Chapter 391

In the eyes of many people, it may be much easier to make a model than to make a complete thing.

After all, the model is so small that it doesn't take much material or effort.

But people who have made a model, especially those who have made a 1:1 completely real model, will tell you that it is sometimes more difficult to make a model than to make a real one.

Because it's easy to make a small thing big, but it's hard to make a big thing small.

Although what Chen Xin wants to do is a miniature nuclear fusion reactor, his technical requirements are not lower than that of building a large-scale reactor at all, and even his requirements for the machining accuracy of parts are higher than that of a large-scale reactor.

Although the requirements of large-scale nuclear fusion reactor are strict, the tolerance of large-scale equipment still has a certain margin, but when you reduce the equipment in equal proportion, the original tolerance margin will also be reduced.

For example, in large-scale equipment, the error of ± 5 may not exist in the model of equal scale reduction, and the smaller the model, the more so.

Especially when you have to completely restore the structure and function of large-scale equipment, the smaller the machining accuracy, the higher the requirements of the parts. In many cases, the cost is many times higher than that of the parts required by large-scale equipment.

For a simple example, in the existing nuclear fusion reactor technology, the structure of magnetic confinement nuclear fusion device to block neutrons and plasma, prevent high-energy hydrogen ion splashing and serve as heat exchange in the future is called the first wall. In the material selection of nuclear fusion reactor, this first wall has very high requirements.

In reality, the first wall can be processed to a certain thickness to block neutrons. However, when the scale of the model is very small, the thickness of the first wall will become thinner. In this case, if we want to continue to block neutrons, we have higher requirements for it.

Especially the first wall itself is a consumable, with the neutron bombardment of the first wall, its surface will bubble!

Large equipment can rely on the thickness to extend the service life, regular replacement to avoid the first wall being penetrated.

But for a small model, it's very deadly. After all, it's impossible to say that the reactor will stop and change consumables after a few revolutions, right?

This is also the reason why the current nuclear fusion device is becoming bigger and bigger. Because of technical reasons, only by making the device bigger can the expected performance be achieved, so as to realize the ignition of nuclear fusion.

However, what Chen Xin wants to do is just a model for verifying technology. If it's not too exaggerated, he even wants to make a model as big as a table.

But in the end, he made a compromise with reality. Instead of building an iron man led lamp, he built a miniature reactor about one person high.

Although it is a miniature reactor with the same model, the structure and function of the nuclear fusion reactor previously conceived by Chen Xin can be reproduced on this miniature reactor, and it can really ignite and react, and the reaction can be controlled, and it can continuously and stably output energy.

To achieve this, it is obvious that there are very strict requirements on the materials and technology for manufacturing this micro reactor.

Fortunately, Chen Xin's drawing is a product after the system has been upgraded, and the tools he uses to make parts are also the mechanical arm and worktable produced by the system, so there is no problem in terms of machining accuracy and part quality.

As for the materials used to make the micro reactor, Chen Xin chose to obtain some of the core parts by upgrading the system, while other parts were obtained from the national scientific research department. After obtaining the materials, they were processed by the workbench and manipulator. As like as two peas,

did not only make a small upgrade to his own arm, but also made a similar drawing in the office of the camp, and had the function of drawing, scanning and upgrading in the office of the shelter in order to process these parts. Chen Xin did not only make a small upgrade to his own arm.

Because of this, Chen Xin was able to upgrade the drawings of the heating hub, the energy tower and the nuclear fusion reactor.

After upgrading the drawings, not only the technical design was optimized, but also the parts were optimized. The requirements of the drawings specially adjusted the upgrading direction for the parts were simplified and the difficulty was reduced, and Chen Xin's idea of manufacturing a micro reactor verification technology was realized.

Because it's just a micro reactor, it doesn't need a lot of related materials, and some rare materials are used in a small amount. So when the helicopter came for the second trip and pulled away Chen's newly upgraded heavy mecha, it also brought the materials he needed.

It has to be said that after the aircraft regained its flying ability, at least the transportation became much more convenient.

After Chen Xin got the materials sent by air express, he directly started the manufacturing of the micro reactor. However, because there are other things to deal with, he basically goes to deal with other things in the morning every day. In the afternoon, he comes to the military camp to manufacture the parts of the micro reactor, and goes back to sleep at night.

In fact, to a large extent, this kind of regular work and rest is easy to be understood by people. Whether it's kidnapping, assassination or tracking, it's easy to find flaws and opportunities.

But fortunately, more than half of Chen Xin's time is spent in a military camp with a whole Special Force stationed. When he goes out, he just walks to a camp less than 100 meters away, and there is a combat team to escort and protect him all the way. There is enough guarantee for his safety.Under such circumstances, Chen Xin's manufacturing work on the micro reactor was also carried out smoothly. Various precision parts were manufactured and then assembled.

Soon, the fission furnace part of the micro reactor was completed.

Compared with fusion reaction, fission reaction is undoubtedly much better controlled. In addition to people's years of research on nuclear fission technology, a miniature fission furnace is not very difficult to make.

Of course, this is not difficult for Chen Xin. For others, it is still a very difficult thing.

Because the smaller the reactor, the higher the enrichment of the required nuclear fuel, and the higher the control requirements for the reactor, the higher the difficulty and cost of manufacturing.

And don't confuse radioisotope batteries with nuclear reactors. They are two different things in principle.

Radioisotope battery itself is not nuclear reaction, it is just the use of radioisotope released by the rays with heat energy, heat energy into electric energy.

However, the nuclear reactor uses the energy released by the material during the nuclear reaction to generate heat and convert it into electric energy. There is a big difference between the two in terms of volume and efficiency.

Chen Xin is able to make isotope thermoelectric cells, but this is the first time to build small nuclear reactors.

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