Why buy one get one free?

Because you have to change it at any time!

However, even so, the Air Force Rabbit still doesn't do it. It's going to tire people out.

If you have to overhaul the engine once in 150 hours, how much ground crew, how much machinery and equipment, how much training time do you waste?

An air force brigade doesn't have to do anything else, just repair the engine.

What does overhaul mean?

It's all about taking the engine apart and putting it back together.

It's basically the same as reassembling it once. Then the life span is cut in half. Only 75 hours. Then it was overhauled, and the life span was cut in half again

The Air Force Rabbit is not a fool and resolutely refuses.

As a result, the turbofan 6 until its death did not really fit the aircraft of the active forces.

After turbofan 6, it is Kunlun.

The Kunlun engine also has a lot of problems. High temperatures, vibrations, surges, fuel leaks, flame-breathing tongues, smoke

After Kunlun, it is Taihang.

Part of the problem has not been solved until Taihang.

Perhaps, it has already been partially solved?

After all, Taihang has already obtained new high-end raw materials. It should be able to deal with a lot of bugs.

In the final analysis, it is ultimately a question of raw materials.

At that time, if there were suitable raw materials, the turbofan 6 would definitely be qualified.

For new raw materials, it is not difficult to increase by 50 degrees. Even, a 500-degree boost is fine.

At the beginning, the combustion temperature of the turbofan 6 was 1500 degrees. Even if it is increased by 500 degrees, that is, about 2000 degrees. The maximum temperature of the 135 engine of the US imperialism is only more than 1700 degrees.

"If you can, you'd better make one out as soon as possible. Cheng Kailong couldn't wait.

"If you need it, you can do it right away. Wang Bu'an was in good spirits.

Since you are despised, then fight back.

Say I have a problem with my character?

Say I'm a traitor?

Okay, let's talk with the product.

Backhand to give you a real turbofan 6, to your shock and shock

"Read the data. ”

"Copy the data. ”

Wang Buan gave an order. The No. 1 robot elf was immediately busy.

It requires data measurements of all parts of the turbofan 6 engine, including the most core components, and transmits them to the industrial park at the same time.

The manipulator silently stretched out to disassemble the wreckage of turbofan 6.

A wide variety of machines began to kick in.

Some began to produce high-temperature corrosion-resistant alloys.

Some began to produce high-temperature ceramics.

Some began to produce aviation titanium alloys.

All kinds of rubber seals are also being prepared one after another.

Large and small gears

Bearings large and small

Moments later, a 50-billion-ton hydraulic press began to process turbine blades.

At the same time, the forging of the shell of the engine began.

"This is" Cheng Kailong was dumbfounded, "fully automatic production!"

"Yes!" Wang Buan said unabashedly, "To produce such a simple engine, just go straight to the assembly line." ”

"This, this, this" Cheng Kailong was incoherent in horror.

Oh my God, what kind of technology is this?

How does it feel more sci-fi than the scenes in science fiction movies?

How did Wang Buan do it?

How did he master the technology?

Wang Buyan did not explain.

He deliberately did not explain.

He just wanted Cheng Kailong to see all this, and then he couldn't figure it out.

Cheng Kailong saw it, which means that others also saw it.

But what if you see it?

I don't understand it when I see it!

I can't even read it, how can I do it?

Except for him, Wang Buan, who else can operate? The exclusive secret recipe will not be passed on

"Can I take pictures?" Cheng said.

"Are you afraid of leaks?" Wang Bu'an said.

"I'll take notice. ”

"Then shoot as much as you want. ”

"Thank you. ”

Cheng Kailong took out the video camera.

He didn't use his phone. Mobile phones are not secure. Only the original video recorder is safe.

He took pictures seriously.

Scrupulous.

All eyes and ears.

He's going to write down every detail.

This is a very valuable piece of research. Maybe it will have a significant impact on other researchers.

Five minutes passed

Ten minutes passed

Twenty minutes passed

Thirty minutes passed

The turbofan 6 engine gradually appeared in silhouette.

But it is its basic prototype, which has been gradually formed. It is exactly the same as the wreckage of the turbofan 6.

The installation of the outer duct is complete.

The installation of the connotation tract begins.

This is followed by the three core components of the engine: the high-pressure compressor, the main combustion chamber, and the high-pressure turbine.

Among them, the combustion chamber is the most complex part.

It includes a flame canister, a fuel nozzle, a dilution air hole, a high-pressure gas turbine outlet guide vane, a turbine guide vane, and an afterburner control system

Among them, the most technically difficult are the various turbine blades.

At the beginning, someone attacked the turbine blades of the turbofan 6, which could only hold out for 22 hours, and then it broke.

Although, after continuous improvement, there has been a certain degree of improvement. But it's still a long way from the world's top level.

Cheng Kailong is also very concerned about the quality of various monocrystalline blades.

