these things have nothing to do with Wang Bu'an for the time being.

He doesn't want to grab the low-end market.

Even, he doesn't want to occupy the market in large quantities.

What he wants to do is the highest-end, the most powerful, the most efficient motor.

At the same time, it is also to make the most efficient and powerful generator.

The motor and the generator are actually in the same vein.

The difference is that one converts electrical energy into mechanical energy. The other is to convert mechanical energy into electrical energy.

All-electric propulsion requires two conversions.

The first, converts the mechanical energy of the engine into electrical energy.

The second, converts electrical energy into mechanical energy. in order to propel the propeller forward.

These are two processes.

In the first process, the efficiency may only be about 85%.

In the second process, the efficiency may only be about 85%.

Then, when the two processes are combined, the efficiency may only be about 85%X85%=72%.

Obviously, in both cases, the loss of energy is very severe.

It is necessary to make each process as efficient as possible.

The problem is that high-power electric motors, or generators, are not very efficient.

Subject to raw materials or manufacturing processes, it can reach more than 85%, which is already relatively good. The efficiency of some ultra-high-power motors is not even 80%.

Generally speaking, the common motors on the market have a power of less than 1000K. The highest is around 3000K.

If it exceeds this value, it needs to be customized. It will not be offered to the public.

The output of 10,000 horsepower requires an 8000K electric motor.

The output of 20,000 horsepower requires a 16,000K electric motor.

In addition to power, there is also stability, reliability, longevity, and so on.

In many ways, there's room to delve into.

Thousands of high-rise buildings rise from the ground.

What Wang Bu'an has to do now is to lay the foundation.

First of all, the working principle and manufacturing process of the motor are thoroughly understood, and then the rise layer by layer gradually increases the power.

Of course, electric motors can't be artificially produced.

Must be mechanical equipment.

Soon after Wang Bu'an's arrival, several brand-new Handong 0742 machine tools also arrived.

It is the main function, which is the coil that winds the motor.

Its own working motor needs to be transformed and upgraded.

The spindle transmission of early CNC machine tools all adopts the structure of three-phase asynchronous motor and multi-stage gearbox. With the continuous development of technology, the structure of the machine tool has been greatly improved, which puts forward new requirements for the spindle system, at present, more DC spindle drive system and AC spindle drive system are used, the feeding system uses stepper motor, and the tool table movement of CNC lathe mainly relies on the rotation of the lead screw, and the stepper motor is connected to the XZ axis screw.

How to do this control motor? I can only rely on manual work.

Wang Buan silently started the milling machine and made the stator and rotor first. Then it is matched with the bearing.

It's really a step-by-step start.

Tang Fenghua's eyes lit up slightly.

There's nothing technical about it. But the quality is good.

Do you feel like you can live more than 100,000 hours?

The life of the motor used today is about 4-100,000 hours. Some good quality motors will have corresponding technologies, such as oil-free lubrication, sealed bearings, with overheat protection, and the commutator life is significantly improved. Compared with AC motors, DC motors have the characteristics of a fairly high failure rate, and the service life of DC motors can be directly determined by the quality of maintenance.

How long does the life of an electric motor used on a warship or an electric motor used in a shield machine last?

100,000 hours of working time translates to 11 years.

That's just the working hours.

Non-working time is not counted.

In other words, the working life of 100,000 hours can basically be used intermittently for twenty or thirty years.

Of course, if it is used intensively, 100,000 hours is not enough. It is better to increase it to 150,000 hours or 200,000 hours.

The service life, the most critical influencing factor, is the life of raw materials.

To be precise, it is the life of the coil.

Stators, rotors, and bearings are not easy to destroy.

The only thing that is easy to break is the coil.

The quality of the coil is mainly derived from copper alloy.

The high-grade coils are made of high-end copper alloys. The quality of copper alloy is directly related to the quality of the coil.

High-end copper alloys are very expensive. The cost is very high. The pressure is high.

In the final analysis, the quality of the motor is mainly related to the raw materials.

The quality of the raw materials and the motors manufactured are of course excellent.

Stator, high magnetic inductance oriented silicon steel.

Rotor, high magnetic inductance oriented silicon steel.

Bearings, cemented alloys, high-temperature corrosion-resistant alloys.

coils, high-grade copper alloys.

Only when every raw material is made of the best can the electric motor be the ultimate.

Does Wang Buan have such conditions?

Yes.

He has all the raw materials.

All the raw materials are of the highest end. Performance is the best.

This is also the reason why the ancient city Yunmao recommended himself.

Have the materials, have the technology, and are you worried that you can't make the best electric motor?