This small leaf is too technical.

The 9 engines of the Boeing 747 and 767 of the United States use 422 single crystal alloy and have a life of more than 9,600 hours. The 15 engine equipped with 100 fighters uses first-generation directional solidified alloy blades, and the performance of the second-generation single-crystal alloy 484 and the third-generation N6 in the United States far exceeds the level of the first-generation. You can see Airbus and Boeing planes flying in the air day and night, engines working reliably. Some 56 engines have a life of up to 14,000 hours.

In contrast, the engine life of the polar bear is much shorter.

The overhaul interval of 31 was originally only 640 hours, but it was later extended to 800 hours. Despite the fact that fighter engines are positioned differently from civilian turbofan engines, a gap in basic research can be discerned. At present, the gap between the directional solidification single crystal blades that Huaxia can produce and the international level is even greater, and we have more than 10 engines on top.

As for the original MiG-21 J-7, the overhaul time is 100 hours, which is definitely very poor, and frequent refitting will delay the deployment and combat of the aircraft. Of course, the engine life has improved now, and it must be more than 500 hours, but the gap is still very large.

Europe and the United States are very advanced in this regard, and many civil aviation aircraft have an overhaul time of more than 10,000 hours.

Military aircraft, 21 MiG-4 Ghost fighters of the same period as the MiG-79, the life of the 79 engine reached 4000 hours.

The life of 15 engines with 110 can reach 60008000 hours.

The 22 latest replacement of the 136 engine has a life of more than 13000 hours. Until now, this 136 is still not for sale, and there is very little public information, which is very mysterious.

The US imperialists hyped 35 fighter jets all day long, and they were sold at high prices all over the world.

However, 22 refused to take it out. It is conceivable which of these two fighters is more advanced.

"Why is there no hole in the blade?" Cheng Kailong asked suspiciously.

"No, you don't. Wang Buyan shook his head.

"Is it really not needed?"

"There really isn't any. ”

Wang Buan replied in the affirmative. No need is no need.

What requires holes is an ordinary single crystal blade. On the one hand, the holes can reduce weight and on the other hand, it can improve heat dissipation.

At present, the most advanced turbine blades not only have holes in the blades, but also some are hollow. It is very lightweight. But it requires a lot of pressure. At least the heavy pressure resistance should be more than 600 tons. Resistance to high temperatures also needs to be at least 600 degrees Celsius. You can imagine how difficult it is to manufacture.

In addition, there are a variety of turbines of various sizes and specifications in the engine. The blades used in each turbine are the same. However, the blades are completely different from one turbine to another. In other words, each blade needs to use a different mold. Not to mention the technology, even the cost is very high.

Therefore, the aero engine is known as the "crown of the machinery industry", and the turbine blade is known as the "crown jewel", and no one can match it.

"Can I take a look?" Cheng Kailong said cautiously.

"Look. Wang Buan controlled the manipulator and handed over a turbine blade.

It's turbine blades.

Not a monocrystalline blade.

Because monocrystalline technology is not used.

It is directly forged by a hydraulic press of 50 billion tons, and the surface is as smooth as a mirror.

In the hand, it feels heavy and very weighty. Feel this small leaf, at least 1 kg or more. The fingers must be pinched hard or they will hit the ground.

"Is it really okay with such heavy turbine blades?" he asked worriedly.

"It's fine. Wang Buan said lightly.

What does weight matter?

As long as the quality is tough enough.

It is said that the turbofan 6 is a copy, but in fact, it has made major changes.

It uses more titanium alloys.

It uses more high-temperature ceramics.

It uses more composite materials such as polyimide, polyetheretherketone, etc.

Flame retardants, adhesives, and liquid metals are also widely used. The overall weight of the engine is actually reduced a lot. Only the quality of the turbine blades has improved.

Of course, the focus of technology in different eras is different.

"Monocrystalline blades have a life of up to 20,000 hours. My blade has a lifespan of at least 200 million hours. Wang Buan said.

"Do you want to be so exaggerated" Cheng Kailong couldn't help but be skeptical.

Wang Buan's data is too exaggerated.

And 200 million hours?

Are you going to use it for the destruction of humanity?

No wonder others want to speak ill of you behind your back. The main thing is that it is too unstable.

If you say that the blades I produce can also reach a life of more than 10,000 hours, it will sound much better.

Although, 10,000 hours will be seriously questioned. But at least not as exaggerated as 100 million hours. If he reports it truthfully, I'm afraid the leader will look at him with caring eyes. Wang Bu'an is a madman, are you Cheng Kailong also a madman? He is talking nonsense, you are so funny, you actually believe it?

However, Wang Buyan did not explain.

There is no basis for words, let's see the effect.

There are many types of turbine blades, as well as stator blades and rotor blades

There are also transmission shafts and transmission gears

There are also jet exits

The second more.